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This paper discusses an innovative modular and scalable network of 449 MHz wind profilers designed for atmospheric research. Focused on ease of deployment and advanced hardware features, the system utilizes digital and FPGA technology for distributed transmission and reception. The profilers are capable of 30-meter altitude resolution up to 7 km and have a rapid one-minute time resolution. Ongoing testing of prototypes shows promising performance compared to traditional 915 MHz systems, and collaborations with lidar and other instruments are being explored for improved data collection.
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A New Rapidly Deployable Wind Profiler Network for Atmospheric Research Stephen A. Cohn*, William Brown, Brad Lindseth, Charlie Martin, Sandra Thurn, Terry Hock, and Junhong Wang National Center for Atmospheric Research, Boulder, CO *303-497-8826 cohn@ucar.edu • Technology and Goals • Modularity and scalability • Ease of deployment – remote system monitor • Advanced hardware – digital, FPGA, distributed Tx and Rx • Innovative signal processing – SA winds, RIM • Expandability, Instrument host 449 MHz Wind Profiler: Basic Building Block Salt Lake City With 18 panels we create One antenna panel 6 BOUNDARY LAYER wind profilers • Hexagonal symmetry • 449 MHz • 18 patches Or with 14 panels we create Or with 19 panels we create • A distributed network of six 3-panel profilers • up to 4 km • 30-m altitude resolution • 1-minute time resolution Example: T-REX 2 MID-TROPOSPHERIC wind profilers • Current Status • Testing 3-panel boundary-layer prototype • Good performance compared with traditional 915 MHz wind profiler • Building 7-panel mid-tropospheric prototype • Evaluating complimentary instruments • (lidars, surface energy balance) • Looking for potential partners and users New 449 MHz Wind Profiler • A network of two • 7-panel profilers • up to 7 km • 30-m to 200-m altitude resolution • 1-minute time resolution Traditional 915 MHz Wind Profiler 1 FULL-TROPOSPHERIC wind profiler Salt Lake Valley, Jan 2011 • An ST radar (19-panel) • up to 15 km • 100-m to 200-m altitude resolution • 5-minute time res. From Stohl et al. 2003, revised. Not to scale!