Dataset
APPRAISE ADIENT and EM25: Chilbolton Facility for Atmospheric and Radio Research (CFARR) UV Raman Lidar Data
Update Frequency: Not Planned
Latest Data Update: 2010-05-21
Status: Completed
Online Status: ONLINE
Publication State: Working
Publication Date:
Download Stats: last 12 months
Dataset Size: 33 Files | 34MB
Abstract
The objective of the ADIENT (Appraising the Direct Impacts of aErosol oN climaTe) project was quantifying the direct effect of aerosols on the Earth's radiation budget, via scattering and/or absorption of radiation.
The Emissions around the M25 motorway (EM25) campaign took place over the megacity of London in the United Kingdom in June 2009 with the aim of characterising trace gas and aerosol composition and properties entering and emitted from the urban region
Data have been collected by the Ultra-violet Raman lidar at Chilbolton Observatory, Hampshire. The dataset contains measurements of attenuated backscatter coefficients of aerosols within the atmosphere, and humidity mixing ratios. Plots of the attenuated backscatter coefficient, and of the humidity mixing ratios, at different heights are also available.
Citable as: Science and Technology Facilities Council; Chilbolton Facility for Atmospheric and Radio Research; Natural Environment Research Council; Wrench, C.L.; Agnew, J. (9999): APPRAISE ADIENT and EM25: Chilbolton Facility for Atmospheric and Radio Research (CFARR) UV Raman Lidar Data. NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/abc997f656d64ad384dab3ea88a3441f/
Abbreviation: Not defined
Keywords: ADIENT, EM25, CFARR, Chilbolton, Raman lidar, UV
Details
| 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(s): 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 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.
Instrument/Platform pairings
| Chilbolton Facility for Atmospheric and Radio Research (CFARR) 355 nm Ultra Violet Raman Lidar | Deployed on: NCAS Chilbolton Atmospheric Observatory (CAO) |
| Output Description | None |
- units: nm
- long_name: 1st received wavelength of lidar (water vapour Raman scattering)
- var_id: receive_wavelength_1
- units: nm
- var_id: receive_wavelength_2
- long_name: 2nd received wavelength of lidar (nitrogen and oxygen rotational Raman scattering)
- units: m
- long_name: Diameter of receiver mirror of lidar
- var_id: lidar_mirror_diameter
- units: m
- long_name: Diameter of transmitted laser beam at lidar system
- var_id: lidar_beam_diameter
- units: degree
- long_name: Divergence of transmitted laser beam
- var_id: lidar_beam_divergence
- units: degree
- long_name: Elevation of lidar beam with respect to horizontal surface
- var_id: lidar_beam_elevation
- units: degree
- long_name: Field of view of lidar receiver
- var_id: lidar_field_of_view
- units: m
- long_name: Height of lidar above mean sea level (Ordnance Survey Great Britain)
- var_id: lidar_height_amsl
- units: m
- long_name: Height of measurement with respect to lidar system
- standard_name: height
- var_id: height
- units: Hz
- long_name: Laser pulse repetition rate
- var_id: lidar_pulse_frequency
- units: m-1sr-1
- long_name: Lidar backscattering coefficient attenuated by molecular and aerosol scattering
- var_id: atten_lidar_backscatter_coeff
- standard_name: humidity_mixing_ratio
- long_name: Mass mixing ratio of water vapour
- var_id: humidity_mixing_ratio
- units:
- units: J
- long_name: Nominal laser pulse energy
- var_id: lidar_pulse_energy
- long_name: Range Of The First Cloud Base From The Lidar
- names: Range Of The First Cloud Base From The Lidar
- units: nm
- var_id: receive_wavelength_1
- long_name: Received wavelength of lidar (elastic backscatter)
- units: seconds
- long_name: Total acquisition time for single profile
- var_id: acquisition_time
- units: nm
- long_name: Transmitted wavelength of lidar
- var_id: transmit_wavelength
Co-ordinate Variables
- units: degree_north
- standard_name: latitude
- var_id: latitude
- long_name: Latitude coordinate of the lidar
- units: degree_east
- standard_name: longitude
- var_id: longitude
- long_name: Longitude coordinate of the lidar
- standard_name: time
- var_id: time
- long_name: Time at end of acquisition period
- standard_name: time
- var_id: time
- long_name: Time at start of acquisition period
Coverage
Temporal Range
Start time:
2009-05-31T23:00:00
End time:
2009-06-25T22:59:59
Geographic Extent
51.1450° |
||
-1.4370° |
-1.4370° |
|
51.1450° |
Related parties