The ultraviolet imager (UVI) has been developed for the Akatsuki spacecraft (Venus Climate Orbiter mission). The UVI takes ultraviolet (UV) images of the solar radiation reflected by the Venusian clouds with narrow bandpass filters centered at the...
Venus is covered with thick clouds. Ultraviolet (UV) images at 0.3–0.4 microns show detailed cloud features at the cloud-top level at about 70 km, which are created by an unknown UV-absorbing substance. Images acquired in this wavelength range hav...
Geophysical Research Letters 44(24) 12,098-12,105 2017年12月 [査読有り]
The existence of large stationary gravity waves was discovered during Akatsuki's first observation sequence in 2015. In this study, the further detection of large stationary gravity waves in brightness temperature images over a 1.5 year period is ...
Imamura, T.   Ando, H.   Tellmann, S.   P{\"a}tzold, M.   H{\"a}usler, B.   Yamazaki, A.   Sato, T.M.   Noguchi, K.   Futaana, Y.   Oschlisniok, J.   Limaye, S.   Choudhary, R.K.   Murata, Y.   Takeuchi, H.   Hirose, C.   Ichikawa, T.   Toda, T.   Tomiki, A.   Abe, T.   Yamamoto, Z.-I.   Noda, H.   Iwata, T.   Murakami, S.-Y.   Satoh, T.   Fukuhara, T.   Ogohara, K.   Sugiyama, K.-I.   Kashimura, H.   Ohtsuki, S.   Takagi, S.   Yamamoto, Y.   Hirata, N.   Hashimoto, G.L.   Yamada, M.   Suzuki, M.   Ishii, N.   Hayashiyama, T.   Lee, Y.J.   Nakamura, M.