Table 1.
Summary of all the precipitation products.
Fig 1.
Study region and 7 subdomains of ICP, KAL, SUM, PH, SUL, AUS, and PAP overlaid on the digital elevation model.
The map was created using Python package of Cartopy, with digital elevation model sourced from the Shuttle Radar Topography Mission (SRTM).
Fig 2.
Scatter plot of monthly mean daily precipitation between assessed products and SAOBS.
The color bar indicates the number density. (a) CPC, (b) CHIRPS, (c) ERA5, (d) IMERG, and (e) PERSIANN.
Fig 3.
PDFs and CDFs for SAOBS (blue) and the assessed products (red) of monthly mean daily precipitation (mm/day).
(a) CPC, (b) CHIRPS, (c) ERA5, (d) IMERG, and (e) PERSIANN.
Fig 4.
Spatial distribution of annual mean precipitation during the period 2001-2017.
(a) CPC, (b) CHIRPS, (c) ERA5, (d) IMERG, (e) PERSIANN, and (f) SAOBS.
Fig 5.
(a) Spatial distribution of seasonal mean daily precipitation from SAOBS observation. The seasonal RDP of the assess products during the period 2001-2017.
The gray crosses indicate the extremes (below -100% or above 100%). (b) CPC, (c) CHIRPS, (d) ERA5, (e) IMERG, and (f) PERSIANN [12].
Fig 6.
Monthly mean precipitation of CPC (red solid) and SAOBS (blue dashed) for each region.
Fig 7.
(a) Correlation coefficients and (b) root-mean square errors between SAOBS and the assess products for the monthly sequence of precipitation.