Arid
DOI10.3390/rs8050410
Long Term Validation of Land Surface Temperature Retrieved from MSG/SEVIRI with Continuous in-Situ Measurements in Africa
Goettsche, Frank-M.1; Olesen, Folke-S.1; Trigo, Isabel F.2; Bork-Unkelbach, Annika1; Martin, Maria A.1
通讯作者Goettsche, Frank-M.
来源期刊REMOTE SENSING
ISSN2072-4292
出版年2016
卷号8期号:5
英文摘要

Since 2005, the Land Surface Analysis Satellite Application Facility (LSA SAF) operationally retrieves Land Surface Temperature (LST) for the Spinning Enhanced Visible and Infrared Imager (SEVIRI) on board Meteosat Second Generation (MSG). The high temporal resolution of the Meteosat satellites and their long term availability since 1977 make their data highly valuable for climate studies. In order to ensure that the LSA SAF LST product continuously meets its target accuracy of 2 degrees C, it is validated with in-situ measurements from four dedicated LST validation stations. Three stations are located in highly homogenous areas in Africa (semiarid bush, desert, and Kalahari semi-desert) and typically provide thousands of monthly match-ups with LSA SAF LST, which are used to perform seasonally resolved validations. An uncertainty analysis performed for desert station Gobabeb yielded an estimate of total in-situ LST uncertainty of 0.8 +/- 0.12 degrees C. Ignoring rainy seasons, the results for the period 2009-2014 show that LSA SAF LST consistently meets its target accuracy: the highest mean root-mean-square error (RMSE) for LSA SAF LST over the African stations was 1.6 degrees C while mean absolute bias was 0.1 degrees C. Nighttime and daytime biases were up to 0.7 degrees C but had opposite signs: when evaluated together, these partially compensated each other.


英文关键词land surface temperature in-situ measurements long-term validation Meteosat Second Generation spatial representativeness uncertainty analysis
类型Article
语种英语
国家Germany ; Portugal
收录类别SCI-E
WOS记录号WOS:000378406400054
WOS关键词FILTER PHYSICAL RETRIEVAL ; EMISSIVITY SEPARATION ; ASTER ; ALGORITHM ; PRODUCTS ; MODIS ; PARAMETERS ; ACCURACY ; SENEGAL ; SOILS
WOS类目Remote Sensing
WOS研究方向Remote Sensing
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/195950
作者单位1.KIT, Hermann von Helmholtz Pl 1, D-76344 Eggenstein Leopoldshafen, Germany;
2.IPMA, Rua C Ao Aeroporto, P-1749077 Lisbon, Portugal
推荐引用方式
GB/T 7714
Goettsche, Frank-M.,Olesen, Folke-S.,Trigo, Isabel F.,et al. Long Term Validation of Land Surface Temperature Retrieved from MSG/SEVIRI with Continuous in-Situ Measurements in Africa[J],2016,8(5).
APA Goettsche, Frank-M.,Olesen, Folke-S.,Trigo, Isabel F.,Bork-Unkelbach, Annika,&Martin, Maria A..(2016).Long Term Validation of Land Surface Temperature Retrieved from MSG/SEVIRI with Continuous in-Situ Measurements in Africa.REMOTE SENSING,8(5).
MLA Goettsche, Frank-M.,et al."Long Term Validation of Land Surface Temperature Retrieved from MSG/SEVIRI with Continuous in-Situ Measurements in Africa".REMOTE SENSING 8.5(2016).
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