video1.0<iframe src="https://www.loom.com/embed/af9eecddf6954861bffef42cdf81d1df" frameborder="0" width="1662" height="1246" webkitallowfullscreen mozallowfullscreen allowfullscreen></iframe>12461662Loomhttps://www.loom.com12461662https://cdn.loom.com/sessions/thumbnails/af9eecddf6954861bffef42cdf81d1df-076f23cabb964d1e.gif200.716This Loom demonstrates Sharkwatch, a system that issues real-time great white shark warnings at beaches. In May 2017, a sheriff’s helicopter over Capistrana Beach, California spotted a great white beside paddleboarders and used loudspeakers as a warning. Sharkwatch uses drone helicopter footage to detect traces within 6 seconds, then verifies whether each trace is a shark or dolphin, generating one alert per patrol for lifeguards. In a live demo, it confirms a shark with 85 percent confidence (about 3 meters so far), shows a photo, location, and risk level on a lifeguard’s phone, and escalates if no acknowledgement occurs within 45 seconds.