Dr. Zhong Liu is a research professor at the Center for Spatial Information Science and Systems (CSISS), College of Science, at George Mason University. He is a member of the NASA GES DISC Data Support Team to provide science and data support for NASA-JAXA TRMM, GPCP-3 and other global precipitation data sets. Over the years Dr. Liu has been working on data services and tools for fast and easy access of NASA high volume data products. He was the lead developer for the NOAA/NESDIS Interactive Multi-sensor Snow and Ice Mapping System (IMS) project. He initiated the TRMM Online Visualization and Analysis System (TOVAS), the very first instance of the NASA Goddard Giovanni family. He was the lead developer of the Hurricane Data Analysis Tool (HDAT) at the GES DISC Hurricane Portal, He is the Principal Investigator for "Integrate IPWG Validation Algorithms into TRMM Online Visualization and Analysis System (TOVAS)" and was a co-investigator of "Integrating NASA Earth Science Enterprise Data into Global Agricultural Decision Support Systems" and the lead developer of the global agriculture information system.