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Facilitating Access to Global Observing Systems Data and Information

GCOS Atmospheric Surface ECV*
Pressure

*over land, sea and ice

Data, Product, Metadata and Information Access
[ECV Matrix Main Page] [About the ECV Matrix] [Reference Documents] [Contact] [Updated June 3, 2011]

Non-Satellite or in-situ Satellite
  • GCOS Surface Network (GSN) Monthly Data (GSNMON) (NOAA/NCDC) is a global network of  approximately 1000 stations selected from the network of many thousands of existing meteorological stations. The GSN is intended to comprise the best possible set of land stations with a spacing of 2.5 to 5 degrees of latitude, thereby allowing coarse-mesh horizontal analyses for some basic parameters. These data are archived at NCDC after QC of the CLIMAT temperature and precipitation data have been completed (in general about 2 months after the end of the observation month) (see GSNMC data sets below) (data access) (metadata) (data documentation) (GSN program information) (contact)
  • GCOS Surface Network (GSN) Monitoring Centre Monthly Data (GSNMC) (DWD) In order to offer an earlier access to the GSN data, a so called "quick" GSN data set is provided as soon as it becomes available (about day 23 of the following month). This data set is marked by a 'Q' in the table (see data access below) and does NOT include any information about data quality. The quality flags included are all set by default to "1". The final GSNMC data set, market as 'F', is sent on a monthly basis to the WDCA for Meteorology in Asheville, NC, USA, after the QC of the CLIMAT temperature and precipitation data has been completed (in general about 2 months after the end of the observation month) (See the GSNMON dataset above).The GSN is a global network of  approximately 1000 stations selected from the network of many thousands of existing meteorological stations. The GSN is intended to comprise the best possible set of land stations with a spacing of 2.5 to 5 degrees of latitude, thereby allowing coarse-mesh horizontal analyses for some basic parameters. (data access) (products) (metadata) (data documentation) (GSN program information) (contact)
  • GHCN DAILY Version 2.1 - Daily Global Historical Climatology Network Data (NOAA/NCDC) is a database of temperature, precipitation and pressure records managed by the National Climatic Data Center, Arizona State University and the Carbon Dioxide Information Analysis Center. The aggregate data are collected from many continuously reporting fixed stations at the Earth's surface and represent the input of approximately: 6000 temperature stations, 7500 precipitation stations, 2000 pressure stations. This work is often used as a foundation for reconstructing past global temperatures, and is used in two of the official reconstructions, that prepared by the NCDC, and that prepared by NASA as its Goddard Institute for Space Studies (GISS) temperature set. The earliest data included in the database were collected in 1697. (data access) (metadata) (data documentation) (GISTEMP products using GHCN data) (contact)
  • GHCNM Version 2.0 and 3.0 beta - Monthly Global Historical Climatology Network Data (NOAA/NCDC) is a database of temperature, precipitation and pressure records managed by the National Climatic Data Center, Arizona State University and the Carbon Dioxide Information Analysis Center. The aggregate data are collected from many continuously reporting fixed stations at the Earth's surface and represent the input of approximately: 6000 temperature stations, 7500 precipitation stations, 2000 pressure stations. This work is often used as a foundation for reconstructing past global temperatures, and is used in two of the official reconstructions, that prepared by the NCDC, and that prepared by NASA as its Goddard Institute for Space Studies (GISS) temperature set. The earliest data included in the database were collected in 1697. (version 3.0 beta data access) (version 3.0 beta ftp download) (version 2.0 data access) (version 2.0 ftp download) (metadata) (data documentation) (contact)
  • Global Surface Summary of Day Data (GSOD) (NOAA/NCDC) is produced by the NOAA/NCDC. The input data used in building these daily summaries are the Integrated Surface Data (ISD), which includes global data obtained from the USAF Climatology Center. The latest daily summary data are normally available 1-2 days after the date-time of the observations used in the daily summaries.  The online data files begin with 1929, and are now at the Version 7 software level.  Over 9000 stations' data are typically available.  Includes GSN data submitted by GTS but not by individual countries (variables) (data access) (metadata) (station list) (data documentation) (contact)
  • Voluntary Observing Ships (VOS) Observations (NOAA/NDBC) Volunteer crew members on nearly 1,000 ships around the world observe the weather at their location, encode each observation in a standard format, and send the data over satellite or radio to the many national meteorological services that have responsibility for marine weather forecasts. The US VOS Project services about one quarter of the world's VOS fleet, providing ships' crews with weather observer training, handbooks and forms, observation encoding software, barometer calibration, the Mariners Weather Log, and weather observing tools. Located in the major ports around the country, Port Meteorological Officers are the VOS Project's field representatives and primary points of contact for ships. (variables) (data access) (metadata) (data documentation) (Program Information) (contact)