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Analysis of the impact of different degrees of urbanization and urban green infrastructure on the water and energy balance using a spatially high resolved raster-based model

Hack, Jochen and Wiegels, Rebecca and Chapa, Fernando (2020):
Analysis of the impact of different degrees of urbanization and urban green infrastructure on the water and energy balance using a spatially high resolved raster-based model.
In: Proceedings of the First International Conference on Urban Water Interfaces (UWI),
Berlin, Germany, Technical University of Berlin, 22 – 24 September 2020, DOI: 10.24407/KXP:1744454906,
[Conference or Workshop Item]

Abstract

A principal objective of Green Infrastructure is to mitigate negative impacts of urbanization on the hydrological and energetic balance. This work examines the suitability of the conceptual model Surface Urban Energy and Water Balance Scheme (SUEWS) to quantify the mitigation effect of Green Infrastructure. The evapotranspiration as linking component of the hydrological and the energy balance was modelled on the basis of essential meteorological data and specific site characteristics of a study site in Costa Rica. A high resolution land cover classification was created and used to categorized different degrees of urbanization to evaluate the results in their spatial variety. A sensitivity analysis was executed to approximate the impact of different model variables. Finally, two scenarios were created within SUEWS, one representing the current state of the study site, the other representing the study site with Green Infrastructure elements implemented. The extent of the impact was evaluated, by analysing the deviations of the generated results spatially and statistically. The results show the suitability of SUEWS to model land cover changes and also its limitations to demonstrate the hydrological effects of Green Infrastructure elements.

Item Type: Conference or Workshop Item
Erschienen: 2020
Creators: Hack, Jochen and Wiegels, Rebecca and Chapa, Fernando
Title: Analysis of the impact of different degrees of urbanization and urban green infrastructure on the water and energy balance using a spatially high resolved raster-based model
Language: English
Abstract:

A principal objective of Green Infrastructure is to mitigate negative impacts of urbanization on the hydrological and energetic balance. This work examines the suitability of the conceptual model Surface Urban Energy and Water Balance Scheme (SUEWS) to quantify the mitigation effect of Green Infrastructure. The evapotranspiration as linking component of the hydrological and the energy balance was modelled on the basis of essential meteorological data and specific site characteristics of a study site in Costa Rica. A high resolution land cover classification was created and used to categorized different degrees of urbanization to evaluate the results in their spatial variety. A sensitivity analysis was executed to approximate the impact of different model variables. Finally, two scenarios were created within SUEWS, one representing the current state of the study site, the other representing the study site with Green Infrastructure elements implemented. The extent of the impact was evaluated, by analysing the deviations of the generated results spatially and statistically. The results show the suitability of SUEWS to model land cover changes and also its limitations to demonstrate the hydrological effects of Green Infrastructure elements.

Title of Book: Proceedings of the First International Conference on Urban Water Interfaces (UWI)
Place of Publication: Berlin, Germany
Divisions: 11 Department of Materials and Earth Sciences
11 Department of Materials and Earth Sciences > Earth Science
11 Department of Materials and Earth Sciences > Earth Science > Ecological Engineering
Event Location: Technical University of Berlin
Event Dates: 22 – 24 September 2020
Date Deposited: 21 Dec 2020 18:06
DOI: 10.24407/KXP:1744454906
Official URL: https://www.tib.eu/en/search/id/TIBKAT:1744454906/Analysis-o...
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