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Dataset

 

Chilbolton Facility for Atmospheric and Radio Research (CFARR) Vaisala PWD21 Present Weather Detector Data, Sparsholt College Site

Update Frequency: Not Planned
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2003-02-05
Download Stats: last 12 months

Abstract

Data were collected by the Chilbolton Facility for Atmospheric and Radio Research (CFARR) Present Weather Sensor from 28th of January 2005 to the 21st of May 2007 at Sparsholt College, Hampshire. The dataset contains reports of current weather conditions and those over the last hour using both NWS (National Weather Service)and WMO (World Meteorological Organistion) weather codes.

Citable as:  Science and Technology Facilities Council; Chilbolton Facility for Atmospheric and Radio Research; Natural Environment Research Council; Wrench, C.L. (2003): Chilbolton Facility for Atmospheric and Radio Research (CFARR) Vaisala PWD21 Present Weather Detector Data, Sparsholt College Site. NCAS British Atmospheric Data Centre, date of citation. https://catalogue.ceda.ac.uk/uuid/9f8e2e37fd9198764fd570ac830ccacb
Abbreviation: Not defined
Keywords: CFARR, Chilbolton, present weather, meteorology

Details

Previous Info:
No news update for this record
Previously used record identifiers:
http://badc.nerc.ac.uk/view/badc.nerc.ac.uk__ATOM__ACTIVITY_041ea248-1241-11df-85de-00e081470264
Access rules:
Access to these data is available to any registered CEDA user. Please Login or Register for an account to gain access.
Use of these data is covered by the following licence: 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 collected by 4 radar systems, of which the largest is the 3 GHz Doppler radar (CAMRa), and 4 lidar systems, at Chilbolton Observatory, Hampshire.
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.

Process overview

This dataset was generated by instruments deployed on platforms as listed below.
Output Description None
  • units: V
  • long_name: Actuating signal for transmitter LED control
  • var_id: ledi
  • names: Actuating signal for transmitter LED control
  • units: K
  • var_id: temperature
  • long_name: Ambient temperature at start of day
  • names: Ambient temperature at start of day
  • standard_name: rainfall_rate
  • var_id: rainfall_rate
  • units: mm/hr
  • long_name: Average rainfall rate over 1 minute period
  • names: Average rainfall rate over 1 minute period, rainfall_rate
  • long_name: Change in receiver backscatter measurement
  • var_id: rec_backscatter_change
  • units: s-1
  • names: Change in receiver backscatter measurement
  • long_name: Change in transmitter backscatter measurement
  • var_id: trans_backscatter_change
  • units: V
  • names: Change in transmitter backscatter measurement
  • long_name: Clean reference signal of receiver
  • var_id: rec_clean_ref
  • units: s-1
  • names: Clean reference signal of receiver
  • units: V
  • long_name: Clean reference signal of transmitter
  • var_id: trans_clean_ref
  • names: Clean reference signal of transmitter
  • var_id: rec_contam_alarm
  • units: s-1
  • long_name: Contamination alarm limit of receiver (change in signal)
  • names: Contamination alarm limit of receiver (change in signal)
  • long_name: Contamination alarm limit of transmitter (change in signal)
  • var_id: trans_contam_alarm
  • units: V
  • names: Contamination alarm limit of transmitter (change in signal)
  • units: s-1
  • long_name: Contamination warning limit of receiver (change in signal)
  • var_id: rec_contam_warning
  • names: Contamination warning limit of receiver (change in signal)
  • units: V
  • long_name: Contamination warning limit of transmitter (change in signal)
  • var_id: trans_contam_warning
  • names: Contamination warning limit of transmitter (change in signal)
  • long_name: Cumulative rainfall since start of day
  • var_id: rainfall_today
  • units: mm
  • names: Cumulative rainfall since start of day
  • units: s-1
  • long_name: Drift in offset signal
  • var_id: signal_drift
  • names: Drift in offset signal
  • long_name: Dry signal level of the DRD rain detector
  • var_id: dry_drd
  • names: Dry signal level of the DRD rain detector
  • long_name: Flag equal to 1 if icy precipitation measured during the day, equal to zero if none or -1 if missing
  • var_id: ice_precipitation
  • names: Flag equal to 1 if icy precipitation measured during the day, equal to zero if none or -1 if missing
  • long_name: Flag equal to 1 if icy precipitation measured during the day, otherwise equal to zero
  • var_id: ice_precipitation
  • names: Flag equal to 1 if icy precipitation measured during the day, otherwise equal to zero
  • long_name: Instant value of the DRD rain detector
  • var_id: drd
  • names: Instant value of the DRD rain detector
  • long_name: Instrument box temperature at start of day
  • var_id: unit_t
  • units: K
  • names: Instrument box temperature at start of day
  • units: s-1
  • long_name: Lowest frequency for visibility measurement signal
  • var_id: signal_offset
  • names: Lowest frequency for visibility measurement signal
  • units: s-1
  • long_name: Measured visibility raw signal
  • var_id: signal
  • names: Measured visibility raw signal
  • long_name: NWS code at present
  • var_id: nws_code
  • names: NWS code at present
  • long_name: Negative voltages of the DC/DC converter
  • var_id: m12
  • units: V
  • names: Negative voltages of the DC/DC converter
  • units: s-1
  • long_name: Offset reference frequency of instrument
  • var_id: offset_ref
  • names: Offset reference frequency of instrument
  • long_name: Positive voltages of the DC/DC converter
  • var_id: p12
  • units: V
  • names: Positive voltages of the DC/DC converter
  • long_name: Range Of The First Cloud Base From The Lidar
  • names: Range Of The First Cloud Base From The Lidar
  • units: V
  • long_name: Raw voltage
  • var_id: vbb
  • names: Raw voltage
  • units: s-1
  • long_name: Receiver backscatter measurement
  • var_id: rec_backscatter
  • names: Receiver backscatter measurement
  • long_name: Receiver signal from ambient light
  • var_id: ambl
  • units: V
  • names: Receiver signal from ambient light
  • long_name: Signal scaling factor
  • var_id: signal_scale
  • names: Signal scaling factor
  • long_name: Temperature of the DRD rain detector
  • var_id: drd_t
  • units: K
  • names: Temperature of the DRD rain detector
  • units: V
  • long_name: Transmitter backscatter measurement
  • var_id: trans_backscatter
  • names: Transmitter backscatter measurement
  • units: m
  • long_name: Visibility averaged over previous 10 minutes
  • var_id: vis_10min
  • names: Visibility averaged over previous 10 minutes
  • units: m
  • long_name: Visibility averaged over previous minute
  • var_id: vis_1min
  • names: Visibility averaged over previous minute
  • long_name: WMO synoptic code at present
  • var_id: wmo_synop_now
  • names: WMO synoptic code at present
  • long_name: WMO synoptic code over last 15 minutes
  • var_id: wmo_synop_15min
  • names: WMO synoptic code over last 15 minutes
  • long_name: WMO synoptic code over last 60 minutes
  • var_id: wmo_synop_60min
  • names: WMO synoptic code over last 60 minutes
  • units: m
  • long_name: height of instrument above ground level
  • var_id: height
  • names: height of instrument above ground level
  • units: m
  • long_name: height of site above mean sea level (Ordnance Survey Great Britain)
  • var_id: height_amsl
  • names: height of site above mean sea level (Ordnance Survey Great Britain)

Co-ordinate Variables

  • standard_name: latitude
  • units: degree_north
  • long_name: latitude
  • var_id: latitude
  • names: latitude
  • units: degree_east
  • standard_name: longitude
  • long_name: longitude
  • var_id: longitude
  • names: longitude
  • standard_name: time
  • var_id: time
  • names: time
Coverage
Temporal Range
Start time:
2005-01-28T00:00:00
End time:
2007-05-20T23:00:00
Geographic Extent

 
51.1450°
 
-1.4270°
 
-1.4270°
 
51.1450°