Data from the Upper Troposphere Lower Stratosphere (UTLS) programme's round 1 research project "Dynamics and Chemistry of Frontal Zones" (DCFZ). DCFZ investigated the role of frontal shear zones in determining upper tropospheric chemical distributions. This dataset contains Chilbolton radar images.

The Convective Storm Initiation Project (CSIP) aimed to further the understanding of the mechanisms responsible for the initiation of precipitating convection in the maritime environment of southern England; i.e. to understand why convective clouds form and develop into precipitating clouds in a particular location. Data have been collected from the 13th June 2005 to the 25th August 2005 by the Ultra-violet Raman lidar at Chilbolton Observatory, Hampshire. The dataset contains measurements of attenuated backscatter coefficients of aerosols within the atmosphere, and humidity mixing ratios. Plots of the attenuated backscatter coefficient, and of the humidity mixing ratios, at different heights are also available.

The Convective Storm Initiation Project (CSIP) aimed to further the understanding of the mechanisms responsible for the initiation of precipitating convection in the maritime environment of southern England; i.e. to understand why convective clouds form and develop into precipitating clouds in a particular location. Data have been collected from the 6th July 2004 to the 29th July 2004 by the Ultra-violet Raman lidar at Chilbolton Observatory, Hampshire. The dataset contains measurements of attenuated backscatter coefficients of aerosols within the atmosphere, and humidity mixing ratios. Plots of the attenuated backscatter coefficient, and of the humidity mixing ratios, at different heights are also available.

The Convective and Orographically-induced Precipitation Study (COPS) was an international field campaign initiated by the German Research Foundation (DFG). This dataset collection contains vertical wind profiler measurements. The UK component of the campaign involved flights by the FAAM aircraft and the deployment of a number of the UK Universities' Facility for Atmospheric Measurement (UFAM) mobile instruments in summer 2007. These included a Doppler Lidar, a radiometer, a wind profiler, two sodars, an aerosol monitoring suite, a network of automatic weather stations and two radiosonde stations. The objective was to identify the physical and chemical processes responsible for the deficiencies in quantitative precipitation forecasting (QPF) over low-mountain regions with the goal of improving their model representation, and thus improve forecasts. For the field experiment, a region in southwestern Germany/eastern France was selected where severe thunderstorm activity is frequent in summer with significant amounts of precipitation and risk of flash flood events, while the skill of numerical weather forecasts in the region is particularly low. This dataset includes measurements of wind speeds and wind directions and aerosol concentrations.

The Sparsholt College-South Wonston water station radio links data describe signal levels of several links at a frequency of 38 Ghz, which covered a path of 5km from the South Wonston water tower near the A34 to Sparsholt College. The data were collected between October 2002 and April 2005. The radio link between Sparsholt college and the Wonston water tower is used to investigate the effects of rain and sleet on radio signals.

The data were collected by a Doppler Sodar, operated by the University of Leeds, at Achern, Germany. The data provided are 15 minute averages of backscatter, horizontal wind and vertical wind. The dataset contains the following measurements: Wind speed Wind direction Eastward wind Backscatter Upward air velocity Height Northward wind.

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.

The University of Leeds radiosonde data contain measurements collected by a radiosonde at Archern and Hornisgrinde, Germany from the 19th of April 2007 to the 30th of August 2007. The dataset contains measurements of air temperature, air pressure, wind speed and wind direction, and relative humidity. The dataset contains the following measurements: Scaled logarithmic pressure (4096 * ln P) Air temperature (K Relative humidity (percent) Northward wind (m s-1) Eastward_wind (m s-1) Altitude (m) Air pressure (hPa) Dew point temperature (K) Humidity mixing ratio (g/kg) Wind from direction (degree) Wind speed (m s-1) Sonde azimuth (degree) Sonde distance (m) Longitude (degree_east) Latitude (degree_north)

Data are of sky images collected by an AXIS 2100 digital camera over Chilbolton, Hampshire. The data collected are from 21st of January 2005 to the present and are available in avi movie files and tar files of jpeg images. Images are taken every 15 seconds.

Data were collected by the Chilbolton Facility for Atmospheric and Radio Research (CFARR) Visible Radiometer from 10th of May 2001 to the present at Chilbolton, Hampshire. The dataset contains measurements of Calibrated brightness temperature measured at 21 frequencies (selectable) between 22.0 and 30.0 GHz, water vapour profile, and integrated water vapour (IWV). Data are produced once every approximately 2 minutes.