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Met Office Atmospheric Angular Momentum data (1983-1993)

Update Frequency: Not Planned
Latest Data Update: 1997-02-20
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2007-01-05
Download Stats: last 12 months
Dataset Size: 23 Files | 3MB


The Effective Atmospheric Angular Momentum (EAAM) is a combined project from the Met Office and the European Centre for Medium Range Weather Forecasting (ECMWF). The data is of 3 angular momentum components of the mass and wind terms at 12 or 24 hourly intervals. The Met Office data are from 1983-1997. The corresponding ECMWF data cover the period 1979 to 1993. This dataset is public.

Citable as:  Met Office; European Centre for Medium-Range Weather Forecasts; Salstein, D. (2007): Met Office Atmospheric Angular Momentum data (1983-1993). NCAS British Atmospheric Data Centre, date of citation.
Abbreviation: EAAM-UKMO
Keywords: EAAM, angular momentum, Met Office


Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data files acquired as is from the International Earth Rotation Service's (IERS) Special Bureau for the Atmosphere (SBA), for archiving at the BADC.

Data Quality:
File Format:
Data are ASCII encoded, but refer to documentation on how these are structured

Process overview

This dataset was generated by the computation detailed below.

Met Office operational unified model (UM) deployed on Met Office Computer network


This computation involved: Met Office operational unified model (UM) deployed on Met Office Computer network. 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 1992. Since then, both its formulation and capabilities have been substantially enhanced.

Input Description


Output Description


Software Reference


  • long_name: Angular Momentum
  • names: Angular Momentum
  • long_name: Vorticity
  • gcmd_url:
  • gcmd_keyword: EARTH SCIENCE > Atmosphere > Atmospheric Winds > Vorticity
  • names: EARTH SCIENCE > Atmosphere > Atmospheric Winds > Vorticity,

Co-ordinate Variables

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