...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >The Sensitivity of Tropical Rainfall Estimation From Satellite to the Configuration of the Microwave Imager Constellation
【24h】

The Sensitivity of Tropical Rainfall Estimation From Satellite to the Configuration of the Microwave Imager Constellation

机译：卫星对热带雨量估算对微波成像仪星座配置的敏感性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The availability of rainfall-related measurements from space has greatly increased from the late 1980s with the Defense Meteorological Satellite Program and the launch of the Tropical Rainfall Measuring Mission in 1997 to the forthcoming Global Precipitation Measurement (GPM) program (GPM mission) whose core satellite is to be launched in 2014. The rainfall observing systems have become a constellation enhancing the frequency of measurements all over the globe. In this letter, the Megha-Tropiques TAPEER-BRAIN level-4 rainfall product is considered to explore what impacts the configuration of a microwave imager constellation has on accumulated rainfall and associated sampling error estimates at one-degree/one-day resolution in the tropics. One of the main findings of this letter is that sun-synchronous satellites providing observations separated of time intervals close to rainfall autocorrelation periods result only in small improvements of TAPEER-BRAIN quantitative precipitation estimations (i.e., rain and error estimations). By comparison, it is shown that the GPM constellation of satellites, particularly with satellites on low-inclination “equatorial” orbits, has a high contribution to the improvements of rain and error estimates. The methodology developed in this letter could be also useful to explore the sensitivity of rainfall estimates at finer space and timescales.
机译：从1980年代后期开始，随着国防气象卫星计划和1997年热带雨量测量任务的启动，以及即将到来的全球降水量测量（GPM）计划（GPM任务）的开展，太空中与降雨相关的测量的可用性已大大增加。将于2014年推出。降雨观测系统已成为一个星座，可以提高全球的测量频率。在这封信中，考虑了Megha-Tropiques TAPEER-BRAIN 4级降雨产品，以探讨在热带地区以1度/天分辨率解决微波成像仪星座配置对累积降雨和相关采样误差估计的影响。这封信的主要发现之一是，太阳同步卫星提供的时间间隔与降雨自相关周期接近的观测分开，只会对TAPEER-BRAIN定量降水估算（即降雨和误差估算）产生很小的改善。通过比较，可以看出，卫星的GPM星座，特别是低倾角“赤道”轨道上的卫星，对改善降雨和误差估计有很大贡献。这封信中开发的方法对于探索更精细的空间和时间尺度上的降雨估计的敏感性也可能有用。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号