Correlation between Arctic river discharge and sea ice formation in Laptev Sea using sea surface salinity from SMOS satellite
European Geosciences Union (EGU) General Assembly 2020, 4-8 May 2020
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2020-05-04
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dig-icm-es-10261-2362612022-11-14T10:58:44Z Correlation between Arctic river discharge and sea ice formation in Laptev Sea using sea surface salinity from SMOS satellite Gabarró, Carolina Martínez, Justino González Gambau, Verónica González-Haro, Cristina Olmedo, Estrella Turiel, Antonio Bertino, Laurent Xie, Jiping Raj, Roshin P. Catany, Rafael Arias, Manuel Sabia, Roberto Fernández-Prieto, Diego European Geosciences Union (EGU) General Assembly 2020, 4-8 May 2020 During the last 3 decades, the Arctic rivers have increased their discharge around 10%, mainly due to the increase of the global atmospheric temperature. The increase of the river discharge carries higher loads of dissolved organic matter (DOM) and suspended matter (SM) entering to the Arctic Ocean. This results in increased absorption of solar energy in the mixed layer, which can potentially contribute to the general sea ice retreat. Observation based studies (e.g. Bauch et al., 2013) showed correlation between river water discharge and local sea ice melting on the Laptev sea shelf due to the change on the ocean heat. Previous studies are based with a limited number of observations, both in space and in time. Thanks to the ESA SMOS (Soil Moisture and Ocean Salinity) and NASA SMAP (Soil Moisture Active Passive) missions we have daily the sea surface salinity (SSS) maps from the Arctic, which permit to observe the salinity variations due to the river discharges. The Arctic sea surface salinity products obtained from SMOS measurements have been improved considerable by the Barcelona Expert Center (BEC) team thanks to the project Arctic+Salinity, funded by ESA. The new version of the product (v3) covers the years from 2011 up to 2018, have a spatial resolution of 25km and are daily maps with 9 day averages. The Arctic+ SSS maps provide a better description of the salinity gradients and a better effective spatial resolution than the previous versions of the Arctic product, so the salinity fronts are better resolved. The quality assessment of the Arctic+SSS product is challenging because, in this region, there are scarce number of in-situ measurements. The high effective spatial resolution of the Arctic+ SSS maps will permit to study for the first time scientific physical processes that occurs in the Arctic. We will explore if a correlation between the Lena and Ob rivers discharge with the sea ice melting and freeze up is observed with satellite data, as already stated with in-situ measurements by Bauch et al. 2013. Salinity and sea ice thickness maps from SMOS and sea ice concentration from OSISAF will be used in this study. Bauch, D.,Hölemann, J. , Nikulina, A. , Wegner, C., Janout, M., Timokhov, L. and Kassens, H. (2013): Correlation of river water and local sea-ice melting on the Laptev Sea shelf (Siberian Arctic) , Journal of Geophysical Research C: Oceans, 118 (1), pp. 550-561 . doi: 10.1002/jgrc.20076 2021-03-29T09:20:23Z 2021-03-29T09:20:23Z 2020-05-04 2021-03-29T09:20:23Z comunicación de congreso http://purl.org/coar/resource_type/c_5794 EGU General Assembly (2020) http://hdl.handle.net/10261/236261 10.5194/egusphere-egu2020-10052 https://doi.org/10.5194/egusphere-egu2020-10052 Sí open European Geosciences Union |
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European Geosciences Union (EGU) General Assembly 2020, 4-8 May 2020 |
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author |
Gabarró, Carolina Martínez, Justino González Gambau, Verónica González-Haro, Cristina Olmedo, Estrella Turiel, Antonio Bertino, Laurent Xie, Jiping Raj, Roshin P. Catany, Rafael Arias, Manuel Sabia, Roberto Fernández-Prieto, Diego |
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Gabarró, Carolina Martínez, Justino González Gambau, Verónica González-Haro, Cristina Olmedo, Estrella Turiel, Antonio Bertino, Laurent Xie, Jiping Raj, Roshin P. Catany, Rafael Arias, Manuel Sabia, Roberto Fernández-Prieto, Diego Correlation between Arctic river discharge and sea ice formation in Laptev Sea using sea surface salinity from SMOS satellite |
author_facet |
Gabarró, Carolina Martínez, Justino González Gambau, Verónica González-Haro, Cristina Olmedo, Estrella Turiel, Antonio Bertino, Laurent Xie, Jiping Raj, Roshin P. Catany, Rafael Arias, Manuel Sabia, Roberto Fernández-Prieto, Diego |
author_sort |
Gabarró, Carolina |
title |
Correlation between Arctic river discharge and sea ice formation in Laptev Sea using sea surface salinity from SMOS satellite |
title_short |
Correlation between Arctic river discharge and sea ice formation in Laptev Sea using sea surface salinity from SMOS satellite |
title_full |
Correlation between Arctic river discharge and sea ice formation in Laptev Sea using sea surface salinity from SMOS satellite |
title_fullStr |
Correlation between Arctic river discharge and sea ice formation in Laptev Sea using sea surface salinity from SMOS satellite |
title_full_unstemmed |
Correlation between Arctic river discharge and sea ice formation in Laptev Sea using sea surface salinity from SMOS satellite |
title_sort |
correlation between arctic river discharge and sea ice formation in laptev sea using sea surface salinity from smos satellite |
publisher |
European Geosciences Union |
publishDate |
2020-05-04 |
url |
http://hdl.handle.net/10261/236261 |
work_keys_str_mv |
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