Spacebased Sea Surface Salinity Depicts Freshwater Changes in the Hudson Bay
2019 Living Planet Symposium, 13-17 May 2019, Milan, Italy This study investigates the sea surface salinity (SSS) observed by the Soil Moisture Active Passive (SMAP) mission (2015-present) and Soil Moisture Ocean Salinity (SMOS) mission (2011-present) in the open water season in the Hudson Bay and i...
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ftcsic:oai:digital.csic.es:10261/205043 2024-02-11T10:01:15+01:00 Spacebased Sea Surface Salinity Depicts Freshwater Changes in the Hudson Bay Tang, Wenqing Yueh, Simon Yang, Daqing Mcleod, Ellie Fore, Alexander Hayashi, Akiko Olmedo, Estrella Martínez, Justino Gabarró, Carolina 2019-05 http://hdl.handle.net/10261/205043 unknown European Space Agency Sí 2019 Living Planet Symposium (2019) http://hdl.handle.net/10261/205043 none comunicación de congreso http://purl.org/coar/resource_type/c_5794 2019 ftcsic 2024-01-16T10:50:39Z 2019 Living Planet Symposium, 13-17 May 2019, Milan, Italy This study investigates the sea surface salinity (SSS) observed by the Soil Moisture Active Passive (SMAP) mission (2015-present) and Soil Moisture Ocean Salinity (SMOS) mission (2011-present) in the open water season in the Hudson Bay and its association with the freshwater flux. A unique large inland sea in northern Canada located in the southern margin of the Arctic Circle, the Hudson Bay is covered by ice and snow in winter. Around 1300 km3 low salinity liquid water trapped in ice is completely melt and released in summer. The length of the open water season has been increasing in recent years, allowing more days during which the SSS can be retrieved from satellite microwave radiometer data (from SMAP and SMOS). The SSS reflects and links the impact of freshwater inputs from river discharge, sea ice changes, surface forcing (P-E), and exchange with northern Atlantic Ocean through the Hudson Strait and Arctic Ocean through the Foxe Basin. Both SMAP (JPL V4) and SMOS (BEC) SSS shows a general pattern of freshening in the James and southern Hudson bay, salty in the northern part, and saltier in the Hudson Strait and the Foxe Basin, which are consistent for three years during (2015-2017). However, the SMAP SSS shows some patches of extreme low SSS with large inter-annual variations, particularly early in the melt season; which is missing in SMOS. Dividing the Hudson Bay system into sub-regions, we examine local freshwater inputs in these regions using data of river discharge, sea ice concentration, surface precipitation and evaporation data. We found river discharges and seasonal sea ice changes are the two dominant processes affecting SSS inter-annual variability, but at different time and places; while the surface forcing (P-E) may play a secondary role. Daily discharge rate from the rivers surrounding the Hudson Bay (Canadian EC) was analyzed. We identified that the low SSS in the eastern Hudson and James Bay in August 2015 could be linked with ... Conference Object Arctic Arctic Ocean Foxe Basin Hudson Bay Hudson Strait Sea ice James Bay Digital.CSIC (Spanish National Research Council) Arctic Arctic Ocean Canada Foxe Basin ENVELOPE(-77.918,-77.918,65.931,65.931) Hudson Hudson Bay Hudson Strait ENVELOPE(-70.000,-70.000,62.000,62.000) |
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Open Polar |
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Digital.CSIC (Spanish National Research Council) |
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ftcsic |
language |
unknown |
description |
2019 Living Planet Symposium, 13-17 May 2019, Milan, Italy This study investigates the sea surface salinity (SSS) observed by the Soil Moisture Active Passive (SMAP) mission (2015-present) and Soil Moisture Ocean Salinity (SMOS) mission (2011-present) in the open water season in the Hudson Bay and its association with the freshwater flux. A unique large inland sea in northern Canada located in the southern margin of the Arctic Circle, the Hudson Bay is covered by ice and snow in winter. Around 1300 km3 low salinity liquid water trapped in ice is completely melt and released in summer. The length of the open water season has been increasing in recent years, allowing more days during which the SSS can be retrieved from satellite microwave radiometer data (from SMAP and SMOS). The SSS reflects and links the impact of freshwater inputs from river discharge, sea ice changes, surface forcing (P-E), and exchange with northern Atlantic Ocean through the Hudson Strait and Arctic Ocean through the Foxe Basin. Both SMAP (JPL V4) and SMOS (BEC) SSS shows a general pattern of freshening in the James and southern Hudson bay, salty in the northern part, and saltier in the Hudson Strait and the Foxe Basin, which are consistent for three years during (2015-2017). However, the SMAP SSS shows some patches of extreme low SSS with large inter-annual variations, particularly early in the melt season; which is missing in SMOS. Dividing the Hudson Bay system into sub-regions, we examine local freshwater inputs in these regions using data of river discharge, sea ice concentration, surface precipitation and evaporation data. We found river discharges and seasonal sea ice changes are the two dominant processes affecting SSS inter-annual variability, but at different time and places; while the surface forcing (P-E) may play a secondary role. Daily discharge rate from the rivers surrounding the Hudson Bay (Canadian EC) was analyzed. We identified that the low SSS in the eastern Hudson and James Bay in August 2015 could be linked with ... |
format |
Conference Object |
author |
Tang, Wenqing Yueh, Simon Yang, Daqing Mcleod, Ellie Fore, Alexander Hayashi, Akiko Olmedo, Estrella Martínez, Justino Gabarró, Carolina |
spellingShingle |
Tang, Wenqing Yueh, Simon Yang, Daqing Mcleod, Ellie Fore, Alexander Hayashi, Akiko Olmedo, Estrella Martínez, Justino Gabarró, Carolina Spacebased Sea Surface Salinity Depicts Freshwater Changes in the Hudson Bay |
author_facet |
Tang, Wenqing Yueh, Simon Yang, Daqing Mcleod, Ellie Fore, Alexander Hayashi, Akiko Olmedo, Estrella Martínez, Justino Gabarró, Carolina |
author_sort |
Tang, Wenqing |
title |
Spacebased Sea Surface Salinity Depicts Freshwater Changes in the Hudson Bay |
title_short |
Spacebased Sea Surface Salinity Depicts Freshwater Changes in the Hudson Bay |
title_full |
Spacebased Sea Surface Salinity Depicts Freshwater Changes in the Hudson Bay |
title_fullStr |
Spacebased Sea Surface Salinity Depicts Freshwater Changes in the Hudson Bay |
title_full_unstemmed |
Spacebased Sea Surface Salinity Depicts Freshwater Changes in the Hudson Bay |
title_sort |
spacebased sea surface salinity depicts freshwater changes in the hudson bay |
publisher |
European Space Agency |
publishDate |
2019 |
url |
http://hdl.handle.net/10261/205043 |
long_lat |
ENVELOPE(-77.918,-77.918,65.931,65.931) ENVELOPE(-70.000,-70.000,62.000,62.000) |
geographic |
Arctic Arctic Ocean Canada Foxe Basin Hudson Hudson Bay Hudson Strait |
geographic_facet |
Arctic Arctic Ocean Canada Foxe Basin Hudson Hudson Bay Hudson Strait |
genre |
Arctic Arctic Ocean Foxe Basin Hudson Bay Hudson Strait Sea ice James Bay |
genre_facet |
Arctic Arctic Ocean Foxe Basin Hudson Bay Hudson Strait Sea ice James Bay |
op_relation |
Sí 2019 Living Planet Symposium (2019) http://hdl.handle.net/10261/205043 |
op_rights |
none |
_version_ |
1790597042470387712 |