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Analysis of Range Measurements From a Pulsed Airborne CO2 Integrated Path Differential Absorption Lidar

Amediek, Axel and Sun, Xiaoliq and Abshire, James B. (2012) Analysis of Range Measurements From a Pulsed Airborne CO2 Integrated Path Differential Absorption Lidar. IEEE Transactions on Geoscience and Remote Sensing, online, pp. 1-7. DOI: 10.1109/TGRS.2012.2216884.

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Official URL: http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6332502

Abstract

Determining the CO2 column abundance from an integrated path differential absorption (IPDA) lidar requires accurate knowledge of the range to the scattering surface, i.e., the column height. We have adapted and tested a ranging algorithm for the airborne IPDA CO2 lidar designed at the NASA Goddard Space Flight Center, and have evaluated its accuracy and precision. We applied a quasi-maximum-likelihood method, using cross correlation, to estimate the range from the lidar’s 1-μs-wide echo pulses. The objective was to show that the use of these temporally long laser pulses allows the determination of the optical path length with required precision. We analyzed airborne measurements made in August 2009 over the Chesapeake Bay near the Eastern Shore of Virginia. The results indicate a ranging recision of better than 3 m, which is sufficient for airborne and space-based retrievals of CO2 column concentration.

Document Type:Article
Title:Analysis of Range Measurements From a Pulsed Airborne CO2 Integrated Path Differential Absorption Lidar
Authors:
AuthorsInstitution or Email of Authors
Amediek, Axelaxel.amediek@dlr.de
Sun, XiaoliqUNSPECIFIED
Abshire, James B.NASA Goddard
Date:2012
Journal or Publication Title:IEEE Transactions on Geoscience and Remote Sensing
Refereed publication:Yes
In Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:online
DOI:10.1109/TGRS.2012.2216884
Page Range:pp. 1-7
Status:Published
Keywords:Carbon dioxide, Kohlendioxid, CO2, IPDA, lidar, ranging
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben LIDAR-Forschung und -Entwicklung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Dr.rer.nat. Axel Amediek
Deposited On:03 Dec 2012 12:48
Last Modified:12 Dec 2013 21:53

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