Seasonal variation of moisture transport in polar regions and the relation with annular modes
Climatological seasonal variations of moisture transport and the interannual variations associated with the annular modes in the Arctic and Antarctic regions are investigated using 15-year ECMWF reanalysis data. Over the Arctic, there are strong moisture inflows from the Atlantic and Pacific in all...
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Graduate School of Environmental Earth Science, Hokkaido University/Graduate School of Environmental Earth Science, Hokkaido University
2004
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ftnipr:oai:nipr.repo.nii.ac.jp:00002971 2023-05-15T13:24:06+02:00 Seasonal variation of moisture transport in polar regions and the relation with annular modes Oshima,Kazuhiro Yamazaki,Koji 2004-11 https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2971 http://id.nii.ac.jp/1291/00002971/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2971&item_no=1&attribute_id=18&file_no=1 en eng Graduate School of Environmental Earth Science, Hokkaido University/Graduate School of Environmental Earth Science, Hokkaido University National Institute of Polar Research https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2971 http://id.nii.ac.jp/1291/00002971/ AA1129795X Polar meteorology and glaciology, 18, 30-53(2004-11) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2971&item_no=1&attribute_id=18&file_no=1 atmospheric moisture budget polar regions annular mode reanalysis data Departmental Bulletin Paper P(論文) 2004 ftnipr 2022-11-26T19:42:23Z Climatological seasonal variations of moisture transport and the interannual variations associated with the annular modes in the Arctic and Antarctic regions are investigated using 15-year ECMWF reanalysis data. Over the Arctic, there are strong moisture inflows from the Atlantic and Pacific in all seasons. Over the Antarctic, a strong moisture inflow exists around the Antarctic Peninsula in all seasons and another strong inflow exists over the Bellingshausen Sea and the Amundsen Sea in austral autumn and winter. Transient moisture flux is dominant over stationary flux and transient flux variation mainly controls the seasonal variation of precipitation minus evaporation(P-E) in both regions. The seasonal variations of P-E show a summer maximum in the Arctic and a winter maximum in the Antarctic. It is mainly governed by the seasonal variation of precipitable water variation in the Arctic and transient eddy activity in the Antarctic. The zonal mean poleward and eastward moisture fluxes in high latitudes are positively correlated with annular modes in both regions. Positive polarity of the Arctic Oscillation is associated with enhanced moisture inflow from the Atlantic, while positive polarity of the Antarctic Oscillation is associated with enhanced moisture inflow west of the Antarctic Peninsula. Report Amundsen Sea Antarc* Antarctic Antarctic Peninsula Arctic Bellingshausen Sea Polar meteorology and glaciology National Institute of Polar Research Repository, Japan Arctic Antarctic The Antarctic Antarctic Peninsula Austral Amundsen Sea Bellingshausen Sea Pacific |
institution |
Open Polar |
collection |
National Institute of Polar Research Repository, Japan |
op_collection_id |
ftnipr |
language |
English |
topic |
atmospheric moisture budget polar regions annular mode reanalysis data |
spellingShingle |
atmospheric moisture budget polar regions annular mode reanalysis data Oshima,Kazuhiro Yamazaki,Koji Seasonal variation of moisture transport in polar regions and the relation with annular modes |
topic_facet |
atmospheric moisture budget polar regions annular mode reanalysis data |
description |
Climatological seasonal variations of moisture transport and the interannual variations associated with the annular modes in the Arctic and Antarctic regions are investigated using 15-year ECMWF reanalysis data. Over the Arctic, there are strong moisture inflows from the Atlantic and Pacific in all seasons. Over the Antarctic, a strong moisture inflow exists around the Antarctic Peninsula in all seasons and another strong inflow exists over the Bellingshausen Sea and the Amundsen Sea in austral autumn and winter. Transient moisture flux is dominant over stationary flux and transient flux variation mainly controls the seasonal variation of precipitation minus evaporation(P-E) in both regions. The seasonal variations of P-E show a summer maximum in the Arctic and a winter maximum in the Antarctic. It is mainly governed by the seasonal variation of precipitable water variation in the Arctic and transient eddy activity in the Antarctic. The zonal mean poleward and eastward moisture fluxes in high latitudes are positively correlated with annular modes in both regions. Positive polarity of the Arctic Oscillation is associated with enhanced moisture inflow from the Atlantic, while positive polarity of the Antarctic Oscillation is associated with enhanced moisture inflow west of the Antarctic Peninsula. |
format |
Report |
author |
Oshima,Kazuhiro Yamazaki,Koji |
author_facet |
Oshima,Kazuhiro Yamazaki,Koji |
author_sort |
Oshima,Kazuhiro |
title |
Seasonal variation of moisture transport in polar regions and the relation with annular modes |
title_short |
Seasonal variation of moisture transport in polar regions and the relation with annular modes |
title_full |
Seasonal variation of moisture transport in polar regions and the relation with annular modes |
title_fullStr |
Seasonal variation of moisture transport in polar regions and the relation with annular modes |
title_full_unstemmed |
Seasonal variation of moisture transport in polar regions and the relation with annular modes |
title_sort |
seasonal variation of moisture transport in polar regions and the relation with annular modes |
publisher |
Graduate School of Environmental Earth Science, Hokkaido University/Graduate School of Environmental Earth Science, Hokkaido University |
publishDate |
2004 |
url |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2971 http://id.nii.ac.jp/1291/00002971/ https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2971&item_no=1&attribute_id=18&file_no=1 |
geographic |
Arctic Antarctic The Antarctic Antarctic Peninsula Austral Amundsen Sea Bellingshausen Sea Pacific |
geographic_facet |
Arctic Antarctic The Antarctic Antarctic Peninsula Austral Amundsen Sea Bellingshausen Sea Pacific |
genre |
Amundsen Sea Antarc* Antarctic Antarctic Peninsula Arctic Bellingshausen Sea Polar meteorology and glaciology |
genre_facet |
Amundsen Sea Antarc* Antarctic Antarctic Peninsula Arctic Bellingshausen Sea Polar meteorology and glaciology |
op_relation |
https://nipr.repo.nii.ac.jp/?action=repository_uri&item_id=2971 http://id.nii.ac.jp/1291/00002971/ AA1129795X Polar meteorology and glaciology, 18, 30-53(2004-11) https://nipr.repo.nii.ac.jp/?action=repository_action_common_download&item_id=2971&item_no=1&attribute_id=18&file_no=1 |
_version_ |
1766377423624994816 |