Spatial Scales of Sea Surface Salinity Subfootprint Variability in the SPURS Regions
Subfootprint variability (SFV), or representativeness error, is variability within the footprint of a satellite that can impact validation by comparison of in situ and remote sensing data. This study seeks to determine the size of the sea surface salinity (SSS) SFV as a function of footprint size in...
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ftdoajarticles:oai:doaj.org/article:bccd8fac8b114ecbbf0c687dec504ea0 2024-01-07T09:45:10+01:00 Spatial Scales of Sea Surface Salinity Subfootprint Variability in the SPURS Regions Frederick M. Bingham Zhijin Li 2020-12-01T00:00:00Z https://doi.org/10.3390/rs12233996 https://doaj.org/article/bccd8fac8b114ecbbf0c687dec504ea0 EN eng MDPI AG https://www.mdpi.com/2072-4292/12/23/3996 https://doaj.org/toc/2072-4292 doi:10.3390/rs12233996 2072-4292 https://doaj.org/article/bccd8fac8b114ecbbf0c687dec504ea0 Remote Sensing, Vol 12, Iss 23, p 3996 (2020) surface salinity remote sensing subfootprint variability representativeness error spatial scale Science Q article 2020 ftdoajarticles https://doi.org/10.3390/rs12233996 2023-12-10T01:48:43Z Subfootprint variability (SFV), or representativeness error, is variability within the footprint of a satellite that can impact validation by comparison of in situ and remote sensing data. This study seeks to determine the size of the sea surface salinity (SSS) SFV as a function of footprint size in two regions that were heavily sampled with in situ data. The Salinity Processes in the Upper-ocean Regional Studies-1 (SPURS-1) experiment was conducted in the subtropical North Atlantic in the period 2012–2013, whereas the SPURS-2 study was conducted in the tropical eastern North Pacific in the period 2016–2017. SSS SFV was also computed using a high-resolution regional model based on the Regional Ocean Modeling System (ROMS). We computed SFV at footprint sizes ranging from 20 to 100 km for both regions. SFV is strongly seasonal, but for different reasons in the two regions. In the SPURS-1 region, the meso- and submesoscale variability seemed to control the size of the SFV. In the SPURS-2 region, the SFV is much larger than SPURS-1 and controlled by patchy rainfall. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Pacific Remote Sensing 12 23 3996 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
surface salinity remote sensing subfootprint variability representativeness error spatial scale Science Q |
spellingShingle |
surface salinity remote sensing subfootprint variability representativeness error spatial scale Science Q Frederick M. Bingham Zhijin Li Spatial Scales of Sea Surface Salinity Subfootprint Variability in the SPURS Regions |
topic_facet |
surface salinity remote sensing subfootprint variability representativeness error spatial scale Science Q |
description |
Subfootprint variability (SFV), or representativeness error, is variability within the footprint of a satellite that can impact validation by comparison of in situ and remote sensing data. This study seeks to determine the size of the sea surface salinity (SSS) SFV as a function of footprint size in two regions that were heavily sampled with in situ data. The Salinity Processes in the Upper-ocean Regional Studies-1 (SPURS-1) experiment was conducted in the subtropical North Atlantic in the period 2012–2013, whereas the SPURS-2 study was conducted in the tropical eastern North Pacific in the period 2016–2017. SSS SFV was also computed using a high-resolution regional model based on the Regional Ocean Modeling System (ROMS). We computed SFV at footprint sizes ranging from 20 to 100 km for both regions. SFV is strongly seasonal, but for different reasons in the two regions. In the SPURS-1 region, the meso- and submesoscale variability seemed to control the size of the SFV. In the SPURS-2 region, the SFV is much larger than SPURS-1 and controlled by patchy rainfall. |
format |
Article in Journal/Newspaper |
author |
Frederick M. Bingham Zhijin Li |
author_facet |
Frederick M. Bingham Zhijin Li |
author_sort |
Frederick M. Bingham |
title |
Spatial Scales of Sea Surface Salinity Subfootprint Variability in the SPURS Regions |
title_short |
Spatial Scales of Sea Surface Salinity Subfootprint Variability in the SPURS Regions |
title_full |
Spatial Scales of Sea Surface Salinity Subfootprint Variability in the SPURS Regions |
title_fullStr |
Spatial Scales of Sea Surface Salinity Subfootprint Variability in the SPURS Regions |
title_full_unstemmed |
Spatial Scales of Sea Surface Salinity Subfootprint Variability in the SPURS Regions |
title_sort |
spatial scales of sea surface salinity subfootprint variability in the spurs regions |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/rs12233996 https://doaj.org/article/bccd8fac8b114ecbbf0c687dec504ea0 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Remote Sensing, Vol 12, Iss 23, p 3996 (2020) |
op_relation |
https://www.mdpi.com/2072-4292/12/23/3996 https://doaj.org/toc/2072-4292 doi:10.3390/rs12233996 2072-4292 https://doaj.org/article/bccd8fac8b114ecbbf0c687dec504ea0 |
op_doi |
https://doi.org/10.3390/rs12233996 |
container_title |
Remote Sensing |
container_volume |
12 |
container_issue |
23 |
container_start_page |
3996 |
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1787426630368493568 |