G - Physics – 01 – N
Patent
G - Physics
01
N
G01N 21/85 (2006.01) G01N 21/17 (2006.01) G01S 17/88 (2006.01)
Patent
CA 2725351
A system for obtaining emission flux of a gas plume, emanating from a source, includes an airborne differential absorption lidar (DIAL) system for determining multiple concentration path length (CPL) values along a flight path; and an airborne wind measuring system (WMS) for determining a wind vector at the aircraft altitude. Also included is a processor for receiving the multiple CPL values determined by the DIAL system and the wind vector determined by the WMS. The processor uses the CPL values to compute either (a) an area-integrated concentration (AIC) value or (b) an average concentration value over a cross-plume extent, defined along the length dimension of the flight path. The processor also scales the wind vector to the near ground altitude level of the gas plume to obtain a scaled wind vector. The emission flux is obtained by multiplying either the AIC value or the average concentration value with a component of the scaled wind vector. The component of the scaled wind vector is defined by a vector perpendicular to the length dimension of the flight path.
Brake Daniel Everett
Fisher Caren M.
Lippert Joseph Lawrence
Stearns Steven Vincent
Blake Cassels & Graydon Llp
Itt Manufacturing Enterprises Inc.
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