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JAIVEX: Met Office operational unified model (UM) output

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2008-08-15
Download Stats: last 12 months
Dataset Size: 47 Files | 444MB


This dataset contains output from the Met Office operational unified model (UM) in support of the Joint Airborne IASI Validation Experiment (JAIVEX).

The Infrared Atmospheric Sounding Interferometer (IASI) instrument was launched on the METOP satellite in October 2006 (delayed from April 2006). The European Organisation for the Exploitation of Meteorological Satellites (Eumetsat) provided funds for the Facility for Airborne Atmospheric Measurement (FAAM) aircraft BAe146 to be involved in validation of IASI radiative transfer and some level 2 products. Flights were flown over oceans to coincide with METOP satellite overpasses. Further low level flights were flown over specific land calibration sites to characterise land surface emissivity. This dataset does not contain data collected by IASI on the Metop satellite.

Citable as:  Newman, S. (2008): JAIVEX: Met Office operational unified model (UM) output. NCAS British Atmospheric Data Centre, date of citation.
Abbreviation: Not defined
Keywords: JAIVEX, model, nwp, IASI, MetOp


Previous Info:
No news update for this record
Previously used record 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 obtained produced by the Met Office and supplied to the Joint Airborne IASI (Infrared Atmospheric Sounding Interferometer) Validation Experiment (JAIVEX) project team. Data also obtained by the Infrared Atmospheric Sounding Interferometer (IASI) instrument on the METOP satellite in April and September 2007. Data provided as is by FAAM JAIVEX campaign participants as the campaign unfolded for archiving at the BADC.

Data Quality:
Research Aircraft data
File Format:
Data are netCDF formatted

Related Documents

No documents related to this record were found.

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


  • units: Pa
  • long_name: Pressure
  • var_id: p_1
  • names: Pressure, p_1
  • long_name: Relative humidity
  • var_id: rh
  • names: Relative humidity, rh
  • units: kg kg-1
  • long_name: Specific humidity q
  • var_id: q
  • names: q, Specific humidity q
  • units: K
  • long_name: Temperature T
  • var_id: temp_2
  • names: Temperature T, temp_2
  • units: m
  • var_id: ht
  • units: degrees_north
  • var_id: latitude
  • units: degrees_east
  • var_id: longitude
  • units: level
  • var_id: msl
  • units: mbar
  • var_id: p
  • units: level
  • var_id: surface
  • var_id: t

Co-ordinate Variables

Temporal Range
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Geographic Extent

Related parties
Authors (1)
Principal Investigators (1)