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Methane and CO2 lidar measurements from air and space

Fix, Andreas and Amediek, Axel and Ehret, Gerhard and Kiemle, Christoph and Quatrevalet, Mathieu and Wirth, Martin and Wolff, Sebastian (2021) Methane and CO2 lidar measurements from air and space. 6th annual conference on Climate Change and Global Warming (CCGW-6), 2021-05-04 - 2021-05-05, online.

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Official URL: https://iasbs.ac.ir/~crcc/crcc6/


Active remote sensing techniques using lidar show much promise to provide accurate measurements of the major anthropogenic greenhouse gases (GHG) methane and CO2 columns from air- and spaceborne platforms. Such measurements on global and regional scales are urgently required as input for models helping to provide additional information to constrain bottom-up inventories. Installed onboard the German research aircraft HALO, the integrated-path differential-absorption (IPDA) lidar CHARM-F measures weighted vertical columns of CH4 and CO2 below the aircraft and along its flight track aiming at high accuracy and precision. Results will be shown from the deployment during the CoMet field campaign that was carried out in spring 2018 with its main focus on one of the major European hot spots in methane emissions: the Upper Silesian Coal Basin (USCB) in Poland. First analyses reveal a measurement precision of below 0.5% for 20-km averages and also low bias, which was assessed by comparison with in-situ instruments. The measurements flights were designed to capture individual methane plumes from coal mine venting, but also measure regional gradients from this complex source region. Many other different instruments, both airborne and ground-based, complemented the lidar measurements to provide a comprehensive dataset for model analyses. CHARM-F also acts as the airborne demonstrator for MERLIN, the “Methane Remote Lidar Mission”, conducted by the German and French space agencies DLR and CNES with launch foreseen in ~ 2025. Benefit expected from this mission as well as technological challenges for future GHG space lidars will be discussed.

Item URL in elib:https://elib.dlr.de/145673/
Document Type:Conference or Workshop Item (Speech)
Title:Methane and CO2 lidar measurements from air and space
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Fix, AndreasDLR, IPAhttps://orcid.org/0000-0003-2818-9290UNSPECIFIED
Amediek, AxelDLR, IPAhttps://orcid.org/0000-0002-5076-1559UNSPECIFIED
Kiemle, ChristophDLR, IPAhttps://orcid.org/0000-0003-1231-2813UNSPECIFIED
Wirth, MartinDLR, IPAhttps://orcid.org/0000-0001-5951-2252UNSPECIFIED
Wolff, SebastianDLR, IPAhttps://orcid.org/0000-0001-6745-1947UNSPECIFIED
Date:5 May 2021
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:Greenhouse gas lidar, aircraft satellites
Event Title:6th annual conference on Climate Change and Global Warming (CCGW-6)
Event Location:online
Event Type:international Conference
Event Start Date:4 May 2021
Event End Date:5 May 2021
Organizer:Institute for Advanced Studies in Basic Sciences (IASBS)
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Earth Observation
DLR - Research theme (Project):R - LIDAR research and development
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics
Deposited By: Fix, Dr.rer.nat. Andreas
Deposited On:16 Nov 2021 08:23
Last Modified:24 Apr 2024 20:44

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