The latest Version-7 (V7) Tropical Rainfall Measuring Mission (TRMM) Multi-satellite Precipitation Analysis (TMPA) products were released by the National Aeronautics and Space Administration (NASA) in December of 2012. Their performance OPEN ACCESS

[1] This study uses TRMM lightning and radar observations to study the fundamental relationship between precipitation ice mass and lightning flash density. The results indicate that the physical assumptions of precipitation-based charging and mixed phase precipitation development are robust and that on a global scale, the relationship between precipitation ice water path and lightning flash den...

To improve the current 2A12 rain retrieval algorithm (Kummerow et al. 2001) over land, it is important to evaluate the anomalies in the retrieved product. However, it is difficult to quantify these anomalies globally because there is no single rainfall product that can represent the ground truth. Products from rain gauges have reliable estimation of rainfall only over areas with dense rain gaug...

Since the TRMM launch in 1997, global rain estimation by microwave radiometer has been improved referring the PR data. The microwave radiometer observation becomes the major observation tool for the Global Precipitation Measurement (GPM). However, there are still gaps of global rainfall distribution between PR and TMI (e.g. Berg et al., 2002). One of the major issues for rain retrieval algorith...

Design by Transformation (DxT) is a top-down approach to mechanically derive high-performance algorithms for dense linear algebra. We use DxT to derive the implementation of a representative matrix operation, twosided Trmm. We start with a knowledge base of transformations that were encoded for a simpler set of operations, the level-3 BLAS, and add only a few transformations to accommodate the ...

A comparison of the TRMM satellite product and IMD rainfall gridded data is expressed by means indices for study drought variation in Tumakuru District Karnataka, India.