Dataset
WesCon: Cloud height measurements from the Met Office Vaisala CT25K Laser Ceilometer at Airfield Camp, Netheravon, v1.0 (20230426-20230919)
Abstract
Cloud height measurements from the Met Office Vaisala CT25K Laser Ceilometer deployed at Netheravon, Wiltshire (51.241°N, -1.777°W, 120 m amsl) in southern England during the summer of 2023. Netheravon formed a supersite for the Wessex Summertime Convection Experiment (WesCon)/WesCon - Observing the Evolving Structures of Turbulence (WOEST) field campaign.
The CT25K Laser ceilometer is a general-purpose cloud height sensor employing LIDAR technology for detection of clouds, precipitation and other obstructions to vision. The CT25K provides reliable determination of cloud height up to 25,000 feet (7.5 km) thus covering most heights where dense clouds appear. It is designed to detect up to three possible cloud layers.
The Vaisala CT25K laser ceilometer measures cloud height-or vertical visibility if the cloud base is obscured. The single-lens design also ensures reliable measurements in fog, rain, snow and haze.
To ensure optimal traceability and transparency of data, comprehensive metadata is included.
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(s): https://artefacts.ceda.ac.uk/licences/specific_licences/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 were processed and prepared by the Met Office instrument team before delivery to the NERC EDS Centre for Environmental Data Analysis (CEDA) for long term archival. |
| Data Quality: |
Data have been produced in accordance with standard Met Office observational practices. To ensure optimal traceability and transparency of data, comprehensive metadata is included.
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| File Format: |
NetCDF
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Related Documents
Process overview
Instrument/Platform pairings
| Met Office Cardington: Vaisala CT25k Ceilometer unit A | Deployed on: Airfield Camp, Netheravon |
| Output Description | None |
- units: m
- standard_name: cloud_base_altitude
- var_id: cloud_level1
- long_name: Altitude of first cloud layer detected
- units: m
- var_id: cloud_level2
- long_name: Altitude of second cloud layer detected
- units: m
- var_id: cloud_level3
- long_name: Altitude of third cloud layer detected
- var_id: backscatter
- long_name: backscatter
- units: (10000.sr.km)-1
- units: degrees
- var_id: tilt
- long_name: ceilometer tilt angle from vertical
- units: m
- var_id: range
- long_name: distance of range gate from ceilometer
- units: sr-1
- var_id: integrated_backscatter
- long_name: sum of detected backscatter
- var_id: time
- units: hours
- long_name: time of data point
Co-ordinate Variables
Temporal Range
2023-04-26T00:00:00
2023-09-19T23:59:59
Geographic Extent
51.2387° |
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-1.7778° |
-1.7778° |
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51.2387° |