Assessment of version 4 of the SMAP passive soil moisture standard product

P. O'Neill; S. Chan; R. Bindlish; T. Jackson; A. Colliander; S. Dunbar; F. Chen; J. Piepmeier; S. Yueh; D. Entekhabi; M. Cosh; T. Caldwell; J. Walker; X. Wu; A. Berg; T. Rowlandson; A. Pacheco; H. McNairn; M. Thibeault; J. Martinez-Fernandez; A. Gonzalez-Zamora; E. Lopez-Baeza; F. Udall; M. Seyfried; D. Bosch; P. Starks; C. Holifield; J. Prueger; Z. Su; R. Van Der Velde; J. Asanuma; M. Palecki; E. Small; M. Zreda; J. C. Calvet; W. Crow; Y. Kerr

doi:10.1109/IGARSS.2017.8127862

Assessment of version 4 of the SMAP passive soil moisture standard product

P. O'Neill, S. Chan, R. Bindlish, T. Jackson, A. Colliander, S. Dunbar, F. Chen, J. Piepmeier, S. Yueh, D. Entekhabi, M. Cosh, T. Caldwell, J. Walker, X. Wu, A. Berg, T. Rowlandson, A. Pacheco, H. McNairn, M. Thibeault, J. Martinez-FernandezA. Gonzalez-Zamora, E. Lopez-Baeza, F. Udall, M. Seyfried, D. Bosch, P. Starks, C. Holifield, J. Prueger, Z. Su, R. Van Der Velde, J. Asanuma, M. Palecki, E. Small, M. Zreda, J. C. Calvet, W. Crow, Y. Kerr

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

8 Scopus citations

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.

Original language	English (US)
Title of host publication	2017 IEEE International Geoscience and Remote Sensing Symposium
Subtitle of host publication	International Cooperation for Global Awareness, IGARSS 2017 - Proceedings
Publisher	Institute of Electrical and Electronics Engineers Inc.
Pages	3941-3944
Number of pages	4
ISBN (Electronic)	9781509049516
DOIs	https://doi.org/10.1109/IGARSS.2017.8127862
State	Published - Dec 1 2017
Event	37th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2017 - Fort Worth, United States Duration: Jul 23 2017 → Jul 28 2017

Publication series

Name	International Geoscience and Remote Sensing Symposium (IGARSS)
Volume	2017-July

Other

Other	37th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2017
Country/Territory	United States
City	Fort Worth
Period	7/23/17 → 7/28/17

Keywords

Accuracy assessment
Cal/val
Passive microwave
SMAP
Soil moisture

ASJC Scopus subject areas

Computer Science Applications
General Earth and Planetary Sciences

Access to Document

10.1109/IGARSS.2017.8127862

Cite this

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., ... Kerr, Y. (2017). Assessment of version 4 of the SMAP passive soil moisture standard product. In 2017 IEEE International Geoscience and Remote Sensing Symposium: International Cooperation for Global Awareness, IGARSS 2017 - Proceedings (pp. 3941-3944). Article 8127862 (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2017-July). Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/IGARSS.2017.8127862

Assessment of version 4 of the SMAP passive soil moisture standard product. / O'Neill, P.; Chan, S.; Bindlish, R. et al.
2017 IEEE International Geoscience and Remote Sensing Symposium: International Cooperation for Global Awareness, IGARSS 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017. p. 3941-3944 8127862 (International Geoscience and Remote Sensing Symposium (IGARSS); Vol. 2017-July).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

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, JC, Crow, W & Kerr, Y 2017, Assessment of version 4 of the SMAP passive soil moisture standard product. in 2017 IEEE International Geoscience and Remote Sensing Symposium: International Cooperation for Global Awareness, IGARSS 2017 - Proceedings., 8127862, International Geoscience and Remote Sensing Symposium (IGARSS), vol. 2017-July, Institute of Electrical and Electronics Engineers Inc., pp. 3941-3944, 37th Annual IEEE International Geoscience and Remote Sensing Symposium, IGARSS 2017, Fort Worth, United States, 7/23/17. https://doi.org/10.1109/IGARSS.2017.8127862

O'Neill P, Chan S, Bindlish R, Jackson T, Colliander A, Dunbar S et al. Assessment of version 4 of the SMAP passive soil moisture standard product. In 2017 IEEE International Geoscience and Remote Sensing Symposium: International Cooperation for Global Awareness, IGARSS 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc. 2017. p. 3941-3944. 8127862. (International Geoscience and Remote Sensing Symposium (IGARSS)). doi: 10.1109/IGARSS.2017.8127862

O'Neill, P. ; Chan, S. ; Bindlish, R. et al. / Assessment of version 4 of the SMAP passive soil moisture standard product. 2017 IEEE International Geoscience and Remote Sensing Symposium: International Cooperation for Global Awareness, IGARSS 2017 - Proceedings. Institute of Electrical and Electronics Engineers Inc., 2017. pp. 3941-3944 (International Geoscience and Remote Sensing Symposium (IGARSS)).

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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.",

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AU - Martinez-Fernandez, J.

AU - Gonzalez-Zamora, A.

AU - Lopez-Baeza, E.

AU - Udall, F.

AU - Seyfried, M.

AU - Bosch, D.

AU - Starks, P.

AU - Holifield, C.

AU - Prueger, J.

AU - Su, Z.

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Assessment of version 4 of the SMAP passive soil moisture standard product

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Publication series

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Keywords

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