elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Impressum | Datenschutz | Kontakt | English
Schriftgröße: [-] Text [+]

Quantification of CO2 Emission Rates from Large Coal-Fired Power Plants Using Airborne Lidar during CoMet

Wolff, Sebastian und Ehret, Gerhard und Kiemle, Christoph und Amediek, Axel und Quatrevalet, Mathieu und Wirth, Martin und Fix, Andreas (2021) Quantification of CO2 Emission Rates from Large Coal-Fired Power Plants Using Airborne Lidar during CoMet. EGU General Assembly 2021, 2021-04-19 - 2021-04-30, online. doi: 10.5194/egusphere-egu21-14303.

[img] PDF
238kB

Offizielle URL: https://www.egu21.eu/

Kurzfassung

A large fraction of global anthropogenic greenhouse gas emissions originates from localized point sources. International climate treaties foresee their independent monitoring. Given the high number of point sources and their global spatial distribution, local monitoring is challenging, whereas a global satellite-based observing system is advantageous. In this perspective, a promising measurement approach is active remote sensing by airborne lidar, such as provided by the integrated-path differential-absorption lidar CHARM-F. Installed onboard the German research aircraft HALO, CHARM-F serves as a demonstrator for future satellite missions, e.g. MERLIN. CHARM-F simultaneously measures weighted vertical column mixing ratios of CO2 and CH4 below the aircraft. In spring 2018, during the CoMet field campaign, measurements were taken at the largest European point sources of anthropogenic CO2 and CH4 emissions, i.e. coal-fired power plants and ventilation shafts of coal mines. The measurement flights aimed to transect isolated exhaust plumes, in order to derive the corresponding emission rates from the resulting enhancement in concentration, along the plume crossing. For the first time, multiple measurements of power plant emissions were made using airborne lidar. On average, we find that our measurements are consistent with reported numbers, but observe high discrepancies between successive plume crossings of up to 50 %. As an explanation for these high discrepancies, we assess the influence of inhomogeneity in the exhaust plume, caused by atmospheric turbulence. This assessment is based on the Weather Research and Forecasting Model (WRF). We find a pronounced diurnal cycle of plume inhomogeneity associated with local turbulence, predominately driven by midday solar irradiance. Our results reveal that periods of high turbulence, specifically during midday and afternoon, should be avoided whenever possible. Since lidar is intrinsically independent of sun light, measurements can be performed under conditions of weak turbulence, such as at night or in the early morning.

elib-URL des Eintrags:https://elib.dlr.de/145672/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:Quantification of CO2 Emission Rates from Large Coal-Fired Power Plants Using Airborne Lidar during CoMet
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Wolff, SebastianDLR, IPAhttps://orcid.org/0000-0001-6745-1947NICHT SPEZIFIZIERT
Ehret, GerhardDLR IPANICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Kiemle, ChristophDLR, IPAhttps://orcid.org/0000-0003-1231-2813NICHT SPEZIFIZIERT
Amediek, AxelDLR, IPAhttps://orcid.org/0000-0002-5076-1559NICHT SPEZIFIZIERT
Quatrevalet, MathieuDLR IPANICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Wirth, MartinDLR, IPAhttps://orcid.org/0000-0001-5951-2252NICHT SPEZIFIZIERT
Fix, AndreasDLR, IPAhttps://orcid.org/0000-0003-2818-9290NICHT SPEZIFIZIERT
Datum:2021
Referierte Publikation:Nein
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
DOI:10.5194/egusphere-egu21-14303
Status:veröffentlicht
Stichwörter:greenhouse gas lidar, CO2, emissions
Veranstaltungstitel:EGU General Assembly 2021
Veranstaltungsort:online
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:19 April 2021
Veranstaltungsende:30 April 2021
Veranstalter :Copernicus Meetings
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erdbeobachtung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):R - Projekt CO2-Emissionsüberwachung, CO2Mon
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Lidar
Hinterlegt von: Fix, Dr.rer.nat. Andreas
Hinterlegt am:16 Nov 2021 08:21
Letzte Änderung:24 Apr 2024 20:44

Nur für Mitarbeiter des Archivs: Kontrollseite des Eintrags

Blättern
Suchen
Hilfe & Kontakt
Informationen
electronic library verwendet EPrints 3.3.12
Gestaltung Webseite und Datenbank: Copyright © Deutsches Zentrum für Luft- und Raumfahrt (DLR). Alle Rechte vorbehalten.