NDLI: Analysis of “furnace cities" in China using MODIS/LST product (MOD11A2)

Content Provider	IEEE Xplore Digital Library
Author	Yuanyuan Wang Guicai Li
Copyright Year	2014
Description	Author affiliation: Nat. Satellite Meteorol. Center, China Meteorol. Adm., Beijing, China (Yuanyuan Wang; Guicai Li)
Abstract	In China, hot big cities are called “furnace” cities. With the development of urbanization and global warming, more and more big cities have become hot like a “furnace”. To compare the hot degree among cities, long time series of meteorological data can be used. However, due to a high patial heterogeneity of urban air temperature, point-based meteorological observation is unable to fully represent the whole city. In this paper, a new method based on satellite LST (Land Surface Temperature) product is proposed. First, MODIS/LST product (MOD11A2) and meteorological data during 2000-2010 for the 31 big cities are collected, and tree ensemble algorithm is used to build air temperature estimation models for each city. Then the model is applied to get spatially continuous air temperature and the urban regional mean temperature is calculated. Through analyzing the frequency of extreme hot days (regional mean temperature is greater than 35°C), we find out that the top 4 hottest cities are Changsha, Chongqing, Fuzhou, and Hangzhou. The list is slightly different from the one based on meteorological data. LST product quality, model accuracy, the length of data series and other factors have an impact on the result. The satellite-based method can represent the whole big city well and the spatial detail of hot degree within a city can also be characterized. More comprehensive criteria are needed to improve the new method.
Sponsorship	IEEE Geosci. Remote Sens. Soc.
Starting Page	1817
Ending Page	1820
File Size	128781
Page Count	4
File Format	PDF
ISBN	9781479957750
DOI	10.1109/IGARSS.2014.6946807
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-07-13
Publisher Place	Canada
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Cities and towns Land surface temperature Estimation Furnaces Temperature distribution Accuracy MODIS Furnace city land Surface Temperature MOD11A2
Content Type	Text
Resource Type	Article

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Collection-5 modis land surface temperature products users’ guide. Icess (2007).

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Validation of the land-surface temperature products retrieved from terra moderate resolution imaging spectroradiometer data (2002).

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