Abstract
X-band radar measurements have been applied for rip current observation. Radar images were collected at research pier HORS on a straight sandy coast. Time averaged images of every 2 minutes have been processed, which frequently display characteristic cross-shore patterns that resemble to neck and head of a rip current. An image analysis program is developed to detect rip current occurrence and estimate migration speed of rip heads. Results were compared with manually inspected results of the radar images, and fairly well agreement was confirmed. Results of the detection are correlated with tide and weather conditions.
