Click on one of the following images to see a detailed view of monthly (mm/month), annual (mm/year), or extreme event (90th percentile) rainfall

January (mm/month) TIFF Image  GeoTIFF Data KML     NetCDF	February (mm/month) TIFF Image  GeoTIFF Data KML     NetCDF	March (mm/month) TIFF Image  GeoTIFF Data KML     NetCDF
April (mm/month) TIFF Image  GeoTIFF Data KML     NetCDF	May (mm/month) TIFF Image  GeoTIFF Data KML     NetCDF	June (mm/month) TIFF Image  GeoTIFF Data KML     NetCDF
July (mm/month) TIFF Image  GeoTIFF Data KML     NetCDF	August (mm/month) TIFF Image  GeoTIFF Data KML     NetCDF	September (mm/month) TIFF Image  GeoTIFF Data KML     NetCDF
October (mm/month) TIFF Image  GeoTIFF Data KML     NetCDF	November (mm/month) TIFF Image  GeoTIFF Data KML     NetCDF	December (mm/month) TIFF Image  GeoTIFF Data KML     NetCDF
Annual rainfall (mm/year) TIFF Image  GeoTIFF Data KML     NetCDF	90th-percentile rainfall threshold (mm/hour) TIFF Image  GeoTIFF Data KML     NetCDF	Nr. of extreme events (#/year) TIFF Image  GeoTIFF Data KML     NetCDF

During the past years and months, I have processed the data product 2B31, a combined Precipitation Radar (PR) / TRMM Microwave Imager (TMI) rain-rate product with path-integrated attenuation at 4 km horizontal and 250 m vertical resolutions. Data are available at a nearly global scale for the past 12 years (1998 to 2009). I will continue to process these data and make them publically available.

Please follow the links to one of the following manuscript to obtain more information on data processing, calibration, and application examples :

Bookhagen, B. (in review): High resolution spatiotemporal distribution of rainfall seasonality and extreme events based on a 12-year TRMM time series, in review.

Bookhagen, B. and Burbank, D.W. (in press): Towards a complete Himalayan hydrological budget: The spatiotemporal distribution of snow melt and rainfall and their impact on river discharge, Journal of Geophysical Research-Earth Surface, doi:10.1029/2009jf001426.

Bookhagen, B. (2010): Appearance of extreme monsoonal rainfall events and their impact on erosion in the Himalaya, Geomatics, Natural Hazards, and Risk, 1, 1, pp. 37-50.

Bookhagen, B. and Strecker, M.R. (2010): Modern Andean rainfall variation during ENSO cycles and its impact on the Amazon Basin, in Neogene history of Western Amazonia and its significance for modern diversity, eds. C. Hoorn, H. Vonhof, F. Wesselingh, Blackwell Publishing, Oxford.

Bookhagen, B. and Strecker, M.R. (2008): Orographic barriers, high-resolution TRMM rainfall, hillslopes angles, and relief variations along the eastern Andes, Geophysical Research Letters, 35, L06403, doi:10.1029/2007GL032011. [download Data Repository]

Bookhagen, B. and Burbank, D.W. (2006): Topography, Relief, and TRMM-derived rainfall variations along the Himalaya, Geophys. Res. Lett., 33, L08405, doi:10:1029/2006GL026037. [download Data Repository] [selected as AGU Editor's Choice in May 2006]

Please send any comments and suggestions to Bodo Bookhagen (bodo@icess.ucsb.edu).

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Download GeoTIFF files

The GeoTIFF files contain world files (*.tfw) that allow direct importing into ESRI ArcGIS, Globalmapper, GRASS, ENVI, or other GIS and remote-sensing software packages. There is a zip file containing calibrated monthly data (January to December) and the calibrated mean annual data. The units are mm/month for the monthly data and mm/year for the annual data.