Sources
Every number on this site is derived from the datasets marked “Used”. Anything unavailable is left blank rather than estimated.
| Dataset | Publisher | Type | Licence | Status |
|---|---|---|---|---|
| ERA5 post-processed daily statistics on single levels | Copernicus C3S / ECMWF | Reanalysis, 0.25°, 1940–present | CC-BY 4.0 | Used |
| ARCO-ERA5 hourly 2 m temperature (Google Cloud public dataset) | Google Cloud, a copy of ERA5 from Copernicus C3S / ECMWF | Reanalysis, hourly, 0.25° | CC-BY 4.0 (ERA5 licence) | Used (some years and the partial current year) |
| geoBoundaries India ADM1 (states/UTs) | DataMeet / Election Commission of India via geoBoundaries | 2011 boundaries | CC BY 2.5 IN | Used |
| geoBoundaries India ADM2 (districts) | Pathways Data / LGD via geoBoundaries | 2021 boundaries | ODbL 1.0 | Used |
| IMD heatwave definitions | India Meteorological Department | Definitions only | Cited | Referenced |
| Survey of India boundaries | Survey of India | — | Redistribution requires permission | Not used |
| IMD gridded temperature (1°) | IMD Pune | Observation-based grid | To be confirmed | Not used (coarse; terms unconfirmed) |
| Census of India 2011 | Registrar General & Census Commissioner | Population, 2011 | To be confirmed | Not used yet |