Simultaneous optical and radar observations of poleward moving auroral forms under different IMF conditions
Using high temporal resolution optical data obtained from three-wavelength all-sky imagers at Chinese Yellow River Station in the Arctic, together with the EISCAT Svalbard radar (ESR) and SuperDARN radars, we investigated the dayside poleward moving auroral forms (PMAFs) and the associated plasma fe...
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Polar Research Institute of China - PRIC
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ftarcticportal:oai:generic.eprints.org:2467 2023-10-25T01:28:13+02:00 Simultaneous optical and radar observations of poleward moving auroral forms under different IMF conditions Zanyang, Xing Huigen, Yang Desheng, Han Zhensen, Wu Junming, Liu Zejun, Hu Qinghe, Zhang Yonghua, Liu Beichen, Zhang Hongqiao, Hu 2012-12 application/pdf http://library.arcticportal.org/2467/ http://library.arcticportal.org/2467/1/A20120403.pdf en eng Polar Research Institute of China - PRIC http://library.arcticportal.org/2467/1/A20120403.pdf Zanyang, Xing and Huigen, Yang and Desheng, Han and Zhensen, Wu and Junming, Liu and Zejun, Hu and Qinghe, Zhang and Yonghua, Liu and Beichen, Zhang and Hongqiao, Hu (2012) Simultaneous optical and radar observations of poleward moving auroral forms under different IMF conditions. Advances in Polar Science, 23 (4). pp. 204-210. Atmosphere Space Article PeerReviewed 2012 ftarcticportal 2023-09-27T22:54:11Z Using high temporal resolution optical data obtained from three-wavelength all-sky imagers at Chinese Yellow River Station in the Arctic, together with the EISCAT Svalbard radar (ESR) and SuperDARN radars, we investigated the dayside poleward moving auroral forms (PMAFs) and the associated plasma features in the polar ionosphere under different interplanetary magnetic field (IMF) conditions, between 0900 and 1010 UT on 22 December 2003. Simultaneous optical and ESR observations revealed that all PMAFs were clearly associated with pulsed particle precipitations. During northward IMF, particles can precipitate into lower altitudes and reach the ionospheric E-region, and there is a reverse convection cell associated with these PMAFs. This cell is one of the typical signatures of the dayside high-latitude (lobe) reconnection in the polar ionosphere. These results indicate that the PMAFs were associated with the high-latitude reconnection. During southward IMF, the PMAFs show larger latitudinal motion, indicating a longer mean lifetime, and the associated ionospheric features indicate that the PMAFs were generated by the dayside low-latitude reconnection. Article in Journal/Newspaper Advances in Polar Science Arctic EISCAT Polar Science Polar Science Svalbard Arctic Portal Library Arctic Svalbard |
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Open Polar |
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Arctic Portal Library |
op_collection_id |
ftarcticportal |
language |
English |
topic |
Atmosphere Space |
spellingShingle |
Atmosphere Space Zanyang, Xing Huigen, Yang Desheng, Han Zhensen, Wu Junming, Liu Zejun, Hu Qinghe, Zhang Yonghua, Liu Beichen, Zhang Hongqiao, Hu Simultaneous optical and radar observations of poleward moving auroral forms under different IMF conditions |
topic_facet |
Atmosphere Space |
description |
Using high temporal resolution optical data obtained from three-wavelength all-sky imagers at Chinese Yellow River Station in the Arctic, together with the EISCAT Svalbard radar (ESR) and SuperDARN radars, we investigated the dayside poleward moving auroral forms (PMAFs) and the associated plasma features in the polar ionosphere under different interplanetary magnetic field (IMF) conditions, between 0900 and 1010 UT on 22 December 2003. Simultaneous optical and ESR observations revealed that all PMAFs were clearly associated with pulsed particle precipitations. During northward IMF, particles can precipitate into lower altitudes and reach the ionospheric E-region, and there is a reverse convection cell associated with these PMAFs. This cell is one of the typical signatures of the dayside high-latitude (lobe) reconnection in the polar ionosphere. These results indicate that the PMAFs were associated with the high-latitude reconnection. During southward IMF, the PMAFs show larger latitudinal motion, indicating a longer mean lifetime, and the associated ionospheric features indicate that the PMAFs were generated by the dayside low-latitude reconnection. |
format |
Article in Journal/Newspaper |
author |
Zanyang, Xing Huigen, Yang Desheng, Han Zhensen, Wu Junming, Liu Zejun, Hu Qinghe, Zhang Yonghua, Liu Beichen, Zhang Hongqiao, Hu |
author_facet |
Zanyang, Xing Huigen, Yang Desheng, Han Zhensen, Wu Junming, Liu Zejun, Hu Qinghe, Zhang Yonghua, Liu Beichen, Zhang Hongqiao, Hu |
author_sort |
Zanyang, Xing |
title |
Simultaneous optical and radar observations of poleward moving auroral forms under different IMF conditions |
title_short |
Simultaneous optical and radar observations of poleward moving auroral forms under different IMF conditions |
title_full |
Simultaneous optical and radar observations of poleward moving auroral forms under different IMF conditions |
title_fullStr |
Simultaneous optical and radar observations of poleward moving auroral forms under different IMF conditions |
title_full_unstemmed |
Simultaneous optical and radar observations of poleward moving auroral forms under different IMF conditions |
title_sort |
simultaneous optical and radar observations of poleward moving auroral forms under different imf conditions |
publisher |
Polar Research Institute of China - PRIC |
publishDate |
2012 |
url |
http://library.arcticportal.org/2467/ http://library.arcticportal.org/2467/1/A20120403.pdf |
geographic |
Arctic Svalbard |
geographic_facet |
Arctic Svalbard |
genre |
Advances in Polar Science Arctic EISCAT Polar Science Polar Science Svalbard |
genre_facet |
Advances in Polar Science Arctic EISCAT Polar Science Polar Science Svalbard |
op_relation |
http://library.arcticportal.org/2467/1/A20120403.pdf Zanyang, Xing and Huigen, Yang and Desheng, Han and Zhensen, Wu and Junming, Liu and Zejun, Hu and Qinghe, Zhang and Yonghua, Liu and Beichen, Zhang and Hongqiao, Hu (2012) Simultaneous optical and radar observations of poleward moving auroral forms under different IMF conditions. Advances in Polar Science, 23 (4). pp. 204-210. |
_version_ |
1780734666519609344 |