Tropical Rainfall Measuring Mission

This website has been superseded by gpm.nasa.gov as of Dec. 2018 and is being kept online for archival purposes. TRMM is a research satellite designed to improve our understanding of the distribution and variability of precipitation within the tropics as part of the water cycle in the current climate system. By covering the tropical and sub-tropical regions of the Earth, TRMM provides much needed information on rainfall and its associated heat release that helps to power the global atmospheric circulation that shapes both weather and climate. In coordination with other satellites in NASA's Earth Observing System, TRMM provides important precipitation information using several space-borne instruments to increase our understanding of the interactions between water vapor, clouds, and precipitation, that are central to regulating Earth's climate. The TRMM mission ended in 2015 and final TRMM multi-satellite precipitation analyses (TMPA, product 3B42/3B43) data processing will end December 31st, 2019. As a result, this TRMM webpage is in the process of being retired and some TRMM imagery may not be displaying correctly. Some of the content will be moved to the Precipitation Measurement Missions website https://gpm.nasa.gov/ and our team is exploring ways to provide some of the real-time products using GPM data. Please contact us if you have any additional questions.

自2018年12月起，本网站已被NASA的gpm.nasa.gov所取代，但出于存档目的，网站仍保留在线。TRMM（热带降雨测量卫星）是一项旨在通过当前气候系统中的水循环，增进我们对热带降水分布及其变率的了解的研究卫星。通过覆盖地球的赤道和亚热带地区，TRMM提供了关于降水的必要信息及其相关的热量释放，这些信息有助于推动全球大气环流，进而塑造天气和气候。与NASA地球观测系统中的其他卫星协同工作，TRMM利用多台搭载于太空的仪器提供了重要的降水信息，从而加深我们对水汽、云和降水之间相互作用的理解，这些相互作用对于调节地球气候至关重要。TRMM任务于2015年结束，最终的多卫星降水分析（TMPA，产品3B42/3B43）数据处理将于2019年12月31日结束。因此，本TRMM网页正在逐步退役，部分TRMM影像可能无法正确显示。部分内容将被迁移至降水测量任务网站https://gpm.nasa.gov/，我们团队正在探索使用GPM数据提供一些实时产品的途径。如有任何额外问题，请与我们联系。