Multi-Observatory Observations of Night-side of Venus at 2.3 mum: Atmospheric Circulation from Tracking of Cloud Features
2005 (English)In: Bull. Astron. Soc. IndiaArticle in journal (Refereed) Published
Observations of Venus were made during 3 May-11 May 2004 (117.4 -125.7 Phase angle) and 3 July-10 July, 2004 (132.5 – 125.1 Phase angle) from the 1.2-metre Mt. Abu Telescope at Gurushikhar, Himalayan Chandra Telescope at Mt. Saraswati, Hanle and the Nordic Optical Telescope at La Palma, Canary Islands and the NASA/Infra Red Telescope Facility (IRTF) at Mauna Kea, Hawaii in J and K bands. While the sun-lit crescent portion was saturated in the detector, the night side shows discrete cloud features. These features are seen to evolve over time and are markers of the atmospheric flow at or below ~ 53 km altitude above the surface. By combining multi-site observations, we are able to make reliable measurements of the atmospheric flow.
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IdentifiersURN: urn:nbn:se:uu:diva-71437OAI: oai:DiVA.org:uu-71437DiVA: diva2:99348