NERC Data Catalogue Service
HadEX3: Global land-surface climate extremes indices v3.0.3 (1901-2018)
HadEX3 is a land-surface dataset of climate extremes indices available on a 1.875 x 1.25 longitude-latitude grid. These 29 indices have been developed by the World Meteorological Organization (WMO) Expert Team on Climate Change Detection and Indices (ETCCDI). Daily precipitation, as well as maximum and minimum temperature observations, are used to calculate these indices at each station. The daily data, as well as indices, have been supplied, quality controlled and combined to make a gridded set of NetCDF files covering 1901-2018 (inclusive).
Spatial coverage is determined by the number of stations present at each time point as well as the spatial correlation structure between the stations for each index. The spatial coverage is lowest at the beginning of the dataset, rising until around 1960 where it plateaus, and then declines slightly after 2010.
All indices are available as annual quantities, with a subset also available on a monthly basis. A number of the indices use a reference period to determine thresholds. For these, we provide two versions, one set using 1961-1990 and another using the more recent 1981-2010 (these reference periods have been indicated in the file name as either 'ref-6190' or 'ref-8110').
Version 3.0.3 was added due to an error in how the Rx1day and Rx5day data were being handled for one of the West African data sources. More details can be found in the HadEX3 blog under 'Details/Docs' tab.
Simple
- Date (Publication)
- 2020-12-17T14:55:37
- Date (Creation)
- 2020-12-17T14:55:37
- Identifier
- Centre for Environmental Data Analysis (CEDA) / 087d4c75ace04e59a71d95c1c44918f9
- Maintenance and update frequency
- notPlanned Not planned
- Update scope
- dataset Dataset
- Keywords
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- HadEX3
- indicies
- temperature
- monthly
- annual
- land
- surface
- climate
- GEMET - INSPIRE themes, version 1.0
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- atmospheric conditions
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- Public data: access to these data is available to both registered and non-registered users.
- Use constraints
- otherRestrictions Other restrictions
- Spatial representation type
- grid Grid
- Metadata language
- EnglishEnglish
- Topic category
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- Climatology, meteorology, atmosphere
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- Begin date
- 1901-01-01T00:00:00
- End date
- 2018-12-31T23:59:59
- Unique resource identifier
- WGS 84
- Distribution format
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Data are provided in NetCDF formats.
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Data are provided in NetCDF formats.
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- OnLine resource
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CEDA Data Catalogue Page
Detail and access information for the resource
- OnLine resource
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DOWNLOAD
Download Data
- OnLine resource
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ETCCDI at Pacific Climate Impacts Consortium
No further details.
- OnLine resource
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HadEX3 blog
No further details.
- OnLine resource
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HadEX3 homepage (HadOBS)
No further details.
- OnLine resource
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HadEX3 Paper
No further details.
- OnLine resource
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Climdex
No further details.
- Hierarchy level
- dataset Dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
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Data were produced by the project team and supplied for archiving at the Centre for Environmental Data Analysis (CEDA).
HadEX3 is a dataset of gridded land-surface temperature and precipitation extremes indices and was produced by the Met Office Hadley Centre in collaboration with the ARC Centre of Excellence for Climate Extremes at the University of New South Wales and many data contributors from institutes and organisations around the world. The extremes indices were developed by the former WMO Expert Team on Climate Change Detection and Indices (ETCCDI) and derived from daily, station-based observations. These have undergone quality control checks and then been blended into a gridded product using an angular distance weighting routine.
- File identifier
- 087d4c75ace04e59a71d95c1c44918f9 XML
- Metadata language
- EnglishEnglish
- Character set
- 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 UTF8
- Parent identifier
- HadEX3: Global land-surface climate extremes indices caa9f45738d34e4cb1208ae0d72b5e79
- Hierarchy level
- dataset Dataset
- Date stamp
- 2025-11-15T03:20:49
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
Overviews
Spatial extent
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