Time stamp in UTC UTC month 0 2 UTC day of the month 1..31 28 UTC hours 0..23 23 UTC minutes 45 Timed circular notice This message can be broadcast with a timetoexpire of 0 to indicate that a region is known to not have a currently active notice. Proposed transmission scheme for areatype=0 (right whale acoustic): A notice will be sent every 3 minutes for each buoy. Messages will be sent with timetoexpire of 0 when no acoustic detection has occured in the last 24 hours. When an acoustic detection, the system will send an separate broadcast for that buoy as soon as possible in addition to the normal 3 minute schedule. The (lat,lon,areatype) provide the key/id for each message. Any system is expected to overwrite any prior message message with a new message when it is received. This provide the mechanism to cancel out of date messages before they expire or extend the messages further into the future. Designated Area Code - 366 for the United States 366 Functional IDentifier - 63 63 Start time of most recent notice Center of the area/zone Minutes from the start time until the notice expires. Max is aprox 23 days Minutes 32767 No detection or notice not active in region 1 Distance from center of detection zone (lat/lon above). Distance in increments of 10 meters m 0.1 0 163830 5000 What does this circular area represent This makes no recommendation on representation Right whale detection Restricted Area Prohibited Area (no unauthorized entry) Diving operations Underwater obstruction Fishing nets Oil in water Towing prohibited Anchorage area (large vessels) Anchorage area (small vessels) Anchorage area (general) Anchorage area (deep water) Anchorage area (tanker) Anchorage area (24h max) Anchorage area (explosives) Sea-plane landing area Anchorage area (sea planes) Anchoring prohibited Fishing prohibited Actively dumping explosives Actively dumping Firing danger area Military area, entry prohibited Mine-laying practice area Submarine transit and exercise area Mine field Fast ice Sea ice Logs Dredging area Cargo transhipment area Incineration area SAR - Region of search (what SAR keys should there be?) SAR - Man Overboard Debris, Generic Restricted visibility Restricted visibility, fog Restricted visibility, smoke Autonmous Underwater Vehicle (AUV) operations Remotely Operated Vehicle (ROV) operations - teather in water Diving operations Swimmers in water LNG security zone 1