National Physical Laboratory

Remote Sensing Surveys

Remote sensing surveys

NPL's Differential Absorption Lidar provides rapid, accurate measurements of airborne emissions up to 3 km away from industrial plant. The DIAL technology can be used for a number of atmospheric campaigns including:

  • Remote measurements into inaccessible, hazardous or elevated areas
  • Wide area surveys of diffuse sources e.g. methane from landfill sites
  • Measurement of total industrial site emissions
  • Boundary fence monitoring
  • Identification and quantification of leaks
  • Plume tracking and source identification from complex industrial plant
  • Environmental impact assessment
  • Validation of emission estimates or modelling techniques
DIAL van

NPL's DIAL can collect real-time data for any gaseous species with characteristic absorptions in UV-VIS-NIR spectral regions including: SO2, NO2, NO, ozone, benzene, toluene, xylene and higher aromatics, alkanes, alkenes, petroleum and diesel vapours, Hg, HCl, N2O, HF and H2S. Our software enables total site emissions to be visualised via a series of multi-dimensional plots, in a way that highlights key emission points and their concentrations.

Contact

Customer Service tel: +44 20 8943 8637
E-mail: environmental_enquiries@npl.co.uk

Last Updated: 23 Aug 2012
Created: 17 Apr 2007