JpGU-AGU Joint Meeting 2017

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[EJ] Oral

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

[P-PS06] [EJ] Results of Venus science with Akatsuki in orbit for 1.5 year

Sat. May 20, 2017 1:45 PM - 3:15 PM Convention Hall B (International Conference Hall 2F)

convener:Takehiko Satoh(Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency), Takeshi Horinouchi(Faculty of Environmental Earth Science, Hokkaido University), Masaru Yamamoto(Research Institute for Applied Mechanics, Kyushu University), Kevin McGouldrick(University of Colorado Boulder), Chairperson:Takeshi Horinouchi(Faculty of Environmental Earth Science, Hokkaido University)

2:45 PM - 3:00 PM

[PPS06-14] An attempt to detect lava eruptions on Venus using 1 um camera onboard Akatsuki

*Sawai Kenta1, George HASHIMOTO1, Naomoto Iwagami (1.Department of Earth Sciences, Okayama University)

Keywords:Venus, Akatsuki, volcanism

On Venus, there are lots of landforms which are related to volcanic activity. Although it has been supposed that Venus is still volcanically active (e.g., Shalygin et al., 2015), there still remains ambiguity in the current activity. In this presentation, we introduce a method to detect lava eruptions using IR1 camera onboard Akatsuki. Since IR1 camera observes thermal emission from the Venusian surface at 1.01 um wavelength, a hot lava should be observed against background of relatively cool surface. Although surface thermal emission is scattered and attenuated by clouds, bright spots caused by horizontal inhomogeneity of clouds would be excluded. We will show an example analysis of hot surface detection using IR1 data.