104e586395d1cc4af88f5b69d5501745 English 8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 series series 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 2026-04-30T02:30:20 UK GEMINI 2.3 WGS 84 Met Office Unified Model (UM) Operational Output (October 2000 - January 2012) 2013-12-10T03:01:44 publication 2013-12-10T03:01:44 creation https://catalogue.ceda.ac.uk/uuid/104e586395d1cc4af88f5b69d5501745 104e586395d1cc4af88f5b69d5501745 NCAS British Atmospheric Data Centre (NCAS BADC) The Unified Model is the name given to the suite of atmospheric and oceanic numerical modelling software developed and used at the Met Office. The formulation of the model supports global and regional domains and is applicable to a wide range of temporal and spatial scales that allow it to be used for both numerical weather prediction and climate modelling as well as a variety of related research activities. The Unified Model was introduced into operational service in 1991. Since then, both its formulation and capabilities have been substantially enhanced. Data from the operational NWP (Numerical Weather Prediction) output from the Met Office Unified Model. These data are from both the Global and the North Atlantic European (NAE) part of the model. The NAE model runs on a grid centred around the UK. Analyses and intermediate forecast steps are stored to give an hourly time resolution for 6 hours following each analysis time-step. This archive only holds data to January 2012. A new NWP archive is being populated with data from January 2012. The dataset starts on 23 October 2000, and is ongoing. Around 1.6Gb of data are stored for each day. Analysis fields at 0,6,12,18Z are stored, along with all of the forecast fields from 1-6 hours from each analysis time. Mesoscale : lb[a,f][m,p]yyyymmddhh_STASHCODE_fh.pp Global: ag[a,f][m,p]yyyymmddhh_STASHCODE_fh.pp where yyyymmddhh is the year, month,day and assimilation time, STASHCODE is the STASHMASTER parameter code, fh is the forecast timestep (from the assimilation time), and pp indicates that the files are in binary "pp" format. The directory structure has also been changed to bring it in line with the BADC ECMWF holdings. The mesoscale files and global data are now stored under: /badc/ukmo-um/data/meso/lb/a[m,p] for the analysis fields /badc/ukmo-um/data/meso/lb/f[m,p] for the forecast fields /badc/ukmo-um/data/global/ag/a[m,p] for the analysis fields /badc/ukmo-um/data/global/ag/f[m,p] for the forecast fields Pre-2004 data are still available in the old format under /badc/ukmo-um/data/mesocale/[sm,mm] and /badc/ukmo-um/data/global/[mg,sg], although these will be phased out as the data are archived in the newer format. Met Office author 0370 900 0100 Met Office FitzRoy Road Exeter EX1 3PB enquiries@metoffice.gov.uk 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 unknown series Met Office UM NWP atmospheric conditions theme GEMET - INSPIRE themes, version 1.0 2008-06-01 publication otherRestrictions All data within this dataset collection are available to any registered CEDA user. otherRestrictions Under the following licence https://creativecommons.org/licenses/by-nc-sa/4.0/, appropriate use of these data may fall under personal, academic and policy 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 1992-01-01T00:00:00 2012-12-31T00:00:00 Contact data centre for format details. 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/104e586395d1cc4af88f5b69d5501745 CEDA Data Catalogue Page Detail and access information for the resource information https://artefacts.ceda.ac.uk/badc_datadocs/um/nae/nae.html BADC Doc: Met Office Operational NAE products No further details. information https://artefacts.ceda.ac.uk/badc_datadocs/um/umhist.html BADC Doc: The history of the Unified Model No further details. information http://www.met.rdg.ac.uk/Research/jcmm/jcmm.html Joint Centre for Mesoscale Meteorology (JCMM) No further details. information http://www.metoffice.gov.uk/research/modelling-systems/unified-model Met Office Unified Model No further details. information https://artefacts.ceda.ac.uk/badc_datadocs/um/umhelp.html BADC Doc: Met. Office Operational NWP Products -Background Information No further details. information https://artefacts.ceda.ac.uk/badc_datadocs/um/UM_Naming_Convention.html BADC Doc: Met Office Unified Model Naming Convention No further details. information series 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 Please see data lineage statements for each dataset within this collection for data lineage details.