Název: Statistical analyses of Land Surface Temperature in Local Climate Zones: Case study of Brno and Prague (Czech Republic)
Autoři: Geletič, Jan ; Dobrovolný, Petr ; Lehnert, M.
Typ dokumentu: Příspěvky z konference
Konference/Akce: Joint Urban Remote Sensing Event (JURSE), Dubai (AE), 20170306
Rok: 2017
Jazyk: eng
Edice: Joint Urban Remote Sensing Event
Abstrakt: The classification of "local climate zones" (LCZs) emerged in urban climatology to standardize description of urban climate research sites. One of the goals of classification was to get beyond urban-rural dichotomy which enabled to study urban air temperature field in more detail. Based on empirical and modelling work LCZ have proven effective in examining intra-urban air temperature differences, however a robust examination of intra-urban land surface temperatures using the LCZ framework remains elusive. In this study a GIS-based method is used for LCZ delimitation in Prague and Brno (Czech Republic), while land surface temperatures (LSTs) derived from LANDSAT and ASTER satellite data are employed for exploring the extent to which LCZ classes discriminate with respect to LSTs. Results indicate that LCZs demonstrate the features typical of LST variability, and thus typical surface temperatures differ significantly among most LCZs. ANOVA and subsequent multiple comparison tests demonstrated that significant temperature differences between the various LCZs prevail in both cities (89.3% and 91.6% significant LST differences for Brno and Prague respectively). In general, LCZ 8 (large low-rise buildings), LCZ 10 (heavy industry) and LCZ D (low plants) are well-distinguishable, while LCZ 2 (compact midrise), LCZ 4 (open high-rise), and LCZ 9 (sparsely built-up) are less distinguishable in terms of their LST. In most of the scenes LCZ 10 (heavy industry), LCZ 2 (mid-rise buildings) and LCZ 3 (low-rise building) are the warmest and LCZ G (water bodies) and LCZ A (dense forest) are the coolest zones in term of their LST. Further studies are needed to account for observational errors (such as seasons differences or thermal anisotropy) on LCZ LST patterns.
Klíčová slova: Analysis of variance; aster; Land Surface Temperature; landsat; Local Climate Zones
Číslo projektu: LO1415 (CEP), EHP-CZ02-OV-1-036-2015
Poskytovatel projektu: GA MŠk, EHP,MF ČR
Zdrojový dokument: JOINT URBAN REMOTE SENSING EVENT (JURSE), ISBN 978-1-5090-5808-2, ISSN 2334-0932

Instituce: Ústav výzkumu globální změny AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v příslušném ústavu Akademie věd ČR.
Původní záznam: http://hdl.handle.net/11104/0280180

Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-373375


Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav výzkumu globální změny
Konferenční materiály > Příspěvky z konference