Insight on Poleward Moisture and Energy Transport into the Arctic from ERA5
With the new-generation reanalysis product (ERA5), the spatiotemporal characteristics of poleward atmospheric moisture and energy transport over the past four decades (1979–2020) were examined. The main channels of atmospheric transport entering the Arctic in the Northern Hemisphere include the Chuk...
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Multidisciplinary Digital Publishing Institute
2022
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Online Access: | https://doi.org/10.3390/atmos13040616 |
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ftmdpi:oai:mdpi.com:/2073-4433/13/4/616/ 2023-08-20T04:03:30+02:00 Insight on Poleward Moisture and Energy Transport into the Arctic from ERA5 Weifu Sun Yu Liang Haibo Bi Yujia Zhao Junmin Meng Jie Zhang agris 2022-04-11 application/pdf https://doi.org/10.3390/atmos13040616 EN eng Multidisciplinary Digital Publishing Institute Climatology https://dx.doi.org/10.3390/atmos13040616 https://creativecommons.org/licenses/by/4.0/ Atmosphere; Volume 13; Issue 4; Pages: 616 moisture transport energy transport arctic Text 2022 ftmdpi https://doi.org/10.3390/atmos13040616 2023-08-01T04:43:39Z With the new-generation reanalysis product (ERA5), the spatiotemporal characteristics of poleward atmospheric moisture and energy transport over the past four decades (1979–2020) were examined. The main channels of atmospheric transport entering the Arctic in the Northern Hemisphere include the Chukchi Sea at 170° W, Baffin Bay at 50° W, North Atlantic at 0° E, and central Siberia at 90° E. Summer (winter) is characterized by high moisture (energy) transport across 70° N. No clear trend in moisture transport was found, whereas the winter and spring energy transport are declining significantly at a rate of −7.31 × 105 W/m/a (99% confidence) and −6.04 × 105 W/m/a (95% confidence), respectively. Meanwhile, an increasing trend was found in summer (4.48 × 105 W/m/a, 95% confidence) and autumn (3.61 × 105 W/m/a, not significant). The relationship between atmospheric moisture and energy transport and different large-scale atmospheric circulation patterns, including the Arctic Oscillation (AO), North Atlantic Oscillation (NAO), and Dipole Anomaly (DA), was explored. Among them, DA was identified as the most favorable pattern in relation to moisture and/or energy intrusion into the Arctic. As a result, the surface air temperature increases are more pronounced over most of the central Arctic under the regulation of DA. Text Arctic Baffin Bay Baffin Bay Baffin Chukchi Chukchi Sea North Atlantic North Atlantic oscillation Siberia MDPI Open Access Publishing Arctic Chukchi Sea Baffin Bay Atmosphere 13 4 616 |
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Open Polar |
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MDPI Open Access Publishing |
op_collection_id |
ftmdpi |
language |
English |
topic |
moisture transport energy transport arctic |
spellingShingle |
moisture transport energy transport arctic Weifu Sun Yu Liang Haibo Bi Yujia Zhao Junmin Meng Jie Zhang Insight on Poleward Moisture and Energy Transport into the Arctic from ERA5 |
topic_facet |
moisture transport energy transport arctic |
description |
With the new-generation reanalysis product (ERA5), the spatiotemporal characteristics of poleward atmospheric moisture and energy transport over the past four decades (1979–2020) were examined. The main channels of atmospheric transport entering the Arctic in the Northern Hemisphere include the Chukchi Sea at 170° W, Baffin Bay at 50° W, North Atlantic at 0° E, and central Siberia at 90° E. Summer (winter) is characterized by high moisture (energy) transport across 70° N. No clear trend in moisture transport was found, whereas the winter and spring energy transport are declining significantly at a rate of −7.31 × 105 W/m/a (99% confidence) and −6.04 × 105 W/m/a (95% confidence), respectively. Meanwhile, an increasing trend was found in summer (4.48 × 105 W/m/a, 95% confidence) and autumn (3.61 × 105 W/m/a, not significant). The relationship between atmospheric moisture and energy transport and different large-scale atmospheric circulation patterns, including the Arctic Oscillation (AO), North Atlantic Oscillation (NAO), and Dipole Anomaly (DA), was explored. Among them, DA was identified as the most favorable pattern in relation to moisture and/or energy intrusion into the Arctic. As a result, the surface air temperature increases are more pronounced over most of the central Arctic under the regulation of DA. |
format |
Text |
author |
Weifu Sun Yu Liang Haibo Bi Yujia Zhao Junmin Meng Jie Zhang |
author_facet |
Weifu Sun Yu Liang Haibo Bi Yujia Zhao Junmin Meng Jie Zhang |
author_sort |
Weifu Sun |
title |
Insight on Poleward Moisture and Energy Transport into the Arctic from ERA5 |
title_short |
Insight on Poleward Moisture and Energy Transport into the Arctic from ERA5 |
title_full |
Insight on Poleward Moisture and Energy Transport into the Arctic from ERA5 |
title_fullStr |
Insight on Poleward Moisture and Energy Transport into the Arctic from ERA5 |
title_full_unstemmed |
Insight on Poleward Moisture and Energy Transport into the Arctic from ERA5 |
title_sort |
insight on poleward moisture and energy transport into the arctic from era5 |
publisher |
Multidisciplinary Digital Publishing Institute |
publishDate |
2022 |
url |
https://doi.org/10.3390/atmos13040616 |
op_coverage |
agris |
geographic |
Arctic Chukchi Sea Baffin Bay |
geographic_facet |
Arctic Chukchi Sea Baffin Bay |
genre |
Arctic Baffin Bay Baffin Bay Baffin Chukchi Chukchi Sea North Atlantic North Atlantic oscillation Siberia |
genre_facet |
Arctic Baffin Bay Baffin Bay Baffin Chukchi Chukchi Sea North Atlantic North Atlantic oscillation Siberia |
op_source |
Atmosphere; Volume 13; Issue 4; Pages: 616 |
op_relation |
Climatology https://dx.doi.org/10.3390/atmos13040616 |
op_rights |
https://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.3390/atmos13040616 |
container_title |
Atmosphere |
container_volume |
13 |
container_issue |
4 |
container_start_page |
616 |
_version_ |
1774713897350070272 |