GPM: Global Precipitation Measurement (GPM) Release 07

NASA/GPM_L3/IMERG_V07
Dataset Availability
2000-06-01T00:00:00Z–2024-08-14T00:30:00Z
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("NASA/GPM_L3/IMERG_V07")
Tags
climate geophysical gpm imerg jaxa nasa precipitation weather
half-hourly

Description

Global Precipitation Measurement (GPM) is an international satellite mission to provide next-generation observations of rain and snow worldwide every three hours. The Integrated Multi-satellitE Retrievals for GPM (IMERG) is the unified algorithm that provides rainfall estimates combining data from all passive-microwave instruments in the GPM Constellation.

This algorithm is intended to intercalibrate, merge, and interpolate all satellite microwave precipitation estimates, together with microwave-calibrated infrared (IR) satellite estimates, precipitation gauge analyses, and potentially other precipitation estimators at fine time and space scales for the TRMM and GPM eras over the entire globe. The system is run several times for each observation time, first giving a quick estimate and successively providing better estimates as more data arrive. The final step uses monthly gauge data to create research-level products. See IMERG Technical Documentation for more details on the algorithm.

Documentation:

This collection contains provisional products that are regularly replaced with updated versions when the data become available. The products are marked with a metadata property called 'status'. When a product is initially made available, the property value is 'provisional'. Once a provisional product has been updated with the final version, this value is updated to 'permanent'.

This collection contains data from:

Bands

Resolution
11132 meters

Bands

Name Units Min Max Description
MWobservationTime min. into half hour 0* 29*

PMW source time
MWprecipSource

PMW source sensor identifier
MWprecipitation mm/hr 0* 120*

merged PMW precipitation
IRinfluence % 0* 100*

Kalman filter weight for IR
IRprecipitation mm/hr 0* 79.5*

IR precipitation
precipitation mm/hr 0* 174*

snapshot precipitation - calibrated
precipitationUncal mm/hr 0* 120*

snapshot precipitation - uncalibrated
probabilityLiquidPrecipitation % 0* 100*

probability of liquid precipitation phase
randomError mm/hr 0.24* 250*

calibrated-precipitation random error
* estimated min or max value

Terms of Use

Terms of Use

All NASA-produced data from the GPM mission is made freely available for the public to use.

Citations

Citations:

  • Huffman, G.J., E.F. Stocker, D.T. Bolvin, E.J. Nelkin, Jackson Tan (2019), GPM IMERG Final Precipitation L3 Half Hourly 0.1 degree x 0.1 degree V06, Greenbelt, MD, Goddard Earth Sciences Data and Information Services Center (GES DISC), Accessed: [Data Access Date], doi:10.5067/GPM/IMERG/3B-HH/07

DOIs

Explore with Earth Engine

Code Editor (JavaScript)

// GPM V7 30 minute data for a single day.
var range = ee.Date('2019-09-03').getRange('day');
var dataset = ee.ImageCollection('NASA/GPM_L3/IMERG_V07')
    .filter(ee.Filter.date(range));

// Select the max precipitation and mask out low precipitation values.
var precipitation = dataset.select('precipitation').max();
var mask = precipitation.gt(0.5);
var precipitation = precipitation.updateMask(mask);

var palette = [
  '000096','0064ff', '00b4ff', '33db80', '9beb4a',
  'ffeb00', 'ffb300', 'ff6400', 'eb1e00', 'af0000'
];
var precipitationVis = {min: 0, max: 15, palette: palette};
Map.addLayer(precipitation, precipitationVis, 'Precipitation (mm/hr)');
Map.setCenter(-76, 33, 3);
Open in Code Editor
Global Precipitation Measurement (GPM) is an international satellite mission to provide next-generation observations of rain and snow worldwide every three hours. The Integrated Multi-satellitE Retrievals for GPM (IMERG) is the unified algorithm that provides rainfall estimates combining data from all passive-microwave instruments in the GPM Constellation. This algorithm is intended …
NASA/GPM_L3/IMERG_V07, climate,geophysical,gpm,imerg,jaxa,nasa,precipitation,weather
2000-06-01T00:00:00Z/2024-08-14T00:30:00Z
Google Earth Engine