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...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Atmosphere |
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| Online Access: | https://www.mdpi.com/2073-4433/13/4/616 |
| _version_ | 1797436939375214592 |
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| 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 |
| collection | DOAJ |
| 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 × 10<sup>5</sup> W/m/a (99% confidence) and −6.04 × 10<sup>5</sup> W/m/a (95% confidence), respectively. Meanwhile, an increasing trend was found in summer (4.48 × 10<sup>5</sup> W/m/a, 95% confidence) and autumn (3.61 × 10<sup>5</sup> 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. |
| first_indexed | 2024-03-09T11:09:50Z |
| format | Article |
| id | doaj.art-29f4456fc76b4f788c4e54d42355177c |
| institution | Directory Open Access Journal |
| issn | 2073-4433 |
| language | English |
| last_indexed | 2024-03-09T11:09:50Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Atmosphere |
| spelling | doaj.art-29f4456fc76b4f788c4e54d42355177c2023-12-01T00:47:32ZengMDPI AGAtmosphere2073-44332022-04-0113461610.3390/atmos13040616Insight on Poleward Moisture and Energy Transport into the Arctic from ERA5Weifu Sun0Yu Liang1Haibo Bi2Yujia Zhao3Junmin Meng4Jie Zhang5First Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, ChinaCenter for Ocean Mega-Science & Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaCenter for Ocean Mega-Science & Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, ChinaCollege of Marine and Information Space, China University of Petroleum (East China), Qingdao 266580, ChinaFirst Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, ChinaFirst Institute of Oceanography, Ministry of Natural Resources, Qingdao 266061, ChinaWith 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 × 10<sup>5</sup> W/m/a (99% confidence) and −6.04 × 10<sup>5</sup> W/m/a (95% confidence), respectively. Meanwhile, an increasing trend was found in summer (4.48 × 10<sup>5</sup> W/m/a, 95% confidence) and autumn (3.61 × 10<sup>5</sup> 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.https://www.mdpi.com/2073-4433/13/4/616moisture transportenergy transportarctic |
| spellingShingle | Weifu Sun Yu Liang Haibo Bi Yujia Zhao Junmin Meng Jie Zhang Insight on Poleward Moisture and Energy Transport into the Arctic from ERA5 Atmosphere moisture transport energy transport arctic |
| title | 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_short | 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 |
| topic | moisture transport energy transport arctic |
| url | https://www.mdpi.com/2073-4433/13/4/616 |
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