![NASA/GPM_L3/IMERG_MONTHLY_V06](https://developers.google.com/earth-engine/datasets/images/NASA/NASA_GPM_L3_IMERG_MONTHLY_V06_sample.png) Dataset Availability : 2000-06-01T00:00:00Z--2021-09-01T00:00:00Z Dataset Producer : [NASA GES DISC at NASA Goddard Space Flight Center](https://doi.org/10.5067/GPM/IMERG/3B-MONTH/06) Cadence : 1 Month Tags : [climate](https://developers.google.com/earth-engine/datasets/tags/climate) [geophysical](https://developers.google.com/earth-engine/datasets/tags/geophysical) [gpm](https://developers.google.com/earth-engine/datasets/tags/gpm) [imerg](https://developers.google.com/earth-engine/datasets/tags/imerg) [jaxa](https://developers.google.com/earth-engine/datasets/tags/jaxa) [monthly](https://developers.google.com/earth-engine/datasets/tags/monthly) [nasa](https://developers.google.com/earth-engine/datasets/tags/nasa) [precipitation](https://developers.google.com/earth-engine/datasets/tags/precipitation) [weather](https://developers.google.com/earth-engine/datasets/tags/weather) #### Description IMERG-Final version "06" stopped being produced in September, 2021. Version "07" is expected to be released in September 2022 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](https://pmm.nasa.gov/sites/default/files/document_files/IMERG_doc.pdf) for more details on the algorithm. Documentation: - [Algorithm Theoretical Basis Document](https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/IMERG_ATBD_V06.pdf) - [IMERG Quality Index](https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/IMERGV06_QI.pdf) - [Caveats for IMERG extension into TRMM era](https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/IMERGV06_TRMMera-caveats.pdf) - [IMERG Technical Documentation](https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/IMERG_doc.06.pdf) - [Release notes; New Morphing algorithm](https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/MorphingInV06IMERG.pdf) - [Remote-Sensing Reflectance](https://gpm1.gesdisc.eosdis.nasa.gov/data/GPM_L3/doc/README.GPM.pdf) - [Anomalies](https://gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/gpm_anomalous.html) ### Bands **Bands** Pixel size: 11132 meters (all bands) | Name | Units | Pixel Size | Description | |---|---|---|---| | `gaugeRelativeWeighting` | % | 11132 meters | Weighting of gauge precipitation relative to the multi-satellite precipitation | | `precipitation` | mm/hr | 11132 meters | Merged satellite-gauge precipitation estimate | | `precipitationQualityIndex` | Equivalent gauges per 2.5 degree box | 11132 meters | Quality Index for precipitation field | | `probabilityLiquidPrecipitation` | % | 11132 meters | Accumulation-weighted probability of liquid precipitation phase | | `randomError` | mm/hr | 11132 meters | Random error for merged satellite-gauge precipitation | ### 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 1 month 0.1 degree x 0.1 degree V06, Greenbelt, MD, Goddard Earth Sciences Data and Information Services Center (GES DISC), Accessed: \[Data Access Date\], 10.5067/GPM/IMERG/3B-MONTH/06 ### DOIs - ### Explore with Earth Engine > [!NOTE] > **Important:** Earth Engine is a platform for petabyte-scale scientific analysis and visualization of geospatial datasets, both for public benefit and for business and government users. Earth Engine is free to use for research, education, and nonprofit use. To get started, please [register for Earth Engine access.](https://console.cloud.google.com/earth-engine) ### Code Editor (JavaScript) ```javascript var dataset = ee.ImageCollection('NASA/GPM_L3/IMERG_MONTHLY_V06') .filterDate('2019-01-01', '2020-01-01'); // Select the max precipitation and mask out low precipitation values. var precipitation = dataset.select('precipitation').max(); var mask = precipitation.gt(0.25); var precipitation = precipitation.updateMask(mask); var palette = [ '000096','0064ff', '00b4ff', '33db80', '9beb4a', 'ffeb00', 'ffb300', 'ff6400', 'eb1e00', 'af0000' ]; var precipitationVis = {min: 0.0, max: 1.5, palette: palette}; Map.addLayer(precipitation, precipitationVis, 'Precipitation (mm/hr)'); Map.setCenter(-76, 33, 3); ``` Python setup See the [Python Environment](https://developers.google.com/earth-engine/guides/python_install) page for information on the Python API and using `geemap` for interactive development. ```python import ee import geemap.core as geemap ``` ### Colab (Python) ```python dataset = ee.ImageCollection('NASA/GPM_L3/IMERG_MONTHLY_V06').filterDate( '2019-01-01', '2020-01-01' ) # Select the max precipitation and mask out low precipitation values. precipitation = dataset.select('precipitation').max() mask = precipitation.gt(0.25) precipitation = precipitation.updateMask(mask) palette = [ '000096','0064ff', '00b4ff', '33db80', '9beb4a', 'ffeb00', 'ffb300', 'ff6400', 'eb1e00', 'af0000' ] precipitation_vis = {'min': 0.0, 'max': 1.5, 'palette': palette} m = geemap.Map() m.add_layer(precipitation, precipitation_vis, 'Precipitation (mm/hr)') m.set_center(-76, 33, 3) m ``` [Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NASA/NASA_GPM_L3_IMERG_MONTHLY_V06) [GPM: Monthly Global Precipitation Measurement (GPM) v6](https://developers.google.com/earth-engine/datasets/catalog/NASA_GPM_L3_IMERG_MONTHLY_V06) IMERG-Final version "06" stopped being produced in September, 2021. Version "07" is expected to be released in September 2022 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 ... NASA/GPM_L3/IMERG_MONTHLY_V06, climate,geophysical,gpm,imerg,jaxa,monthly,nasa,precipitation,weather 2000-06-01T00:00:00Z/2021-09-01T00:00:00Z -90 -180 90 180 Google Earth Engine https://developers.google.com/earth-engine/datasets - [https://doi.org/10.5067/GPM/IMERG/3B-MONTH/06](https://doi.org/https://doi.org/10.5067/GPM/IMERG/3B-MONTH/06) - [https://doi.org/10.5067/GPM/IMERG/3B-MONTH/06](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NASA_GPM_L3_IMERG_MONTHLY_V06)