An initial assessment of SMAP soil moisture retrievals using high-resolution model simulations and in situ observations
At the end of its first year of operation, we compare soil moisture retrievals from the Soil Moisture Active Passive (SMAP) mission to simulations from a land surface model with meteorological forcing downscaled from observations/reanalysis and in situ observations from sparse monitoring networks wi...
| Main Authors: | , , , , |
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| Other Authors: | |
| Format: | Article |
| Language: | en_US |
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American Geophysical Union (AGU)
2017
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| Online Access: | http://hdl.handle.net/1721.1/110321 https://orcid.org/0000-0002-8362-4761 |
| _version_ | 1826214263863115776 |
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| author | Pan, Ming Cai, Xitian Chaney, Nathaniel W. Entekhabi, Dara Wood, Eric F. |
| author2 | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Pan, Ming Cai, Xitian Chaney, Nathaniel W. Entekhabi, Dara Wood, Eric F. |
| author_sort | Pan, Ming |
| collection | MIT |
| description | At the end of its first year of operation, we compare soil moisture retrievals from the Soil Moisture Active Passive (SMAP) mission to simulations from a land surface model with meteorological forcing downscaled from observations/reanalysis and in situ observations from sparse monitoring networks within continental United States (CONUS). The radar failure limits the duration of comparisons for the active and combined products (~3 months). Nevertheless, the passive product compares very well against in situ observations over CONUS. On average, SMAP compares to the in situ data even better than the land surface model and provides significant added value on top of the model and thus good potential for data assimilation. At large scale, SMAP is in good agreement with the model in most of CONUS with less-than-expected degradation over mountainous areas. Lower correlation between SMAP and the model is seen in the forested east CONUS and significantly lower over the Canadian boreal forests. |
| first_indexed | 2024-09-23T16:02:23Z |
| format | Article |
| id | mit-1721.1/110321 |
| institution | Massachusetts Institute of Technology |
| language | en_US |
| last_indexed | 2024-09-23T16:02:23Z |
| publishDate | 2017 |
| publisher | American Geophysical Union (AGU) |
| record_format | dspace |
| spelling | mit-1721.1/1103212022-10-02T05:56:36Z An initial assessment of SMAP soil moisture retrievals using high-resolution model simulations and in situ observations Pan, Ming Cai, Xitian Chaney, Nathaniel W. Entekhabi, Dara Wood, Eric F. Massachusetts Institute of Technology. Department of Civil and Environmental Engineering Entekhabi, Dara At the end of its first year of operation, we compare soil moisture retrievals from the Soil Moisture Active Passive (SMAP) mission to simulations from a land surface model with meteorological forcing downscaled from observations/reanalysis and in situ observations from sparse monitoring networks within continental United States (CONUS). The radar failure limits the duration of comparisons for the active and combined products (~3 months). Nevertheless, the passive product compares very well against in situ observations over CONUS. On average, SMAP compares to the in situ data even better than the land surface model and provides significant added value on top of the model and thus good potential for data assimilation. At large scale, SMAP is in good agreement with the model in most of CONUS with less-than-expected degradation over mountainous areas. Lower correlation between SMAP and the model is seen in the forested east CONUS and significantly lower over the Canadian boreal forests. United States. National Aeronautics and Space Administration (NNX14AH92G) United States. National Aeronautics and Space Administration (NNX13AI44G) 2017-06-27T18:23:34Z 2017-06-27T18:23:34Z 2016-09 2016-06 Article http://purl.org/eprint/type/JournalArticle 0094-8276 http://hdl.handle.net/1721.1/110321 Pan, Ming; Cai, Xitian; Chaney, Nathaniel W.; Entekhabi, Dara and Wood, Eric F. “An Initial Assessment of SMAP Soil Moisture Retrievals Using High-Resolution Model Simulations and in Situ Observations.” Geophysical Research Letters 43, 18 (September 2016): 9662–9668 © 2016 American Geophysical Union https://orcid.org/0000-0002-8362-4761 en_US http://dx.doi.org/10.1002/2016gl069964 Geophysical Research Letters Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use. application/pdf American Geophysical Union (AGU) Other repository |
| spellingShingle | Pan, Ming Cai, Xitian Chaney, Nathaniel W. Entekhabi, Dara Wood, Eric F. An initial assessment of SMAP soil moisture retrievals using high-resolution model simulations and in situ observations |
| title | An initial assessment of SMAP soil moisture retrievals using high-resolution model simulations and in situ observations |
| title_full | An initial assessment of SMAP soil moisture retrievals using high-resolution model simulations and in situ observations |
| title_fullStr | An initial assessment of SMAP soil moisture retrievals using high-resolution model simulations and in situ observations |
| title_full_unstemmed | An initial assessment of SMAP soil moisture retrievals using high-resolution model simulations and in situ observations |
| title_short | An initial assessment of SMAP soil moisture retrievals using high-resolution model simulations and in situ observations |
| title_sort | initial assessment of smap soil moisture retrievals using high resolution model simulations and in situ observations |
| url | http://hdl.handle.net/1721.1/110321 https://orcid.org/0000-0002-8362-4761 |
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