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  • 1.
    Eliasson, Ingegärd
    et al.
    Urban Climate Group, Physical Geography, Department of Earth Sciences, Göteborg, Sweden.
    Knez, Igor
    University of Gävle, Department of Education and Psychology, Ämnesavdelningen för psykologi.
    Westerberg, Ulla
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    Thorsson, Sofia
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet. Urban Climate Group, Physical Geography, Department of Earth Sciences, Göteborg, Sweden.
    Lindberg, Fredrik
    Urban Climate Group, Physical Geography, Department of Earth Sciences, Göteborg, Sweden.
    Climate and behaviour in a Nordic city2007In: Landscape and Urban Planning, ISSN 0169-2046, E-ISSN 1872-6062, Vol. 82, no 1-2, p. 72-84Article in journal (Refereed)
    Abstract [en]

    Four urban public spaces, representing various designs and microclimates, were investigated in Gothenburg, Sweden, in order to estimate how weather and microclimate affect people in urban outdoor environments. The research strategy was both multidisciplinary and interdisciplinary and included scientists from three disciplines: architecture, climatology and psychology. The project is based on common case studies carried out during four seasons, including measurements of meteorological variables, interviews and observations of human activity at each place. Multiple regression analysis of meteorological and behavioural data showed that air temperature, wind speed and clearness index (cloud cover) have a significant influence on people's assessments of the weather, place perceptions and place-related attendance. The results support the arguments in favour of employing climate sensitive planning in future urban design and planning projects, as the physical component of a place can be designed to influence the site-specific microclimate and consequently people's place-related attendance, perceptions and emotions.

  • 2. Glaumann, Mauritz
    et al.
    Westerberg, Ulla
    Närklimat kring stora hus2018In: Hus mot himlen – hållbar hybris? / [ed] Olshammar, G., Olsson, K. & Siesjö, B., Malmö: Bokförlaget Arena , 2018, p. 200-221Chapter in book (Other (popular science, discussion, etc.))
  • 3. Lindberg, F
    et al.
    Sandberg, Mats
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Westerberg, Ulla
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    Claesson, Leif
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Windiness in an Urban Space described with different methods2004In: Cost Action C14-Impact of wind and Storm on City Life and Built Environment, 2004Conference paper (Other academic)
  • 4.
    Linden, Elisabet
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Sandberg, Mats
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Westerberg, Ulla
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    Wind field in an urban space explored by different methods2006In: The 6th International Conference on Urban Climate (ICUC6), 2006Conference paper (Other academic)
  • 5.
    Sandberg, Mats
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Linden, Elisabet
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Westerberg, Ulla
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    Claesson, Leif
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Elvsén, Per-Åke
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Air flow pattern and pressure distribution within a street network in an urban area with a high building area density2006In: The 6th International Conference on Urban Climate: Preprints, 2006, p. 188-191Conference paper (Other academic)
    Abstract [en]

    We report on the effect of the overall shape of a city on the flow within the street network. We start with a solid round block, aspect ratio, diameter/ height = 6. The block is subdivided into smaller blocks and step by step an increasing number of streets are introduced. In the wind tunnel visualization with helium filled soap bubbled was carried out for obtaining qualitative information about the flow pattern. The pressure distribution on the ground within the street network was recorded in 400 points. CFD predictions provided the overall flow balance; flow entering through the street portals, leaving through the exit street portals and the updraft.

  • 6.
    Skote, M
    et al.
    University of Gävle, Department of Technology and Built Environment.
    Sandberg, Mats
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Westerberg, Ulla
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    Claesson, Leif
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Johansson, Arne
    Numerical and experimental studies of wind environment in an urban morphology2005In: Atmospheric Environment, ISSN 1352-2310, E-ISSN 1873-2844, Vol. 39, no 33, p. 6147-6158Article in journal (Refereed)
    Abstract [en]

    The purpose of the paper is to examine the relation between urban morphology (three-dimensional structure) and windiness. We regard a city as a porous obstacle, which is open at the top. We consider the interaction between the atmospheric boundary layer and a city to be both a function of the overall shape (silhouette or skyline) and the internal resistance to the flow caused by the friction when the wind flows over the urban surfaces. We regard the street pattern as an interconnected flow network with the crossings as nodes. Flow, along the streets is generated by pressure differences.

    We here use a highly idealized city model consisting of a circular block divided into two or four equally large sectors. Two types of cases are studied, the first with only one street through the city model with different angles between the street and the oncoming wind. The second case also contains a perpendicularly crossing street (through the center). Both wind tunnel experiments and numerical flow computations (computational fluid dynamics, CFD) are used and compared. The general agreement between the two is good and the CFD method offers new possibilities for quantifying the urban wind environment. (c) 2005 Elsevier Ltd. All rights reserved.

  • 7.
    Wallhagen, Marita
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering. KTH, MIljöstrategisk Analys - fms.
    Glaumann, Mauritz
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering. KTH Royal Institute of Technology, School of Architecture and the Built Environment,, Division of Environmental Strategies Research, Department of Urban Studies, Environmental Strategies Research - fms.
    Eriksson, Ola
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering.
    Westerberg, Ulla
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Building engineering.
    Framework for Detailed Comparison of Building Environmental Assessment Tools2013In: Buildings, ISSN 2075-5309, E-ISSN 2075-5309, Vol. 3, no 1, p. 39-60Article in journal (Refereed)
    Abstract [en]

    Understanding how Building Environmental Assessments Tools (BEATs) measure and define “environmental” building is of great interest to many stakeholders, but it is difficult to understand how BEATs relate to each other, as well as to make detailed and systematic tool comparisons. A framework for comparing BEATs is presented in the following which facilitates an understanding and comparison of similarities and differences in terms of structure, content, aggregation, and scope. The framework was tested by comparing three distinctly different assessment tools; LEED-NC v3, Code for Sustainable Homes (CSH), and EcoEffect. Illustrations of the hierarchical structure of the tools gave a clear overview of their structural differences. When using the framework, the analysis showed that all three tools treat issues related to the main assessment categories: Energy and Pollution, Indoor Environment, and Materials and Waste. However, the environmental issues addressed, and the parameters defining the object of study, differ and, subsequently, so do rating, results, categories, issues, input data, aggregation methodology, and weighting. This means that BEATs measure “environmental” building differently and push “environmental” design in different directions. Therefore, tool comparisons are important, and the framework can be used to make these comparisons in a more detailed and systematic way.

  • 8.
    Wallhagen, Marita
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    Glaumann, Mauritz
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    Westerberg, Ulla
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    Les outils de mesure de la durabilité des bâtiments: comparaison transnationale2008In: Annales de la Recherche Urbaine, ISSN 0180-930X, no 105, p. 94-103Article in journal (Refereed)
    Abstract [fr]

    Les outils d'évaluation environnementale des bâtiments se développent rapidement dans de nombreux pays. Tous prétendent mesurer la qualité environnementale ou la durabilité des bâtiments, et donnent un maximum de points à ce qui est durable d'une manière ou d'une autre. Mais pour l'instant il n'y a pas de consensus sur le sens des mots « vert » ou « durables » en termes de critères et d'indicateurs. Que cherchent à mesurer les indicateurs existant? Trois outils d'évaluation ont été retenus, l'américain LEED-NC, le britannique Code for Sustainable Homes (CSH) et le suédois EcoEffect. Ils ont trois champs d'évaluation principale en commun : l'énergie, l'environnement intérieur, les matériaux et les déchets. En revanche les contenus sont différents. Ces outils ont été comparés quant à leur but, leur contenu, et leur manière d'agréger les items. Ils ont été testés sur un immeuble neuf de plusieurs étages. Les résultats de leur application à cet immeuble divergent, ce qui pose la question de la définition d'outils d'évaluation réellement pertinents.

  • 9.
    Wallhagen, Marita
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Glaumann, Mauritz
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Westerberg, Ulla
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Understanding differences between the environmental assessment tools: LEED, Code for Sustainable homes and EcoEffectManuscript (preprint) (Other academic)
  • 10.
    Wallhagen, Marita
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    Glaumann, Mauritz
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    Westerberg, Ulla
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    What is a "green" building according to different assessment tools?2008In: Proceedings of the 2008 World Sustainable Building Conference. Vol. 2, 2008, p. 2618-2625Conference paper (Refereed)
    Abstract [en]

    Environmental assessment tools for buildings are rapidly developing in many countries. All of them claim that they measure “greenness” or “sustainability” of buildings, i.e. if maximum scores are awarded a building is sustainable in some respect. But so far there is no consensus on the interpretation of “green” or “sustainable” in terms of criteria and indicators.

    This article explores if different tools point in different directions regarding “green” building design. It also investigates characteristics of assessment tools and consequences of different approaches.

    Three distinctly different assessment tools, LEED-NC, Code for Sustainable Homes (CSH) and EcoEffect have been selected. They have three core assessment areas in common, namely Energy, Indoor Environment and Materials & Waste. The content however is different.

    The tools have been compared with respect to aim, content and aggregation. They have been tested on a new multi storey residential building. Assessments within the core areas were compared. Measures to improve the overall judgement were explored. The diverging result raises the question how to design environmentally relevant and practically useful assessment tools for buildings.

  • 11.
    Westerberg, Ulla
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    Linden, Elisabet
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Nilsson, Håkan
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    Perceived windiness in urban spaces.2006In: The 6th International Conference on Urban Climate - Preprints, 2006, p. 209-212Conference paper (Other academic)
    Abstract [en]

    The paper discusses the perception of windiness in the urban environment and especially its visual aspects. Various urban spaces in two cities, both with a reputation of being windy, have been chosen for field studies. Perceived windiness of the spaces has been investigated through questionnaire surveys and on-site interviews simultaneous to climate measurements. Result: Windy has a negative connotation that interacts with other environmental aspects such as beauty and comfort. Also naturalness and mental images of what constitutes sheltered and windy places seem to influence the survey as well as the on-site assessments of windiness.

  • 12.
    Westerberg, Ulla
    et al.
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för byggnadskvalitet.
    Sandberg, Mats
    University of Gävle, Department of Technology and Built Environment, Ämnesavdelningen för inomhusmiljö.
    A typology for urban form with respect to wind climate2006In: International conference for Nordic Network for Urban Morphology, Stockholm 2006 Book of Abstracts, 2006Conference paper (Other academic)
1 - 12 of 12
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