In this study, three satellite precipitation products (SPPs), namely, 1) GPM-IMERGV6 data, 2) TRMM 3B42 data, and 3) PERSIANN-CDR data, are used for evaluation. The gauge-based IMD gridded dataset is used as a benchmark for evaluating these SPPs. Detailed information about the precipitation data products is shown in Table 1.
Details of precipitation products with spatial/temporal resolutions and their source
| Dataset . | Long Name . | Coverage . | Period . | Spatial Resolution . | Temporal Resolution . | DOI . | Data Source . |
|---|---|---|---|---|---|---|---|
| IMD | Indian Meteorological Department | 20◦N–78◦ E | 1901–2018 | 0.25° | Daily | – | https://imdpune.gov.in/Clim_Pred_LRF_New/Grided_Data_Download.html |
| TRMM-3B42 | TRMM (TMPA) Precipitation L3 1 day 0.25 degree × 0.25 degree V7 | 50◦S-N | 1998-present | 0.25° | Daily | 10.5067/TRMM/TMPA/DAY/7 | https://disc.gsfc.nasa.gov/datasets/TRMM_3B42_Daily_7/summary |
| PERSIANN-CDR | Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks- Climate Data Record | 60◦S-N | 1983-present | 0.25° | Daily | 10.1175/BAMS-D-13-00068.1 | https://chrsdata.eng.uci.edu/#tabPERSIANNCDR |
| GPM-IMERG | GPM IMERG Final Precipitation L3 1 day 0.1 degree × 0.1 degree V06 (GPM_3IMERGDF) | 60◦S-N | 2000-present | 0.1° | Daily | 10.5067/GPM/IMERGDF/DAY/06 | https://disc.gsfc.nasa.gov/datasets/GPM_3IMERGDF_06/summary?keywords=%22IMERG%20final%22 |
| Dataset . | Long Name . | Coverage . | Period . | Spatial Resolution . | Temporal Resolution . | DOI . | Data Source . |
|---|---|---|---|---|---|---|---|
| IMD | Indian Meteorological Department | 20◦N–78◦ E | 1901–2018 | 0.25° | Daily | – | https://imdpune.gov.in/Clim_Pred_LRF_New/Grided_Data_Download.html |
| TRMM-3B42 | TRMM (TMPA) Precipitation L3 1 day 0.25 degree × 0.25 degree V7 | 50◦S-N | 1998-present | 0.25° | Daily | 10.5067/TRMM/TMPA/DAY/7 | https://disc.gsfc.nasa.gov/datasets/TRMM_3B42_Daily_7/summary |
| PERSIANN-CDR | Precipitation Estimation from Remotely Sensed Information using Artificial Neural Networks- Climate Data Record | 60◦S-N | 1983-present | 0.25° | Daily | 10.1175/BAMS-D-13-00068.1 | https://chrsdata.eng.uci.edu/#tabPERSIANNCDR |
| GPM-IMERG | GPM IMERG Final Precipitation L3 1 day 0.1 degree × 0.1 degree V06 (GPM_3IMERGDF) | 60◦S-N | 2000-present | 0.1° | Daily | 10.5067/GPM/IMERGDF/DAY/06 | https://disc.gsfc.nasa.gov/datasets/GPM_3IMERGDF_06/summary?keywords=%22IMERG%20final%22 |