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  • 1.
    Bergquist, Arne
    et al.
    Lantmäteriet.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Klang, Dan
    Vad är optimal kvalitet på geografisk information som underlag för detaljerad översvämningskartering?2008In: Kart & Bildteknik (Mapping and Image Science), ISSN 1651-792X, no 4, p. 18-20Article in journal (Other (popular science, discussion, etc.))
  • 2.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Betydelse av höjdmodellers kvalitet vid endimensionell översvämningsmodellering2009Report (Other academic)
    Abstract [sv]

    Just nu pågår runt om i Sverige och övriga världen omfattande karteringar för översvämningsrisker. Inte minst på grund av EUs översvämningsdirektiv där det har fastslagits att preliminära riskbedömningar ska ha utförts senast 2011, och för konstaterade riskområden ska riskkartor och riskhanteringsplaner ha producerats senast 2013 respektive 2015. I Sverige har nästan samtliga större vattendrag redan karterats översiktligt, men flera studier har visat att de producerade kartorna är alltför osäkra för att kunna fungera som underlag i många planeringssituationer. Därför måste nytt material tas fram samtidigt som det behövs riktvärden, baserade på kvaliteten av underliggande data, på hur osäkra översvämningskarteringarna är. Denna studie utgör andra delen i ett större projekt ”Kvalitetsbeskrivning av geografisk information för översvämningsmodellering” där det övergripande syftet är att bidra till förståelsen för vilka osäkerheter som finns i samband med översvämningsmodellering. Målet med detta delprojekt är att undersöka hur vattennivåer och översvämningsutbredning förändras vid: stegvis degenerering av höjddata, introduktion av systematiska fel i höjdmodellen, samt olika friktionsvärden på vattendragets botten respektive omgivande mark. Som fallstudie har, liksom i ett tidigare Kris-GIS®-projekt, Eskilstunaån använts. Två områden med olika terrängtyper har undersökts, ett relativt flackt område och ett relativt kuperat område med branta sluttningar ned mot vattendraget, med avsikt att därigenom kunna se skillnader i resulterande översvämning med avseende på terrängens karaktär. Terrängen representerades av miljontals från helikopter laserskannade punkter och vattendragets botten representerades av ekolodade punkter. Vattenflödet simulerades som stationär strömning av storleken 198 m3/s, vilket är SMHIs uppskattning av det högsta beräknade flödet. Som modelleringsverktyg har den endimensionella hydrauliska programvaran HEC-RAS använts och för datapreparering och geografiska analyser har ArcView GIS använts. Följande parametrar undersöktes för att få ett mått på osäkerheten vid försämrade höjddata respektive förändrad markfriktion: vattendragets vattenstånd, bredd, tvärsnittsarea samt översvämningsutbredning. För ökad grad av degenerering av höjddata visade resultaten att vattenstånden endast marginellt ändras medan bredder, tvärsnittsareor och utbredning ändras mer markant. Förutom osäkerhet på grund av degenerering av höjddata (till exempel från referensmodellens 0,78 m cellstorlek till 2-3 m cellstorlek) påverkar av samma storleksordning även osäkerhet i friktionsuppskattning (Mannings n ± 0,01) och inkludering av små systematiska fel (upp till ca 0,1 m i höjdled). Dessutom visade resultaten att osäkerheten skiljer sig markant beroende på hur mycket omgivande mark sluttar mot vattendraget. För planeringsändamål med höga krav rekommenderas höjddata med upplösning upp till 1 m cellstorlek, för allmän detaljplanering upp till 4 m cellstorlek och för översiktlig planering upp till 10-25 m cellstorlek. Vid flacka strandsluttningar bör cellstorleken vara ännu mindre.

  • 3.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Betydelse av höjdmodellers kvalitet vid översvämningsmodellering2009In: ULI aktuellt, ISSN 1654-6016, no 1, p. 8-9Article in journal (Other (popular science, discussion, etc.))
  • 4.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Conceptualization of hydraulic and sedimentary processes in downstream reaches during flushing of reservoirs2005In: Proceedings of the XXXI IAHR Congress [Elektronisk resurs]: Water engineering for the future : choices and challenges : COEX Seoul September 11-16, 2005, Seoul: Korea Water Resources Association , 2005, p. 2577-2588Conference paper (Refereed)
    Abstract [en]

    The main focus of this paper is to describe the active hydraulic and sedimentary processes in downstream river reaches during flushing of sediments from reservoirs. During flushing extreme amounts of sediment may be released. Therefore, these processes are different than those downstream from dams and reservoirs not subjected to flushing. Hence, also the effects differ, which knowledge of may be of value for biologists, etc. During flushing of a reservoir a wave will be released to the downstream reaches. This wave can be divided into one water part and one sediment part. Initially they are in phase with each other, but with increased distance downstream from the dam, the transported sediment lags behind the water due to different traveling velocities. The paper treats when and where sedimentation occurs, and how this is related to the different traveling velocities of water and sediment. Also included are discussions on how the downstream effects during flushing differ from non-flushing effects, how visualization of effects can enhance both the analysis and communication with planners, politicians, etc., as well as discussions on how the studies of these effects can benefit from improved field-work methods.

  • 5.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Föreläsningar - övningar - eller?: en jämförande studie av undervisningsmetoder inom gevärsskytte och geografiska informationssystem2004In: Kunskap & lärande i den högre utbildningen: lärarreflektioner från praktiken, Gävle: Pedagogiska rådet, Högskolan i Gävle , 2004, p. 19-38Chapter in book (Other academic)
  • 6.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Geoinformatics 2004: Proceedings of the 12th International Conference on Geoinformatics : Geospatial Information Research : Bridging the Pacific and Atlantic. University of Gävle, Sweden, 7-9 June 20042004Conference proceedings (editor) (Other academic)
    Abstract [en]

    FOREWORD

    Geoinformatics 2004, the 12th International Conference on Geoinformatics, is the premier research forum for Geospatial Information Research. It commenced in 1992 in Buffalo, and has been held every year since. Meetings have been held in North America and Asia in Beijing (1993), Calgary (1994), Hong Kong (1995), West Palm Beach (1996), Taipei (1997), Beijing (1998), Ann Arbor (1999), Monterey (2000), Bangkok (2001), Nanjing (2002), and Toronto (2003, cancelled due to the outbreak of SARS). This is the premier event organized by the University of Gävle, together with the Association of Chinese Professionals in Geographic Information Science (CPGIS-abroad).

     

    This conference is the first of the series that takes place in Europe, hence the subtitle of the conference - bridging the Pacific and Atlantic. I believe it offers an opportunity for all professionals involved in research and development of geographic information systems, global position systems and remote sensing to discuss new theories and technologies around geoinformatics research.

     

    Based on the extended abstracts and following advice from the program committee, the organizing committee selected 108 papers (involving 264 authors from 29 different countries) around 10 different themes included in the proceedings. The conference themes include some emerging research issues such as location-based services and geovisualization as well as long studied conventional issues. As a post-conference publication effort, some selected papers around special themes will go another round of review process to be published in special issues with some scientific journals.

     

    The organization of the event is rather team-oriented work. On behalf of the organizing committee, I would like to thank CPGIS, the University of Gävle, our sponsors and all those individuals involved in making it a successful event, in particular, Kickan Fahlstedt, the conference secretary who took most administrative and organizational matters into her hands; Anders Brandt who read the papers and provided useful comments to the authors; Bengt Eriksson, Stig-Göran Mårtensson, and Bengt Rystedt who are always very supportive for the event; Peter Fisher and David Maguire who share their vision on current geoinformatics research; and all the authors who contribute with their papers of high quality.

     

    Last but not least, the following colleagues or students deserve special thanks for their contributions to the organization of the conference: Gunter Göckelmann, Pia Ollert- Hallqvist, Anna Hansson, Neta Hedberg, Elisabeth Hugg, Mikael Johansson, Rebecca Jonsson, Hendrik Loch, Bengt-Olof Lundinger, Staffan Nygren, Kaj Wejander, and Wenjun Xie.

     

    Welcome to the Geoinformatics 2004, and enjoy your stay in Gävle!

     

    Bin Jiang

    Co-chair of the organizing committee

     

    ---

     

    CONTENTS - VOLUME 1

    Keynote session

    The logic of fuzzy detecting change in geographical information, p. 3

    P. Fisher

    Distributed GIS: computing in the internet age, p. 4

    D. Maguire

    Plenary session

    About egocentric geovisualisation, p. 7

    L. Meng

    Shannonian, semantic and pragmatic geoinformation, p. 15

    J. Portugali

    Spatio-temporal modelling and analysis of geolifelines, p. 22

    C. Claramunt

    Location-based service, mobile GIS and GPS

    Location-based solutions for application services, p. 25

    K.H. Kim, S.G. Hong, J.H. Park and J.H. Lee

    A test-bed simulator for GPS and GIS integrated navigation and positioning research: - bus positioning, using GPS observations, odometer readings and map matching, p. 31

    J. Li, G. Taylor, C. Brunsdon, A. Olden, D. Steup and M. Winter

    Real-time map labelling for personal navigation, p.  39

    Q. Zhang and L. Harrie

    Multi-criteria decision analysis for location based services, p.  47

    M. Raubal and C. Rinner

    Map generalization for OSMasterMap data in location based services & mobile GIS applications, p. 54

    S. Anand, J.M. Ware and G.E. Taylor

    The media and the messages of location-based services (LBS): death of distance or the revenge of geography?, p. 61

    D.Z. Sui

    Real time community mapping: evaluating two wireless technology approaches, p. 69

    Y. Lao

    Digital data collection and analysis techniques for forestry applications, p. 77

    M.G. Wing and L.D. Kellogg

    A review of research and development on intelligent transport systems in Hong Kong - a geographic information system perspective, p. 84

    W.Z. Shi and H.K. Lam

    A distributed architecture for WAP-based mobile GIS, p. 92

    Wang F., Bian F. and Hou Y.

    Efficient routing service for the open LBS services, p. 99

    S.-S. Kim and J.-H. Park

    Network perspective for spatial data distribution on wireless environments, p. 107

    E. Lee, M.-J. Kim, M. Kim and B.-T. Jang

    Precise navigation with the use of buffer zones, p. 115

    A. Banachowicz and J. Uriasz

    The implementation of presentation service using JAVA web services, p. 120

    T.-W. Heo and J.-H. Park

    An open architecture of common core component for location based service, p. 127

    J.-C. Kim, J.-H. Park and J.-H. Lee

    Open LBS solution architecture using service chaining webservices technology, p. 134

    S.-G. Hong, K.-H. Kim and J.-H. Park

    Analysis accuracy integrated position of hyperbolic system JEMIOLUSZKA and satellite navigation system GPS, p. 139

    A. Banachowicz and R. Kamiński

    Spatio-temporal modelling and databases

    A web-based multimedia framework for diffusing spatio-temporal information: application to natural hazards, p. 149

    P-A. Davoine, J. Gensel and H. Martin

    Continuous data warehouse: concepts, challenges and potentials, p. 157

    T.O. Ahmed, M. Miquel and R. Laurini

    An extended locking method for geographical database with spatial rules, p. 165

    Cheng C., Shen P., Zhang M. and Lu F.

    A hybrid approach to detect spatial-temporal outliers, p. 173

    T. Cheng and Z. Li

    A knowledge-based restricted problem solving method in GIS applications, p. 179

    Wei H., Xu Q. and Bai Y.

    Representation of moving objects along a road network, p. 187

    N. Van de Weghe, A.G. Cohn, P. Bogaert and P. De Maeyer

    A three-dimensional temporal GIS for the analysis of morphometric changes, p. 195

    M. Sriti, R. Thibaud and C. Claramunt

    Quality assessment and uncertainty handling in spatial data mining, p. 203

    B. He, T. Fang and D. Guo

    From the schema matching to the integration of updating information into user geographic databases, p. 211

    A. Braun

    Construction and specification of spatial configurations in a geographical information retrieval context, p. 219

    M. Ould Ahmed Limam and M. Gaio

    A new tetrahedral network (TEN) generation algorithm for 3-D GIS, p. 226

    Song Z., Liu Y. and Niu W.

    GIS data modeling of 17th century fortresses on Dardanelles, p. 233

    C. Guney, B. Yuksel and R.N. Celik

    The spatial data server based on open GIS standards in heterogeneous distributed environment, p. 241

    M.-J. Kim, E. Lee, B.-W. Oh and M. Kim

    Vector cellular automata based geographical entity, p. 249

    Hu S. and Li D.

    A method for testing low-value spatial clustering, p. 257

    G. Lin and T. Zhang

    Research on Petri Net based spatiotemporal data model, p. 265

    Yin Z. and Li L.

    Advances in earth observation technologies

    Lossless inter-array predictive coding for subpixel-shifted satellite images based on texture analysis, p. 275

    Gao S., Zhang X.J. and Sun W.D.

    Visualizing distributions from multi-return lidar data to understand forest structure, p. 283

    D. Kao, M. Kramer, A. Love, J. Dungan and A. Pang

    3D scanning and photogrammetry for heritage recording: a comparison, p. 291

    W. Boehler and A. Marbs

    On modelling and visualisation of high resolution virtual environments using LIDAR data, p. 299

    S. Ahlberg, U. Söderman, M. Elmqvist and Å. Persson

    The utilization of GPR data in GIS, p.  307

    Chen B.Z., Hu Z.Q. and Li W.D.

    APIAS - Airborne photos and images attainment system, p. 311

    J.C.C. Gonçalves Junior, E.C. Piovesan, G.C. Silveira and E.A. Silva

    Geovisualisation

    Representation of geographic terrain surface using global indexing, p. 321

    J. Kolar

    Geo-visualization support for multidimensional clustering, p. 329

    G. Andrienko and N. Andrienko

    Annotated observations as knowledge construction elements in visual data analysis, p. 336

    I. Denisovich

    3D geovisualization as a communication and analysis tool in fluvial geomorphology, p. 339

    S.A. Brandt and B. Jiang

    A study on algorithms of a 3D visualization dynamic modification system based on TIN, p. 347

    P. Yang, H. Lin, S.J. Mao and D. Shen

    A multi-user mobile system to visualize environmental processes, p. 355

    J. Danado, E. Dias, T. Romão, N. Correia, A. Trabuco, C. Santos, J. Serpa, M. Costa and A. Câmara

    Interacting with 17th century fortresses on Dardanelles through web-based geo-visualization, p. 363

    C. Guney and R.N. Celik

    Visualization of landscape data in digital maps by exclusive use of XML-based languages, p. 370

    K. Neumann, P. Ahlbrecht, S. Eckstein, B. Mathiak and A. Kupfer

    Embedding digital rights in geovisualizations, p. 375

    J. Döllner

    Experimental research on web-based 3D terrain visualization - using Java3D and Microsoft.Net, p. 383

    Wang Y., Tan H. and Liu J.

    The principles of designing CIS - cartographic information system, p. 389

    Zheng S. and Chen Y.

    A network common data form (NetCDF) utility for efficient environmental data processing and visualization, p. 397

    J. Liu, J.M. Chen, D.T. Price, and S. Liu

    Design and implementation of high precision map symbol library based on GDI+, p. 405

    Wu X., Du Q., Cai Z. and Xu Z.

    User-centered 3D geovisualisation, p. 412

    A. Nielsen

    Studying groundwater resource by volume visualization technology, p. 417

    Zhu G., Xu Z., Wu X. and Yan H.

    Cognition theory-based research on adaptive user interface for GEO-visualization system, p. 424

    Ling Y., Chen Y. and Wang Y.

     

    CONTENTS - VOLUME 2

    GIS in urban planning and modelling

    Spatial patterns of urban growth in Nepal: a GIS-assisted analysis, p. 435

    M. Adhikari, B.A. Portnov and M. Schwartz

    What's planning (support system design)?, p. 443

    M. Campagna and G. Deplano

    GIS and remote sensing for urban planning: a case of Festac town, Lagos, Nigeria, p. 451

    M.J. Fasona and A.S. Omojola

    Geographical information systems on the web for public participation in planning, p. 459

    O. Gudes, E. Stern and T. Svoray

    Study on China National Park planning supported by spatial information technology, p. 464

    Dang A., Liu X., Yang R. and Zhuang Y.

    Uncertainty and data quality

    Uncertainty evaluation of military terrain analysis results by simulation and visualization, p. 473

    P. Horttanainen and K.Virrantaus

    Defuzzification operators for geographical data of nominal scale, p. 481

    T. Hatzichristos and J. Potamias

    Fuzzy model and Kriging for imprecise soil polygon boundaries, p. 489

    R. Sunila, E. Laine and O. Kremenova

    Fuzzy description of fuzzy direction relations and their similarities, p. 496

    Du S., Wang Q. and Yang Y.

    A new approach for modeling uncertainty in remote sensing change detection process, p. 503

    A. Alimohammadi, H.R. Rabiei and P.Z. Firouzabadi

    GIS in environmental management and decision making

    Mapping landslide susceptibility in the Three Gorges area, China using GIS, expert systems and fuzzy logic, p. 511

    A-X. Zhu, R. Wang, J. Qiao, Y. Chen, Q. Cai and C. Zhou

    A 3D GIS for managing building rehabilitation process, p. 518

    F. Ramos, D. Siret and M. Musy

    Spatial-temporal carbon sequestration under land USE and land cover change, p. 525

    S. Liu, J. Liu and T.R. Loveland

    GIS based analysis of store closure: a case study of an Office Depot store in Cincinnati, p. 533

    Y. Xu and L. Liu

    Branch bank closures in Sydney: a geographical perspective and analysis, p. 541

    L. Zhao, B. Garner and B. Parolin

    Integration of multidisciplinary knowledge and modelling techniques for a river-SDSS, p. 549

    J. Möltgen and G. Schmidt

    Applications of GIS and RS for land use dynamics monitoring in the rim zone of North China, p. 557

    Z. Qin, B. Xu, J. Liu and W. Zhang

    A methodology for siting a water harvesting reservoir, p. 565

    W.M. Jabre and F.A. Awar

    Landscape indices for comparison of spatial forest patterns in different geographical regions, p. 573

    E.M. De Clercq and R.R. De Wulf

    GIS in spatial management on a local level of administration in Poland, p. 578

    P. Fogel and J. Fiszczuk-Wiktorowicz

    Development of spatial GIS database for monitoring on dynamic state of grassland productivity, p. 585

    and animal loading balance in Northern China

    B. Xu, X. Xin, Z. Qin, H. Liu, Z. Chen, G. Yang, W. Wu, Q. Zhou and X. Wu

    Remote sensing coupled to a database of catchments and coastal zones, p. 593

    S.G. Halldórsdóttir and H. Þorbergsson

    Regionalization of N2O measurements for the North China Plain, p. 599

    G. Bareth and M. Kogge

    Application of RS and GIS in ecological environmental dynamic monitoring and management information system, p. 607

    Liao K.

    Geospatial cancer analysis for the state of Santa Catarina, brazil - environmental parameters considered, p. 615

    C.E. Hübner and F.H. Oliveira

    Information extraction from remote sensing data

    Object-based updating of land-use maps of urban areas using satellite remote sensing, p. 623

    R.J. Dekker

    Multiscale object-specific analysis: scale problems and multiscale solutions, p. 631

    O. Hall, G.J. Hay and D.J. Marceau

    A greedy point algorithm derived by Gabor filter bank for IKONOS satellite image segmentation, p. 639

    N. Nezamoddini-Kachouie and J. Alirezaie

    A modeling-based threshold approach to derive change/no change information over vegetation area, p. 647

    Y. Hu, S.M. de Jong and R. Sluiter

    A neural network approach for information extraction from remotely sensed data, p. 655

    J. Liu, G. Shao, H. Zhu and S. Liu

    New stereo matching and 3D view generation algorithms using aerial stereo images, p. 663

    J.-C. Kim and J.-H. Park

    Comparison of remote sensing based analysis of crop diseases by using high resolution multispectral and hyperspectral data - case study: Rhizoctonia solani in sugar beet -, p. 670

    R. Laudien, G. Bareth and R. Doluschitz

    A comparison of land-use classification with sampled IKONOS and TM imagery, p. 677

    Tang Z. and Zhu L.

    Quality study of ASTER data geometry by digitize contour lines in ILWIS, p. 683

    A. Partovi, K. Grabmaier and J. Hendrikse

    A new algorithm for map projection reverse transformation in GIS, p. 691

    Teng J., Huang W. and Sun M.

    Exploitation of geospatial techniques for studying the snow and water runoff parameters, p. 699

    A.S. Almas, M. Azam, M.J. Butt and S. Amer

    Land cover mapping of Khulna City applying remote sensing technique, p. 707

    M. Billah and G.A. Rahman

    Integration of ground sampling with satellite imaging through GIS database to monitor rangeland productivity for grazing in north China, p.  715

    Z. Qin, B. Xu, W. Li, W. Zhang and J. Liu

    Forestry inventory and information systems in developing countries: constraints and benefits, p. 723

    S.M. Malaza, P.G. Abbot and S. Mabena

    Multi-scale representation and generalisation

    Building a multi-granularity based spatial database, p. 733

    Cheng C. and Lu F.

    Automated generalisation in a multiple representation database, p. 741

    M. Dunkars

    Data update across multi-scale databases, p. 749

    H.-K. Kang, J.-W. Moon and K.-J. Li

    Modelling urban road networks integrating multiple representations of complex road and junction structures, p. 757

    N.N. Ulugtekin, A.O. Dogru and R.C. Thomson

    Streaming of compressed multi-resolution geographic vector data, p. 765

    J. Persson

    Metadata and spatial data infrastructure

    A hierarchical framework to aid the entry of metadata, p. 775

    J.-H. Hong, Y.-H. Chen and H.-P. Liao

    Building a taxonomy of GI knowledge - using Bloom's taxonomy to evaluate non-professional users' understanding of GI, p. 783

    M. Arleth

    Opportunities and challenges for SDI development in developing countries - a case study of, p. 789

    Uganda

    M. Musinguzi, G. Bax and S.S. Tickodri-Togboa

    SDI and network-based GIS for disaster management, p. 797

    A. Mansourian, A. Rajabifard and M.J.V. Zoej

    Discovering structure in geographical metadata, p. 805

    I. Podolak and U. Demšar

    Map interface valid coverage analysis based on XML metadata, p. 812

    H.-P. Liao and J.-H. Hong

    A cadastral domain model, p. 820

    J.M. Paasch

  • 7.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Rapport från Utbildningssektionens årliga utbildningskonferens2009In: Kart- & bildteknik, ISSN 1651-792X, Vol. 2009, no 3, p. 18-19Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Kartografiska sällskapets utbildningssektion genomför varje år de så kallade lärardagarna, en utbildningskonferens som kretsar kring geografisk information. Tilltänkta deltagare är alla, både utbildare och avnämare, som har intresse av utbildningsfrågor från skol- till universitetsnivå. Den 17 till 18 augusti detta år stod KTH som värd, med Hans Hauska hållande taktpinnen, och med 19 deltagare från ett tiotal olika arbetsgivare.

  • 8.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Resolution issues of elevation data during inundation modeling of river floods2005In: Proceedings of the XXXI IAHR Congress [Elektronisk resurs]: Water engineering for the future: choices and challenges. COEX Seoul September 11-16, 2005, Seoul: Korea Water Resources Association , 2005, p. 3573-3581Conference paper (Refereed)
    Abstract [en]

    A case study of the Eskilstuna River in Sweden is presented. This study is carried out within the project KRIS-GIS®, a Swedish initiative of handling crisis situations, including flooding. The purpose is to show how different resolutions in input elevation data affect the resulting inundation maps. Terrain elevation points at the sides of the river were gathered from an airborne laser altimetry survey, and river bed elevations were gathered from an echosounding survey. The terrain model was constructed in ArcView GIS as a triangulated irregular network (TIN), which served as the base for all later modeling. The hydraulic modeling was done as one-dimensional steady flow in HEC-RAS flow routing software. High-resolution elevation data resulted in better inundation delineation than did lowresolution elevation data. If the mean water discharge was used in the modeling and if the river is narrow, a low resolution could even lead to that the river itself would not be marked as inundated. At high water discharges, the river was usually inundated, but there was great uncertainty if the riparian areas really would be flooded or not. With steep side slopes, the delineation of inundation becomes more certain, while at gentler side slopes, the flow is distributed on a larger surface with a risk that the raster cells will be incorrectly marked regarding inundation. Finally, the use of high-resolution elevation data compared with lowresolution data, makes estimates of friction factor, Manning’s n, relatively more important for correct results in inundation studies.

  • 9.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Svensk kartografiutbildning i ett historiskt perspektiv2008In: Kartan i våra hjärtan: Kartografiska Sällskapet 100 år 2008, Stockholm: Kartografiska Sällskapet , 2008, p. 305-318Chapter in book (Other (popular science, discussion, etc.))
  • 10.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    The University Exchange Programme and the Master's Programme for ALAGaC Employees: Report No. MN 3-14 in the project Capacity Building in Human Resource Development to Strengthen the Land Administration Sector of Mongolia, September 20062006Report (Other (popular science, discussion, etc.))
  • 11.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Utbildning och kompetensutveckling inom lantmäteri, kartografi, GIS och mätningsteknik2008In: Atlas: Geografi och kartor — igår — idag — imorgon, ISSN 1654-9015, Vol. 1, p. 34-34Article in journal (Other (popular science, discussion, etc.))
  • 12.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Översvämningsmodellering i GIS: betydelse av höjdmodellers upplösning applicerat på Eskilstunaån - ett delprojekt i KRIS-GIS®2005Report (Other academic)
    Abstract [sv]

    Under senare tid har översvämningar alltmer uppmärksammats av allmänhet, politiker, myndigheter och organisationer. Samtidigt har allt fler insett att det inte är en fråga om en översvämning kommer att ske utan när och hur stor den blir. Detta innebär att översvämningsrisker ständigt måste vara en närvarande del i politikers, planerares och krisberedskapsorganisationers arbete. Ett sätt att vara väl förberedd inför översvämningar är att ta fram översvämningsområden för olika stora vattenflöden. Därför har det inom projektet KRIS-GIS®, beställt och finansierat av Krisberedskapsmyndigheten, gjorts en mer detaljerad specialstudie över översvämningar kring Eskilstunaån. Tillförlitligheten hos framtagna översvämningsområden beror framför allt av två faktorer: korrekt vattenflödessimulering och korrekt beskrivning av terrängen. I denna studie har den endimensionella modellen HEC-RAS använts för flödessimuleringen och för beskrivning av terrängen har en flygburen 3D-laserskanning över området kring Eskilstunaån utförts. Dessutom har ekolodning utförts för att möjliggöra beskrivning av bottentopografin i Eskilstunaån. Samtliga höjddatapunkter kopplades ihop i ett GIS till ett triangulärt oregelbundet nätverk, TIN. Därefter lades sektioner tvärs över vattendraget och omgivande terräng. Dessa tvärsektioner tilldelades höjdvärden från TIN-modellen innan de exporterades till HEC-RAS. Fyra olika vattenföringar simulerades i HEC-RAS: medelvattenföringen på 23,7 m3/s, årsfloden på 70 m3/s, 100-årsflödet på 123 m3/s samt högsta beräknade flödet på 198 m3/s. Dessutom har det gjorts några alternativa körningar med varierande värden på Mannings n, dvs. markfriktion. Efter körningar i HEC-RAS, exporterades resulterande vattennivåer tillbaka till GISet där ett resultatraster skapades, där varje rastercell visades som översvämmad eller ej, och i förekommande fall översvämmat djup. Resultaten av översvämningsanalyserna visar att betydligt säkrare översvämningsprognoser nu kan göras när tillgång till terrängmodeller av hög kvalitet finns. Vid tidigare studier har Lantmäteriets höjddatabas använts, där höjder finns representerade med ett värde per 50-metersruta. Från att terrängmodellen har varit den begränsande faktorn övergår i stället en korrekt beskrivning av markens råhet eller friktion, uttryckt som Mannings n, till att vara den begränsande faktorn. Det rekommenderas därför att differentiera råhetsvärdena beroende på vilken markanvändningstyp som finns längs med vattendraget. Speciellt viktigt är detta i flacka områden. För Eskilstunaåns nordligaste delar är det viktigt att vattennivån i Mälaren bedöms korrekt. För att sprida och kunna dra nytta av resultaten framtagna i KRIS-GIS®-projektet rekommenderas det att färdiga översvämningspolygoner kan användas av kommuner, räddningstjänst osv. i deras arbete. De kan ringa eller automatiskt få information, från t.ex. SMHI eller vattenregleringsföretag, som innehåller upplysningar om förväntade flöden. Motsvarande polygon för förväntat flöde visas i ett GIS och direkt har man lägesbilden klart för sig. Utöver detta har även visualiseringsaspekter behandlats.

  • 13.
    Brandt, S. Anders
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Arnberg, Wolter
    Stockholm University.
    A harmonized GIS course curriculum for Swedish universities2007In: EUC'07 HERODOT Proceedings: ESRI European User Conference 2007: Stockholm, Sweden, 25-27 September 2007, 2007, p. 10 s.-Conference paper (Other academic)
    Abstract [en]

    With the implementation of the Bologna declaration, European and other universities must change or adjust courses and programmes so they fit into the Bologna model. In Sweden this will take place during 2007. The intention with the declaration, for example, is that a basic course in one subject at one university should be treated as equivalent to the same type of course at another university. Once a year, the recently formed section for education of the Swedish Cartographic Society gathers university lecturers and others for an education conference to discuss matters concerning higher education in geomatics, geoinformatics, geography, etc. Last year’s conference identified the need for a harmonized course curriculum in basic GIS. One of the advantages of such a course is easier transfer of study records for inclusion of course credits in study programmes at other universities. Therefore, an attempt has been made to write a harmonized course curriculum for basic GIS. The course will contain about 50% common content and about 50% of content decided by the individual university. The common content will be described as learning outcomes, and then it is up to the universities to place the learning outcomes into a context. Thanks to this common core, the course can be given for such diverse programmes as archaeology, land surveying, or economy, and still be able to include the required knowledge for students to continue on more advanced courses at other universities.

  • 14.
    Brandt, S. Anders
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Bergquist, Arne
    Lantmäteriet.
    Översvämningskarteringars tillförlitlighet2009In: Kart & Bildteknik (Mapping and Image Science), ISSN 1651-792X, no 4, p. 33-35Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    I ett tidigare nummer av Kart & Bildteknik beskrevs ett pågående forskningsprojekt som försökte ta reda på om det finns en optimal kvalitet på geografisk information som underlag för detaljerad översvämningskartering (Bergquist, Brandt & Klang, 2008). Projektet är nu avslutat och avrapporterat i Brandt (2009) och Klang och Klang (2009). Av resultaten framgår bland annat hur mycket tillförlitligheten av en översvämningskartering minskar med graden av försämrad höjdmodell, vilken utgör ett av de viktigaste underlagen för en översvämningsanalys. I samband med EUs översvämningsdirektiv (Europaparlamentets och rådets direktiv, 2007) föranleder detta en diskussion om vilka översvämningskarteringar som krävs för att uppfylla direktivet.

  • 15.
    Brandt, S. Anders
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Jiang, Bin
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    3D geovisualization as a communication and analysis tool in fluvial geomorphology2004In: Geoinformatics 2004: proceedings of the 12th International Conference on Geoinformatics - Geospatial Information Research: Bridging the Pacific and Atlantic, University of Gävle, Sweden, 7-9 June 2004, Gävle: Gävle University Press , 2004, p. 339-346Conference paper (Refereed)
    Abstract [en]

    The fields of hydrology and fluvial geomorphology get more and more attention in the general public. The reason for this is changed climate patterns with increased frequencies of storms and river flooding and as a result changed geomorphology and living conditions for the inhabitants of the area. With the development of 3D geovisualization, hydrological and geomorphological processes can be better simulated and visualized. Thus not only the domain specialists, but also the general public can appreciate very complex hydrological processes and resulting geomorphology. This is of great value since a high frequency of storms and flooding has been a big issue for politicians, planners, and the general public. It is in this sense that 3D geovisualization can be an important tool for analysis and communication. Complex hydrological and geomorphological processes can be effectively simulated and analyzed by the domain specialists while efficient and effective visualization provides a common platform for communication among domain specialists and the general public. This paper will discuss and illustrate these issues using a case study of geomorphology along the Reventazón River, downstream from the Cachí Reservoir in Costa Rica, due to the release of extreme amounts of sediment during flushing of the reservoir.

  • 16.
    Brandt, S. Anders
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Karlsson, Janne Margrethe
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Ollert-Hallqvist, Pia
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Harmonization of GI educations in Sweden and the Bologna process: viewpoints of University of Gävle2006In: Fifth European GIS Education Seminar (EUGISES 2006), 2006, p. 10-Conference paper (Refereed)
    Abstract [en]

    With the implementation of the Bologna declaration, many study programmes and course curricula needs to be updated and revised. This paper describes the current situation in Sweden regarding GIT educations and courses and whether a harmonization is needed. A survey was made to see which GIT courses that are given and at which level they are given at the various universities. For some universities, interviews were conducted about their courses’ contents and their strategies for determining course levels. Discussions were also made about harmonization of courses between Swedish universities. Some problems due to lack of harmonization was noted, which probably will be more severe in the future due to increased student mobility. To harmonize courses, Bloom’s revised taxonomy is put forward as a tool which is used to clearly state the level of the course in relation to learning objectives.

  • 17.
    Brandt, S. Anders
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Larsson, Anders
    Göteborgs universitet.
    Kartografiska Sällskapets utbildningssektion: ett nytt tillskott i KS-familjen2006In: Kart- & bildteknik, ISSN 1651-792X, Vol. 21, no 2, p. 10-11Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    På Kartografiska Sällskapets årsmöte i Jönköping den 21 mars beslutades att inrätta en ny sektion inom sällskapet – en utbildningssektion. Denna artikel beskriver bakgrunden till sektionen och dess verksamhetsidé. Utbildningssektionens embryo tillkom för tre år sedan efter förslag från ULI som delegerade uppgiften till Geomatikprogrammet vid Högskolan i Gävle. Tanken vara att skapa ett forum för lärare inom geomatikområdet. Både för att sammanföra lärare från olika lärosäten, för att öka förståelsen för varandras arbeten, och för att kunna förbättra möjligheterna till samarbete.

  • 18.
    Brandt, S. Anders
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS. University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Lim, Nancy J.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS. University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Visualising DEM-related flood-map uncertainties using a disparity-distance equation algorithm2016In: The spatial dimensions of water management: Redistribution of benefits and risks / [ed] A. H. Schumann, G. Blöschl, A. Castellarin, J. Dietrich, S. Grimaldi, U. Haberlandt, A. Montanari, D. Rosbjerg, A. Viglione, and S. Vorogushyn, Göttingen: Copernicus Publications on behalf of International Association of Hydrological Sciences (IAHS) , 2016, p. 153-159Conference paper (Refereed)
    Abstract [en]

    The apparent absoluteness of information presented by crisp-delineated flood boundaries can lead tomisconceptions among planners about the inherent uncertainties associated in generated flood maps. Even mapsbased on hydraulic modelling using the highest-resolution digital elevation models (DEMs), and calibrated withthe most optimal Manning’s roughness (n) coefficients, are susceptible to errors when compared to actual floodboundaries, specifically in flat areas. Therefore, the inaccuracies in inundation extents, brought about by thecharacteristics of the slope perpendicular to the flow direction of the river, have to be accounted for. Instead ofusing the typical Monte Carlo simulation and probabilistic methods for uncertainty quantification, an empiricalbaseddisparity-distance equation that considers the effects of both the DEM resolution and slope was used tocreate prediction-uncertainty zones around the resulting inundation extents of a one-dimensional (1-D) hydraulicmodel. The equation was originally derived for the Eskilstuna River where flood maps, based on DEM dataof different resolutions, were evaluated for the slope-disparity relationship. To assess whether the equation isapplicable to another river with different characteristics, modelled inundation extents from the Testebo Riverwere utilised and tested with the equation. By using the cross-sectional locations, water surface elevations, andDEM, uncertainty zones around the original inundation boundary line can be produced for different confidences.The results show that (1) the proposed method is useful both for estimating and directly visualising modelinaccuracies caused by the combined effects of slope and DEM resolution, and (2) the DEM-related uncertaintiesalone do not account for the total inaccuracy of the derived flood map. Decision-makers can apply it to alreadyexisting flood maps, thereby recapitulating and re-analysing the inundation boundaries and the areas that areuncertain. Hence, more comprehensive flood information can be provided when determining locations whereextra precautions are needed. Yet, when applied, users must also be aware that there are other factors that caninfluence the extent of the delineated flood boundary.

  • 19.
    Brandt, S. Anders
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Urban and regional planning/GIS-institute.
    Lim, Nancy Joy
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Urban and regional planning/GIS-institute.
    Importance of river bank and floodplain slopes on the accuracy of flood inundation mapping2012In: River Flow 2012: Volume 2 / [ed] Rafael Murillo Muñoz, Leiden, The Netherlands: CRC Press / Balkema (Taylor & Francis) , 2012, p. 1015-1020Conference paper (Refereed)
    Abstract [en]

    Effective flood assessment and management depend on accurate models of flood events, which in turn are strongly affected by the quality of digital elevation models (DEMs). In this study, HEC-RAS was used to route one specificwater discharge through the main channel of the Eskilstuna River, Sweden. DEMs with various resolutions and accuracies were used to model the inundation. The results showed a strong positive relationship between the quality of theDEMand the extent of the inundation. However, evenDEMswith the highest resolution produced inaccuracies. In another case study, the Testebo River, the model settings could be calibrated, thanks to a surveyed old inundation event. However, even with the calibration efforts, the resulting inundation extents showed varying degrees of deviation from the surveyed flood boundaries. Therefore, it becomes clear that not only does the resolution of the DEM impact the quality of the results; also, the floodplain slope perpendicular to the river flow will impact the modelling accuracy. Flatter areas exhibited the greatest predictive uncertainties regardless of the DEM’s resolution. For perfectly flat areas, uncertainty becomes infinite.

  • 20.
    Brandt, S. Anders
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Mårtensson, Stig-Göran
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Utbildning inom kart- och mätningsteknik2008In: Sveriges kartläggning: tillägg 1998-2007, Gävle: Kartografiska sällskapet , 2008, p. 208-213Chapter in book (Other (popular science, discussion, etc.))
  • 21.
    Brandt, Sven Anders
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Modeling and visualizing uncertainties of flood boundary delineation: algorithm for slope and DEM resolution dependencies of 1D hydraulic models2016In: Stochastic environmental research and risk assessment (Print), ISSN 1436-3240, E-ISSN 1436-3259, Vol. 30, no 6, p. 1677-1690Article in journal (Refereed)
    Abstract [en]

    As flood inundation risk maps have become a central piece of information for both urban and risk management planning, also a need to assess the accuracies and uncertainties of these maps has emerged. Most maps show the inundation boundaries as crisp lines on visually appealing maps, whereby many planners and decision makers, among others, automatically believe the boundaries are both accurate and reliable. However, as this study shows, probably all such maps, even those that are based on high-resolution digital elevation models (DEMs), have immanent uncertainties which can be directly related to both DEM resolution and the steepness of terrain slopes perpendicular to the river flow direction. Based on a number of degenerated DEMs, covering areas along the Eskilstuna River, Sweden, these uncertainties have been quantified into an empirically-derived disparity distance equation, yielding values of distance between true and modeled inundation boundary location. Using the inundation polygon, the DEM, a value representing the DEM resolution, and the desired level of confidence as inputs in a new-developed algorithm that utilizes the disparity distance equation, the slope and DEM dependent uncertainties can be directly visualized on a map. The implications of this strategy should benefit planning and help reduce high costs of floods where infrastructure, etc., have been placed in flood-prone areas without enough consideration of map uncertainties.

  • 22.
    Harrie, Lars
    et al.
    Lund University.
    Larsson, Karin
    Lund University.
    Tenenbaum, David
    Lund University.
    Horemuz, Milan
    Royal Institute of Technology (KTH).
    Ridefelt, Hanna
    National mapping and land registration authority, Gävle, Sweden.
    Lysell, Gunnar
    National mapping and land registration authority, Gävle, Sweden.
    Brandt, S. Anders
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Urban and regional planning/GIS-institute.
    Sahlin, Eva A.U.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Urban and regional planning/GIS-institute.
    Adelsköld, Göran
    Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Högström, Mats
    Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Lagerstedt, Jakob
    Swedish University of Agricultural Sciences, Uppsala, Sweden.
    Some strategic national initiatives for the Swedish education in the geodata field2014In: Connecting a Digital Europe through Location and Place: Selected best short papers and posters of the AGILE 2014 Conference, 3‐6 June 2014, Castellón, Spain / [ed] Joaquin Huerta, Sven Schade, Carlos Granell, AGILE Digital Editions , 2014Conference paper (Refereed)
    Abstract [en]

    This paper describes national cooperation in Sweden launched by its universities and authorities, aimed at improving geodata education. These initiatives have been focused upon providing common access to geodata, the production of teaching materials in Swedish and organizing annual meetings for teachers. We argue that this type of cooperation is vital to providing high quality education for a poorly recognized subject in a country with a relatively small population.

  • 23.
    Jiang, Bin
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS. University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Brandt, S. Anders
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS. University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    A Fractal Perspective on Scale in Geography2016In: ISPRS International Journal of Geo-information, ISSN 2220-9964, Vol. 5, no 6, article id 95Article in journal (Refereed)
    Abstract [en]

    Scale is a fundamental concept that has attracted persistent attention in geography literature over the past several decades. However, it creates enormous confusion and frustration, particularly in the context of geographic information science, because of scale-related issues such as image resolution and the modifiable areal unit problem (MAUP). This paper argues that the confusion and frustration arise from traditional Euclidean geometric thinking, in which locations, directions, and sizes are considered absolute, and it is now time to revise this conventional thinking. Hence, we review fractal geometry, together with its underlying way of thinking, and compare it to Euclidean geometry. Under the paradigm of Euclidean geometry, everything is measurable, no matter how big or small. However, most geographic features, due to their fractal nature, are essentially unmeasurable or their sizes depend on scale. For example, the length of a coastline, the area of a lake, and the slope of a topographic surface are all scale-dependent. Seen from the perspective of fractal geometry, many scale issues, such as the MAUP, are inevitable. They appear unsolvable, but can be dealt with. To effectively deal with scale-related issues, we present topological and scaling analyses illustrated by street-related concepts such as natural streets, street blocks, and natural cities. We further contend that one of the two spatial properties, spatial heterogeneity, is de facto the fractal nature of geographic features, and it should be considered the first effect among the two, because it is global and universal across all scales, which should receive more attention from practitioners of geography.

  • 24.
    Kordi, Maryam
    et al.
    National University of Ireland, National Centre for Geocomputation.
    Brandt, Anders
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Urban and regional planning/GIS-institute.
    Effects of increasing fuzziness on analytic hierarchy process for spatial multicriteria decision analysis2012In: Computers, Environment and Urban Systems, ISSN 0198-9715, E-ISSN 1873-7587, Vol. 36, no 1, p. 43-53Article in journal (Refereed)
    Abstract [en]

    Multicriteria decision analysis (MCDA) involves techniques which relatively recently have received great increase in interest for their capabilities of solving spatial decision problems. One of the most frequently used techniques of MCDA is Analytic Hierarchy Process (AHP). In the AHP, decision-makers make pairwise comparisons between different criteria to obtain values of their relative importance. The AHP initially only dealt with crisp numbers or exact values in the pairwise comparisons, but later it has been modified and adapted to also consider fuzzy values. It is necessary to empirically validate the ability of the fuzzified AHP for solving spatial problems. Further, the effects of different levels of fuzzification on the method have to be studied. In the context of a hypothetical GIS-based decision-making problem of locating a dam in Costa Rica using real-world data, this paper illustrates and compares the effects of increasing levels of uncertainty exemplified through different levels of fuzzification of the AHP. Practical comparison of the methods in this work, in accordance with the theoretical research, revealed that by increasing the level of uncertainty or fuzziness in the fuzzy AHP, differences between results of the conventional and fuzzy AHPs become more significant. These differences in the results of the methods may affect the final decisions in decision-making processes. This study concludes that the AHP is sensitive to the level of fuzzification and decision-makers should be aware of this sensitivity while using the fuzzy AHP. Furthermore, the methodology described may serve as a guideline on how to perform a sensitivity analysis in spatial MCDA. Depending on the character of criteria weights, i.e. the degree of fuzzification, and its impact on the results of a selected decision rule (e.g. AHP), the results from a fuzzy analysis may be used to produce sensitivity estimates for crisp AHP MCDA methods.

  • 25.
    Larsson, Anders
    et al.
    Göteborgs universitet.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Praktik - en praktisk lösning: (GIT 2006) representanter för akademin, lantmäteriet, kommunerna och konsultbranschen var rörande överens2006In: ULI aktuellt, ISSN 1654-6016, no 2, p. 3-4Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    På GIT 2006 arrangerade Kartografiska sällskapets nybildade utbildningssektion en paneldebatt kring arbetsmarknadens behov av GIT-kompetens. Representanter för akademin, lantmäteriet, kommunerna och konsultbranschen presenterade sin syn på förhållandet mellan utbud och efterfrågan på GIT-arbetsmarknaden. Därpå följde en paneldebatt, allt under sessionsledaren Anders Wellvings vakande öga.

  • 26.
    Lim, Nancy Joy
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS. University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Brandt, S. Anders
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS. University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Seipel, Stefan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Computer science. University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Computer science. Division of Visual Information and Interaction, Department of Information Technology, Uppsala University, Uppsala, Sweden.
    Visualisation and evaluation of flood uncertainties based on ensemble modelling2016In: International Journal of Geographical Information Science, ISSN 1365-8816, E-ISSN 1365-8824, Vol. 30, no 2, p. 240-262Article in journal (Refereed)
    Abstract [en]

    This study evaluates how users incorporate visualisation of flood uncertainty information in decision-making. An experiment was conducted where participants were given the task to decide building locations, taking into account homeowners’ preferences as well as dilemmas imposed by flood risks at the site. Two general types of visualisations for presenting uncertainties from ensemble modelling were evaluated: (1) uncertainty maps, which used aggregated ensemble results; and (2) performance bars showing all individual simulation outputs from the ensemble. Both were supplemented with either two-dimensional (2D) or three-dimensional (3D) contextual information, to give an overview of the area.The results showed that the type of uncertainty visualisation was highly influential on users’ decisions, whereas the representation of the contextual information (2D or 3D) was not. Visualisation with performance bars was more intuitive and effective for the task performed than the uncertainty map. It clearly affected users’ decisions in avoiding certain-to-be-flooded areas. Patterns to which the distances were decided from the homeowners’ preferred positions and the uncertainties were similar, when the 2D and 3D map models were used side by side with the uncertainty map. On the other hand, contextual information affected the time to solve the task. With the 3D map, it took the participants longer time to decide the locations, compared with the other combinations using the 2D model.Designing the visualisation so as to provide more detailed information made respondents avoid dangerous decisions. This has also led to less variation in their overall responses.

  • 27.
    Myagmartseren, Purevtseren
    et al.
    Department of Geography, School of Arts and Science, National University of Mongolia, Ulaanbaatar, Mongolia.
    Buyandelger, Myagmarsuren
    Land Administration Department of Capital City, Ulaanbaatar, Mongolia.
    Brandt, S. Anders
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Implications of a Spatial Multicriteria Decision Analysis for Urban Development in Ulaanbaatar, Mongolia2017In: Mathematical problems in engineering (Print), ISSN 1024-123X, E-ISSN 1563-5147, Vol. 2017, article id 2819795Article in journal (Refereed)
    Abstract [en]

    New technology has provided new tools for effective spatial planning. Through the example of locating suitable sites for urbandevelopment in Ulaanbaatar, this paper illustrates how multicriteria decision analysis and geographical information systems canbe used for more effective urban planning. Several constraint and factor criteria were identified, transformed into map layers,and weighted together using the analytic hierarchy process. Besides localization results, this study shows the effect of using poorelevation data and how a sensitivity analysis can be applied to yield further information, spot weighting weaknesses, and assess thequality of the criteria.

  • 28.
    Mårtensson, Stig-Göran
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    Brandt, S. Anders
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för samhällsbyggnad.
    University Exchange Programme and Master's Programme for ALAGaC Employees: Report No. MN 3-4 in the project Capacity Building in Human Resource Development in Order to Strengthen the Land Administration Sector of Mongolia, Mongolia 18 – 27 November 20052005Report (Other (popular science, discussion, etc.))
  • 29.
    Samuelsson, Karl
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering.
    Giusti, Matteo
    Stockholm Resilience Centre, Stockholm University, Sweden.
    Peterson, Garry D.
    Stockholm Resilience Centre, Stockholm University, Sweden.
    Legeby, Ann
    School of Architecture, KTH Royal Institute of Technology, Sweden.
    Brandt, S. Anders
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Barthel, Stephan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering. Stockholm Resilience Centre, Stockholm University, Sweden.
    Impact of environment on people’s everyday experiences in Stockholm2018In: Landscape and Urban Planning, ISSN 0169-2046, E-ISSN 1872-6062, Vol. 171, p. 7-17Article in journal (Refereed)
    Abstract [en]

    In order to construct urban environments that limit negative impacts for global sustainability while supporting human wellbeing, there is a need to better understand how features of the environment influence people’s everyday experiences. We present a novel method for studying this combining accessibility analysis and public participatory GIS (PPGIS). Seven environment features are defined and accessibility to them analysed across Stockholm municipality. We estimate the probabilities of positive and negative experiences in places based on these environment features, by using spatial regression to extrapolate from the results of an online PPGIS survey (1784 experiences of 1032 respondents). Six of the seven studied environment features have significant impact on experiential outcome, after accounting for spatial autocorrelation among the data. The results show that number of residents and proximity of nature environments and water, all common quality indicators in urban planning and research, have weak statistically significant effects on people’s experiences. However, areas dominated by large working populations or proximity to major roads have very low rates of positive experiences, while areas with high natural temperature regulating capacities have very high rates, showing that there are considerable qualitative differences within urban environments as well as nature environments. Current urban planning practices need to acknowledge these differences to limit impacts on the biosphere while promoting human wellbeing. We suggest that a good way to start addressing this is through transformation of negatively experienced urban areas through designs that integrate closeness to urbanity with possibilities to have nature experiences on a daily basis. 

  • 30.
    Schmidinger, Helen
    et al.
    Uppsala universitet.
    Brandt, S. Anders
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Land management, GIS.
    Närområdesexkursioner och inre motivation för bättre lärande: en studie i svenska gymnasieskolan2015In: Nordidactica: Journal of Humanities and Social Science Education, ISSN 2000-9879, Vol. 2015, no 1, p. 22-46Article in journal (Refereed)
    Abstract [en]

    This paper reports results from two locally based geography excursions at two secondary schools in Sweden, in order to study how the pupils’ own experience from the local neighborhood, intrinsic motivation, and flow interact during the learning process to see if these parameters affect their understanding and knowledge of the studied objects. The methods used were observations during the excursions, as well as interviews and questionnaires afterwards. The results show that the pupils believe that they learn more when studying objects in their natural environment, i.e. outside their classroom. Furthermore, the results show that intrinsic motivation may be difficult, but not impossible, to achieve, and also that there are good opportunities for attaining flow. If the pupils can see patterns and structures of the objects and processes studied, they will start understand and gain knowledge. This process will increase chances for intrinsic motivation, which will further increase understanding and knowledge, and attaining flow. Once achieved, a spiral process of continued flow, continued intrinsic motivation, and increasing knowledge may be maintained.

  • 31.
    Schmidinger, Helen
    et al.
    Uppsala universitet.
    Molin, Lena
    Uppsala universitet.
    Brandt, S. Anders
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Development, IT and Land Management, Urban and regional planning/GIS-institute.
    Excursions in school – past and present from Swedish and Anglo-Saxon perspectives2014In: European Journal of Geography, ISSN 1792-1341, Vol. 5, no 4, p. 87-101Article in journal (Refereed)
    Abstract [en]

    The purpose of this article is to present the results from a review of literature on geography excursions and field studies and to discuss their development over time, focusing on purpose, content, method, and execution. The scope was limited to Swedish and Anglo-Saxon literature, produced after the year 1900. The results show that excursions and field studies have since long been important methods in school teaching, not only in the subject geography. One of the purposes of using excursions and field studies in teaching is to facilitate the learning process of pupils and students. Several authors arguing that learning improved when the objects are studied in the real world. We can see that a continuous process of change has altered contents as well as conduction of the excursions. The previous instrumental orientation has moved toward more pupil-participating work methods. Today preparation is a keyword in most texts on excursions, and the perspectives have been broadened.

1 - 31 of 31
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