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Quantifying localized carbon dioxide emissions from space: the CO2Image mission

Feist, Dietrich and Roiger, Anke-Elisabeth and Marshall, Julia and Gottschaldt, Klaus-Dirk and Reum, Friedemann and Lichtenberg, Günter and Baumgartner, Andreas and Hochstaffl, Philipp and Köhler, Claas Henning and Schreier, Franz and Krutz, David and Paproth, Carsten and Pohl, Andreas and Sebastian, Ilse and Walter, Ingo and Butz, André (2023) Quantifying localized carbon dioxide emissions from space: the CO2Image mission. EGU General Assembly 2023, 2023-04-23 - 2023-04-28, Wien, Österreich. doi: 10.5194/egusphere-egu23-16064.

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Official URL: https://meetingorganizer.copernicus.org/EGU23/EGU23-16064.html


Space-based observations of carbon dioxide (CO2) are the backbone of the global and national-scale carbon monitoring systems that are currently being developed to support and verify greenhouse gas emission reduction measures. Current and planned public satellite missions, such as GOSAT 1+2, OCO 1-3 and the European Union's Anthropogenic Carbon Dioxide Monitoring mission CO2M, aim at constraining national and regional-scale emissions down to scales of urban agglomerations and large point sources with emissions in excess of ~10 MtCO2/year. We report on the DLR demonstrator mission CO2Image, which is planned for launch in 2026. The mission will complement the suite of planned CO2 sensors by zooming in on facility-scale emissions, detecting and quantifying emissions from point sources as small as 1 MtCO2/year. A fleet of CO2Image sensors would be able to monitor roughly 90% of the CO2 emissions from coal-fired power plants worldwide. The key feature of the mission is a target region approach, measuring approximately 75 tiles of size ~50 x 50 km2 per day at a resolution of 50 x 50 m2. Thus, CO2Image will be able to resolve plumes from individual localized sources, essentially providing super-resolution nests for survey missions such as CO2M. In addition, the choice of the spectral window will allow the detection of point sources of methane as small as 100 kg CH4/hr will also be possible. We present the instrument concept, a spaceborne push-broom imaging grating spectrometer developed and built by DLR. It will measure spectra of reflected solar radiation in the short wave infrared spectral band around 2000 nm. It relies on a comparatively compact design with a single spectral window and a spectral resolution of approximately ~1 nm. This spectral resolution has been optimized for greenhouse gas retrieval and should provide improved precision and accuracy compared to hyperspectral sensors with comparable spatial resolution. We will further discuss the overall mission concept in terms of the sampling strategy, outlining how target scenes will be selected. As a publicly-funded mission, CO2Image will provide public, transparent information about anthropogenic greenhouse gas emissions from space.

Item URL in elib:https://elib.dlr.de/198951/
Document Type:Conference or Workshop Item (Speech)
Title:Quantifying localized carbon dioxide emissions from space: the CO2Image mission
AuthorsInstitution or Email of AuthorsAuthor's ORCID iDORCID Put Code
Feist, DietrichDLR, IPAhttps://orcid.org/0000-0002-5890-6687UNSPECIFIED
Marshall, JuliaDLR, IPAhttps://orcid.org/0000-0003-2648-128XUNSPECIFIED
Gottschaldt, Klaus-DirkDLR, IPAhttps://orcid.org/0000-0002-2046-6137UNSPECIFIED
Reum, FriedemannDLR, IPAhttps://orcid.org/0000-0003-2488-6582UNSPECIFIED
Lichtenberg, GünterUNSPECIFIEDhttps://orcid.org/0000-0002-3335-2008UNSPECIFIED
Baumgartner, AndreasUNSPECIFIEDhttps://orcid.org/0000-0002-8495-5407146582975
Hochstaffl, PhilippUNSPECIFIEDhttps://orcid.org/0000-0001-9537-3050UNSPECIFIED
Köhler, Claas HenningUNSPECIFIEDhttps://orcid.org/0000-0003-0127-935XUNSPECIFIED
Schreier, FranzUNSPECIFIEDhttps://orcid.org/0000-0001-7196-6599UNSPECIFIED
Pohl, AndreasUNSPECIFIEDhttps://orcid.org/0009-0005-5091-6476UNSPECIFIED
Butz, AndréUniv. Heidelberghttps://orcid.org/0000-0003-0593-1608UNSPECIFIED
Date:26 April 2023
Refereed publication:No
Open Access:No
Gold Open Access:No
In ISI Web of Science:No
Keywords:CO2, satellite, observations, point sources, CO2Image
Event Title:EGU General Assembly 2023
Event Location:Wien, Österreich
Event Type:international Conference
Event Start Date:23 April 2023
Event End Date:28 April 2023
Organizer:European Geosciences Union (EGU)
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 - Project CO2Image [EO]
Location: Berlin-Adlershof , Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Atmospheric Trace Species
Institute of Optical Sensor Systems
Remote Sensing Technology Institute > Experimental Methods
Remote Sensing Technology Institute > Atmospheric Processors
Deposited By: Feist, Dr. Dietrich
Deposited On:14 Nov 2023 09:38
Last Modified:24 Apr 2024 20:59

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