This website uses cookies. By continuing to use this website you are agreeing to our use of cookies. 



Flood Risk for Extreme Events (FREE): Radiosonde ascents from various UK stations (June 2007-2009)

Update Frequency: Not Planned
Latest Data Update: 2010-04-23
Status: Completed
Online Status: ONLINE
Publication State: Published
Publication Date: 2010-09-22
Download Stats: last 12 months
Dataset Size: 27 Files | 532KB


The Exploitation of new data sources, data assimilation and ensemble techniques for storm and flood forecasting Project is a NERC Flood Risk for Extreme Events (FREE) Research Programme project (Round 1 - NE/E002137/1 - Duration January 2007 - April 2010) led by Prof AJ Illingworth, University of Reading. This project investigates possible methods of producing ensemble weather forecasts at high-resolution. These ensembles will be used with raingauge and river flow to improve methods of flood forecasting. The dataset includes radiosonde and wind profiles in England and Wales derived using Doppler radar returns from insects. The radial velocity measurements from insects were converted into VAD profiles by fitting a sinusoid to radial velocities at constant range. All measured profiles have been interpolated to the instrument location.

This dataset contains temperature and pressure measurements from radiosondes.

Citable as:  NERC FREE Campaign participants; Rennie, S.J. (2010): Flood Risk for Extreme Events (FREE): Radiosonde ascents from various UK stations (June 2007-2009). NCAS British Atmospheric Data Centre, date of citation.
Abbreviation: Not defined
Keywords: FREE, Radiosonde, temperature, pressure


Previous Info:
No news update for this record
Previously used record identifiers:
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: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data were collected using Doppler radar in England and Wales. All measured profiles have been interpolated to the instrument location.
Data and metadata files were supplied as is by the Department of Meteorology, University of Reading in 2010, to the BADC for archiving.

Data Quality:
File Format:
Data are netCDF formatted

Related Documents

No documents related to this record were found.

Process overview

This dataset was generated by instruments deployed on platforms as listed below.
Output Description


  • units: K
  • var_id: temp
  • standard_name: air_potential_temperature
  • long_name: air_potential_temperature
  • names: air_potential_temperature, air potential temperature
  • units: m
  • standard_name: height
  • var_id: height
  • long_name: model level height in m
  • names: height, model level height in m
  • units: m s-1
  • standard_name: eastward_wind
  • var_id: u
  • long_name: observed eastward_wind
  • names: eastward_wind, observed eastward_wind
  • units: m s-1
  • standard_name: northward_wind
  • var_id: v
  • long_name: observed northward_wind
  • names: northward_wind, observed northward_wind
  • units: 1
  • standard_name: relative_humidity
  • var_id: rh
  • long_name: relative_humidity
  • names: relative_humidity, relative humidity

Co-ordinate Variables

  • units: degree_north
  • standard_name: latitude
  • long_name: latitude
  • var_id: lat
  • names: latitude
  • units: degree_east
  • standard_name: longitude
  • long_name: longitude
  • var_id: lon
  • names: longitude
  • long_name: time
  • standard_name: time
  • var_id: time
  • names: time
Temporal Range
Start time:
End time:
Geographic Extent