Sciences and Exploration Directorate

Charanjit Singh Pabla

(Research Scientist)

Charanjit Singh Pabla's Contact Card & Information.
Phone: 757.824.2269
Org Code: 612
Mail Code 610.W
Wallops, VA 23337

Brief Bio

Charanjit S. Pabla is a research radar meteorologist at NASA Goddard Space Flight Center (GSFC) Wallops Flight Facility (WFF) at Wallops Island, VA. Charanjit is responsible for operating NASA’s S-Band Dual Polarimetric Radar (NPOL) in conjunction with the Global Precipitation Measurement (GPM) satellite overpass for ground validation support to improve and calibrate satellite based precipitation estimates. Additionally, he conducts radar-precipitation research utilizing various ground-based weather radars (WSR-88Ds) and NPOL as well as ground instruments such as disdrometers and rain gauges.

Research Interests

Research Scientist/Meteorologist

Earth Science: Precipitation

Radar rainfall and DSD analysis


Radar Meteorologist

Science Systems and Applications, Inc (SSAI) - Wallops Island, VA

December 2016 - Present

  • Operate NASA's S-Band Dual-Polarimetric Radar (NPOL)
  • Weather forecast for Global Precipitation Measurement (GPM) satellite overpass
  • Conduct precipitation science research utilizing various ground based instruments

Operational Meteorologist & Data Analyst

Commodity Weather Group, LLC - Bethesda, MD

January 2016 - November 2016

  • Short and medium range operational forecasting for energy and agricultural markets
  • Conduct statistical data analysis for energy and agricultural sectors
  • Write weather risk and analysis blogs

Graduate Research Assistant

Severe Weather Institute Radar & Lightning Laboratories (SWIRLL) at University of Alabama in Huntsville, Department of Atmospheric Science - Huntsville, AL

May 2014 - December 2015

  • Conduct research funded by the NASA Global Precipitation Measurement (GPM) Mission to analyze disdrometer drop size distribution (DSD) integration period sensitivity to empirical radar-rain and gamma model algorithms
  • Participated in NASA's Integrated Precipitation and Hydrology Experiment (IPHEx) maintaining and calibrating ground instruments (disdrometers and rain guages); and forecasting GPM satellite overpass to aid flight operations


National Weather Service (NWS) - Seattle, WA

June 2012 - September 2012

  • Dual-polarimetric radar training through case study analysis over the Great Plains and Western United States
  • Assisting lead hydrologist on creating an algorithm for river basin flooding


M.S. in Atmospheric Science from University of Alabama - Huntsville, 2016
Thesis: Analyzing the sensitivity of disdrometer-derived drop size distribution (DSD) integration period to radar-rain and gamma model relation algorithms

B.S. in Atmospheric Science from University of Washington - Seattle, 2012


Professional Societies

Member, American Meteorological Society

2012 - Present

Member, American Geophysical Union

2014 - Present

Professional Service

American Meteorological Society (AMS) Student Chapter

  • University of Alabama in Huntsville--President, 2014-2015
  • Rocket City Weather Fest--Co-Chair, 2014-2015
  • University of Washington--Vice President, 2011-2012

Special Experience

  • Knowledge in weather radar operations
  • Experience in polarimetric radar modeling
  • Excellent programming experience (IDL, MatLab, and Python)
  • Experience with MySQL database
  • Familiar with Unix/Linux Environment and Shell Scripting
  • Excellent knowledge in statistical data analysis



2022. "GPM Ground Validation at NASA Wallops Precipitation Research Facility." Journal of Atmospheric and Oceanic Technology 39 (8): 1199-1215 [10.1175/jtech-d-21-0122.1] [Journal Article/Letter]

2020. "Drop Size Distribution Measurements in Outer Rainbands of Hurricane Dorian at the NASA Wallops Precipitation-Research Facility." Atmosphere 11 (6): 578 [10.3390/atmos11060578] [Journal Article/Letter]

2018. "The System for Integrating Multi-platform data to Build the Atmospheric column (SIMBA) precipitation observation fusion framework." Journal of Atmospheric and Oceanic Technology JTECH-D-17-0187.1 [10.1175/jtech-d-17-0187.1] [Journal Article/Letter]

Talks, Presentations and Posters


Sample Time Sensitivity on Rain Drop Size Distribution (DSD) and Radar Parameters


NSSTC 8th Annual Science & Technology JAMBOREE, Huntsville, AL


GPM Ground Validation Studies at the Wallops/GPM Precipitation Research Facility

February 2017

GSFC Jamboree

Drop Size Distribution Temporal Sample Sensitivity Analysis on Radar-Rain Relations and Gamma Model Parameters

November 2015

American Meteorological Society 37th Conference on Radar Meteorology, Norman, OK

Integration Time Influence on Rain Drop Size Distribution (DSD) and Radar Parameters from disdrometer data


American Geophysical Union Fall Meeting, San Francisco, CA