NARR-based analysis of changes in the mesoscale wind and temperature over the Hudson Bay Lowlands and their impact on the surface energy balance: 1979–2018
The Hudson Bay exerts a strong advective influence on the surface energy balance of the adjacent Hudson Bay Lowlands (HBL) of Canada. The onshore winds are relatively cold and moist compared to the warmer and drier offshore winds. The contrasting thermal and humidity properties of these two air mass...
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ftnipr:oai:nipr.repo.nii.ac.jp:00016968 2023-05-15T16:35:02+02:00 NARR-based analysis of changes in the mesoscale wind and temperature over the Hudson Bay Lowlands and their impact on the surface energy balance: 1979–2018 2022-09 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16968 http://id.nii.ac.jp/1291/00016837/ en eng https://doi.org/10.1016/j.polar.2022.100861 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16968 http://id.nii.ac.jp/1291/00016837/ Polar Science, 33, 100861(2022-09) 18739652 Hudson Bay Lowlands Climate change Energy balance Sea-ice NARR Journal Article 2022 ftnipr https://doi.org/10.1016/j.polar.2022.100861 2022-12-03T19:43:26Z The Hudson Bay exerts a strong advective influence on the surface energy balance of the adjacent Hudson Bay Lowlands (HBL) of Canada. The onshore winds are relatively cold and moist compared to the warmer and drier offshore winds. The contrasting thermal and humidity properties of these two air masses affect the partitioning of net radiation between the various heat fluxes over the HBL. We show that global warming has been accompanied by significant changes in the mesoscale wind regimes and the advective role of the Hudson Bay on the surface energy balance over the HBL. On average, we found a significant increasing trend in onshore wind frequency during the growing season of about 7% over the past 40 years. The most pronounced increase in onshore winds of 17% occurred in June during which ice cover on Hudson Bay has remained highly persistent over the past 40 years. The resulting shift from offshore to onshore winds dominance over the region has resulted in an enhancement of convective heat transfer to the atmosphere and a reduction of conductive heat transfer into the ground. Article in Journal/Newspaper Hudson Bay Polar Science Polar Science Sea ice National Institute of Polar Research Repository, Japan Hudson Bay Canada Hudson Polar Science 33 100861 |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
Hudson Bay Lowlands Climate change Energy balance Sea-ice NARR |
spellingShingle |
Hudson Bay Lowlands Climate change Energy balance Sea-ice NARR NARR-based analysis of changes in the mesoscale wind and temperature over the Hudson Bay Lowlands and their impact on the surface energy balance: 1979–2018 |
topic_facet |
Hudson Bay Lowlands Climate change Energy balance Sea-ice NARR |
description |
The Hudson Bay exerts a strong advective influence on the surface energy balance of the adjacent Hudson Bay Lowlands (HBL) of Canada. The onshore winds are relatively cold and moist compared to the warmer and drier offshore winds. The contrasting thermal and humidity properties of these two air masses affect the partitioning of net radiation between the various heat fluxes over the HBL. We show that global warming has been accompanied by significant changes in the mesoscale wind regimes and the advective role of the Hudson Bay on the surface energy balance over the HBL. On average, we found a significant increasing trend in onshore wind frequency during the growing season of about 7% over the past 40 years. The most pronounced increase in onshore winds of 17% occurred in June during which ice cover on Hudson Bay has remained highly persistent over the past 40 years. The resulting shift from offshore to onshore winds dominance over the region has resulted in an enhancement of convective heat transfer to the atmosphere and a reduction of conductive heat transfer into the ground. |
format |
Article in Journal/Newspaper |
title |
NARR-based analysis of changes in the mesoscale wind and temperature over the Hudson Bay Lowlands and their impact on the surface energy balance: 1979–2018 |
title_short |
NARR-based analysis of changes in the mesoscale wind and temperature over the Hudson Bay Lowlands and their impact on the surface energy balance: 1979–2018 |
title_full |
NARR-based analysis of changes in the mesoscale wind and temperature over the Hudson Bay Lowlands and their impact on the surface energy balance: 1979–2018 |
title_fullStr |
NARR-based analysis of changes in the mesoscale wind and temperature over the Hudson Bay Lowlands and their impact on the surface energy balance: 1979–2018 |
title_full_unstemmed |
NARR-based analysis of changes in the mesoscale wind and temperature over the Hudson Bay Lowlands and their impact on the surface energy balance: 1979–2018 |
title_sort |
narr-based analysis of changes in the mesoscale wind and temperature over the hudson bay lowlands and their impact on the surface energy balance: 1979–2018 |
publishDate |
2022 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16968 http://id.nii.ac.jp/1291/00016837/ |
geographic |
Hudson Bay Canada Hudson |
geographic_facet |
Hudson Bay Canada Hudson |
genre |
Hudson Bay Polar Science Polar Science Sea ice |
genre_facet |
Hudson Bay Polar Science Polar Science Sea ice |
op_relation |
https://doi.org/10.1016/j.polar.2022.100861 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=16968 http://id.nii.ac.jp/1291/00016837/ Polar Science, 33, 100861(2022-09) 18739652 |
op_doi |
https://doi.org/10.1016/j.polar.2022.100861 |
container_title |
Polar Science |
container_volume |
33 |
container_start_page |
100861 |
_version_ |
1766025153115848704 |