The SACR‑XKa (Scanning ARM Cloud Radar – X/Ka band) is a mobile, dual‑band, dual‑polarization, coherent Doppler radar system designed for advanced meteorological and atmospheric research applications. The system combines solid‑state X‑band (9.4 GHz) and Ka‑band (35.2 GHz) radars on a scanning pedestal, enabling simultaneous observations across two complementary microwave frequencies.
The SACR‑XKa system was manufactured by ProSensing Inc. (USA), a long‑standing supplier of operational and research radar systems to national meteorological agencies and scientific institutions worldwide. The system architecture is derived from the proven SACR radar family deployed by the U.S. Department of Energy Atmospheric Radiation Measurement (ARM) program at permanent and mobile sites globally. These systems have demonstrated continuous, unattended 24/7 operation in harsh coastal, tropical, arctic, and mountainous environments.
The SACR‑XKa system provides a solid‑state radar solution capable of supporting weather surveillance, cloud microphysics studies, precipitation process research, and severe weather monitoring. The system is housed in two ISO‑compliant 20‑ft sea containers (the Radar Shelter and Operations Shelter), allowing the system to be transported and deployed at sites throughout Taiwan or abroad.
