Historical changes in Arctic moisture budget as simulated by CMIP6 individual forcing experiments
Master The past changes in atmospheric moisture transport over the Arctic are evaluated using CMIP6 multi-model simulations. To examine possible influences of external forcings, CMIP6 multi-model simulations performed under natural-plus-anthropogenic (ALL), greenhouse gas (GHG), natural (NAT), and a...
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포항공과대학교
2021
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ftponangunivst:oai:oasis.postech.ac.kr:2014.oak/112006 2023-05-15T14:35:30+02:00 Historical changes in Arctic moisture budget as simulated by CMIP6 individual forcing experiments CMIP6 개별 강제력 실험에 나타난 북극 수분 수지의 과거 변화 최화진 일반대학원 환경공학부 2021- 2 http://postech.dcollection.net/common/orgView/200000370784 https://oasis.postech.ac.kr/handle/2014.oak/112006 eng eng 포항공과대학교 OAK-2015-09201 http://postech.dcollection.net/common/orgView/200000370784 https://oasis.postech.ac.kr/handle/2014.oak/112006 Thesis 2021 ftponangunivst 2022-10-20T21:06:13Z Master The past changes in atmospheric moisture transport over the Arctic are evaluated using CMIP6 multi-model simulations. To examine possible influences of external forcings, CMIP6 multi-model simulations performed under natural-plus-anthropogenic (ALL), greenhouse gas (GHG), natural (NAT), and aerosol (AER) forcings are compared. Results indicate that Arctic precipitation and evaporation increase in ALL and GHG while they decrease in AER. In ALL and GHG simulations, Arctic precipitation increases in summer majorly due to enhanced poleward moisture transport whereas Arctic moistening during winter is affected more by increased surface evaporation over sea-ice retreat areas. In AER, Arctic precipitation tends to decrease due to reduced evaporation over sea-ice advance areas. The response of meridional moisture flux (MMF) is largely determined by variations in transient eddies (TE) with distinct seasonal contributions from different regions. In ALL, the contribution of the Pacific sector is dominant during summer, but the Atlantic sector becomes a main source during autumn. The summer increase of TE in ALL is greater than that of GHG, which is found to be partly due to the stronger contribution of the Atlantic sector in ALL. Thesis Arctic Sea ice Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) Arctic Pacific |
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Open Polar |
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Pohang University of Science and Technology (POSTECH): Open Access System for Information Sharing (OASIS) |
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ftponangunivst |
language |
English |
description |
Master The past changes in atmospheric moisture transport over the Arctic are evaluated using CMIP6 multi-model simulations. To examine possible influences of external forcings, CMIP6 multi-model simulations performed under natural-plus-anthropogenic (ALL), greenhouse gas (GHG), natural (NAT), and aerosol (AER) forcings are compared. Results indicate that Arctic precipitation and evaporation increase in ALL and GHG while they decrease in AER. In ALL and GHG simulations, Arctic precipitation increases in summer majorly due to enhanced poleward moisture transport whereas Arctic moistening during winter is affected more by increased surface evaporation over sea-ice retreat areas. In AER, Arctic precipitation tends to decrease due to reduced evaporation over sea-ice advance areas. The response of meridional moisture flux (MMF) is largely determined by variations in transient eddies (TE) with distinct seasonal contributions from different regions. In ALL, the contribution of the Pacific sector is dominant during summer, but the Atlantic sector becomes a main source during autumn. The summer increase of TE in ALL is greater than that of GHG, which is found to be partly due to the stronger contribution of the Atlantic sector in ALL. |
author2 |
일반대학원 환경공학부 |
format |
Thesis |
author |
최화진 |
spellingShingle |
최화진 Historical changes in Arctic moisture budget as simulated by CMIP6 individual forcing experiments |
author_facet |
최화진 |
author_sort |
최화진 |
title |
Historical changes in Arctic moisture budget as simulated by CMIP6 individual forcing experiments |
title_short |
Historical changes in Arctic moisture budget as simulated by CMIP6 individual forcing experiments |
title_full |
Historical changes in Arctic moisture budget as simulated by CMIP6 individual forcing experiments |
title_fullStr |
Historical changes in Arctic moisture budget as simulated by CMIP6 individual forcing experiments |
title_full_unstemmed |
Historical changes in Arctic moisture budget as simulated by CMIP6 individual forcing experiments |
title_sort |
historical changes in arctic moisture budget as simulated by cmip6 individual forcing experiments |
publisher |
포항공과대학교 |
publishDate |
2021 |
url |
http://postech.dcollection.net/common/orgView/200000370784 https://oasis.postech.ac.kr/handle/2014.oak/112006 |
geographic |
Arctic Pacific |
geographic_facet |
Arctic Pacific |
genre |
Arctic Sea ice |
genre_facet |
Arctic Sea ice |
op_relation |
OAK-2015-09201 http://postech.dcollection.net/common/orgView/200000370784 https://oasis.postech.ac.kr/handle/2014.oak/112006 |
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1766308315785068544 |