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CHARM-F: A New Airborne Lidar for the Measurement of Methane and Carbon Dioxide – a Demonstrator for MERLIN

Amediek, Axel und Büdenbender, Christian und Quatrevalet, Mathieu (2016) CHARM-F: A New Airborne Lidar for the Measurement of Methane and Carbon Dioxide – a Demonstrator for MERLIN. ODAS 2016 16th ONERA-DLR Aerospace Symposium, 2016-06-21 - 2016-06-23, Oberpfaffenhofen Deutschland.

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Kurzfassung

CHARM-F is a new four-wavelengths lidar for simultaneous soundings of atmospheric CO2 and CH4. It is designed for the use onboard the German research aircraft HALO. Due to the high technological conformity, it also serves as a demonstrator for MERLIN, the French-German satellite mission carrying a methane lidar. MERLIN’s Preliminary Design Review was successfully passed recently. The launch is planned for 2020. Due to HALO’s maximum flight altitude of 15 km and special features of the airborne lidar, such as a relatively large laser ground spot, the resulting data are similar to those obtained by a spaceborne system. Both, the CHARM-F and the MERLIN lidars are designed in the IPDA (integrated path differential absorption) configuration using short double pulses, which gives column averaged gas mixing ratios between the system and ground. A first CHARM-F measurement campaign on HALO was performed in spring 2015. The focus of the flights was on the completion of the airworthiness certification, technical tests and the collection of first data. The campaign was very successful and a valuable dataset was obtained. First results will be presented. One main application of the data is the support of the retrieval algorithm development for MERLIN. Further goals are to study general measurement sensitivities and system design details. Since the IPDA lidar methodology is still a new approach, there is need to improve the knowledge about details in the system design and in performance questions. The assessment of the instrument performance is supported by another instrument, which was onboard during the flight campaign: a cavity ring down spectrometer, providing in-situ data of carbon dioxide, methane and water vapor with high accuracy and precision. This configuration is ideal for validating the lidar data. For the near future, more detailed characterizations of CHARM-F are planned, the continuation of the support of MERLIN, as well as the preparation of the scientific aircraft campaign CoMet (2017).

elib-URL des Eintrags:https://elib.dlr.de/104983/
Dokumentart:Konferenzbeitrag (Vortrag)
Titel:CHARM-F: A New Airborne Lidar for the Measurement of Methane and Carbon Dioxide – a Demonstrator for MERLIN
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Amediek, AxelDLR, IPAhttps://orcid.org/0000-0002-5076-1559NICHT SPEZIFIZIERT
Büdenbender, ChristianDLR, IPAhttps://orcid.org/0000-0001-8778-3172NICHT SPEZIFIZIERT
Quatrevalet, MathieuDLR, IPANICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:Juni 2016
Referierte Publikation:Ja
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Status:veröffentlicht
Stichwörter:Lidar, Carbon Dioxide, Methane, IPDA, HALO
Veranstaltungstitel:ODAS 2016 16th ONERA-DLR Aerospace Symposium
Veranstaltungsort:Oberpfaffenhofen Deutschland
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:21 Juni 2016
Veranstaltungsende:23 Juni 2016
Veranstalter :ONERA, DLR
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 - LIDAR-Forschung und - Entwicklung
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Lidar
Hinterlegt von: Amediek, Dr.rer.nat. Axel
Hinterlegt am:04 Jul 2016 09:50
Letzte Änderung:24 Apr 2024 20:10

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