Japan Geoscience Union Meeting 2018

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[EE] Oral

P (Space and Planetary Sciences) » P-PS Planetary Sciences

[P-PS04] Results from Akatsuki and advances in Venus science

Tue. May 22, 2018 10:45 AM - 12:15 PM A01 (Tokyo Bay Makuhari Hall)

convener:Takehiko Satoh(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Takeshi Horinouchi(Faculty of Environmental Earth Science, Hokkaido University), Masaru Yamamoto(九州大学応用力学研究所, 共同), Kevin McGouldrick(University of Colorado Boulder), Chairperson:Horinouchi Takeshi, Satoh Takehiko

11:40 AM - 11:55 AM

[PPS04-09] Detailed analysis of long-term cloud evolution using Akatsuki / IR2 and Venus Express / VIRTIS-M-IR

*Kevin McGouldrick1 (1.University of Colorado Boulder)

Keywords:Venus, Atmosphere, Meteorology, Composition, Dynamics, Akatsuki

A roughly 150 day periodicity in cloud opacity, determined from zonally-averaged radiance at 1.74 microns measured by VIRTIS-M-IR during the Venus Express mission has been reported previously by McGouldrick and Tsang, 2017. Here, we investigate the finer characteristics of this phenomenon, in light of observations of Venus made by the Akatsuki spacecraft. Evidence in support of and against previous and newly proposed explanations for the phenomenon will be discussed.