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Dataset

 

Chilbolton Facility for Atmospheric and Radio Research (CFARR) LI-COR LI-7500 Gas Analyser Data

Update Frequency: Continual
Status: Ongoing
Online Status: ONLINE
Publication State: Published
Publication Date: 2013-10-15
Download Stats: last 12 months

Abstract

Measurements from a LI-COR LI-7500 open path gas analyser operating at infra-red wavelengths deployed at the Chilbolton Facility for Atmospheric and Radio Research site in Chilbolton, Hampshire. The instrument measures the absorption due to carbon dioxide at specific wavelengths along its 0.125m measurement path. Internally-stored calibration data are used to convert these absorption values to a mole concentration for each gas. Carbon dioxde and water vapour mole concentrations from this instrument are also provided with sonic anemomenter data at a 20Hz data acquisition rate for eddy covariance calculations in another CFARR dataset. Measurements are taken at 10s intervals and are archived at this temporal resolution. Data are in netCDF.

Citable as:  Agnew, J. (2013): Chilbolton Facility for Atmospheric and Radio Research (CFARR) LI-COR LI-7500 Gas Analyser Data. NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/4d1262c57119adbcdb03a46b6ce3ca6a
Abbreviation: Not defined
Keywords: CFARR, gas analyser

Details

Previous Info:
No news update for this record
Previously used record identifiers:
http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__ACTIVITY_ab92d16e-35a8-11e3-b17c-00163e251233
Access rules:
Access to these data is available to any registered CEDA user. Please Login or Register for an account to gain access.
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.
Data lineage:

Data are collected by 4 radar systems, of which the largest is the 3 GHz Doppler radar (CAMRa), and 4 lidar systems, at Chilbolton Observatory, Hampshire.
Data are prepared by Chilbolton Facility for Atmospheric and Radio Research (CFARR) staff prior to submission to BADC for archiving.

Data Quality:
Data are checked by CFARR staff prior to submission to BADC
File Format:
Data are netCDF formatted

Related Documents

No documents related to this record were found.

Process overview

This dataset was generated by instruments deployed on platforms as listed below.
Output Description None
  • long_name: Absorptance of radiation due to carbon dioxide along 0.125m measurement path
  • var_id: carbon_dioxide_absorptance
  • names: Absorptance of radiation due to carbon dioxide along 0.125m measurement path
  • long_name: Absorptance of radiation due to water vapor along 0.125m measurement path
  • var_id: water_vapor_absorptance
  • names: Absorptance of radiation due to water vapor along 0.125m measurement path
  • long_name: Code indicating transmission of instrument window.
  • var_id: licor_agc_code
  • names: Code indicating transmission of instrument window.
  • long_name: Range Of The First Cloud Base From The Lidar
  • names: Range Of The First Cloud Base From The Lidar
  • long_name: air pressure measured by sensor in LI-7500 gas analyser
  • standard_name: air_pressure
  • units: Pa
  • var_id: air_pressure
  • names: air_pressure, air pressure measured by sensor in LI-7500 gas analyser
  • units: m
  • long_name: height of ground level above mean sea level (Ordnance Survey Great Britain)
  • standard_name: height
  • var_id: height
  • names: height, height of ground level above mean sea level (Ordnance Survey Great Britain)
  • units: m
  • long_name: height of instrument above ground
  • standard_name: height
  • var_id: height
  • names: height, height of instrument above ground
  • units: mol m-3
  • long_name: mole concentration of carbon dioxide in air
  • standard_name: mole_concentration_of_carbon_dioxide_in_air
  • var_id: mole_concentration_of_carbon_dioxide_in_air
  • names: mole concentration of carbon dioxide in air, mole_concentration_of_carbon_dioxide_in_air
  • standard_name: mole_concentration_of_water_vapor_in_air
  • var_id: mole_concentration_of_water_vapor_in_air
  • units: mol m-3
  • long_name: mole concentration of water vapor in air
  • names: mole concentration of water vapor in air, mole_concentration_of_water_vapor_in_air
  • units: mol m-3
  • var_id: raw_mole_concentration_of_carbon_dioxide_in_air
  • long_name: raw mole concentration of carbon dioxide in air
  • names: raw mole concentration of carbon dioxide in air
  • long_name: temperature measured inside instrument
  • var_id: instrument_temperature
  • units: K
  • names: temperature measured inside instrument

Co-ordinate Variables

  • standard_name: latitude
  • units: degree_north
  • long_name: latitude
  • var_id: latitude
  • names: latitude
  • units: degree_east
  • standard_name: longitude
  • long_name: longitude
  • var_id: longitude
  • names: longitude
  • standard_name: time
  • var_id: time
  • names: time
Coverage
Temporal Range
Start time:
2008-01-01T00:00:00
End time:
Ongoing
Geographic Extent

 
51.1450°
 
-1.4750°
 
-1.4750°
 
51.1450°
 
Related parties
Authors (1)