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A Novel Satellite Mission Concept for Upper Air Water Vapour, Aerosol and Cloud Observations Using Integrated Path Differential Absorption LiDAR Limb Sounding

Hoffmann, Alex und Clifford, Debbie und Aulinas, Josep und Carton, James G. und Deconinck, Florian und Esen, Berivan und Hüsing, Jakob und Kern, Katharina und Kox, Stephan und Krejci, David und Krings, Thomas und Lohrey, Steffen und Romano, Patrick und Topham, Ricardo und Weitnauer, Claudia (2012) A Novel Satellite Mission Concept for Upper Air Water Vapour, Aerosol and Cloud Observations Using Integrated Path Differential Absorption LiDAR Limb Sounding. Remote Sensing, 4, Seiten 867-910. DOI: 10.3390/rs4040867. ISSN 2072-4292.

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Offizielle URL: http://www.mdpi.com/2072-4292/4/4/867/

Kurzfassung

We propose a new satellite mission to deliver high quality measurements of upper air water vapour. The concept centres around a LiDAR in limb sounding by occultation geometry, designed to operate as a very long path system for differential absorption measurements. We present a preliminary performance analysis with a system sized to send 75 mJ pulses at 25 Hz at four wavelengths close to 935 nm, to up to 5 microsatellites in a counter-rotating orbit, carrying retroreflectors characterized by a reflected beam divergence of roughly twice the emitted laser beam divergence of 15 �rad. This provides water vapour profiles with a vertical sampling of 110 m; preliminary calculations suggest that the system could detect concentrations of less than 5 ppm. A secondary payload of a fairly conventional medium resolution multispectral radiometer allows wide-swath cloud and aerosol imaging. The total weight and power of the system are estimated at 3 tons and 2,700 W respectively. This novel concept presents significant challenges, including the performance of the lasers in space, the tracking between the main spacecraft and the retroreflectors, the refractive effects of turbulence, and the design of the telescopes to achieve a high signal-to-noise ratio for the high precision measurements. The mission concept was conceived at the Alpbach Summer School 2010.

Dokumentart:Zeitschriftenbeitrag
Titel:A Novel Satellite Mission Concept for Upper Air Water Vapour, Aerosol and Cloud Observations Using Integrated Path Differential Absorption LiDAR Limb Sounding
Autoren:
AutorenInstitution oder E-Mail-Adresse der Autoren
Hoffmann, AlexUniv. of Cambridge, UK
Clifford, DebbieUniv. of Reading, UK
Aulinas, JosepUniv. of Girona, E
Carton, James G.Dublin City Univ., IR
Deconinck, FlorianInst. Supérieur de l’Aéronautique et de l’Espace, Toulouse, F
Esen, BerivanUniv. of Toronto, CND
Hüsing, JakobESTEC, ESA, Noordwijk, NL
Kern, KatharinaUniv. of Graz, A
Kox, StephanStephan.Kox@dlr.de
Krejci, DavidVienna Univ. of Technology, A
Krings, ThomasUniv. of Bremen
Lohrey, SteffenUniv. of Oxford, UK
Romano, PatrickGraz Univ. of Technology, A
Topham, RicardoInt. Space Univ., Illkirch-Graffenstaden, F
Weitnauer, ClaudiaUniv. of Augsburg
Datum:27 März 2012
Erschienen in:Remote Sensing
Referierte Publikation:Ja
In Open Access:Ja
In SCOPUS:Ja
In ISI Web of Science:Ja
Band:4
DOI :10.3390/rs4040867
Seitenbereich:Seiten 867-910
ISSN:2072-4292
Status:veröffentlicht
Stichwörter:UTLS; stratosphere; active limb sounding; laser occultation; spaceborne reflectors;
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:keine Zuordnung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R - keine Zuordnung
DLR - Teilgebiet (Projekt, Vorhaben):R -- keine Zuordnung
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Institut für Physik der Atmosphäre > Fernerkundung der Atmosphäre
Hinterlegt von: Stephan Kox
Hinterlegt am:11 Apr 2012 15:27
Letzte Änderung:12 Dez 2013 21:38

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