Opublikowano pracę n.t nocnej cyrkulacji górnych warstw atmosfery Wenus.
Na podstawie danych z sondy udało się m. in. po raz pierwszy zmierzyć rozkład prędkości wiatru w górnych warstwach atmosfery zarówno w dzień, jak i w nocy.New observations from the Venus Climate Orbiter, Akatsuki, published in NatureJuly 22, 2021 (JST) The University of Tokyo, Rikkyo University, Japan Aerospace Exploration Agency (JAXA)
(...) A research group led by Kiichi Fukuya, a master’s student at the University of Tokyo’s Graduate School of Science, and Professor Takeshi Imamura of the University of Tokyo’s Graduate School of Frontier Science, along with researchers from the University of Tokyo, Rikkyo University, Japan Aerospace Exploration Agency (JAXA) and other institutions, succeeded in visualizing the motion of the clouds covering Venus over both the day and night by analyzing infrared images captured by JAXA’s Venus Climate Orbiter, Akatsuki.(...)
Distribution of the night-side wind speeds on Venus. This is shown for the first time in this research. Arrow length is proportional to the wind speed, and a length of 10 degrees in latitude corresponds to 5 m/s (adapted from Fukuya et al. 2021).
The newly revealed image of the circulation near the cloud layer of Venus. Poleward flow (light blue, on right) dominates on the planet day side, and the equatorward flow (yellow, left) dominating on the night side, overlapping with the super-rotation (red) across the entire planet. The poleward flow on the nightside—discovered through infrared observations in this work—cancels out the daytime flow towards the equator. The difference between the day and night flows is due to the thermal tides. The image of the day side of Venus was captured with the ultraviolet camera UVI onboard the Venus Climate Orbiter, Akatsuki, and the image of the nightside was taken by the infrared camera, LIR (Venus images provided by JAXA).https://global.jaxa.jp/press/2021/07/20210722-1_e.html
Wątek: Akatsuki - Venus Climate Orbiter (VCO) (Przeczytany 65302 razy)