| A Comparison of SuperDARN-Derived Plasma Convection and DMSP Ion Drift Measurements |
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| 作者姓名： | XU Liang XU Jisheng Koustov Alexandre Papitashvili Vladimir Rich Fedrich |
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| 作者单位： | [1]School of Electronic Information, Wuhan University, Wuhan 430072, Hubei, China [2]Institute of Space and Atmospheric Studies, University of Saskatchewan, Saskatoon S7N 5E2, Saskatchewan, Canada [3]Space Physics Research Laboratory, University of Michigan, Ann Arbor 48109, Michigan, U.S.A. [4]Air Force Research Laboratory, Hanscom Air Force Base 01731, Massachusetts, U.S.A. |
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| 基金项目： | Supported by the National Natural Science Foundation of China （40504019） and 0pen Fund Granted by the Key Laboratory （L0GEG） of Chinese Ministry of Education |
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| 摘 要： | Recently several studies indicated possible deterioration of accuracy in the SuperDARN convection measurements at large distances （〉2 500 km）. In this study, the SuperDARN-derived convection was compared with ion drift measurements given by the DMSP satellites, focused on SuperDARN far-range measurements, to investigate the above-mentioned problem. Two different procedures of SuperDARN convection estimation were applied. An overall reasonable agreement between two observation systems were found though individual points in some passes show significant differences. Besides, a tendency is also clear that the SuperDARN-derived velocities were slightly smaller than those of DMSP ion drift measurements. Potential factors contributing to the velocity differences were explained.
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| 关 键 词： | 电离层 等离子体对流 SuperDARN雷达测量 DMSP卫星观测 比较研究 |
| 文章编号： | 1007-1202（2007）02-0279-05 |
| 收稿时间： | 2006-04-06 |
A comparison of SuperDARN-derived plasma convection and DMSP ion drift measurements |
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| XU Liang XU Jisheng Koustov Alexandre Papitashvili Vladimir Rich Fedrich.A Comparison of SuperDARN-Derived Plasma Convection and DMSP Ion Drift Measurements[J].Wuhan University Journal of Natural Sciences,2007,12(2):279-283. |
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| Authors: | Xu Liang Xu Jisheng Koustov Alexandre Papitashvili Vladimir Rich Fedrich |
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| Institution: | (1) School of Electronic Information, Wuhan University, Wuhan, 430072, Hubei, China;(2) Institute of Space and Atmospheric Studies, University of Saskatchewan, Saskatoon, S7N 5E2, Saskatchewan, Canada;(3) Space Physics Research Laboratory, University of Michigan, Ann Arbor, Michigan 48109, USA;(4) Air Force Research Laboratory, Hanscom Air Force Base, Massachusetts 01731, USA |
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| Abstract: | Recently several studies indicated possible deterioration of accuracy in the SuperDARN convection measurements at large distances (>2 500 km). In this study, the SuperDARN-derived convection was compared with ion drift measurements given by the DMSP satellites, focused on SuperDARN far-range measurements, to investigate the above-mentioned problem. Two different procedures of SuperDARN convection estimation were applied. An overall reasonable agreement between two observation systems were found though individual points in some passes show significant differences. Besides, a tendency is also clear that the SuperDARN-derived velocities were slightly smaller than those of DMSP ion drift measurements. Potential factors contributing to the velocity differences were explained. |
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| Keywords: | ionosphere plasma convection ion drift SuperDARN |
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