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.
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'.
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 …
[null,null,[],[[["\u003cp\u003eThis dataset, NASA/GPM_L3/IMERG_V06, has been superseded by a newer version, NASA/GPM_L3/IMERG_V07.\u003c/p\u003e\n"],["\u003cp\u003eIt provides global precipitation estimates every 3 hours, combining data from various satellite and ground sources.\u003c/p\u003e\n"],["\u003cp\u003eThe dataset covers the period from June 1, 2000, to June 2, 2024, with a spatial resolution of approximately 11 kilometers.\u003c/p\u003e\n"],["\u003cp\u003eIMERG is the unified algorithm used to intercalibrate, merge, and interpolate precipitation data, offering both provisional and permanent products.\u003c/p\u003e\n"],["\u003cp\u003eThis dataset is freely available for public use, produced as part of the international Global Precipitation Measurement (GPM) mission.\u003c/p\u003e\n"]]],[],null,["# GPM: Global Precipitation Measurement (GPM) Release 06 [deprecated]\n\n**Caution:** This dataset has been superseded by [NASA/GPM_L3/IMERG_V07](/earth-engine/datasets/catalog/NASA_GPM_L3_IMERG_V07). \n\nDataset Availability\n: 2000-06-01T00:00:00Z--2024-06-02T18:30:00Z\n\nDataset Provider\n:\n\n\n [NASA GES DISC at NASA Goddard Space Flight Center](https://doi.org/10.5067/GPM/IMERG/3B-HH/06)\n\nCadence\n: 30 Minutes\n\nTags\n:\n climate \n geophysical \n gpm \n half-hourly \n imerg \n jaxa \n nasa \n precipitation \nweather \n\n#### Description\n\nGlobal Precipitation Measurement (GPM) is an international\nsatellite mission to provide next-generation observations of\nrain and snow worldwide every three hours. The Integrated Multi-satellitE\nRetrievals for GPM (IMERG) is the unified algorithm that provides\nrainfall estimates combining data from all passive-microwave\ninstruments in the GPM Constellation.\n\nThis algorithm is intended to intercalibrate, merge, and interpolate\nall satellite microwave precipitation estimates, together with\nmicrowave-calibrated infrared (IR) satellite estimates, precipitation\ngauge analyses, and potentially other precipitation estimators at fine\ntime and space scales for the TRMM and GPM eras over the entire globe.\nThe system is run several times for each observation time, first\ngiving a quick estimate and successively providing better estimates\nas more data arrive. The final step uses monthly gauge data to\ncreate research-level products. See [IMERG Technical Documentation](https://pmm.nasa.gov/sites/default/files/document_files/IMERG_doc.pdf)\nfor more details on the algorithm.\n\nDocumentation:\n\n- [Algorithm Theoretical Basis Document](https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/IMERG_ATBD_V06.pdf)\n\n- [IMERG Quality Index](https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/IMERGV06_QI.pdf)\n\n- [Caveats for IMERG extension into TRMM era](https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/IMERGV06_TRMMera-caveats.pdf)\n\n- [IMERG Technical Documentation](https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/IMERG_doc.06.pdf)\n\n- [Release notes; New Morphing algorithm](https://docserver.gesdisc.eosdis.nasa.gov/public/project/GPM/MorphingInV06IMERG.pdf)\n\n- [Remote-Sensing Reflectance](https://gpm1.gesdisc.eosdis.nasa.gov/data/doc/README.GPM.pdf)\n\n- [Anomalies](https://gpmweb2https.pps.eosdis.nasa.gov/tsdis/AB/docs/gpm_anomalous.html)\n\nThis collection contains provisional\nproducts that are regularly replaced with updated versions when\nthe data become available. The products are marked with a metadata\nproperty called 'status'. When a product is initially made available,\nthe property value is 'provisional'. Once a provisional product\nhas been updated with the final version, this value is updated\nto 'permanent'.\n\nThis collection contains data from:\n\n- GPM_3IMERGHH_V06 [doi:10.5067/GPM/IMERG/3B-HH-L/06](https://doi.org/10.5067/GPM/IMERG/3B-HH-L/06)\n- GPM_3IMERGHH_06 [doi:10.5067/GPM/IMERG/3B-HH/06](https://doi.org/10.5067/GPM/IMERG/3B-HH/06)\n\n### Bands\n\n\n**Pixel Size**\n\n11132 meters\n\n**Bands**\n\n| Name | Units | Min | Max | Pixel Size | Description |\n|----------------------------------|---------------------|--------|--------|------------|-------------------------------------------|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|\n| `HQobservationTime` | min. into half hour | 0\\* | 29\\* | meters | PMW source time |\n| `HQprecipSource` | | | | meters | PMW source sensor identifier |\n| Bitmask for HQprecipSource - Bits 0-3: PMW source sensor identifier - 0: No observation - 1: TMI - 2: (unused) - 3: AMSR - 4: SSMI - 5: SSMIS - 6: AMSU - 7: MHS - 8: SAPHIR - 9: GMI - 10: (unused) - 11: ATMS - 12: AIRS - 13: TOVS - 14: CRIS ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||\n| `HQprecipitation` | mm/hr | 0\\* | 120\\* | meters | merged PMW precipitation |\n| `IRkalmanFilterWeight` | % | 0\\* | 100\\* | meters | Kalman filter weight for IR |\n| `IRprecipitation` | mm/hr | 0\\* | 79.5\\* | meters | IR precipitation |\n| `precipitationCal` | mm/hr | 0\\* | 174\\* | meters | snapshot precipitation - calibrated |\n| `precipitationUncal` | mm/hr | 0\\* | 120\\* | meters | snapshot precipitation - uncalibrated |\n| `probabilityLiquidPrecipitation` | % | 0\\* | 100\\* | meters | probability of liquid precipitation phase |\n| `randomError` | mm/hr | 0.24\\* | 250\\* | meters | calibrated-precipitation random error |\n\n\\* estimated min or max value\n\n### Terms of Use\n\n**Terms of Use**\n\nAll NASA-produced data from the GPM mission is made freely available for the public to use.\n\n### Citations\n\nCitations:\n\n- Huffman, G.J., E.F. Stocker, D.T. Bolvin, E.J. Nelkin, Jackson Tan (2019),\n GPM IMERG Final Precipitation L3 Half Hourly 0.1 degree x 0.1 degree V06,\n Greenbelt, MD, Goddard Earth Sciences Data and Information Services Center\n (GES DISC), Accessed: \\[Data Access Date\\],\n [doi:10.5067/GPM/IMERG/3B-HH/06](https://doi.org/10.5067/GPM/IMERG/3B-HH/06)\n\n### DOIs\n\n- \u003chttps://doi.org/10.5067/GPM/IMERG/3B-HH-L/06\u003e\n- \u003chttps://doi.org/10.5067/GPM/IMERG/3B-HH/06\u003e\n\n### Explore with Earth Engine\n\n| **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)\n\n### Code Editor (JavaScript)\n\n```javascript\n// GPM V6 30 minute data around hurricane Dorian for a single day.\nvar range = ee.Date('2019-09-03').getRange('day');\nvar dataset = ee.ImageCollection('NASA/GPM_L3/IMERG_V06')\n .filter(ee.Filter.date(range));\n\n// Select the max precipitation and mask out low precipitation values.\nvar precipitation = dataset.select('precipitationCal').max();\nvar mask = precipitation.gt(0.5);\nvar precipitation = precipitation.updateMask(mask);\n\nvar palette = [\n '000096','0064ff', '00b4ff', '33db80', '9beb4a',\n 'ffeb00', 'ffb300', 'ff6400', 'eb1e00', 'af0000'\n];\nvar precipitationVis = {min: 0, max: 15, palette: palette};\nMap.addLayer(precipitation, precipitationVis, 'Precipitation (mm/hr)');\nMap.setCenter(-76, 33, 3);\n```\n[Open in Code Editor](https://code.earthengine.google.com/?scriptPath=Examples:Datasets/NASA/NASA_GPM_L3_IMERG_V06) \n[GPM: Global Precipitation Measurement (GPM) Release 06 \\[deprecated\\]](/earth-engine/datasets/catalog/NASA_GPM_L3_IMERG_V06) \nGlobal 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 ... \nNASA/GPM_L3/IMERG_V06, climate,geophysical,gpm,imerg,jaxa,nasa,precipitation,weather \n2000-06-01T00:00:00Z/2024-06-02T18:30:00Z \n-90 -180 90 180 \nGoogle Earth Engine \nhttps://developers.google.com/earth-engine/datasets\n\n- [https://doi.org/10.5067/GPM/IMERG/3B-HH/06](https://doi.org/https://doi.org/10.5067/GPM/IMERG/3B-HH/06)\n- [https://doi.org/10.5067/GPM/IMERG/3B-HH/06](https://doi.org/https://developers.google.com/earth-engine/datasets/catalog/NASA_GPM_L3_IMERG_V06)"]]
