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Dataset

 

Chilbolton Facility for Atmospheric and Radio Research (CFARR) Grimm Optical Particle Counter data

Update Frequency: Continual
Status: Ongoing
Online Status: ONLINE
Publication State: Published
Publication Date: 2013-10-14
Download Stats: last 12 months

Abstract

The Chilbolton Facility for Atmopsheric and Radio Research's aerosol particle concentration measurements are provided by a 164DM environmental dust monitor manufactured by Grimm Aerosol Technik. A Lufft WS500 weather station is incorporated into the instrument to provide co-located meteorological measurements. Alternatively, particle mass concentrations can be produced as PM1, PM2.5 and PM10 measurements. The instrument measures the size and number density of aerosol molecules by using a 0.5m vertical inlet to suck ambient air into a measurement chamber. The scattering of a laser beam transmitted through the chamber is used to deduce size and concentration information. It is operated continuously on the roof of a cabin at a height of 8m above ground at the Chilbolton Observatory site. Measurements are taken every 60s, providinga erosol particle concentration (counts/m3) in 31 size bins in the range 0.265-34.0 um, air temperature, relative humidity, air pressure, wind speed and wind direction. The instrument is calibrated every 18 months by the manufacturer

Citable as:  Agnew, J. (2013): Chilbolton Facility for Atmospheric and Radio Research (CFARR) Grimm Optical Particle Counter data. NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/d8f637d7cd62db09b2d1720a3117bd23
Abbreviation: Not defined
Keywords: CFARR, particle counter

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_ee24c16c-34e6-11e3-82de-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
  • units: m-3
  • long_name: Number concentration of ambient aerosol in air as a function of diameter
  • standard_name: number_concentration_of_ambient_aerosol_in_air
  • var_id: number_concentration_of_ambient_aerosol_in_air
  • names: Number concentration of ambient aerosol in air as a function of diameter, number_concentration_of_ambient_aerosol_in_air
  • long_name: Range Of The First Cloud Base From The Lidar
  • names: Range Of The First Cloud Base From The Lidar
  • standard_name: air_pressure
  • units: Pa
  • long_name: air pressure measured by aerosol spectrometer weather station
  • var_id: air_pressure
  • names: air_pressure, air pressure measured by aerosol spectrometer weather station
  • standard_name: air_temperature
  • var_id: air_temperature
  • long_name: air temperature measured by aerosol spectrometer weather station
  • units: K
  • names: air_temperature, air temperature measured by aerosol spectrometer weather station
  • 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
  • long_name: particle diameter (in microns)
  • units: um
  • var_id: particle_diameter
  • names: particle diameter (in microns)
  • long_name: relative_humidity measured by aerosol spectrometer weather station
  • standard_name: relative_humidity
  • var_id: relative_humidity
  • units: %
  • names: relative_humidity, relative_humidity measured by aerosol spectrometer weather station
  • standard_name: wind_from_direction
  • long_name: wind direction measured by aerosol spectrometer sonic anemometer
  • units: degree
  • var_id: wind_from_direction
  • names: wind_from_direction, wind direction measured by aerosol spectrometer sonic anemometer
  • units: m/s
  • long_name: wind speed measured by aerosol spectrometer sonic anemometer
  • standard_name: wind_speed
  • var_id: wind_speed
  • names: wind_speed, wind speed measured by aerosol spectrometer sonic anemometer

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:
2013-05-22T23:00:00
End time:
Ongoing
Geographic Extent

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