New Horizons in Occultation Research

New Horizons in Occultation Research
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掩星研究的新视野

DOI：
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发表时间：
2009
期刊：
影响因子：
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通讯作者：
G. Kirchengast
G. Kirchengast
中科院分区：
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文献类型：
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作者：
A. Steiner;B. Pirscher;U. Foelsche;G. Kirchengast

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2006年和2007年，若干全球定位系统无线电掩星（RO）任务（GRACE-A（重力和气候实验）、FORMOSAT-3/COSMIC（福尔摩沙卫星使命-3/气象、电离层和气候星座观测系统）和MetOp）开始提供数据。再加上CHAMP（CHAllenging Minisatellite Payload，自2001年以来）和最近发射的TerraSAR-X（2007年6月15日）的测量结果，一个用于精确的基于GPS的大气探测的多卫星星座成为现实。SAC-C（Satelite de Aplicaciones Scientificas-C）的测量数据补充了数据库。我们的贡献简要回顾了目前GFZ在处理和应用来自不同卫星的GPS RO数据方面的活动。这些活动包括精确的卫星轨道确定和在测量后2小时内向天气预报中心提供近实时分析结果。现有的卫星数据被用于全球重力波特征的气候学研究。
Several GPS Radio Occultation (RO) missions (GRACE-A (GRavity And Climate Experiment), FORMOSAT-3/COSMIC (FORMOsa SATellite mission-3/Constellation Observing System for Meteorology, Ionosphere, and Climate), and MetOp) started data provision in 2006 and 2007. Together with the measurements from CHAMP (CHAllenging Minisatellite Payload, since 2001) and the recently launched (June 15, 2007) TerraSAR-X an operational multi-satellite constellation for precise GPS based atmospheric sounding became reality. The data base is supplemented by measurements from SAC-C (Satelite de Aplicaciones Cientificas-C). Our contribution briefly reviews current GFZ activities regarding processing and application of GPS RO data from different satellites. These activities include precise satellite orbit determination and the provision of near-real time analysis results for weather forecast centers within 2 h after measurement. Available satellite data are used for climatological investigations of global gravity wave characteristics.