Urban-rural contrasts and extreme weather conditions in regional climate change projections across spatial and temporal scales

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Video in TIB AV-Portal: Urban-rural contrasts and extreme weather conditions in regional climate change projections across spatial and temporal scales

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Urban-rural contrasts and extreme weather conditions in regional climate change projections across spatial and temporal scales
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CC Attribution - NonCommercial - NoDerivatives 3.0 Germany:
You are free to use, copy, distribute and transmit the work or content in unchanged form for any legal and non-commercial purpose as long as the work is attributed to the author in the manner specified by the author or licensor.
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2021
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English
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Technische Informationsbibliothek (TIB)

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Abstract
Urban areas are prone to climate change impacts. A transition towards sustainable urban areas is relying heavily on useful, evidence-based climate information on urban scales. However, current climate data and information produced by urban or climate models are are either not scale compliant for cities, or do not cover essential parameters and/or urban-rural interactions under climate change conditions. Furthermore, although e.g. the urban heat island may be better understood, other phenomena, such as moisture change, are little researched. Our research shows the potential of regional climate models, within the EURO-CORDEX framework, to provide climate projections and information on urban scales for 11km and 3km grid size. The city of Berlin is taken as a case-study. The results on the 11km spatial scale show that the regional climate models simulate a distinct difference between Berlin and its surroundings for temperature and humidity related variables. There is an increase in urban dry island conditions in Berlin towards the end of the 21st century. To gain a more detailed understanding of climate change impacts, extreme weather conditions were investigated under a 2°C global warming and further downscaled to the 3km scale. This enables the exploration of differences of the meteorological processes between the 11km and 3km scales, and the implications for urban areas and its surroundings. The overall study shows the potential of regional climate models to provide climate change information on urban scales. How to cite: Langendijk, G. S., Rechid, D., and Jacob, D.: Urban-rural contrasts and extreme weather conditions in regional climate change projections across spatial and temporal scales, 12. Deutsche Klimatagung, online, 15–18 Mar 2021, DKT-12-13, https://doi.org/10.5194/dkt-12-13, 2020.
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