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| 雾灵山山基掩星观测反演误差分析 | |
| 引用本文： | 范磊,符养,杜晓勇,李黄.雾灵山山基掩星观测反演误差分析[J].武汉大学学报(信息科学版),2008,33(1):89-92. |
| 作者姓名： | 范磊 符养 杜晓勇 李黄 |
| 作者单位： | 1. 中国人民解放军总参谋部0526工程办公室,北京市大慧寺路18号,100081 2. 北京应用气象研究所,北京市民族园路8号,100029 3. 中国气象局,北京市中关村南大街46号,100081 |
| 摘 要： | 运用山基GPS掩星探测技术对2005年8月河北雾灵山山基GPS掩星观测试验数据进行了处理,获得了接收机高度以下的大气折射率廓线;分析了掩星反演结果的内部符合情况,并利用同时进行的联合探空观测数据,将探空结果与掩星反演结果进行了比对分析.分析结果表明,山基GPS掩星反演大气折射率的内部符合精度优于1%,与常规探空结果的平均偏差为5.9%.反演结果偏小,标准偏差为5.6%. |
| 关 键 词： | GPS 山基掩星观测 反演 大气折射率 误差分析 雾灵山 山基 掩星观测 反演 误差分析 Measurements GPS Occultation Error Analysis 标准 差为 常规探空 精度 比对分析 观测数据 利用 情况 结果 廓线 大气折射率 高度 |
| 文章编号： | 1671-8860（2008）01-0089-04 |
| 收稿时间： | 2007-10-05 |
| 修稿时间： | 2007年10月5日 |
Retrieval Error Analysis of Mountain-Based GPS Occultation Measurements on the Top of Mt.Wuling |
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| FAN Lei,FU Yang,DU Xiaoyong,LI Huang.Retrieval Error Analysis of Mountain-Based GPS Occultation Measurements on the Top of Mt.Wuling[J].Geomatics and Information Science of Wuhan University,2008,33(1):89-92. | |
| Authors: | FAN Lei FU Yang DU Xiaoyong LI Huang |
| Abstract: | Mountain-based GPS occultation experiment was performed on the top of Mt. Wuling near Beijing city from Aug. 1 to 29,2005 for the purpose of the test of refractivity retrieval technique. During the experiment, the radiosonde observation was taken at Xinglong County, SES the Mt. Wuling about 30 km. The state of arts of the mountain-based GPS occultation sounding at home and abroad are described, the inversion algorithm for mountain-based occultation is also discussed. The refractivity profiles below the mountain height are obtained by using Abel inversion method. The comparisons of the refractivity obtained from different GPS receivers are made. The differences between occultation refractivity and radiosonde data are obtained. Based on these analyses, we find that the interior accuracy of the retrieval results is better than 1%; the average deviation from the radiosonde data is 5.9%, the RMS is 5%. |
| Keywords: | GPS mountain-based occultation measurement inversion atmospheric refractivity error analysis |
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