AKATSUKI-IR2 reveals unexpected opacity disruption affecting Venus's lower clouds every 9 days
Document typeConference report
Rights accessOpen Access
The images of AKATSUKI acquired with the camera IR2 at 1.74-2.3 µm report the discovery of an equatorial disruption or “front” in the opacity of the lower clouds of Venus at 50 km between 30ºN¿30ºS. This feature appears on the night every 9 terrestrial days during more than 8 months, and introduces a dramatic and abrupt increase of the cloud opacity and reducing the thermal radiance in a factor of about 1:2 from its brightest to the darkest side.
CitationPeralta, J., Satoh, T., Horinouchi, T., Ogohara, K., Kouyama, T., Murakami, S., Imamura, T., McGouldrick, K., Sato, T. M., Limaye, S., Garcia-Melendo, E., Sanchez-Lavega, A., Hueso, R. AKATSUKI-IR2 reveals unexpected opacity disruption affecting Venus's lower clouds every 9 days. A: European Planetary Science Congress. "EPSC Abstracts". Riga: 2017, p. 1-2.