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Published September 26, 2018 | Version 0.1
Dataset Open

Monthly precipitation in mm at 1 km resolution based on IMERGE 2014-2018

Creators

  • 1. Envirometrix Ltd

Description

Monthly precipitation in mm based on IMERGE 2014-2018 monthly product (ftp://jsimpson.pps.eosdis.nasa.gov/NRTPUB/imerg/gis/ see files e.g. "3B-MO-L.GIS.IMERG.20180601.V05B.tif"). Downscaled to 1 km resolution using an average between IMERGE, WorldClim (http://biogeo.ucdavis.edu/data/worldclim/v2.0/) and CHELSA Climate (https://www.wsl.ch/lud/chelsa/data/climatologies/prec/). Antartica is not included.

All files internally compressed using "COMPRESS=DEFLATE" creation option in GDAL. File naming convention:

  • clm = theme: climate,
  • precipitation = variable: precipitation,
  • imerge.oct = determination method: IMERGE long-term average values for October,
  • m = mean value,
  • 1km = spatial resolution / block support: 1 km,
  • s0..0cm = vertical reference: land surface,
  • 2014..2018 = time reference: from 2014 to 2018,
  • v0.1 = version number: 0.1,

Notes

Processing steps are explained in detail at: https://github.com/Envirometrix/LandGISmaps/tree/master/input_layers/clim1km

Files

clm_precipitation_imerge.annual_m_1km_s0..0cm_2014..2018_v0.1.tif

Files (853.9 MB)

Additional details

References

  • Karger, D. N., Conrad, O., Böhner, J., Kawohl, T., Kreft, H., Soria-Auza, R. W., ... & Kessler, M. (2017). Climatologies at high resolution for the earth's land surface areas. Scientific data, 4, 170122.
  • Huffman, G. J., D. T. Bolvin, D. Braithwaite, K. Hsu, R. Joyce, and P. Xie, (2014). NASA Global Precipitation Measurement (GPM) Integrated Multi-satellitE Retrievals for GPM (IMERG), Algorithm Theoretical Basis Document (ATBD). https://storm- pps.gsfc.nasa.gov/storm/IMERG_ATBD_V4.pdf
  • Fick, S. E., & Hijmans, R. J. (2017). WorldClim 2: new 1‐km spatial resolution climate surfaces for global land areas. International Journal of Climatology, 37(12), 4302-4315.