Satellite Remote Sensing & Model Reanalysis Estimates of Upper- Ocean Heat Content in the Canada Basin
The partitioning of solar radiation entering the upper ocean in the presence of sea ice during the Arctic summer is essential to predicting future ice retreat. This study compares predicted incoming heat with upper ocean density and thermal structure by constructing a simple, one-dimensional vertica...
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ftcalifstunimbay:oai:digitalcommons.csumb.edu:caps_thes_all-2253 2023-05-15T14:58:41+02:00 Satellite Remote Sensing & Model Reanalysis Estimates of Upper- Ocean Heat Content in the Canada Basin Camarato, Amanda 2021-10-01T07:00:00Z application/pdf https://digitalcommons.csumb.edu/caps_thes_all/1216 https://digitalcommons.csumb.edu/cgi/viewcontent.cgi?article=2253&context=caps_thes_all unknown Digital Commons @ CSUMB https://digitalcommons.csumb.edu/caps_thes_all/1216 https://digitalcommons.csumb.edu/cgi/viewcontent.cgi?article=2253&context=caps_thes_all Capstone Projects and Master's Theses solar radiation ice transmittance upper ocean heat residual heat Canada Basin text 2021 ftcalifstunimbay 2022-01-09T17:58:31Z The partitioning of solar radiation entering the upper ocean in the presence of sea ice during the Arctic summer is essential to predicting future ice retreat. This study compares predicted incoming heat with upper ocean density and thermal structure by constructing a simple, one-dimensional vertical heat budget around drifting buoy clusters deployed as part of the Stratified Ocean Dynamics of the Arctic experiment. Model reanalysis surface heat flux estimates were used with Synthetic Aperture Radar (SAR) and satellite radiometer derived open water fraction (OWF) estimates to construct an incoming surface heat flux budget. The incoming solar radiation forced upper-ocean heat gains, either stored locally or contributing to ice melt, through open water and the thinning ice cover. The estimated seasonal heat input directly through SAR-determined open water is roughly 44 MJ m-2, and the measured heat sinks total 104 MJ m-2 for mixed layer heat gain, basal melting, and basal conductance. Given the lack of sizeable advective heat sources, these results suggest that the residual heat source is through-ice transmittance. A transmission parameter was estimated from the residual heat flux and comparable to previous in situ observations of ice transmittance. These results suggest that through-ice transmittance is the dominating heat source around the observation site during the summer 2019 melt season. Text Arctic canada basin Sea ice Digital Commons @ CSUMB (California State University, Monterey Bay) Arctic Canada |
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Digital Commons @ CSUMB (California State University, Monterey Bay) |
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ftcalifstunimbay |
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solar radiation ice transmittance upper ocean heat residual heat Canada Basin |
spellingShingle |
solar radiation ice transmittance upper ocean heat residual heat Canada Basin Camarato, Amanda Satellite Remote Sensing & Model Reanalysis Estimates of Upper- Ocean Heat Content in the Canada Basin |
topic_facet |
solar radiation ice transmittance upper ocean heat residual heat Canada Basin |
description |
The partitioning of solar radiation entering the upper ocean in the presence of sea ice during the Arctic summer is essential to predicting future ice retreat. This study compares predicted incoming heat with upper ocean density and thermal structure by constructing a simple, one-dimensional vertical heat budget around drifting buoy clusters deployed as part of the Stratified Ocean Dynamics of the Arctic experiment. Model reanalysis surface heat flux estimates were used with Synthetic Aperture Radar (SAR) and satellite radiometer derived open water fraction (OWF) estimates to construct an incoming surface heat flux budget. The incoming solar radiation forced upper-ocean heat gains, either stored locally or contributing to ice melt, through open water and the thinning ice cover. The estimated seasonal heat input directly through SAR-determined open water is roughly 44 MJ m-2, and the measured heat sinks total 104 MJ m-2 for mixed layer heat gain, basal melting, and basal conductance. Given the lack of sizeable advective heat sources, these results suggest that the residual heat source is through-ice transmittance. A transmission parameter was estimated from the residual heat flux and comparable to previous in situ observations of ice transmittance. These results suggest that through-ice transmittance is the dominating heat source around the observation site during the summer 2019 melt season. |
format |
Text |
author |
Camarato, Amanda |
author_facet |
Camarato, Amanda |
author_sort |
Camarato, Amanda |
title |
Satellite Remote Sensing & Model Reanalysis Estimates of Upper- Ocean Heat Content in the Canada Basin |
title_short |
Satellite Remote Sensing & Model Reanalysis Estimates of Upper- Ocean Heat Content in the Canada Basin |
title_full |
Satellite Remote Sensing & Model Reanalysis Estimates of Upper- Ocean Heat Content in the Canada Basin |
title_fullStr |
Satellite Remote Sensing & Model Reanalysis Estimates of Upper- Ocean Heat Content in the Canada Basin |
title_full_unstemmed |
Satellite Remote Sensing & Model Reanalysis Estimates of Upper- Ocean Heat Content in the Canada Basin |
title_sort |
satellite remote sensing & model reanalysis estimates of upper- ocean heat content in the canada basin |
publisher |
Digital Commons @ CSUMB |
publishDate |
2021 |
url |
https://digitalcommons.csumb.edu/caps_thes_all/1216 https://digitalcommons.csumb.edu/cgi/viewcontent.cgi?article=2253&context=caps_thes_all |
geographic |
Arctic Canada |
geographic_facet |
Arctic Canada |
genre |
Arctic canada basin Sea ice |
genre_facet |
Arctic canada basin Sea ice |
op_source |
Capstone Projects and Master's Theses |
op_relation |
https://digitalcommons.csumb.edu/caps_thes_all/1216 https://digitalcommons.csumb.edu/cgi/viewcontent.cgi?article=2253&context=caps_thes_all |
_version_ |
1766330807397384192 |