Resolution Enhancement of SMAP Passive Soil Moisture Estimates Article Swipe
Jordan Paul Brown
,
David G. Long
·
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/rs14071761
YOU?
·
· 2022
· Open Access
·
· DOI: https://doi.org/10.3390/rs14071761
The Soil Moisture Active Passive (SMAP) mission includes a unique combination of instruments intended to provide daily global soil moisture data with high accuracy and resolution. Due to radar instrument failure, the default resolution of the data product decreased from the intended 9 km to 36 km shortly after the mission started to return data. To improve this, we employed the Scatterometer Image Reconstruction algorithm in its radiometer form (rSIR) to enhance the resolution of the radiometer brightness temperature measurements from which the soil moisture was derived. This paper compares the soil moisture estimates created from the rSIR-enhanced brightness temperatures with SMAP project radiometer L2_SM_SP and SMAP-Sentinel L2_SM_P products reported on 9 km and 3 km grids, respectively. We find that the difference of the rSIR-enhanced passive soil moisture product is generally within 0.020 cm3 cm−3 RMS of the 9 km SMAP radiometer L2_SM_SP and 0.045 cm3 cm−3 RMS of the 3 km SMAP-Sentinel L2_SM_P soil moisture products. The accuracy of the rSIR soil moisture can be improved by including better antenna pattern correction methods applied to the input TB measurements.
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Metadata
- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/rs14071761
- https://www.mdpi.com/2072-4292/14/7/1761/pdf?version=1649253990
- OA Status
- gold
- Cited By
- 6
- References
- 19
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4224280019
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4224280019Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/rs14071761Digital Object Identifier
- Title
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Resolution Enhancement of SMAP Passive Soil Moisture EstimatesWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2022Year of publication
- Publication date
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2022-04-06Full publication date if available
- Authors
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Jordan Paul Brown, David G. LongList of authors in order
- Landing page
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https://doi.org/10.3390/rs14071761Publisher landing page
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https://www.mdpi.com/2072-4292/14/7/1761/pdf?version=1649253990Direct link to full text PDF
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- OA status
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goldOpen access status per OpenAlex
- OA URL
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https://www.mdpi.com/2072-4292/14/7/1761/pdf?version=1649253990Direct OA link when available
- Concepts
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Radiometer, Environmental science, Brightness temperature, Remote sensing, Water content, Scatterometer, Radar, Moisture, Brightness, Meteorology, Geology, Computer science, Physics, Geotechnical engineering, Optics, TelecommunicationsTop concepts (fields/topics) attached by OpenAlex
- Cited by
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6Total citation count in OpenAlex
- Citations by year (recent)
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2025: 2, 2024: 2, 2023: 2Per-year citation counts (last 5 years)
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19Number of works referenced by this work
- Related works (count)
-
10Other works algorithmically related by OpenAlex
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| abstract_inverted_index.(rSIR) | 69 |
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| abstract_inverted_index.cm−3 | 135, 147 |
| abstract_inverted_index.global | 17 |
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| abstract_inverted_index.including | 169 |
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| abstract_inverted_index.rSIR-enhanced | 97, 125 |
| abstract_inverted_index.respectively. | 117 |
| abstract_inverted_index.Reconstruction | 63 |
| cited_by_percentile_year.max | 97 |
| cited_by_percentile_year.min | 94 |
| corresponding_author_ids | https://openalex.org/A5079925208 |
| countries_distinct_count | 1 |
| institutions_distinct_count | 2 |
| corresponding_institution_ids | https://openalex.org/I100005738 |
| sustainable_development_goals[0].id | https://metadata.un.org/sdg/15 |
| sustainable_development_goals[0].score | 0.6899999976158142 |
| sustainable_development_goals[0].display_name | Life in Land |
| citation_normalized_percentile.value | 0.59263278 |
| citation_normalized_percentile.is_in_top_1_percent | False |
| citation_normalized_percentile.is_in_top_10_percent | False |