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Main Title: Micro-scale variability of air temperature within a local climate zone in Berlin, Germany, during summer
Author(s): Quanz, Justus A.
Ulrich, Susanne
Fenner, Daniel
Holtmann, Achim
Eimermacher, Jonas
Type: Article
Language Code: en
Abstract: The urban climate, especially the near-surface air temperature ( T ), is influenced to large amounts by urban surface properties on the local-scale. Landscape classification schemes, like the Local Climate Zone (LCZ) concept, classify neighbourhoods on this scale based on their surface properties, neglecting sub-scale heterogeneity in the urban structure and its potential effects on T . To quantify sub-scale T variability, a measurement campaign with eleven stationary T sensors was conducted within one LCZ (class 2B, compact midrise with scattered trees) in Berlin, Germany, during 22 days in summer 2016. Correlation analyses were performed between observed spatial T differences and micro-scale morphometric parameters around the measurement sites, such as sky view factor and building surface fraction. The results show mean night-time T differences of up to 1 K between the different sites. On a clear, calm and dry day, the daytime difference reached 3 K. At night-time, the variability can be best explained by the building surface fraction within a radius of 50 m. Further, a nocturnal cooling influence of a neighbouring green space could be observed. The observed micro-scale T variability was smaller than T differences to other LCZ classes, highlighting the applicability of the LCZ concept.
Issue Date: 2018
Date Available: 19-Jan-2018
DDC Class: 550 Geowissenschaften
551 Geologie, Hydrologie, Meteorologie
Subject(s): urban climate
local climate zone (LCZ)
air temperature
Sponsor/Funder: DFG, 325093850, Open Access Publizieren 2017 - 2018 / Technische Universität Berlin
Journal Title: Climate
Publisher: MDPI
Publisher Place: Basel
Volume: 6
Issue: 1
Article Number: 5
Publisher DOI: 10.3390/cli6010005
ISSN: 2225-1154
Appears in Collections:FG Klimatologie » Publications

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