ENVIRONMENT - ste fs Sth ooh ate an Ae Hiehe aa nts eeee bt eae Aaya ne ee lPigi ll °*> Instrumentation arrayfor a series of 5-m? test spills of liquefied natural gas (LNG) at the Naval Weapons Center, China Lake, California. The array consisted of eight primary stations (points I through 8) distributed downwind from the spill point, each one equipped with a variety of grab samplers, gas sensors, and thermocouples. The primary stations were supplemented at points 9, 10, and I] by anemometers and at point 12 by a Jet Propulsion Laboratory gas sensor. The radial dis- tance from the spill point in the pond to stations 7 and 8 was 9] m. Instruments at stations I, 2, 4, 5, 7,.and 8 were positioned 0.9 m abovethe pond surface. Instruments at stations 3 and 6 were 0.3, 0.9, and 2.4 m abovethe surface. The center line of the array coincidedwith the prevailing wind direction. The LIDAR system, a laser-based remote gas sen- sor, detected Raman scattering from methane within a series of 9-m-long range gates. (Elevation contours are in feet above sea level.) 29 Ee J 008 oO uO