Heat Flux Sources Analysis to the Ross Ice Shelf Polynya Ice Production Time Series and the Impact of Wind Forcing
The variation of Ross Ice Shelf Polynya (RISP) ice production is a synergistic result of several factors. This study aims to analyze the 2003–2017 RISP ice production time series with respect to the impact of wind forcing on heat flux sources. RISP ice production was estimated from passive microwave...
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ftmdpi:oai:mdpi.com:/2072-4292/11/2/188/ 2023-08-20T04:07:17+02:00 Heat Flux Sources Analysis to the Ross Ice Shelf Polynya Ice Production Time Series and the Impact of Wind Forcing Zian Cheng Xiaoping Pang Xi Zhao Alfred Stein agris 2019-01-18 application/pdf https://doi.org/10.3390/rs11020188 EN eng Multidisciplinary Digital Publishing Institute Ocean Remote Sensing https://dx.doi.org/10.3390/rs11020188 https://creativecommons.org/licenses/by/4.0/ Remote Sensing; Volume 11; Issue 2; Pages: 188 polynya ice production Ross Sea heat flux wind forcing Text 2019 ftmdpi https://doi.org/10.3390/rs11020188 2023-07-31T21:58:59Z The variation of Ross Ice Shelf Polynya (RISP) ice production is a synergistic result of several factors. This study aims to analyze the 2003–2017 RISP ice production time series with respect to the impact of wind forcing on heat flux sources. RISP ice production was estimated from passive microwave sea ice concentration images and reanalysis meteorological data using a thermodynamic model. The total ice production was divided into four components according to the amount of ice produced by different heat fluxes: solar radiation component (Vs), longwave radiation component (Vl), sensible heat flux component (Vfs), and latent heat flux component (Vfe). The results show that Vfs made the largest contribution, followed by Vl and Vfe, while Vs had a negative contribution. Our study reveals that total ice production and Vl, Vfs, and Vfe highly correlated with the RISP area size, whereas Vs negatively correlated with the RISP area size in October, and had a weak influence from April to September. Since total ice production strongly correlates with the polynya area and this significantly correlates with the wind speed of the previous day, strong wind events lead to sharply increased ice production most of the time. Strong wind events, however, may only lead to mildly increasing ice production in October, when enlarged Vs reduces the ice production. Wind speed influences ice production by two mechanisms: impact on polynya area, and impact on heat exchange and phase transformation of ice. Vfs and Vfe are influenced by both mechanisms, while Vs and Vl are only influenced by impact on polynya area. These two mechanisms show different degrees of influence on ice production during different periods. Persistent offshore winds were responsible for the large RISP area and high ice production in October 2005 and June 2007. Text Ice Shelf Ross Ice Shelf Ross Sea Sea ice MDPI Open Access Publishing Ross Sea Ross Ice Shelf Remote Sensing 11 2 188 |
institution |
Open Polar |
collection |
MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
polynya ice production Ross Sea heat flux wind forcing |
spellingShingle |
polynya ice production Ross Sea heat flux wind forcing Zian Cheng Xiaoping Pang Xi Zhao Alfred Stein Heat Flux Sources Analysis to the Ross Ice Shelf Polynya Ice Production Time Series and the Impact of Wind Forcing |
topic_facet |
polynya ice production Ross Sea heat flux wind forcing |
description |
The variation of Ross Ice Shelf Polynya (RISP) ice production is a synergistic result of several factors. This study aims to analyze the 2003–2017 RISP ice production time series with respect to the impact of wind forcing on heat flux sources. RISP ice production was estimated from passive microwave sea ice concentration images and reanalysis meteorological data using a thermodynamic model. The total ice production was divided into four components according to the amount of ice produced by different heat fluxes: solar radiation component (Vs), longwave radiation component (Vl), sensible heat flux component (Vfs), and latent heat flux component (Vfe). The results show that Vfs made the largest contribution, followed by Vl and Vfe, while Vs had a negative contribution. Our study reveals that total ice production and Vl, Vfs, and Vfe highly correlated with the RISP area size, whereas Vs negatively correlated with the RISP area size in October, and had a weak influence from April to September. Since total ice production strongly correlates with the polynya area and this significantly correlates with the wind speed of the previous day, strong wind events lead to sharply increased ice production most of the time. Strong wind events, however, may only lead to mildly increasing ice production in October, when enlarged Vs reduces the ice production. Wind speed influences ice production by two mechanisms: impact on polynya area, and impact on heat exchange and phase transformation of ice. Vfs and Vfe are influenced by both mechanisms, while Vs and Vl are only influenced by impact on polynya area. These two mechanisms show different degrees of influence on ice production during different periods. Persistent offshore winds were responsible for the large RISP area and high ice production in October 2005 and June 2007. |
format |
Text |
author |
Zian Cheng Xiaoping Pang Xi Zhao Alfred Stein |
author_facet |
Zian Cheng Xiaoping Pang Xi Zhao Alfred Stein |
author_sort |
Zian Cheng |
title |
Heat Flux Sources Analysis to the Ross Ice Shelf Polynya Ice Production Time Series and the Impact of Wind Forcing |
title_short |
Heat Flux Sources Analysis to the Ross Ice Shelf Polynya Ice Production Time Series and the Impact of Wind Forcing |
title_full |
Heat Flux Sources Analysis to the Ross Ice Shelf Polynya Ice Production Time Series and the Impact of Wind Forcing |
title_fullStr |
Heat Flux Sources Analysis to the Ross Ice Shelf Polynya Ice Production Time Series and the Impact of Wind Forcing |
title_full_unstemmed |
Heat Flux Sources Analysis to the Ross Ice Shelf Polynya Ice Production Time Series and the Impact of Wind Forcing |
title_sort |
heat flux sources analysis to the ross ice shelf polynya ice production time series and the impact of wind forcing |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2019 |
url |
https://doi.org/10.3390/rs11020188 |
op_coverage |
agris |
geographic |
Ross Sea Ross Ice Shelf |
geographic_facet |
Ross Sea Ross Ice Shelf |
genre |
Ice Shelf Ross Ice Shelf Ross Sea Sea ice |
genre_facet |
Ice Shelf Ross Ice Shelf Ross Sea Sea ice |
op_source |
Remote Sensing; Volume 11; Issue 2; Pages: 188 |
op_relation |
Ocean Remote Sensing https://dx.doi.org/10.3390/rs11020188 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/rs11020188 |
container_title |
Remote Sensing |
container_volume |
11 |
container_issue |
2 |
container_start_page |
188 |
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1774718803956989952 |