基于环境减灾小卫星(HJ-1B)的地表温度单窗反演研究 ; Research on Using a Mono-Window Algorithm for Land Surface Temperature Retrieval from Chinese Satellite for Environment and Natural Disaster Monitoring(HJ-1B) Data
In: 万方 ; SCI ; http://d.g.wanfangdata.com.cn/Periodical_gpxygpfx201106028.aspx, 2011
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Zugriff:
地表温度是地球环境中的一个关键参数,可探测地表温度的热红外波段在光谱谱段中占有重要位置.针对近年来发射的HJ-1B星波段特点,本研究在基于影像的COST模型大气校正基础上,以宁夏为研究区,采用无需大气水汽含量参数的单窗算法反演地表温度,并采用同步的MODIS温度产品对比验证,结果表明该法具有<1 K的较高精度.同时,对该法的关键参数地表比辐射率进行了敏感性分析,发现该法对比辐射率不大敏感,其在中等程度的变化时,其误差<0.5 K.从而说明该法反演地表温度的可靠性,也表明了环境减灾星具有较高精度的地表温度探测能力. ; 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. ; 国家自然科学基金; 国家科技支撑项目 ; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000291227800027&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E) ; 中文核心期刊要目总览(PKU) ; 中国科技核心期刊(ISTIC) ; 中国科学引文数据库(CSCD) ; 8 ; 6 ; 1552-1556 ; 31
| Titel: |
基于环境减灾小卫星(HJ-1B)的地表温度单窗反演研究 ; Research on Using a Mono-Window Algorithm for Land Surface Temperature Retrieval from Chinese Satellite for Environment and Natural Disaster Monitoring(HJ-1B) Data
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| Autor/in / Beteiligte Person: | 赵少华 ; 秦其明 ; 张峰 ; 王桥 ; 姚云军 ; 游林 ; 蒋洪波 ; 崔荣菠 ; 姚延娟 ; 环境保护部卫星环境应用中心,北京,100094 ; 北京大学遥感与地理信息系统研究所,北京,100871 ; 北京师范大学全球变化与地球系统科学研究院,北京,100875 |
| Link: | |
| Zeitschrift: | 万方 ; SCI ; http://d.g.wanfangdata.com.cn/Periodical_gpxygpfx201106028.aspx, 2011 |
| Veröffentlichung: | 光谱学与光谱分析, 2011 |
| Medientyp: | academicJournal |
| ISSN: | 1000-0593 (print) |
| DOI: | 10.3964/j.issn.1000-0593(2011)06-1552-05 |
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