Dataset
Met Office Lidar data for four sites in the Met Office lidar network observing ex-hurricane Ophelia on 15th and 16th October 2017.
Abstract
This dataset contains Raman Lidar data from four UK sites in the Met Office Volcanic Ash lidar network for the 15th and 16th October 2017 when ex-hurricane Ophelia passed to the West of the British Isles, bringing dust from the Sahara and smoke from Portuguese forest fires that was observable to the naked eye in the UK. The sites included are Camborne, Rhyl, Watnall, and Loftus.
The data files contain profiles for co-polar, cross-polar and Raman backscatter data. The data support the following publication: Osborne, M., Adam, M., Buxmann, J., Sugier, J., Marenco, F., and Haywood, J.: Saharan dust and biomass burning aerosols during ex-hurricane Ophelia: validation of the new UK lidar and sun-photometer network, Atmos. Chem. Phys. Discuss., https://doi.org/10.5194/acp-2018-695.
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| 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: |
Recorded by Met Office lidars, transmitted to Met Office HQ and read from binary files to netCDF then uploaded to CEDA. Dead time correction and bin shifting applied. No other corrections applied. |
| Data Quality: |
The single calibration constant within each file was taken within six months of the data date
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| File Format: |
Data are NetCDF formatted.
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Process overview
Instrument/Platform pairings
| Output Description | None |
- var_id: range
- units: km
- long_name: Distance from transmitter to the centre of range gate
- names: Distance from transmitter to the centre of range gate
- var_id: laser_energy
- long_name: Mean laser tx energy per pulse measured by photodiode
- units: mJ/pulse
- names: Mean laser tx energy per pulse measured by photodiode
- units: arbitrary units
- long_name: Raman - analogue
- var_id: r_an
- names: Raman - analogue
- units: arbitrary units
- long_name: Raman - photon counting
- var_id: r_pc
- names: Raman - photon counting
- units: 1
- long_name: Total number of shots with this flashlamp
- var_id: total_shots
- names: Total number of shots with this flashlamp
- units: arbitrary units
- long_name: parallel elastic signal - analogue
- var_id: s_an_par
- names: parallel elastic signal - analogue
- units: arbitrary units
- long_name: parallel elastic signal - photon counting
- var_id: s_pc_par
- names: parallel elastic signal - photon counting
- units: arbitrary units
- long_name: perpendicular elastic signal - analogue
- var_id: s_an_per
- names: perpendicular elastic signal - analogue
- units: arbitrary units
- long_name: perpendicular elastic signal - photon counting
- var_id: s_pc_per
- names: perpendicular elastic signal - photon counting
- long_name: resolution
- var_id: resolution
- names: resolution
Co-ordinate Variables
- standard_name: time
- var_id: time
- long_name: Middle of measurement interval - UTC
- names: time, Middle of measurement interval - UTC
Temporal Range
2017-10-15T00:00:00
2017-10-16T23:59:59
Geographic Extent
54.5531° |
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-5.3000° |
0.8894° |
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50.2300° |