The COSPAR International Reference Atmosphere (CIRA) provides empirical models of atmospheric temperatures and densities as recommended by the Committee on Space Research (COSPAR). A global climatology of atmospheric temperature, zonal velocity and geopotential height derived from a combination of satellite, radiosonde and ground-based measurements and model data. The reference atmosphere extends from pole to pole and 0-120 km. The majority of the data are on a 5 degree latitude grid and approximately 2 km vertical resolution.
The lower part (0-120 km) of CIRA-86 consists of tables of the monthly mean values of temperature and zonal wind with almost global coverage (80N - 80S). Two sets of files were compiled, one in pressure coordinates including also the geopotential heights, and one in height coordinates
including also the pressure values. These tables were generated from several global data compilations including ground-based and satellite (Nimbus 5,6,7) measurements: Oort (1983), Labitzke et al. (1985). The lower part was merged with MSIS-86 at 120 km altitude. In general, hydrostatic and thermal wind balance are maintained at all levels. The model accurately reproduces most of the characteristic features of the atmosphere such as the equatorial wind and the general structure
of the tropopause, stratopause, and mesopause.
This data set is a corrected version of the original CIRA data files as provided by J. Barnett (July 1990) in ASCII format.
Additionally a netCDF version of the data were produced by BADC user and added to this dataset.
This dataset is public.
No news update for this record
|Previously used record identifiers:||
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: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
ASCII data files acquired as is from the NASA National Space Science Data Center. Netcdf file produced and provided by a BADC user.
Please refer to the following document for qualirty information: ftp://nssdcftp.gsfc.nasa.gov/models/atmospheric/cira/Please_read.txt
Original data are ASCII formatted. A netCDF version has also been prepared.
|CIRA help document (NSSDC - National Space Science Data Center)|
|NIMBUS-6 Pressure Modulator Radiometer (PMR)||Deployed on: NIMBUS 6 satellite|
Mobile platform operations
|Mobile Platform Operation 1||Mobile Platform Operation for: NIMBUS 6 satellite|
|NIMBUS 5 Selective Chopper Radiometer (SCR)||Deployed on: NIMBUS 5 satellite|
Mobile platform operations
|Mobile Platform Operation 1||Mobile Platform Operation for: NIMBUS 5 satellite|
Computation Element: 1
|Title||Mass-Spectrometer-Incoherent-Scatter-1986 (MSIS-86) model deployed on National Space Science Data Centre (NSSDC)|
|Abstract||This computation involved: Mass-Spectrometer-Incoherent-Scatter-1986 (MSIS-86) model deployed on National Space Science Data Centre (NSSDC).|
- var_id: climatology_bounds
- units: m
- standard_name: geopotential_height
- var_id: zg
- long_name: geopotential height
- names: geopotential_height, geopotential height
- long_name: pressure
- var_id: plev
- units: millibar
- standard_name: air_pressure
- names: air_pressure, pressure
- units: K
- var_id: ta
- standard_name: air_temperature
- long_name: temperature
- names: air_temperature, temperature
- long_name: time
- var_id: time
- names: time
- units: m/s
- long_name: zonal wind
- standard_name: eastward_wind
- var_id: ua
- names: eastward_wind, zonal wind
- standard_name: latitude
- var_id: latitude
- units: degrees_north
- names: latitude