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Averaging bias correction for the future space-borne methane IPDA lidar mission MERLIN

Tellier, Yoann and Pierangelo, Clémence and Wirth, Martin and Gibert, Fabien and Marnas, Fabien (2018) Averaging bias correction for the future space-borne methane IPDA lidar mission MERLIN. Atmospheric Measurement Techniques (AMT), 11 (10), pp. 5865-5884. Copernicus Publications. DOI: 10.5194/amt-11-5865-2018 ISSN 1867-1381

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Official URL: http://dx.doi.org/10.5194/amt-11-5865-2018

Abstract

The CNES (French Space Agency) and DLR (German Space Agency) project MERLIN is a future integrated path differential absorption (IPDA) lidar satellite mission that aims at measuring methane dry-air mixing ratio columns (XCH4) in order to improve surface flux estimates of this key greenhouse gas. To reach a 1 % relative random error on XCH4 measurements, MERLIN signal processing performs an averaging of data over 50 km along the satellite trajectory. This article discusses how to process this horizontal averaging in order to avoid the bias caused by the non-linearity of the measurement equation and measurements affected by random noise and horizontal geophysical variability.

Item URL in elib:https://elib.dlr.de/122476/
Document Type:Article
Title:Averaging bias correction for the future space-borne methane IPDA lidar mission MERLIN
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Tellier, YoannLMD, IPSL, Palaiseau, FrankreichUNSPECIFIED
Pierangelo, ClémenceCNES, Toulouse, FrankreichUNSPECIFIED
Wirth, MartinDLR, IPAhttps://orcid.org/0000-0001-5951-2252
Gibert, FabienLMD, IPSL, Palaiseau, FrankreichUNSPECIFIED
Marnas, FabienCapgemini Technology Services, Toulouse, FrankreichUNSPECIFIED
Date:24 October 2018
Journal or Publication Title:Atmospheric Measurement Techniques (AMT)
Refereed publication:Yes
Open Access:Yes
Gold Open Access:Yes
In SCOPUS:Yes
In ISI Web of Science:Yes
Volume:11
DOI :10.5194/amt-11-5865-2018
Page Range:pp. 5865-5884
Publisher:Copernicus Publications
ISSN:1867-1381
Status:Published
Keywords:Methan, MERLIN, lidar processing
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: Wirth, Dr.rer.nat. Martin
Deposited On:24 Oct 2018 14:41
Last Modified:24 Oct 2018 14:42

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