Dataset
Eyjafjallajokull Volcanic Ash Cloud: Met Office LCBR data
Update Frequency: Not Planned
Latest Data Update: 2021-09-23
Status: Ongoing
Online Status: ONLINE
Publication State: Published
Publication Date: 2014-09-19
Download Stats: last 12 months
Dataset Size: 234.1K Files | 27GB
Abstract
The Icelandic Volcano, Eyjafjallajokull, started erupting on 14th April 2010. The volcanic ash cloud produced covered much of Northern Europe for several weeks causing extensive disruption to air travel. The UK and European atmospheric communities had many instruments - both airborne and ground-based, remote sensing and in-situ - taking measurements of the ash cloud throughout this period. This dataset contains measurements from Met Office's Laser Cloud Base Recorder (LCBR) network.
Citable as: Met Office (2014): Eyjafjallajokull Volcanic Ash Cloud: Met Office LCBR data. NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/3ef428e038744e0ab14d49641ae578bf
Abbreviation: Not defined
Keywords: Eyjafjallajokull, LCBR, Met Office
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: |
Restricted data: please submit an application using the REQUEST ACCESS link for access.
Use of these data is covered by the following licence: http://licences.ceda.ac.uk/image/data_access_condition/ukmo_agreement.pdf. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record. |
| Data lineage: |
Data collected by the Met Office's LCBR network. A copy of these data were made available to the British Atmospheric Data Centre (BADC) to assist the academic community during this volcanic ash event. |
| Data Quality: |
This is quick look unvetted data.
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| File Format: |
Data are GIF formatted
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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
Independent Instruments
| Met Office: Vaisala CT25k Ceilometer |
| Met Office: Lufft CHM15k Nimbus Ceilometer |
| Met Office: Vaisala CL31 Ceilometer |
| Output Description | None |
- long_name: 31 Bit ServiceCode
- var_id: error_ext
- names: 31 Bit ServiceCode
- units: counts
- long_name: Daylight correction factor, photons per shot
- var_id: base
- names: Daylight correction factor, photons per shot
- units: NAN
- long_name: NN1
- var_id: NN1
- names: NN1
- units: counts
- long_name: Standard Deviation raw signal, photons/ shot
- var_id: stddev
- names: Standard Deviation raw signal, photons/ shot
- units: m
- var_id: altitude
- long_name: altitude of ceilometer above mean sea level
- names: altitude of ceilometer above mean sea level
- units: ms
- var_id: average_time
- long_name: average time per record
- names: average time per record
- units: K
- long_name: detector temperature in K*10
- var_id: temp_det
- names: detector temperature in K*10
- units: K
- long_name: external temperature in K*10
- var_id: temp_ext
- names: external temperature in K*10
- units: Laser fife time
- long_name: h
- var_id: life_time
- names: h
- units: K
- long_name: internal temperature in K*10
- var_id: temp_int
- names: internal temperature in K*10
- units: unitless
- long_name: laser quality index - 255 max
- var_id: state_laser
- names: laser quality index - 255 max
- units: nm
- var_id: wavelength
- long_name: laser wavelength
- names: laser wavelength
- units: degrees_north
- var_id: latitude
- long_name: latitude of site
- names: latitude of site
- units: m
- long_name: length of range gate, binwidth
- var_id: range_gate
- names: length of range gate, binwidth
- var_id: beta_raw
- units: counts
- long_name: lidar backscatter raw data 1064 nm, photons per shot & noise
- names: lidar backscatter raw data 1064 nm, photons per shot & noise
- units: degrees_east
- var_id: longitude
- long_name: longitude of site
- names: longitude of site
- units: unitless
- long_name: number of laser pulses averaged per record
- var_id: laser_pulses
- names: number of laser pulses averaged per record
- units: unitless
- long_name: quality of detector signal - 255 max
- var_id: state_detector
- names: quality of detector signal - 255 max
- units: m
- var_id: range
- long_name: range from lidar to the bottom of each range gate
- names: range from lidar to the bottom of each range gate
- var_id: time
- long_name: time UTC
- names: time UTC
- units: unitless
- long_name: transmission of optics
- var_id: state_optics
- names: transmission of optics
Co-ordinate Variables
Coverage
Temporal Range
Start time:
2010-04-09T23:00:00
End time:
2010-08-29T23:00:00
Geographic Extent
70.0000° |
||
-20.0000° |
10.0000° |
|
40.0000° |
Related parties