P. O’neill, S. Chan, R. Bindlish, T. Jackson, A. Colliander, R. Dunbar, Fan Chen, J. Piepmeier, S. Yueh, D. Entekhabi, M. Cosh, T. Caldwell, J. Walker, Xiaoling Wu, A. Berg, T. Rowlandson, A. Pacheco, H. Mcnairn, M. Thibeault, J. Martínez-Fernández, Á. González-Zamora, E. López-Baeza, F. Uldall, M. Seyfried, D. Bosch, P. Starks, C. H. Collins, J. Prueger, Z. Su, R. Velde, J. Asanuma, M. Palecki, E. Small, M. Zreda, J. Calvet, W. Crow, Y. Kerr
{"title":"SMAP被动土壤水分标准产品第4版的评估","authors":"P. O’neill, S. Chan, R. Bindlish, T. Jackson, A. Colliander, R. Dunbar, Fan Chen, J. Piepmeier, S. Yueh, D. Entekhabi, M. Cosh, T. Caldwell, J. Walker, Xiaoling Wu, A. Berg, T. Rowlandson, A. Pacheco, H. Mcnairn, M. Thibeault, J. Martínez-Fernández, Á. González-Zamora, E. López-Baeza, F. Uldall, M. Seyfried, D. Bosch, P. Starks, C. H. Collins, J. Prueger, Z. Su, R. Velde, J. Asanuma, M. Palecki, E. Small, M. Zreda, J. Calvet, W. Crow, Y. Kerr","doi":"10.1109/IGARSS.2017.8127862","DOIUrl":null,"url":null,"abstract":"NASA's Soil Moisture Active Passive (SMAP) mission launched on January 31, 2015 into a sun-synchronous 6 am/6 pm orbit with an objective to produce global mapping of high-resolution soil moisture and freeze-thaw state every 2–3 days. The SMAP radiometer began acquiring routine science data on March 31, 2015 and continues to operate nominally. SMAP's radiometer-derived standard soil moisture product (L2SMP) provides soil moisture estimates posted on a 36-km fixed Earth grid using brightness temperature observations and ancillary data. A beta quality version of L2SMP was released to the public in October, 2015, Version 3 validated L2SMP soil moisture data were released in May, 2016, and Version 4 L2SMP data were released in December, 2016. Version 4 data are processed using the same soil moisture retrieval algorithms as previous versions, but now include retrieved soil moisture from both the 6 am descending orbits and the 6 pm ascending orbits. Validation of 19 months of the standard L2SMP product was done for both AM and PM retrievals using in situ measurements from global core cal/val sites. Accuracy of the soil moisture retrievals averaged over the core sites showed that SMAP accuracy requirements are being met.","PeriodicalId":6466,"journal":{"name":"2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS)","volume":"6 1","pages":"3941-3944"},"PeriodicalIF":0.0000,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":"{\"title\":\"Assessment of version 4 of the SMAP passive soil moisture standard product\",\"authors\":\"P. O’neill, S. Chan, R. Bindlish, T. Jackson, A. Colliander, R. Dunbar, Fan Chen, J. Piepmeier, S. Yueh, D. Entekhabi, M. Cosh, T. Caldwell, J. Walker, Xiaoling Wu, A. Berg, T. Rowlandson, A. Pacheco, H. Mcnairn, M. Thibeault, J. Martínez-Fernández, Á. González-Zamora, E. López-Baeza, F. Uldall, M. Seyfried, D. Bosch, P. Starks, C. H. Collins, J. Prueger, Z. Su, R. Velde, J. Asanuma, M. Palecki, E. Small, M. Zreda, J. Calvet, W. Crow, Y. Kerr\",\"doi\":\"10.1109/IGARSS.2017.8127862\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"NASA's Soil Moisture Active Passive (SMAP) mission launched on January 31, 2015 into a sun-synchronous 6 am/6 pm orbit with an objective to produce global mapping of high-resolution soil moisture and freeze-thaw state every 2–3 days. The SMAP radiometer began acquiring routine science data on March 31, 2015 and continues to operate nominally. SMAP's radiometer-derived standard soil moisture product (L2SMP) provides soil moisture estimates posted on a 36-km fixed Earth grid using brightness temperature observations and ancillary data. A beta quality version of L2SMP was released to the public in October, 2015, Version 3 validated L2SMP soil moisture data were released in May, 2016, and Version 4 L2SMP data were released in December, 2016. Version 4 data are processed using the same soil moisture retrieval algorithms as previous versions, but now include retrieved soil moisture from both the 6 am descending orbits and the 6 pm ascending orbits. Validation of 19 months of the standard L2SMP product was done for both AM and PM retrievals using in situ measurements from global core cal/val sites. 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Assessment of version 4 of the SMAP passive soil moisture standard product
NASA's Soil Moisture Active Passive (SMAP) mission launched on January 31, 2015 into a sun-synchronous 6 am/6 pm orbit with an objective to produce global mapping of high-resolution soil moisture and freeze-thaw state every 2–3 days. The SMAP radiometer began acquiring routine science data on March 31, 2015 and continues to operate nominally. SMAP's radiometer-derived standard soil moisture product (L2SMP) provides soil moisture estimates posted on a 36-km fixed Earth grid using brightness temperature observations and ancillary data. A beta quality version of L2SMP was released to the public in October, 2015, Version 3 validated L2SMP soil moisture data were released in May, 2016, and Version 4 L2SMP data were released in December, 2016. Version 4 data are processed using the same soil moisture retrieval algorithms as previous versions, but now include retrieved soil moisture from both the 6 am descending orbits and the 6 pm ascending orbits. Validation of 19 months of the standard L2SMP product was done for both AM and PM retrievals using in situ measurements from global core cal/val sites. Accuracy of the soil moisture retrievals averaged over the core sites showed that SMAP accuracy requirements are being met.
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