A buoy position monitoring method includes a buoy positioning step, an unmanned aerial vehicle receiving step and an unmanned aerial vehicle flying step. In the buoy positioning step, a plurality of buoys are put on a water surface. Each of the buoys is capable of sending a detecting signal. Each of the detecting signals is sent periodically and includes a position dataset of each of the buoys. In the unmanned aerial vehicle receiving step, an unmanned aerial vehicle is disposed on an initial position, and the unmanned aerial vehicle receives the detecting signals. In the unmanned aerial vehicle flying step, when at least one of the buoys is lost, the unmanned aerial vehicle flies to a predetermined position to get contact with the at least one buoy that is lost.

The present invention is a deployable climate blanket system for regulating temperature of a water surface, including two or more climate blanket secured one to another, each blanket configured with an interior air-filled cavity and a plurality of weights for maintaining the system into a desired position. When use of the blankets is no longer desired, the blankets can be lowered beneath the water surface so as not to interfere with boat traffic or other surface use of the water.

The present invention is a deployable climate blanket system for regulating temperature of a water surface, including two or more climate blanket secured one to another, each blanket configured with an interior air-filled cavity and a plurality of weights for maintaining the system into a desired position. When use of the blankets is no longer desired, the blankets can be lowered beneath the water surface so as not to interfere with boat traffic or other surface use of the water.

A water surface system for mitigation of tropical storms or hurricanes/typhoons/cyclones, the water surface system comprising one or more floating objects capable of minimizing water temperature increase due to sun irradiation and water evaporation and one or more boom-like structures capable of containing the floating objects in a designated area. For effective mitigation, the designated areas are the origins and paths historically most often occurred of storms/hurricanes/typhoons/cyclones.

A water surface system for mitigation of tropical storms or hurricanes/typhoons/cyclones, the water surface system comprising one or more floating objects capable of minimizing water temperature increase due to sun irradiation and water evaporation and one or more boom-like structures capable of containing the floating objects in a designated area. For effective mitigation, the designated areas are the origins and paths historically most often occurred of storms/hurricanes/typhoons/cyclones.

A launchable communication device for divers includes a flag, a flag operating assembly, and a receptacle. The flag is coupled to the flag operating assembly and is positionable between an extended position and a collapsed position to facilitate an opening and closing of the flag in order to communicate with others in the vicinity.

A launchable communication device for divers includes a flag, a flag operating assembly, and a receptacle. The flag is coupled to the flag operating assembly and is positionable between an extended position and a collapsed position to facilitate an opening and closing of the flag in order to communicate with others in the vicinity.

The present invention provides an eco-friendly underwater buoy and a manufacturing method therefor, the underwater buoy comprising: a liner main body of which the inside is hollow; a winding member which is melt welded on the outer surface of the liner main body by winding, and which absorbs external shock; and buoy couplers embedded in both ends of the liner main body so as to couple adjacent underwater buoys to each other. The present invention winds, through filament winding, a wire, in which a glass fiber, a resin and the like are mixed, around the outside of a liner structure so as to manufacture an underwater buoy, and thus, since the underwater buoy is made of a composite material, the appearance of the buoy structure can be stably maintained for a long time without damage caused by various underwater shocks, so that underwater environmental pollution caused by buoy structure damage can be minimized, thereby maximizing the eco-friendliness of the underwater buoy.

The present invention provides an eco-friendly underwater buoy and a manufacturing method therefor, the underwater buoy comprising: a liner main body of which the inside is hollow; a winding member which is melt welded on the outer surface of the liner main body by winding, and which absorbs external shock; and buoy couplers embedded in both ends of the liner main body so as to couple adjacent underwater buoys to each other. The present invention winds, through filament winding, a wire, in which a glass fiber, a resin and the like are mixed, around the outside of a liner structure so as to manufacture an underwater buoy, and thus, since the underwater buoy is made of a composite material, the appearance of the buoy structure can be stably maintained for a long time without damage caused by various underwater shocks, so that underwater environmental pollution caused by buoy structure damage can be minimized, thereby maximizing the eco-friendliness of the underwater buoy.

A floating mirror includes a buoyant body extending between a first end and a second end, and a reflective material disposed on opposite surfaces of the buoyant body.