Data visualization and analysis tools for the Global Precipitation Measurement (GPM) Validation Network

The Validation Network (VN) prototype for the Global Precipitation Measurement (GPM) mission compares data from the its predecessor Tropical Rainfall Measuring Mission (TRMM) satellite´s Precipitation Radar (PR) to ground radar (GR) measurements from U.S. and international operational weather radars. This prototype is a major component of the GPM Ground Validation System (GVS). The VN provides a means for the precipitation measurement community to identify and resolve significant discrepancies between the GR observations and similar satellite observations. The VN prototype is based on research results and computer code Liao et al. [1]. Morris and Schwaller [3] describe the VN prototype and initial results in detail. This paper describes software tools that have been developed for visualization and statistical analysis of the original and volume matched PR and GR data.