Dataset
Contrail Observations and Lifecycle Tracking (COBALT): vertical pointing from the NCAS Ka-Band Mobile Cloud Radar unit 1 deployed onboard NCAS Chilbolton Atmospheric Observatory (CAO), v1.0.3 (20241210-20251203)
Update Frequency: Not Planned
Latest Data Update: 2026-05-18
Status: Completed
Online Status: ONLINE
Publication State: Preview
Publication Date:
THIS RECORD HAS NOT BEEN PUBLISHED YET - PREVIEW ONLY!
Abstract
Vertical pointing (VPT) scan measurements from the NCAS Ka-Band Mobile Cloud Radar unit 1 deployed onboard NCAS Chilbolton Atmospheric Observatory (CAO). These observations were taken as part of Contrail Observations and Lifecycle Tracking (COBALT) between 20241210 and 20251203.
Data products from this deployment include: vpt
For further details of this deployment and the associated dataset please see the internal file metadata.
These data conform to the NCAS data standards and are available under the UK Government Open Licence agreement. Acknowledgement of NCAS as the data provider is required whenever and wherever these data are used.
Citable as: [ PROVISIONAL ] Walden, C.J. (9999): Contrail Observations and Lifecycle Tracking (COBALT): vertical pointing from the NCAS Ka-Band Mobile Cloud Radar unit 1 deployed onboard NCAS Chilbolton Atmospheric Observatory (CAO), v1.0.3 (20241210-20251203). NERC EDS Centre for Environmental Data Analysis, date of citation. https://catalogue.ceda.ac.uk/uuid/d6effc296d1f48e5a721ea9bd44860a8
Abbreviation: Not defined
Keywords: NCAS, observation measurements
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: |
Please contact the data centre for details on how to access these data.
For data use licensing information please contact: support@ceda.ac.uk |
| Data lineage: |
Data were processed and prepared by the project team before delivery to the Centre for Environmental Data Analysis (CEDA). |
| Data Quality: |
These data have been produced in accordance to standard NCAS observational practices. This includes instrument calibration and compliance checking of data against the NCAS Data Standards.
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| File Format: |
Data are netCDF 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
| NCAS Ka-Band Mobile Cloud Radar unit 1 instrument | Deployed on: NCAS Chilbolton Atmospheric Observatory (CAO) |
| Output Description | None |
- var_id: altitude
- units: metres
- long_name: Altitude
- standard_name: Altitude
- units: count
- var_id: sweep_start_ray_index
- long_name: Index of first ray in sweep, 0-based
- units: count
- var_id: sweep_end_ray_index
- long_name: Index of last ray in sweep, 0-based
- units: degrees_north
- var_id: latitude
- long_name: Latitude
- standard_name: Latitude
- units: degrees_east
- var_id: longitude
- long_name: Longitude
- standard_name: Longitude
- units: seconds
- var_id: prt
- long_name: Pulse repetition time
- units: seconds
- var_id: pulse_width
- long_name: Pulse width
- var_id: sweep_mode
- units:
- standard_name: sweep_mode
- long_name: Sweep mode
- units: count
- var_id: sweep_number
- standard_name: sweep_number
- long_name: Sweep number
- units: degrees
- var_id: fixed_angle
- standard_name: target_fixed_angle
- long_name: Target angle for sweep
- units: unitless
- var_id: time_coverage_start
- long_name: UTC time of first ray in the file
- units: unitless
- var_id: time_coverage_end
- long_name: UTC time of last ray in the file
- units: unitless
- var_id: time_reference
- long_name: UTC time reference
- units: unitless
- var_id: volume_number
- long_name: Volume number
- var_id: scan_rate
- units: degrees_per_second
- long_name: antenna angle scan rate
- var_id: antenna_transition
- units:
- long_name: antenna is in transition between sweeps
- units: degrees
- var_id: azimuth_correction
- long_name: azimuth correction applied
- units: degrees
- var_id: azimuth
- long_name: azimuth_angle_from_true_north
- units:
- var_id: RHOHX
- long_name: co- to cross-polar correlation ratio for horizontal transmitted polarization
- units: degrees
- var_id: PHIHX
- long_name: cross-polar differential phase
- var_id: range
- units: metres
- long_name: distance to centre of each range gate
- units: degrees
- var_id: elevation
- long_name: elevation_angle_from_horizontal_plane
- var_id: fixed_angle
- units: s-1
- var_id: frequency
- long_name: frequency of transmitted radiation
- standard_name: radiation_frequency
- units: m s-1
- var_id: WIDTH
- long_name: radar doppler spectrum width
- units: dBZ
- standard_name: equivalent_reflectivity_factor
- var_id: DBZ
- long_name: radar equivalent reflectivity factor
- units: dB
- var_id: LDR
- long_name: radar linear depolarization ratio
- units: dB
- var_id: SNR
- long_name: radar signal to noise ratio
- units: dBm
- var_id: radar_measured_transmit_power_h
- units: m s-1
- standard_name: radial_velocity_of_scatterers_away_from_instrument
- var_id: VEL
- long_name: radial velocity of scatterers away from instrument
- var_id: sweep_end_ray_index
- var_id: sweep_mode
- units:
- var_id: sweep_number
- var_id: sweep_start_ray_index
- var_id: target_scan_rate
- units: degrees_per_second
- long_name: target scan rate for sweep
Co-ordinate Variables
- standard_name: time
- var_id: time
- units: seconds
- long_name: time_since_time_reference
Coverage
Temporal Range
Start time:
2024-12-10T14:47:10
End time:
2025-12-03T00:07:19
Geographic Extent
51.1400° |
||
-1.4400° |
-1.4400° |
|
51.1400° |
Related parties