| dc.contributor.author | Entekhabi, Dara | |
| dc.date.accessioned | 2018-08-22T14:43:43Z | |
| dc.date.available | 2018-08-22T14:43:43Z | |
| dc.date.issued | 2017-12 | |
| dc.date.submitted | 2017-07 | |
| dc.identifier.isbn | 978-1-5090-4951-6 | |
| dc.identifier.uri | http://hdl.handle.net/1721.1/117465 | |
| dc.description.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. | en_US |
| dc.publisher | Institute of Electrical and Electronics Engineers (IEEE) | en_US |
| dc.relation.isversionof | http://dx.doi.org/10.1109/IGARSS.2017.8127862 | en_US |
| dc.rights | Creative Commons Attribution-Noncommercial-Share Alike | en_US |
| dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/4.0/ | en_US |
| dc.source | Other repository | en_US |
| dc.title | Assessment of version 4 of the SMAP passive soil moisture standard product | en_US |
| dc.type | Article | en_US |
| dc.identifier.citation | O’Neill, P., et al. “Assessment of Version 4 of the SMAP Passive Soil Moisture Standard Product.” 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 23-28 July, 2018, Fort Worth, Texas, IEEE, 2017, pp. 3941–44. | en_US |
| dc.contributor.department | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences | en_US |
| dc.contributor.mitauthor | Entekhabi, Dara | |
| dc.relation.journal | 2017 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) | en_US |
| dc.eprint.version | Author's final manuscript | en_US |
| dc.type.uri | http://purl.org/eprint/type/ConferencePaper | en_US |
| eprint.status | http://purl.org/eprint/status/NonPeerReviewed | en_US |
| dc.date.updated | 2018-08-02T15:08:18Z | |
| dspace.orderedauthors | O'Neill, P.; Chan, S.; Bindlish, R.; Jackson, T.; Colliander, A.; Dunbar, S.; Chen, F.; Piepmeier, J.; Yueh, S.; Entekhabi, D.; Cosh, M.; Caldwell, T.; Walker, J.; Wu, X.; Berg, A.; Rowlandson, T.; Pacheco, A.; McNairn, H.; Thibeault, M.; Martinez-Fernandez, J.; Gonzalez-Zamora, A.; Lopez-Baeza, E.; Udall, F.; Seyfried, M.; Bosch, D.; Starks, P.; Holifield, C.; Prueger, J.; Su, Z.; van der Velde, R.; Asanuma, J.; Palecki, M.; Small, E.; Zreda, M.; Calvet, J-C.; Crow, W.; Kerr, Y. | en_US |
| dspace.embargo.terms | N | en_US |
| dc.identifier.orcid | https://orcid.org/0000-0002-8362-4761 | |
| mit.license | OPEN_ACCESS_POLICY | en_US |
