Temporal and spatial change in the relationship between sea-ice motion and wind in the Arctic
This paper examines the temporal and spatial change in the characteristics of sea-ice motion in the Arctic. Ice motion is generally expressed by a motion at a constant ratio (wind factor) of wind speed, with a certain angle (turning angle) from the wind direction, and ocean currents. This study aime...
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Norwegian Polar Institute
2020
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ftdoajarticles:oai:doaj.org/article:68e100b781ef42d5a9d60d8eb4a99cdc 2023-05-15T14:48:15+02:00 Temporal and spatial change in the relationship between sea-ice motion and wind in the Arctic Ken Maeda Noriaki Kimura Hajime Yamaguchi 2020-11-01T00:00:00Z https://doi.org/10.33265/polar.v39.3370 https://doaj.org/article/68e100b781ef42d5a9d60d8eb4a99cdc EN eng Norwegian Polar Institute https://polarresearch.net/index.php/polar/article/view/3370/11912 https://doaj.org/toc/1751-8369 1751-8369 doi:10.33265/polar.v39.3370 https://doaj.org/article/68e100b781ef42d5a9d60d8eb4a99cdc Polar Research, Vol 39, Iss 0, Pp 1-10 (2020) seasonal change interannual change wind factor Environmental sciences GE1-350 Oceanography GC1-1581 article 2020 ftdoajarticles https://doi.org/10.33265/polar.v39.3370 2022-12-31T15:12:18Z This paper examines the temporal and spatial change in the characteristics of sea-ice motion in the Arctic. Ice motion is generally expressed by a motion at a constant ratio (wind factor) of wind speed, with a certain angle (turning angle) from the wind direction, and ocean currents. This study aimed to reveal the recent changes of the wind factor and turning angle using satellite observation data. We first prepared a daily ice-velocity data set from data for 2003–2017 collected by the satellite microwave sensor Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E) and its successor, AMSR2. Monthly values of the wind factor and turning angle were calculated by a least squares technique, based on the linear relationship between sea-ice velocity and geostrophic wind velocity. The daily variation of sea-ice motion was strongly correlated with that of the wind. The wind factor and turning angle changed regionally, seasonally and interannually. With regard to long-term trends, the wind factor has increased in almost all areas of the Arctic. However, the trend of increase stopped around 2010, especially around the central Arctic. Article in Journal/Newspaper Arctic Polar Research Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Polar Research 39 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
seasonal change interannual change wind factor Environmental sciences GE1-350 Oceanography GC1-1581 |
spellingShingle |
seasonal change interannual change wind factor Environmental sciences GE1-350 Oceanography GC1-1581 Ken Maeda Noriaki Kimura Hajime Yamaguchi Temporal and spatial change in the relationship between sea-ice motion and wind in the Arctic |
topic_facet |
seasonal change interannual change wind factor Environmental sciences GE1-350 Oceanography GC1-1581 |
description |
This paper examines the temporal and spatial change in the characteristics of sea-ice motion in the Arctic. Ice motion is generally expressed by a motion at a constant ratio (wind factor) of wind speed, with a certain angle (turning angle) from the wind direction, and ocean currents. This study aimed to reveal the recent changes of the wind factor and turning angle using satellite observation data. We first prepared a daily ice-velocity data set from data for 2003–2017 collected by the satellite microwave sensor Advanced Microwave Scanning Radiometer for the Earth Observing System (AMSR-E) and its successor, AMSR2. Monthly values of the wind factor and turning angle were calculated by a least squares technique, based on the linear relationship between sea-ice velocity and geostrophic wind velocity. The daily variation of sea-ice motion was strongly correlated with that of the wind. The wind factor and turning angle changed regionally, seasonally and interannually. With regard to long-term trends, the wind factor has increased in almost all areas of the Arctic. However, the trend of increase stopped around 2010, especially around the central Arctic. |
format |
Article in Journal/Newspaper |
author |
Ken Maeda Noriaki Kimura Hajime Yamaguchi |
author_facet |
Ken Maeda Noriaki Kimura Hajime Yamaguchi |
author_sort |
Ken Maeda |
title |
Temporal and spatial change in the relationship between sea-ice motion and wind in the Arctic |
title_short |
Temporal and spatial change in the relationship between sea-ice motion and wind in the Arctic |
title_full |
Temporal and spatial change in the relationship between sea-ice motion and wind in the Arctic |
title_fullStr |
Temporal and spatial change in the relationship between sea-ice motion and wind in the Arctic |
title_full_unstemmed |
Temporal and spatial change in the relationship between sea-ice motion and wind in the Arctic |
title_sort |
temporal and spatial change in the relationship between sea-ice motion and wind in the arctic |
publisher |
Norwegian Polar Institute |
publishDate |
2020 |
url |
https://doi.org/10.33265/polar.v39.3370 https://doaj.org/article/68e100b781ef42d5a9d60d8eb4a99cdc |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic Polar Research Sea ice |
genre_facet |
Arctic Polar Research Sea ice |
op_source |
Polar Research, Vol 39, Iss 0, Pp 1-10 (2020) |
op_relation |
https://polarresearch.net/index.php/polar/article/view/3370/11912 https://doaj.org/toc/1751-8369 1751-8369 doi:10.33265/polar.v39.3370 https://doaj.org/article/68e100b781ef42d5a9d60d8eb4a99cdc |
op_doi |
https://doi.org/10.33265/polar.v39.3370 |
container_title |
Polar Research |
container_volume |
39 |
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1766319336137424896 |