3/27/2023 0 Comments Precipitation totals by dayPrecipitation values are scaled by a factor of x10 (0.1mm) for 30 minute, 3 hour, 1 day files.30 minute, 3 hour, and 1 day files are all available in the same directory, with the timespan indicated within the filename (e.g.Read documentation for using IMERG GeoTIFF + Worldfiles. Data access is also available via FTPS, click here for instructions.Click here to register for PPS data access.To generate data visualizations, click the blue "Giovanni" button.On GES DISC site, see gray "Data Access" box in top right for download links.Visualization, GeoTIFF, HDF5, NetCDF, OPeNDAP Precipitation Rate (mm/hr) / precipitationCal As of IMERG V05B, full coverage is provided for the latitudes of 60°N-60°S, while the remaining upper and lower latitudes extending to 90° are considered "partial coverage".The IMERG dataset now includes TRMM-era data going back to June 2000. The PPS has completed reprocessing GPM IMERG data for IMERG V06B.The main difference between the IMERG Early and Late Run is that Early only has forward propagation (which basically amounts to extrapolation) due to the short latency, while the Late has both forward and backward propagation (allowing interpolation). The final step uses monthly gauge data to create research-level products (IMERG Final Run). The system is run several times for each observation time, first giving a quick estimate (IMERG Early Run) and successively providing better estimates as more data arrive (IMERG Late Run). 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.
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