Tropical Storm Gordon: 72-hr Rainfall Totals over East Central Florida and WSR-88D Comparisons

摘要

Seventy-two hours of weather surveillance radar (WSR-88D) data were compared withrain gauge data during tropical storm Gordon as it impacted Central Florida on November 14-17, 1994. The WSR-88D storm total precipitation (STP) estimates were compared with 122 corresponding rain gauge readings by centering arrays of 9 and 25 STP data bins over the rain gauge locations, then performing calculations prescribed by the WSR-88D Operational Support Facility. Our results indicated the center bin STP estimates, after extreme outliners had been removed, were 46 per cent less than the corresponding 72-hr gauge totals. This difference represents an objective view of how well the radar represented rainfall without any adjustment.