C02LIDAR

This airborne field test campaign was designed to obtain a coordinated set of remote CO2 Laser Absorption Spectrometer (LAS) measurements using the NASA Langley/ITT 1.57-micron Continuous-Wave (CW) LAS operating from the NASA Langley UC-12 aircraft; the NASA Goddard 1.57-micron pulsed LAS operating from the NASA Glenn Lear-25 aircraft; and the NASA Jet Propulsion Laboratory 2.0-micron CW-coherent LAS operating from a contracted Twin Otter aircraft. These remote LAS CO2 column measurements were compared with “ground truth” values derived from contemporaneous in situ CO2 and meteorological measurements made from the DOE Cessna aircraft; the NASA Langley CO2 and meteorological instruments on the UC-12; the DOE CO2 flasks on the Lear; the Piccaro CO2 instrument on the Twin Otter; the DOE CO2 tower measurements; and the DOE radiosonde measurements. Coordinated LAS flights over/near the DOE ARM site were conducted along a 30-nmi leg at various altitudes and under various atmospheric conditions to evaluate the performance of the different LAS instruments for remote CO2 column measurements. Comparisons were made between the CO2 optical depths from the LAS instruments and those computed from the in situ measurements. The results from this campaign provided important guidance for future NASA developments and flight experiments.

Timeline

Campaign Data Sets