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Met Office Unified Model (UM) Operational Output (October 2000 - January 2012)

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.

Simple

Date (Publication)
2013-12-10T03:01:44
Date (Creation)
2013-12-10T03:01:44
Identifier
https://catalogue.ceda.ac.uk/uuid/104e586395d1cc4af88f5b69d5501745
Identifier
NCAS British Atmospheric Data Centre (NCAS BADC) / 104e586395d1cc4af88f5b69d5501745
Author
  Met Office - author
Met Office , FitzRoy Road , Exeter , EX1 3PB ,
0370 900 0100
Custodian
  NCAS British Atmospheric Data Centre (NCAS BADC) - custodian
British Atmospheric Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK
+44(0)1235 446432
Distributor
  NCAS British Atmospheric Data Centre (NCAS BADC) - distributor
British Atmospheric Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK
+44(0)1235 446432
pointofContact
  NCAS British Atmospheric Data Centre (NCAS BADC) - point_of_contact
British Atmospheric Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK
+44(0)1235 446432
Publisher
  NCAS British Atmospheric Data Centre (NCAS BADC) - publisher
British Atmospheric Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK
+44(0)1235 446432
Maintenance and update frequency
unknown Unknown
Update scope
series Series
Keywords
  • Met Office
  • UM
  • NWP
GEMET - INSPIRE themes, version 1.0
  • atmospheric conditions
Access constraints
otherRestrictions Other restrictions
Other constraints
All data within this dataset collection are available to any registered CEDA user.
Use constraints
otherRestrictions Other restrictions
Other constraints
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.
Spatial representation type
grid Grid
Metadata language
EnglishEnglish
Topic category
  • Climatology, meteorology, atmosphere
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Begin date
1992-01-01T00:00:00
End date
2012-12-31T00:00:00
Unique resource identifier
WGS 84
Distribution format
  • Contact data centre for format details. ()

Distributor
  NCAS British Atmospheric Data Centre (NCAS BADC) - Data Center Contact
British Atmospheric Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK
+44(0)1235 446432
OnLine resource
CEDA Data Catalogue Page

Detail and access information for the resource

OnLine resource
BADC Doc: Met Office Operational NAE products

No further details.

OnLine resource
BADC Doc: The history of the Unified Model

No further details.

OnLine resource
Joint Centre for Mesoscale Meteorology (JCMM)

No further details.

OnLine resource
Met Office Unified Model

No further details.

OnLine resource
BADC Doc: Met. Office Operational NWP Products -Background Information

No further details.

OnLine resource
BADC Doc: Met Office Unified Model Naming Convention

No further details.

Hierarchy level
series Series

Conformance result

Date (Publication)
2010-12-08
Statement
Please see data lineage statements for each dataset within this collection for data lineage details.
File identifier
104e586395d1cc4af88f5b69d5501745 XML
Metadata language
EnglishEnglish
Character set
8-bit variable size UCS Transfer Format, based on ISO/IEC 10646 UTF8
Hierarchy level
series Series
Hierarchy level name
series
Date stamp
2025-11-15T03:26:53
Metadata standard name
UK GEMINI
Metadata standard version
2.3
Point of contact
  NCAS British Atmospheric Data Centre (NCAS BADC)
British Atmospheric Data Centre , STFC Rutherford Appleton Laboratory , Harwell Oxford , OX11 0QX , UK
+44(0)1235 446432
 
 

Overviews

Spatial extent

N
S
E
W
thumbnail


Keywords

GEMET - INSPIRE themes, version 1.0
atmospheric conditions

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