Research on Using a Mono-Window Algorithm for Land Surface Temperature Retrieval from Chinese Satellite for Environment and Natural Disaster Monitoring(HJ-1B) Data
ZHAO Shao-hua1,2, QIN Qi-ming2, ZHANG Feng1, WANG Qiao1, YAO Yun-jun3, YOU Lin2，JIANG Hong-bo2， CUI Rong-bo2, YAO Yian-juan1
1. Environmental Satellite Center, Ministry of Environmental Protection, Beijing 100094, China 2. Institute of Remote Sensing and GIS, Peking University, Beijing 100871, China 3. College of Global Change and Earth System Science, Beijing Normal University，Beijing 100875, China
Abstract：Land surface temperature(LST) is a key parameter in earth environment, the thermal infrared band that can detect LST plays an important role in spectroscopy. Aiming to the latest optical and thermal bands of HJ-1B satellite, the LST retrieval over Ningxia plain was implemented using a mono-window algorithm without atmospheric water vapor content input, based on the COST model for atmospheric correction. Considering the difficulty of obtaining simultaneous ground measured data, the MODIS LST product was adopted as a standard to test the approach. The comparison and validation indicate that this method has good reliability with accuracy of less than 1 K. In addition, the sensitivity analysis is performed for land surface emissivity, and the result shows that this variable was not sensitive to LST, because the LST error is less than 0. 5 K when it varies at medium level. This study proves that the satellite data has higher availability for detecting LST.
赵少华1,2，秦其明2，张 峰1，王 桥1，姚云军3，游 林2，蒋洪波2，崔荣菠2，姚延娟1 . 基于环境减灾小卫星(HJ-1B)的地表温度单窗反演研究[J]. 光谱学与光谱分析, 2011, 31(06): 1552-1556.
ZHAO Shao-hua1,2, QIN Qi-ming2, ZHANG Feng1, WANG Qiao1, YAO Yun-jun3, YOU Lin2，JIANG Hong-bo2， CUI Rong-bo2, YAO Yian-juan1 . Research on Using a Mono-Window Algorithm for Land Surface Temperature Retrieval from Chinese Satellite for Environment and Natural Disaster Monitoring(HJ-1B) Data. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2011, 31(06): 1552-1556.
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