MERRA2 - 50km - Daily¶
Description¶
NASAs Global Modeling and Assimilation Office (GMAO) produces the Modern-Era Retrospective analysis for Research and Applications, Version 2 (MERRA2) which is a 30+ year global climate reanalysis dataset.
Climate Engine details¶
- Dataset type
- Climate/Hydrology
- Climate Engine ID
- MERRA2
- Documentation
- https://support.climateengine.org/article/70-merra2
Dataset details¶
- Scale
- 50km
- Frequency
- Daily
- Coverage
- Global
- Start year
- 1980
- End year
- Present
Earth Engine collection details¶
- Earth Engine asset
- projects/climate-engine-pro/assets/ce-merra2
- Earth Engine asset URL
- https://gee-community-catalog.org/projects/merrav2/?h=merra2
- Earth Engine source catalog
- ClimateEngine.org
Variables¶
API variable docs: #modern-era-retrospective-analysis-for-research-and-applications-version-2
| Name | Units |
|---|---|
| ASCE Alfalfa Reference Evapotranspiration | mm |
| ASCE Grass Reference Evapotranspiration | mm |
| Climatic Water Balance (PPT-ETo) | mm |
| Evap. Demand Drought Index Hargreaves (EDDI) | N/A |
| Evaporative Drought Demand Index | N/A |
| Fire Weather Index | N/A |
| Maximum Temperature | K |
| Minimum Temperature | K |
| Potential ET Hargreaves | mm |
| Potential Water Deficit Hargreaves | mm |
| Precipitation | mm |
| Specific humidity | 1/1000 kg/kg |
| Standardized Precipitation Evapotranspiration Index Hargreaves (SPEI) | N/A |
| Standardized Precipitation Evapotranspiration Index(SPEI) | N/A |
| Standardized Precipitation Index(SPI) | N/A |
| Surface incoming shortwave flux | K |
| Surface incoming shortwave flux assuming clear sky | K |
| Surface pressure | kPa |
| Wind Speed | m/s |
References¶
- MERRA-2 Overview: The Modern-Era Retrospective Analysis for Research and Applications, Version 2 (MERRA-2), Ronald Gelaro, et al., 2017, J. Clim., doi: 10.1175/JCLI-D-16-0758.1
Website: https://gmao.gsfc.nasa.gov/reanalysis/MERRA-2/
Terms of use¶
If you use MERRA-2 data in your scientific studies, we request that you include citations to these data in the reference lists of your publication manuscripts. Each MERRA-2 file collection has its own citable DOI.