Datasets
Interval/period: Sat, 01/01/1718 - Thu, 02/26/2026
Interval/period: Thu, 01/01/1750 - Fri, 01/01/2021
Interval/period: Wed, 01/01/1800 - Fri, 12/31/2100
and naval ships, drifting buoys and other platforms and vessels over
the global ocean. Data have been collated and harmonised and quality control checks have been performed, but no attempt
has been made to assess or correct for potential biases.
Data are provided for a range of commonly observed variables.
Interval/period: Tue, 01/01/1850 - Mon, 08/17/2026
Interval/period: Sun, 01/01/1860 - Mon, 12/31/2300
Interval/period: Sun, 01/01/1860 - Mon, 12/31/2300
Interval/period: Sun, 01/01/1860 - Mon, 12/31/2300
Interval/period: Sun, 01/01/1860 - Mon, 12/31/2300
CMIP6 data underpins the Intergovernmental Panel on Climate Change 6th Assessment Report. The use of these data is mostly aimed at:
addressing outstanding scientific questions that arose as part of the IPCC reporting process;
improving the understanding of the climate system;
Interval/period: Sun, 01/01/1860 - Mon, 12/31/2300
Interval/period: Sun, 01/01/1860 - Mon, 12/31/2300
Interval/period: Sun, 01/01/1860 - Mon, 12/31/2300
LAPrec1871 starts in 1871 and is based on data from 85 input series;
LAPrec1901 starts in 1901 and is based on data from 165 input series.
Interval/period: Sun, 01/01/1871 - Mon, 08/17/2026
to contain all available observations from balloons ascents through the atmosphere.
The main geophysical variables are temperature, humidity, and wind speed and wind direction,
as functions of atmospheric pressure levels. The observation platforms include pilot balloons, radiosondes, and ozonesondes.
The main observation data sources are:
- the NOAA Integrated Global Radiosonde Archive (IGRA version 2),
- the NCAR Upper-Air Database (UADB), and
Interval/period: Tue, 01/01/1901 - Tue, 12/31/2024
The total ozone estimates are based on solar UV radiation measurements made by ground-based spectrophotometers (Dobson or Brewer type spectrophotometers).
The vertical profiles of ozone concentration are estimated primarily using ozonesonde observations.
Data are available for 159 Dobson stations, 109 Brewer stations and 135 ozonesondes stations.
Interval/period: Tue, 01/01/1924 - Mon, 08/17/2026
The dataset is organised around two main variables:
the mean radiant temperature (MRT)
the universal thermal climate index (UTCI)
Interval/period: Fri, 12/01/1939 - Fri, 06/26/2026
Interval/period: Mon, 01/01/1940 - Fri, 12/31/2100
Data is available from 1940 onwards. ERA5 replaces the ERA-Interim reanalysis.
Interval/period: Mon, 01/01/1940 - Fri, 12/06/2024
Interval/period: Mon, 01/01/1940 - Fri, 05/09/2025
Data is available from 1940 onwards.
ERA5 replaces the ERA-Interim reanalysis.
Interval/period: Mon, 01/01/1940 - Thu, 06/25/2026
Data is available from 1940 onwards.
ERA5 replaces the ERA-Interim reanalysis.
Interval/period: Mon, 01/01/1940 - Thu, 06/25/2026
Data is available from 1940 onwards.
ERA5 replaces the ERA-Interim reanalysis.
Interval/period: Mon, 01/01/1940 - Fri, 05/01/2026
Data is available from 1940 onwards.
ERA5 replaces the ERA-Interim reanalysis.
Interval/period: Mon, 01/01/1940 - Fri, 05/01/2026
Data is available from 1940 onwards.
ERA5 replaces the ERA-Interim reanalysis.
Interval/period: Mon, 01/01/1940 - Thu, 06/25/2026
Data is available from 1940 onwards.
ERA5 replaces the ERA-Interim reanalysis.
Interval/period: Mon, 01/01/1940 - Thu, 06/25/2026
The dataset comprises two standardised drought indices:
- the Standardised Precipitation Index (SPI)
- the Standardised Precipitation-Evapotranspiration Index (SPEI).
Interval/period: Mon, 01/01/1940 - Fri, 05/01/2026