The probe's primary sensor, the precipitation radar, was switched off for the final time April 1, 2015 and the final scientific sensor, LIS, was turned off on April 8, 2015. Tropical precipitation is a difficult parameter to measure, due to large spatial and temporal variations. (1997a,b) combined TRMM Microwave Imager (TMI) – Precipitation Radar (PR) estimates (TRMM product 2B31). TRMM was a research satellite in operation from 1997 to 2015, 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. The GPM satellites consist of a TRMM-type primary satellite that carries a radar and a microwave radiometer and a fleet of constellation satellites that carry microwave radiometers. The Tropical Rainfall Measuring Mission (TRMM), is the first mission dedicated to measuring tropical and subtropical rainfall through microwave and visible infrared sensors, and includes the first spaceborne rain radar. Re-entry occurred on June 16, 2015 at 06:54 UTC. However, understanding tropical precipitation is important for weather and climate prediction, as this precipitation contains three-fourths of the energy that drives atmospheric wind circulation.The concept for TRMM was first proposed in 1984. The 3B42 research product uses the Haddad et al. The measurements that go into the TRMM 3B42 precipitation estimates are from the TRMM passive microwave radiometer and precipitation radar, infrared radiometers, infrared brightness temperatures from geostationary satellites, and rain gauge measurements in a final step. study of precipitation.TRMM achievements and heritage are succeeded by the GPM core observatory VIRS, as its name implies, sensed The Lightning Imaging Sensor was a small, highly sophisticated instrument that detects and locates Clouds and the Earth's Radiant Energy Sensor (CERES)Clouds and the Earth's Radiant Energy Sensor (CERES) The overall objective of TRMM was to use active sensors (a Precipitation Radar, the first of its kind in space) and passive sensors (the Visible and Infrared Scanner [ VIRS] and the TRMM Microwave Imager [ TMI ]) to quantitatively describe tropical rainfall. TRMM satellite, launched in November 1997, can observe precipitation simultaneously with three different sensors. Like other Earth observation satellites , radar satellites often use sun-synchronous orbits so that diurnal variations of vegetation are ignored, allowing long-term variations to be more accurately measured. After 17 years of groundbreaking 3-D images of rain and storms, the joint NASA and Japan Aerospace Exploration Agency Tropical Rainfall Measuring Mission (TRMM) will come to an end next year. On Earth Day on April 22, the results of the poll were announced, and that accomplishment, including TRMM's observation of hurricanes and tropical depressions, was ranked third.The Earth Observation Research Center (EORC) of JAXA has started to release image data of a high-resolution global precipitation distribution map in quasi real time (about four hours after observations) on the Internet.
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