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Ask to compare a named historical month or a past ENSO episode; this source does not provide ENSO forecasts.","example_questions":["Show land-air-temperature anomaly by country in December 2015.","Show land-air-temperature anomalies by country in December 2015, during the 2015-16 El Nino."],"permission":"paid","license_policy":{"schema_version":"1.2.0","license":"Copernicus C3S Licence to Use Copernicus Products","permission":"paid","resolution_status":"resolved","policy_source":"build/catalog/license_permission_crosswalk.csv","reason":"Copernicus product licence allows reuse, including commercial use, when attribution is preserved.","redistribution":"allowed","share_alike":"no","attribution_required":true,"attribution_template":"Generated using Copernicus Climate Change Service information {vintage?}. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.","source_url":"https://cds.climate.copernicus.eu/licences/licence-to-use-copernicus-products","reviewed_on":"2026-09-10","notes":"Official licence permits use for any lawful purpose, including distribution, adaptation, modification, and combination, subject to attribution and third-party exceptions.","reuse_obligations":{"copyleft_scope":null,"required_public_license":null,"source_offer_required":null}},"provenance_fingerprint":"4b668610fb7c287228572cece5b22e71168fe04d5fc2d86a6f31764c2a0bcb43","license_conditions":{"permission":"paid","redistribution":"allowed","share_alike":"no"},"attribution_text":"Generated using Copernicus Climate Change Service information. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains.","attribution_lines":["Generated using Copernicus Climate Change Service information. Neither the European Commission nor ECMWF is responsible for any use that may be made of the Copernicus information or data it contains."],"citation":{"style":"daedalmap-1","entries":[{"text":"Copernicus Climate Change Service and ECMWF. ERA5-Land Temperature. Copernicus C3S Licence to Use Copernicus Products. https://cds.climate.copernicus.eu/datasets/reanalysis-era5-single-levels-monthly-means.","role":"data","parts":{"role":"data","agency":"Copernicus Climate Change Service and ECMWF","title":"ERA5-Land Temperature","vintage":"","url":"https://cds.climate.copernicus.eu/datasets/reanalysis-era5-single-levels-monthly-means","license":"Copernicus C3S Licence to Use Copernicus Products"}}],"text":"Copernicus Climate Change Service and ECMWF. ERA5-Land Temperature. Copernicus C3S Licence to Use Copernicus Products. https://cds.climate.copernicus.eu/datasets/reanalysis-era5-single-levels-monthly-means."},"last_updated":"2025-12-31"}