کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
6576871 1422839 2018 12 صفحه PDF سفارش دهید دانلود رایگان
عنوان انگلیسی مقاله ISI
Remote sensing retrieval of urban land surface temperature in hot-humid region
ترجمه فارسی عنوان
بازیابی از راه دور دمای زمین سطح شهری در منطقه گرم و مرطوب
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کلمات کلیدی
دمای سطح زمین، آب و هوای شهری، سنجش از دور، الگوریتم تک-پنجره، مشاهدات میدانی،
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات علوم زمین و سیاره ای (عمومی)
چکیده انگلیسی
With the rapid urbanization and the global climate change, the urban climate problems become increasingly serious in the hot-humid region of China. This study established the satellite-based remote sensing retrieval methods for urban land surface temperature (LST) based on the mono-window algorithm and the estimation methods of ground emissivity and atmospheric transmittance. Through retrieving LST of Haizhu district in Guangzhou in a sunny summer day, it was found that the retrieval methods were able to distinguish the surface temperature variations for different underlying urban surfaces. By comparison with the field observations, it was found that the error of the retrieval methods was about 1.0 °C and the methods were applicable for LST retrieval in the cities in the hot-humid region. By applying the retrieval methods, it showed that the cooling effects of water and vegetation on surrounding urban lands were effective within distances of 250 m and 350 m, respectively. The water cooling effect correlated with its area and width positively, and the vegetation LST correlated with its canopy density negatively. The present study provides reliable techniques for observing and evaluating urban LST and useful guidance for planning and design of urban climate in the hot-humid region.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Urban Climate - Volume 24, June 2018, Pages 299-310
نویسندگان
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