山基GPS掩星与自动气象站观测结果比较
文献类型：期刊论文
| 作者 | 宫晓艳 ; 胡雄 ; 吴小成 |
| 刊名 | 地球物理学进展
 |
| 出版日期 | 2008 |
| 卷号 | 23期号:5页码:1480-1486 |
| 关键词 | 山基GPS掩星 自动气象站 大气折射指数 比较 |
| ISSN号 | 1004-2903 |
| 其他题名 | Comparison between mountain2based GPS occultationobservations and results from automatic weather station |
| 通讯作者 | 北京8701信箱 |
| 中文摘要 | 山基GPS掩星技术可以精确获得低层大气折射率信息,其观测原理是：在高山的山顶安装GPS接收机,跟踪GPS卫星的低仰角和负仰角信号,通过载波相位的变化求出大气折射造成的弯曲角剖面,从而利用科学反演方法获得观测点高度以下的大气折射率剖面.为了对山基掩星测量数据进行验证,2005年8月1日-29日,在河北雾灵山（40.60°N,117.48°E,2118m）开展了为期一个月的山基GPS掩星观测与其他探测的对比实验.实验所用的JAVAD双频GPS接收机共工作576小时,接收机朝南观测,记录到山基掩星事件1136次,其中上升掩星621次,下降掩星515次.实验期间,在雾灵山顶利用自动气象观测仪每天24小时观测当地的温度、湿度和气压,由此可计算大气折射率.本文利用雾灵山GPS掩星实验所获得的观测数据,成功反演得到大气折射率剖面,并将所得接收机高度的折射率与雾灵山顶自动气象站观测结果进行比对,分析结果表明：山基GPS掩星和自动气象站观测结果是一致的.山基GPS掩星观测可为低层大气环境监测提供大量数据,具有潜在的应用前景. |
| 英文摘要 | Mountain2based GPS occultation technique can measure the profile of the lower atmospheric ref ractivity ex2 actly , it s observation theory is to install the GPS receiver at the top of high mountain and receive the radio signals of GPS satellites with very low elevations and negative elevations , and we can obtain the profile of the bending angle due to atmospheric ref raction through the change of carrier wave’s phase , then the ref ractivity profile below the altitude in which the receiver is located can be ret rieved by using some inversion method. An mountain2based GPS occultation observation experiment of one month was performed at Mt . WuLing (40. 60°N , 117. 48°E , 2118m) in HeBei province during August 1～29 , 2005. The JAVAD receiver we used has worked for about 576 hour , and the JAVAD receiver is installed towards south. Totally 1136 occultation event s were recorded. Out of the total occultation event s , 621 e2 vent s are rising occultation event s and 515 event s are setting occultation event s. During the experiment , the automatic weather station at the top of Mt . WuLing can observe the local temperature , humidity and pressure all day , f rom which we can calculate the atmospheric ref ractivity. In this paper , we ret rieved the atmospheric ref ractivity success2 fully using the observation data of mountain2based GPS occultation observation experiment at Mt . WuLing , and then compared the ref ractivity of the altitude in which the receiver is located with the result of automatic weather station. The result illust rates a good agreement in mountain2based GPS occultation and automatic weather station. Mountain2 based occultation observations provide a lot of ref ractivity data for monitoring lower atmospheric environment . This novel technique has potential applications. |
| 学科主题 | 空间环境 |
| 收录类别 | CSCD |
| 资助信息 | 自然科学基金,中国科学院知识创新方向性项目,863 航天高科技领域课题和中国气象局科技发展司社会公益项目联合资助. |
| 语种 | 中文 |
| CSCD记录号 | CSCD:3451443 |
| 源URL | [http://ir.cssar.ac.cn/handle/122/442]  |
| 专题 | 国家空间科学中心_空间环境部 |
| 推荐引用方式 GB/T 7714 | 宫晓艳,胡雄,吴小成. 山基GPS掩星与自动气象站观测结果比较[J]. 地球物理学进展,2008,23(5):1480-1486. |
| APA | 宫晓艳,胡雄,&吴小成.(2008).山基GPS掩星与自动气象站观测结果比较.地球物理学进展,23(5),1480-1486. |
| MLA | 宫晓艳,et al."山基GPS掩星与自动气象站观测结果比较".地球物理学进展 23.5(2008):1480-1486. |
入库方式： OAI收割
来源：国家空间科学中心
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