کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4464931 1621842 2012 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Comparison of surface heat balance in three cities in Taiwan using Terra ASTER and Formosat-2 RSI data
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات کامپیوتر در علوم زمین
پیش نمایش صفحه اول مقاله
Comparison of surface heat balance in three cities in Taiwan using Terra ASTER and Formosat-2 RSI data
چکیده انگلیسی

In order to investigate the influences of the city scale, usage, topography, and climate on surface heat balance, the authors compared the surface heat balance for three urban areas in Taiwan, namely, Kaohsiung City, Taichung City, and Tainan City, estimated using ASTER and Formosat-2 data. The net radiation was in a similar range in all three study areas because the cities are in close proximity to each other. Tainan City released 60–70% of the sensible heat flux of the other cities because of its smaller size. Taichung City, which is located in a basin, exhibited the largest sensible heat flux, due to the radiation cooling during the night before the observation. Anthropogenic heat discharge clearly decreased the storage heat flux in certain industrial areas in Kaohsiung City and Taichung City, while the small scale urban functions moderated the variation of storage heat flux in Tainan City. These results imply that the terrain around a given city as well as the scale of urban activity significantly affect the heat balance in the cities.


► We compared heat balance for three cities in Taiwan using ASTER and Formosat-2 data.
► The surface heat balances correlate with the city scale, usage, and topography.
► Larger cities release more sensible heat flux.
► Anthropogenic heat discharge counteracts heat storage in large industrial areas.
► A city in a basin releases more sensible heat than a city on a plain in the morning.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Applied Earth Observation and Geoinformation - Volume 18, August 2012, Pages 263–273
نویسندگان
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