fce4e4ff02a081754de71a4a62a14927 English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 5dfef196ad9f2e1aebf9c3ff4f2dd091 dataset NCAS British Atmospheric Data Centre (NCAS BADC) +44(0)1235 446432 British Atmospheric Data Centre STFC Rutherford Appleton Laboratory Harwell Oxford OX11 0QX UK badc@rl.ac.uk pointOfContact 2026-05-10T02:01:58 UK GEMINI 2.3 WGS 84 Met Office Hadley Centre Global Gridded Mean Sea Level Pressure (HadSLP1) data (1871-1998) 2007-02-03T01:33:29 publication 2007-02-03T01:33:29 creation https://catalogue.ceda.ac.uk/uuid/fce4e4ff02a081754de71a4a62a14927 fce4e4ff02a081754de71a4a62a14927 NCAS British Atmospheric Data Centre (NCAS BADC) The Met Office Hadley Centre produced the HadSLP1 dataset which replaces the Global Mean Sea Level Pressure (GMSLP) data sets, and is a unique combination of monthly globally-complete fields of land and sea pressure observations a 5 degree latitude-longitude grid from 1871 to 1998. The advantages of HadSLP1 over GMSLP2 are an improved land station data base, new interpolation scheme and the incorporation of local detail while safeguarding against random errors. Like GMSLP2, HadSLP1 was developed by Tracy Basnett and David Parker, in collaboration with R.J. Allan (previously at CSIRO and now at the Met Office) and M.J. Salinger (NIWA). Marine observations were taken from the Met Office Marine Data Bank (MDB) and from the NOAA Comprehensive Ocean-Atmosphere Data Set (COADS) (Woodruff et al, 1987). The MDB data were given priority in the blend, which is described in Basnett and Parker (1997). Land observations are a combination of data obtained from CSIRO (Australia), NIWA (New Zealand), CRU (University of East Anglia), GHCN, and operationally-received "CLIMAT" messages. The latter were used mainly for updating station series and for the Arctic. HadSLP1 pressures are reconstructed using a reduced-space optimal interpolation procedure, followed by superposition of quality-improved gridded observations onto the reconstructions to restore local detail. Basnett, Tracy Unavailable author Unavailable author Parker, Douglas E. Unavailable author Unavailable author Allan, Robert J. Unavailable author Unavailable author Sallinger, M.J Unavailable author Unavailable author NCAS British Atmospheric Data Centre (NCAS BADC) custodian +44(0)1235 446432 British Atmospheric Data Centre STFC Rutherford Appleton Laboratory Harwell Oxford OX11 0QX UK badc@rl.ac.uk custodian NCAS British Atmospheric Data Centre (NCAS BADC) distributor +44(0)1235 446432 British Atmospheric Data Centre STFC Rutherford Appleton Laboratory Harwell Oxford OX11 0QX UK badc@rl.ac.uk distributor NCAS British Atmospheric Data Centre (NCAS BADC) point_of_contact +44(0)1235 446432 British Atmospheric Data Centre STFC Rutherford Appleton Laboratory Harwell Oxford OX11 0QX UK badc@rl.ac.uk pointofContact NCAS British Atmospheric Data Centre (NCAS BADC) publisher +44(0)1235 446432 British Atmospheric Data Centre STFC Rutherford Appleton Laboratory Harwell Oxford OX11 0QX UK badc@rl.ac.uk publisher notPlanned dataset Met Office Hadley MSLP HadSLP GMSLP atmospheric conditions theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication otherRestrictions Restricted data: please submit an application using the REQUEST ACCESS link for access. otherRestrictions Under the following licence https://artefacts.ceda.ac.uk/licences/specific_licences/ukmo_agreement.pdf, appropriate use of these data may fall under academic use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. grid English climatologyMeteorologyAtmosphere -180.0 180.0 -90.0 90.0 1871-01-01T00:00:00 1998-12-31T00:00:00 ASCII NCAS British Atmospheric Data Centre (NCAS BADC) Data Center Contact +44(0)1235 446432 British Atmospheric Data Centre STFC Rutherford Appleton Laboratory Harwell Oxford OX11 0QX UK badc@rl.ac.uk distributor https://catalogue.ceda.ac.uk/uuid/fce4e4ff02a081754de71a4a62a14927 CEDA Data Catalogue Page Detail and access information for the resource information http://data.ceda.ac.uk/badc/ukmo-gmslp/data/HadSLP1/ DOWNLOAD Download Data download http://data.ceda.ac.uk/badc/ukmo-gmslp/doc/Read_instructions_HADSLP1_5dg.txt HadSLP1 File Format explained No further details. information https://zenodo.org/record/7356543 Basnett, T.A. and Parker,D.E., 1997 Report - Development of the Global Mean Sea Level Pressure Data Set (GMSLP2) No further details. information dataset Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 Data files from 1871 to 1998 acquired from the Hadley Centre directly, as is, and stored at the BADC.