Recent Training Sessions

(2019 - 2020)

Advanced Webinar: Applications of GPM IMERG Reanalysis for Assessing Extreme Dry and Wet Periods

January 28, 2020. January 30, 2020. February 4, 2020.

Past ARSET trainings on water resources and flood management covered TMPA and IMERG data and their applications in detail. This advanced webinar will focus on analysis and interpretation of the new long-term IMERG data, focused on extreme dry and wet period monitoring and management. The webinar will include lectures and hands-on exercises to derive regional precipitation statistics. By the end of this training, attendees will be able to:

  • Derive regional precipitation statistics (mean, standard deviation, anomalies, percentile values) 
  • Calculate and interpret the Standardized Precipitation Index (SPI) for assessing extreme dry and wet periods

Training Resources




Introductory Webinar: Overview and Applications of Integrated Multi-Satellite Retrievals for GPM (IMERG) Long-term Precipitation Data Products

October 16, 2019

On October 16, 2019, GPM held a webinar about the new Version 6 release of the IMERG multi-satellite precipitation-estimation algorithm.  This training is for professionals interested in using a state-of-the-art precipitation data product for applications in the water resources, disasters, agriculture, energy, and health sectors.  By the end of the training, participates will:

  • Be familiar with the TRMM/GPM Missions, GPM data products, and GPM Applications
  • Understand IMERG and the strengths/caveats of the long-term IMERG data record
  • Find previous training webinars related to GPM precipitation
  • Learn to access, analyze, and visualize IMERG data using NASA web-tools

Training Resources

(2017 - 2018)

Using NASA Earth Observations to Predict and Monitor Vector-borne and Water-related Diseases - Advanced Level

June 28th 2018

View a Recording of the Training Webinar
(Right-click -> Save As to download video file)

Using NASA Earth Observing Data for Monitoring and Response to Vector-borne and Water-borne Diseases

May 8th, 2018

View a Recording of the Training Webinar
(Right-click -> Save As to download video file)

GPM Agricultural Applications Workshop

August 1, 2017

This one-day workshop focused on engaging the governmental and non-governmental organizations, public and private industry, academia, and other end users on how NASA precipitation and other water data can be used for agricultural applications and support decision making.

View Meeting Files

Status of Global Precipitation Measurement (GPM) Mission Data Products and Applications

May 3, 2017

Topics Covered:

  • Apply open-source data and tools to flood monitoring and management
  • Utilize satellite observations to evaluate extreme weather conditions, prepare for impending flooding, and plan relief activities
  • GPM New Data Access Capabilities
  • NASA/World Bank E-book
  • GPM Applications and Upcoming Workshops

Training Files:

NASA Remote Sensing for Flood Monitoring and Management

April 18 - 20, 2017


  • Session 1A: Precipitation from Remote Sensing Measurements
  • Session 1B: Digital Elevation Data from Remote Sensing
  • Session 2A: Overview of Synthetic Aperture Radar (SAR) Data for Flood Detection
  • Session 2B: Soil Moisture Active Passive (SMAP) Mission
  • Session 3A: Flood Management and Monitoring Tools
  • Session 3B: Flood Monitoring and Management Case Study

Training Files:


Older Training Sessions

(2015 - 2016)

Overview of Global Precipitation Measurement (GPM) Mission, Data Products and Data Access Tools

December 8, 2015

Topics Covered:

  • GPM Core Satellite: Orbital Configuration, Sensors (GMI, DPR) GPM Constellation Satellites
  • GPM Data Products: Level-2 to Level-3 Data Sets from GMI, DPR and Combined GMI-DPR, IMERG Filename Conventions, Formats Spatial and Temporal Resolutions and Coverage Data Search and Access Web-tools Data Quality Potential Data Applications

Training Files:

GPM Data Product Updates and Demonstration of Web-tools for Data Search, Analysis, Visualization, and Download

March 15, 2016

Topics Covered:

  • GPM Products: Data Updates, quality, and Validation Information
  • Demonstration of Web-tools: Giovanni, PPS-STORM, Mirador, Spatial and temporal Sub-setting by Shapefile
  • Data Visualization: Maps and Time Series, Data Formats and Download Options

Training Files:

Demonstration of Case Studies of Data Import and Analysis in GIS

June 14, 2016

Topics Covered:

  • GPM Products: Review and Updates
  • Demonstration of Importing Level-2 and IMERG data into GIS
  • Demonstration of Case Studies (TBD): Analysis of IMERG Rain and Snow Products with additional GIS layers including Weather, Vegetation, Terrain, and Socio-economic Data for GPM Applications

Training Files:

Tutorial on Using Python Scripts for Reading GPM Data

September 13, 2016

Topics Covered:

  • GPM Products: Data Review and Data Quality
  • Step-by-Step tutorial on Downloading and Reading GPM Level-2 and IMERG Products by Using Python Scripts

Training Files:

**NOTE: please use these files rather than those downloadable during Part 1 of the webinar above – some errors in the scripts were found and corrected. **


Precipitation Remote Sensing - Overview of TRMM and GPM

March 17, 2015

An overview of ARSET, an introduction to precipitation remote sensing, an overview of TRMM, introduction to the GPM mission and sensors, and examples of precipitation data applications.

TRMM/GPM Data Products and Data Access Tools

March 24, 2015

A review of session one; an overview of GPM rainfall data, including data processing levels and data formats; and an overview of GPM data access tools, including a demonstration of GPM data visualization.

Demonstration of Data Access and GIS Applications

March 31, 2015

A review of sessions one and two, information on GPM-IMERG from guest speaker Dr. George Huffman (NASA-GSFC), a case study using GPM-IMERG Precipitation Data for Hurricane Arthur, and a course summary.