Abshire, James (Jim): NASA GSFC & University of Maryland (Project Lead)
Lin, Bing: NASA Langley Research Center (Project Lead)
DiGangi, Joshua (Josh): NASA Langley Research Center (Co-Investigator)
Mao, Jianping: NASA GSFC/University of Maryland (Co-Investigator)
Obland, Michael (Mike): NASA Langley Research Center (Co-Investigator)
Riris, Haris: NASA GSFC (Co-Investigator)
Spiers, Gary: JPL (Co-Investigator)
Project Funding:
2017 - 2017
NRA: 2017 NASA: Directed Funding
Funded by NASA, Other US Funding: NASA
Abstract:
The CO2 Sounder lidar team participated in the 2017 ASCENDS/ABoVE airborne campaign, which was flown on the NASA DC-8 in July and early August [1]. The flights were designed to assess the accuracy of airborne lidar measurements of XCO2, and to extend lidar measurements to the ABoVE study area in the Arctic. Eight flights were conducted with XCO2 measurements from the lidar along with in-situ CO2 measurements made at the aircraft with the AVOCET and Picarro instruments. Forty-seven spiral-down maneuvers were conducted in locations over California, the Northwest Territories Canada, the Arctic Ocean and Alaska, along with the transit flights from California to Alaska and return. Each spiral maneuver allowed comparing the XCO2 retrievals from the lidar against those computed from CO2 measured at the aircraft.
This campaign allowed a new opportunity to assess airborne lidar measurements of XCO2 made in a diverse set of conditions, including those in the Arctic. The CO2 Sounder lidar results show better than 1-ppm agreement between most lidar and in situ measurements in the spirals, both north-south and east-west gradients in XCO2, and local features in XCO2, including one caused by wildfires. The measurements are available at: https://wwwair.larc.nasa.gov/missions/ascends/index.html.
[1] J. B. Abshire et al., "Pulsed multiwavelength lidar measurements of CO2 column concentrations in the 2017 ASCENDS airborne campaign," 2018 Fall AGU Annual Meeting, Washington DC, Dec. 10-14, 2018, Paper 31P-3156.
Publications:
Abshire, J. B., Ramanathan, A. K., Riris, H., Allan, G. R., Sun, X., Hasselbrack, W. E., Mao, J., Wu, S., Chen, J., Numata, K., Kawa, S. R., Yang, M. Y. M., DiGangi, J. 2018. Airborne measurements of CO<sub>2</sub> column concentrations made with a pulsed IPDA lidar using a multiple-wavelength-locked laser and HgCdTe APD detector. Atmospheric Measurement Techniques. 11(4), 2001-2025. DOI: 10.5194/amt-11-2001-2018
Kawa, R., Allan, G. R., Abshire, J. B., Riris, H., Mao, J., Hasselbrack, W. E., Numata, K., Chen, J., Rodriguez, M. R., Stephen, M. A. 2018. Lidar measurements of CO2 column concentrations in the Arctic region of North America from the ASCENDS 2017 airborne campaign. Lidar Remote Sensing for Environmental Monitoring XVI. DOI: 10.1117/12.2325908
Mao, J., Abshire, J. B., Kawa, S. R., Riris, H., Sun, X., Andela, N., Kolbeck, P. T. 2021. Measuring Atmospheric CO
2
Enhancements From the 2017 British Columbia Wildfires Using a Lidar. Geophysical Research Letters. 48(16). DOI: 10.1029/2021GL093805
Mao, J., Abshire, J. B., Kawa, S. R., Riris, H., Sun, X., Nicely, J. M., Kolbeck, P. T. 2021. The NASA Goddard CO2 Sounder Lidar: 2017 Airborne Campaign as a Demonstration toward a Future Space Mission. 2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS. DOI: 10.1109/IGARSS47720.2021.9554611
Mao, J., Abshire, J. B., Kawa, S. R., Sun, X., Riris, H. 2024. Airborne lidar measurements of atmospheric CO2 column concentrations to cloud tops made during the 2017 ASCENDS/ABoVE campaign. Atmospheric Measurement Techniques. 17(3), 1061-1074. DOI: 10.5194/amt-17-1061-2024
Sun, X., Abshire, J. B., Ramanathan, A., Kawa, S. R., Mao, J. 2021. Retrieval algorithm for the column CO<sub>2</sub> mixing ratio from pulsed multi-wavelength lidar measurements. Atmospheric Measurement Techniques. 14(5), 3909-3922. DOI: 10.5194/amt-14-3909-2021
Sun, X., Kolbeck, P. T., Abshire, J. B., Kawa, S. R., Mao, J. Attenuated atmospheric backscatter profiles measured by the CO<sub>2</sub> Sounder lidar in the 2017 ASCENDS/ABoVE airborne campaign DOI: 10.5194/essd-2022-59
More details may be found in the following project profile(s):
