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Drought and the Australia Wildfire Season

IMERG rainfall totals from Australia in November 2019
Thursday, March 12, 2020
Droughts and dry, arid conditions are naturally occurring phenomena in Australia. Such an environment is conducive to wild fires, which are started mainly by lightning and can occur throughout the year, but typically emerge between October and April and are most prevalent during the Southern Hemisphere summer; they are part of the seasonal cycle in Australia. However, some years are worse than others, and the 2019-2020 wild fire season was especially bad. It has been estimated that upwards of 46 million acres were burned, or roughly the size of the entire state of Washington. In terms of area...
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File Specification for GPM Products

Date Last Updated
May 26th, 2023
Document Description

This document describes the data file formats for all GPM products. Metadata is described in Metadata for GPM Products. The purpose of this file specification document is to define the file content and format for the GPM data products. The file specifications have been reviewed by the algorithm developers. Formats are expected to change for each processing cycle.

Version 7.16 TKIO 3.100

File Downloads
filespec.GPM_.pdf

Master List of PPS Data Products and DOIs

Date Last Updated
July 11th, 2018
Document Description

This document contains a comprehensive list of all data products produced by the NASA Precipitation Processing System, including their Document Object Identifiers (DOIs)

File Downloads
Master_List_of_PPS_Data_Products.pdf

File Naming Convention for Precipitation Products For the Global Precipitation Mission Measurement

Date Last Updated
October 10th, 2017
Document Description

This document describes the file naming conventions that will be used to name data products produced by the Precipitation Processing System (PPS) for the Global Precipitation Measurement (GPM) Mission. These file naming conventions are also intended to apply to files produced or reprocessed from the Tropical Rainfall Measuring Mission (TRMM) satellite during the period of GPM operations.

File Downloads
FileNamingConventionForPrecipitationProductsForGPMMission.pdf

What are the differences between IMERG Early, Late, and Final Runs, and which should be used for research?

The main difference between the IMERG Early and Late Run is that Early only has forward propagation (which basically amounts to extrapolation forward in time), while the Late has both forward and backward propagation (allowing interpolation).  As well, the additional 10 hours of latency allows lagging data transmissions to make it into the Late run, even if they were not available for the Early (see below). 

There are two possible factors which contribute to differences in the IMERG Late Run and Final Run datasets:

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