Japan Geoscience Union Meeting 2025

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[J] Poster

M (Multidisciplinary and Interdisciplinary) » M-SD Space Development & Earth Observation from Space

[M-SD35] Future Missions of Satellite Earth Observation

Fri. May 30, 2025 5:15 PM - 7:15 PM Poster Hall (Exhibition Hall 7&8, Makuhari Messe)

convener:Nobuhiro Takahashi(Institute for Space-Earth Environmental Research, Nagoya University), Yukari Takayabu(Atmosphere and Ocean Research Institute, the University of Tokyo), SHINICHI SOBUE(Japan Aerospace Exploration Agency), Keiichi Ohara(Japan Aerospace Exploration Agency, Nagoya University)

5:15 PM - 7:15 PM

[MSD35-P04] Small Precipitation Radar Constellation: Application to precipitation observation using small SAR satellites

*Kaya Kanemaru1, Hidekazu Masuda2, Yuuki Morimoto2, Moeka Yamaji2, Nobuhiro Takahashi3 (1.National Institute of Information and Communications Technology , 2.Japan Aerospace Exploration Agency, 3.Nagoya University)

Keywords:Small satellite, Precipitation, GSMaP

We propose an idea of a satellite mission to contribute a shift from space utilization to space industry through global precipitation observation from space. To realize the idea, we propose an application to precipitation observation using a small synthetic aperture radar (SAR) satellite constellation. Here, we discuss the feasibility of small SAR satellite observations for the precipitation measurement and its tasks (e.g. utilization of surface signals for precipitation estimates and radar/satellite operation for limited resource). We will also explore the possibility of collaboration with domestic small SAR satellite development companies. In this talk, we will present the current status.