Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.3390/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
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ISSN | 2072-4292 |
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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