Keyword

lidar

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  • Data were collected from the 14th of February 2009 to the present by the Leosphere EZ polarization lidar at Chilbolton Observatory, Hampshire. The dataset contains plots of the attenuated backscatter coefficient at different heights, and of the depolarization ratio of particles. The dataset contains: Plots of the attenuated backscatter coefficient at different heights, and of the depolarization ratio of particles. Atmospheric backscatter light intensity (raw data) Solid angle and background calibrated data Vertical backscatter and extinction profile Vertical Aerosol profile Planetary Boundary Layer and residual layer heights Semi-transparent cloud height and top Optical depth integrated over whole Lidar range Dynamic structure of the atmosphere (e.g gravity waves...) Asphericity information on the particle in order to discriminate some particles from others (soil dust from other aerosol, ice/water phase of the clouds…)

  • The Met Office have operated a network of wind profiling lidars at various sites around the British Isles since the first was installed in 1998, following the installation of the NERC MST radar near Aberystwyth. This datasets collection contains the available 30 minute averaged wind profile data from these sites made available for research by the academic community and included parameters such as measurements of the zonal, meridional and vertical components of winds, signal to noise ratio and spectral width. The data are from boundary layer UHF wind profilers located at Camborne (915 Mhz), Dunkeswell (1290 Mhz) and Wattisham (1290 Mhz) and a Stratosphere-Troposphere (ST) VHF radar at South Uist operating at 64 Mhz. A fourth UHF radar operated at 915 Mhz was operated at the NERC MST Radar site at Capel Dewi, near Aberystwyth, between November 1999 and March 2002; it was then relocated to South Uist until May 2005 ahead of and during the commisioning of the 64 Mhz radar, before being relocated to its present location on the Isle of Man. An additional Degreane wind profiler has since been purchased by the Met Office and is deployed at the Chilbolton Observatory, but data from this instrument are not presently part of this dataset. This dataset contains wind profiler data from Camborne (from 1998), Dunkeswell (from 1999), Wattisham (2001 to present), Aberystwyth (Capel Dewi, 1999 to 2002), South Uist (915MHz, 2003 to 2004), South Uist (64MHz, from 2004), and Isle of Man (2005 to 2008 and since 2010). Data from these wind-profilers, and from the NERC MST Radar, are used operationally by the Met Office for numerical weather prediction. They additionally receive data from up to another 15 wind-profiling systems throughout Europe as part of the CWINDE (COST Wind Initiative for a Network Demonstration in Europe) project. A map showing the locations of the wind profilers is available on the CWINDE website. Data from wind profilers is also routinely transmitted accross the Global Telecommunication System (GTS) according to standards defined by the World Meteorological Organisation (WMO). Those data can be found in the Met Office MetDB dataset also held by the BADC.

  • This dataset contains corrected observations (motion and translational movement) from a WindCube V2 Lidar (Leosphere). The instrument was mounted on the NATO Research Vessel Alliance during Iceland Greenland Seas Project (IGP) campaign in February–March 2018. The Iceland Greenland seas Project (IGP) was an international project involving the UK, US a Norwegian research communities. The UK component was funded by NERC, under the Atmospheric Forcing of the Iceland Sea (AFIS) project (NE/N009754/1).

  • Cloud base and backscatter data from the Met Office's Linton On Ouse Cl31 ceilometer located at Linton On Ouse, North Yorkshire. The Met Office's laser cloud base recorders network (LCBRs), or ceilometers, returns a range of products for use in forecasting and hazard detection. The backscatter profiles can allow detection of aerosol species such as volcanic ash where suitable instrumentation is deployed.

  • Cloud base and backscatter data from the Met Office's Valley Cl31 ceilometer located at Valley, Wales. The Met Office's laser cloud base recorders network (LCBRs), or ceilometers, returns a range of products for use in forecasting and hazard detection. The backscatter profiles can allow detection of aerosol species such as volcanic ash where suitable instrumentation is deployed.

  • Cloud base and backscatter data from the Met Office's Jenoptik CHM15k Nimbus ceilometer located at Aldergrove, Belfast. The Met Office's laser cloud base recorders network (LCBRs), or ceilometers, returns a range of products for use in forecasting and hazard detection. The backscatter profiles can allow detection of aerosol species such as volcanic ash where suitable instrumentation is deployed.

  • Range corrected lidar signal and volume depolarisation ratio data from the Met Office's Raymetrics LR111-D300 lidar located at Nottingham, central England. Data available from June 2018 onwards, though the instrument is only operated sporadically (see below for further details). This instrument is one of a suite of 10 Raman lidars deployed by the Met Office around the UK to complement a wider network of ceilometers within the "LIDARNET" upper air monitoring network. Returns from these instruments form a range of products for use in forecasting and hazard detection. The backscatter profiles can allow detection of aerosol species such as volcanic ash where suitable instrumentation is deployed. The primary aim of the Raman lidar network is the detection and quantification of volcanic ash aerosols during a volcanic event, and the network is only test fired only for a few hours each week. Outside of these times the lidars may be fired if there is a mineral dust outbreak or other such aerosol event of interest. The lidars will not fire if any precipitation is detected. Raman channel data are not presently available from this instrument in the CEDA archives.

  • Cloud base and backscatter data from the Met Office's Leuchars Cl31 ceilometer located at Leuchars, St Andrews. The Met Office's laser cloud base recorders network (LCBRs), or ceilometers, returns a range of products for use in forecasting and hazard detection. The backscatter profiles can allow detection of aerosol species such as volcanic ash where suitable instrumentation is deployed.

  • Cloud base and backscatter data from the Met Office's Jenoptik CHM15k Nimbus ceilometer located at Camborne, Cornwall. The Met Office's laser cloud base recorders network (LCBRs), or ceilometers, returns a range of products for use in forecasting and hazard detection. The backscatter profiles can allow detection of aerosol species such as volcanic ash where suitable instrumentation is deployed.

  • Range corrected lidar signal and volume depolarisation ratio data from the Met Office's Raymetrics LR111-D300 lidar located at Camborne, Cornwall. Data available from June 2018 onwards, though the instrument is only operated sporadically (see below for further details). This instrument is one of a suite of 10 Raman lidars deployed by the Met Office around the UK to complement a wider network of ceilometers within the "LIDARNET" upper air monitoring network. Returns from these instruments form a range of products for use in forecasting and hazard detection. The backscatter profiles can allow detection of aerosol species such as volcanic ash where suitable instrumentation is deployed. The primary aim of the Raman lidar network is the detection and quantification of volcanic ash aerosols during a volcanic event, and the network is only test fired only for a few hours each week. Outside of these times the lidars may be fired if there is a mineral dust outbreak or other such aerosol event of interest. The lidars will not fire if any precipitation is detected. Raman channel data are not presently available from this instrument in the CEDA archives.