EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC RADIATION
TRMM_GPMFormat/PR L2 Spectral Latent Heating Profiles dataset is the new (GPM-formated) TRMM product. There is no equivalent in the old TRMM suite of products. It is obtained from the Precipitation Radar (PR) sensor onboard Tropical Rainfall Measuring Mission (TRMM) Core Satellite and produced by the Japan Aerospace Exploration Agency (JAXA).The most innovative of the five TRMM instruments, the PR is the first quantitative rain radar instrument to be flown in space. The major objectives of the PR instrument are as follows:a. Provides a 3-dimensional rainfall structureb. Achieves quantitative measurements of the rain rates over both land and ocean When properly combined with TMI measurements, the Precipitation Radar (PR) data is instrumental in obtaining the height profile of the precipitation content, from which the profile of latent heat release from the Earth can be estimated. The rain rate is estimated from the radar reflectivity factor when the rain rate is small by applying conventional algorithms used for ground-based radar. For large rain rates, a rain attenuation correction is made using the total-path attenuation of land or sea surface echoes.This dataset uses TRMM PR information [precipitation-top height (PTH), precipitation rates at the surface and melting level, and rain type] to select heating profiles from lookup tables. Heating-profile lookup tables for the three rain typesâconvective, shallow stratiform, and anvil rain (deep stratiform with a melting level) were derived from numerical simulations of tropical cloud systems from the Tropical Ocean and Global Atmosphere Coupled Ocean-Atmosphere Response Experiment (TOGA COARE) utilizing a cloud-resolving model (CRM). The provided format is HDF5. The Sampling resolution are 5 km(horizontal) and 250 m (vertical). The current version of the product is Version 6. The generation unit is one orbit.
JP/JAXA/SAOC
TRMM_GPMFormat/PR L2 Spectral Latent Heating Profiles