OPD: Optical environmental sensing
Chair: P Hodgson, Corus Group (UK)

10:15	INVITED: Lidar remote sensing of the atmosphere G Vaughan University of Manchester (UK)
10:45	Lidar monitoring of Aircraft Emissions for Environmental Air Quality S Christie, M Bennett, A Graham^1 University of Manchester (UK) ^1Manchester Metropolitan University (UK)
11:00	Autonomous Doppler Lidar System for Atmospheric Boundary Layer Monitoring K Bozier, F Davies, C Collier University of Salford (UK)
11:15	An airborne intra-pulse quantum cascade laser spectrometer for trace molecule detection G Duxbury, N Langford, S Wright University of Strathclyde (UK)
11:30	Bio-aerosol detection using intrinsic fluorescence and elastic light scattering analysis W R Stanley, P H Kaye, V E Foot^1, K L Baxter^1, S J Barrington^1 University of Hertfordshire (UK) ^1 Defence Science and Technology Laboratory (UK)
11:45	Silica based air-corephotonic crystal fibres for mid-IR gas sensing applications J Shephard, N Gayraud, W MacPherson, R Maier, J Jones, D Hand, J Stone^1, A George^1, J Knight^1, M Mohebbi^2 Heriot-Watt University (UK) ^1 University of Bath (UK) ^2K. N. Toosi University of Technology (Iran)
12:00	An Improved Algorithm for Locating a Gas Source Using Inverse Methods L Thomson, B Hirst^1, G Gibson, S Gillespie^2, K Skeldon, M Padgett University of Glasgow (UK) ^1 Shell Glabal Solutions International BV (The Netherlands) ^2Shell Global Solutions (UK)