SSS SMOS/SMAP OI L4 maps
10 years of L-Band remote sensing Sea Surface Salinity (SSS) measurements have proven the capability of satellite SSS to resolve large scale to mesoscale SSS features in tropical to subtropical ocean. In mid to high latitude, L-Band measurements still suffer from large scale and time varying biases....
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Online Access: | https://doi.org/10.17882/73142 https://www.seanoe.org/data/00619/73142/ |
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ftseanoe:oai:seanoe.org:73142 2023-11-12T04:13:31+01:00 SSS SMOS/SMAP OI L4 maps Kolodziejczyk, Nicolas Hamon, Mathieu Boutin, Jacqueline Vergely, Jean-luc Supply, Alexandre Reverdin, Gilles North 89.0, South -89.0, East 180.0, West -180.0 2020-04-06 https://doi.org/10.17882/73142 https://www.seanoe.org/data/00619/73142/ unknown SEANOE doi:10.17882/73142 https://doi.org/10.17882/73142 https://www.seanoe.org/data/00619/73142/ CC0 Sea Surface Salinity SMOS SMAP Sea Surface Density Sea Surface Spiciness Sea Surface Temperature ISAS Argo dataset 2020 ftseanoe https://doi.org/10.17882/73142 2023-10-25T16:24:23Z 10 years of L-Band remote sensing Sea Surface Salinity (SSS) measurements have proven the capability of satellite SSS to resolve large scale to mesoscale SSS features in tropical to subtropical ocean. In mid to high latitude, L-Band measurements still suffer from large scale and time varying biases. Here, a simple method is proposed to mitigate the large scale and time varying biases. First, in order to estimate these biases, an Optimal Interpolation (OI) using a large correlation scale is used to map SMOS and SMAP L3 products and is compared to equivalent mapping of in situ observations. Then, a second mapping is performed on corrected SSS at scale of SMOS/SMAP resolution (~45 km). This procedure allows to correct and merge both products, and to increase signal to noise ratio of the absolute SSS estimates. Using thermodynamic equation of state (TEOS-10), the resulting L4 SSS product is combined with microwave satellite SST products to produce sea surface density and spiciness, useful to fully characterize the surface ocean water masses. The new L4 SSS products is validated against independent in situ measurements from low to high latitudes. The L4 products exhibits a significant improvement in mid-and high latitude in comparison to the existing SMOS and SMAP L3 products. However, in the Arctic Ocean, L-Band SSS retrieval issues such as sea ice contamination and low sensitivity in cold water are still challenging to improve L-Band SSS data. Dataset Arctic Arctic Ocean Sea ice SEANOE (Sea scientific open data publication) Arctic Arctic Ocean |
institution |
Open Polar |
collection |
SEANOE (Sea scientific open data publication) |
op_collection_id |
ftseanoe |
language |
unknown |
topic |
Sea Surface Salinity SMOS SMAP Sea Surface Density Sea Surface Spiciness Sea Surface Temperature ISAS Argo |
spellingShingle |
Sea Surface Salinity SMOS SMAP Sea Surface Density Sea Surface Spiciness Sea Surface Temperature ISAS Argo Kolodziejczyk, Nicolas Hamon, Mathieu Boutin, Jacqueline Vergely, Jean-luc Supply, Alexandre Reverdin, Gilles SSS SMOS/SMAP OI L4 maps |
topic_facet |
Sea Surface Salinity SMOS SMAP Sea Surface Density Sea Surface Spiciness Sea Surface Temperature ISAS Argo |
description |
10 years of L-Band remote sensing Sea Surface Salinity (SSS) measurements have proven the capability of satellite SSS to resolve large scale to mesoscale SSS features in tropical to subtropical ocean. In mid to high latitude, L-Band measurements still suffer from large scale and time varying biases. Here, a simple method is proposed to mitigate the large scale and time varying biases. First, in order to estimate these biases, an Optimal Interpolation (OI) using a large correlation scale is used to map SMOS and SMAP L3 products and is compared to equivalent mapping of in situ observations. Then, a second mapping is performed on corrected SSS at scale of SMOS/SMAP resolution (~45 km). This procedure allows to correct and merge both products, and to increase signal to noise ratio of the absolute SSS estimates. Using thermodynamic equation of state (TEOS-10), the resulting L4 SSS product is combined with microwave satellite SST products to produce sea surface density and spiciness, useful to fully characterize the surface ocean water masses. The new L4 SSS products is validated against independent in situ measurements from low to high latitudes. The L4 products exhibits a significant improvement in mid-and high latitude in comparison to the existing SMOS and SMAP L3 products. However, in the Arctic Ocean, L-Band SSS retrieval issues such as sea ice contamination and low sensitivity in cold water are still challenging to improve L-Band SSS data. |
format |
Dataset |
author |
Kolodziejczyk, Nicolas Hamon, Mathieu Boutin, Jacqueline Vergely, Jean-luc Supply, Alexandre Reverdin, Gilles |
author_facet |
Kolodziejczyk, Nicolas Hamon, Mathieu Boutin, Jacqueline Vergely, Jean-luc Supply, Alexandre Reverdin, Gilles |
author_sort |
Kolodziejczyk, Nicolas |
title |
SSS SMOS/SMAP OI L4 maps |
title_short |
SSS SMOS/SMAP OI L4 maps |
title_full |
SSS SMOS/SMAP OI L4 maps |
title_fullStr |
SSS SMOS/SMAP OI L4 maps |
title_full_unstemmed |
SSS SMOS/SMAP OI L4 maps |
title_sort |
sss smos/smap oi l4 maps |
publisher |
SEANOE |
publishDate |
2020 |
url |
https://doi.org/10.17882/73142 https://www.seanoe.org/data/00619/73142/ |
op_coverage |
North 89.0, South -89.0, East 180.0, West -180.0 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice |
genre_facet |
Arctic Arctic Ocean Sea ice |
op_relation |
doi:10.17882/73142 https://doi.org/10.17882/73142 https://www.seanoe.org/data/00619/73142/ |
op_rights |
CC0 |
op_doi |
https://doi.org/10.17882/73142 |
_version_ |
1782331475383812096 |