Space-based active optical remote sensing of carbon dioxide column using high-energy two-micron pulsed ipda lidar

¹ NASA Langley Research Center, Hampton, VA 23681, USA,
² Analytical Services and Materials, Inc., Hampton, VA 23666, USA,
³ Pennsylvania State University, University Park, PA 16802, USA,
⁴ NASA Goddard Space Flight Center, Greenbelt, MD 20771, USA,
⁵ Jet Propulsion Laboratory, Pasadena, CA 91109, USA

^* Email: Upendra.n.singh@nasa.gov

Published online: 13 April 2018

Abstract

Modeling of a space-based high-energy 2-μm triple-pulse Integrated Path Differential Absorption (IPDA) lidar was conducted to demonstrate carbon dioxide (CO₂) measurement capability and to evaluate random and systematic errors. A high pulse energy laser and an advanced MCT e-APD detector were incorporated in this model. Projected performance shows 0.5 ppm precision and 0.3 ppm bias in low-tropospheric column CO₂ mixing ratio measurements from space for 10 second signal averaging over Railroad Valley (RRV) reference surface.