Mapping high-resolution urban morphology for urban heat island studies and weather forecasting at intra-urban scale

Research output: Contribution to conferenceAbstract

Abstract

As the urban climate and weather depend strongly on the details of the local environment, an accurate description of local environment is essential. For urban areas this includes morphological data on the built-up environment like building height, building density, and frontal area. However, also the amount of vegetation in the urban canyon is critical. This study combines data from a variety of sources to create a high spatial resolution (~100m) collection of urban environment properties, representing the whole of the Netherlands in maps. The data sources include the Dutch cadastre and the Dutch statistical office (vector data) and height- and terrain maps, and aerial photographs (raster data). Combining this model with urban temperature time series, an urban heat island (UHI) climatology for the Netherlands on a neighbourhood scale is derived. The climatological data is made available on an interactive website, assisting urban planners with assessing and mitigating adverse effects of extreme warm weather events. For instance, 15 percent of the elderly population (age 65 and above) is exposed to a large UHI (95th percentile surpasses 4.5K), potentially leading to health issues. The urban data collection can also be used to perform high-resolution weather forecasts with numerical weather prediction models, for example WRF.

Conference

Conference9th International Conference on Urban Climate/ 12th Symposium on the Urban Environment, Int. Association of Urban Climate, American Meteorological Soc., Toulouse, France
Period20/07/1524/07/15

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    Attema, J., Ronda, R. J., Steeneveld, G. J., Heusinkveld, B. G., & Holtslag, A. A. M. (2015). Mapping high-resolution urban morphology for urban heat island studies and weather forecasting at intra-urban scale. Abstract from 9th International Conference on Urban Climate/ 12th Symposium on the Urban Environment, Int. Association of Urban Climate, American Meteorological Soc., Toulouse, France, .