全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
大气科学  2006 

利用GPS的倾斜路径观测暴雨过程中的水汽空间分布

DOI: 10.3878/j.issn.1006-9895.2006.06.11

Keywords: 全球定位系统,遥感,倾斜路径,水汽

Full-Text   Cite this paper   Add to My Lib

Abstract:

介绍了地基全球定位系统(GPS)沿倾斜路径方向观测水汽总量(SWV)的原理和方法;不同时间和不同地点的GPSSWV与微波辐射计反演的SWV符合较好,误差在3mm左右,表明GPS可以较高的精度探测SWV.计算了区域GPS观测网在一次暴雨过程中不同空间方位上的水汽观测结果,为消除不同路径对SWV的影响,把SWV转化为天顶方向的值VSWV;分析了同一GPS站点对不同卫星方向VSWV的变化情况,以及不同GPS站点对同一个卫星方向VSWV的关系.结果表明,区域GPS观测网中倾斜路径观测可较好地探测不同方位上水汽的分布和变化;SWV相对于天顶方向的大气水汽总量PW而言,能更好地代表真实大气水汽分布;在探空或卫星观测等传统观测手段无法探测的情况下,GPSSWV数据可提供中小尺度暴雨结构中水汽分布和变化状况等有用信息.

References

[1]  Braun J,Rocken C,Liljegren J.Comparisons of line-of-sight water vapor observations using the Global Positioning System and a pointing microwave radiometer.J.Atmos.Oceanic Technol.,2003,20:606~612
[2]  Duan J,Bevis M.GPS meteorology:direct estimation of the absolute value of precipitable water.J.Appl.Meteor.,1996,35:830~838
[3]  Li Chengcai,Mao Jietai,Li Jianguo.GPS remote sensing of total water vapor amount.Chinese Science Bulletin,1999,3:333~336
[4]  李成才,毛节泰.地基GPS遥感大气水汽总量中的 "静力延迟" 和 "湿延迟".大气科学,2004,28 (5):795~800 Li Chengcai,Mao Jietai.The concepts of hydrostatic delay and wet delay in remote sensing water vapor with ground based GPS receivers.Chinese Journal of Atmospheric Sciences (in Chinese),2004,28 (5):795~800
[5]  Bevis M,Businger S,Herring T A,et al.GPS meteorology:remote sensing of atmospheric water vapor using the global positioning system.J.Geophys.Res.,1992,97:15787~15801
[6]  Ware R,Alber C,Rocken C,et al.Sensing integrated water vapor along GPS ray paths.Geophys.Res.Lett.,1997,24:417~420
[7]  Alber C,Ware R,Rocken C,et al.Obtaining single path phase delays from GPS double differences.Geophys.Res.Lett.,2000,27:2661~2664
[8]  Braun J,Rocken C,Ware R.Validation of line-of-sight water vapor measurements with GPS.Radio Sci.,2001,36:459~472
[9]  Seko H,Nakamura H,Shoji Y,et al.The meso-γ scale water vapor distribution associated with a thunderstorm calculated from a dense network of GPS receivers.J.Meteor.Soc.Japan,2004,82 (1B):569~586
[10]  Guo Y R,Kuo Y H,Dudhia J,et al.Four-dimensional variational data assimilation of heterogeneous mesoscale observations for a strong convective case.Mon.Wea.Rev.,2000,128:619~643
[11]  Wolfe D E,Gutman S I.Developing an operational,surface based,GPS,water vapor observing system for NOAA:Network design and results.J.Atmos.Oceanic Technol.,2000,17:426~440
[12]  毕研盟,毛节泰,刘晓阳,等.应用地基GPS遥感倾斜路径方向大气水汽总量.地球物理学报,2006,49 (2):335~342 Bi Y M,Mao J T,Liu X Y.Remote sensing of the amount of water vapor along the slant path using the ground-based GPS.Chinese J.Geophys.(in Chinese),2006,49 (2):335~342
[13]  Flores A,de Arellano J V G,Gradinarsky L P.Tomography of the lower troposphere using a small dense network of GPS receivers.IEEE Trans.Geosci.Remote Sens.,2001,39 (2):439~447
[14]  King R W,Bock Y.Documentation for GAMIT GPS processing software,Release 10.2.Mass.Inst.of Technol.,Cambridge,MA,2005
[15]  Niell A E.Global mapping functions for the atmosphere delay at radio wavelengths.J.Geophys.Res.,1996,101 (b2):3227~3246
[16]  陶祖钰,葛国庆,郑永光,等.2004年7月北京和上海两次重大气象事件的异同及其科学问题.气象学报,2004,62 (6):882~887 Tao Zuyu,Ge Guoqing,Zheng Yongguang,et al.Similarities and difference between two disastrous weather events occurred in Beijing and Shanghai July 2004 and the aroused scientific problems (primary research report).Acta Meteorologica Sinica(in Chinese),2004,62 (6):882~887
[17]  Ware R H,Fulker D W,Stein S A.SuomiNet:a real-time national GPS network for atmospheric research and education.Bulletin of the American Meteorological Society,2000,81 (4):677~694

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133