The invention relates to the field of
seabed observation, and particularly relates to a
seabed sand wave long-term observation device and method applied to an
internal wave development area. A supporting mechanism is in the shape of a balance and comprises a gravity anchor, hexagonal rods, an annular
instrument control cabin and supporting rods, the gravity anchor is positioned at the bottom of the whole device, the gravity anchor is connected with the annular
instrument control cabin above the gravity anchor through a plurality of hexagonal rods, an
internal wave energy power generation mechanism is arranged in the annular
instrument control cabin, two supporting rods are symmetrically fixed on the outer side of the annular instrument control cabin, one supporting rod is connected with amultifunctional observation rod through a mechanical grabbing ring at the end of the supporting rod, the other supporting rod is connected with a sandy
sediment sampling rod through a mechanical grabbing ring at the end of the supporting rod, and the top of the annular instrument control cabin is connected with a subsurface
buoy at a
seawater boundary layer through a
Kevlar cable. Ocean
internal wave energy is fully utilized, long-term in-situ observation of
seabed sand
waves is achieved, the observation result is accurate and reliable, the observation cost is low, and collection and recoveryof seabed
sand wave soil samples are achieved.