Seabed subbottom observation platform

Abstract

The invention discloses a seabed subbottom observation platform, comprising a recovery system and a discarding support. The recovering system comprises an integrated installation rack, a first floating ball, a second floating ball, a triad acoustics releaser, at least one high precision pressure sensor and at least one acoustic distance measurement device; the first floating ball is used as a device chamber for loading a battery, a power supply driving plate, a main control plate and an attitude sensor; the discarding support comprises a top ring rack positioned on the top and a triangle landing rack under the ring rack; each foot of the triangle landing rack is provided with a balancing weight and a stream guidance device which are the same in specifications; and the triad acoustics releaser, the high precision pressure sensor and the acoustic distance measurement device are electrically connected to the main control plate in the device chamber. The seabed subottom observation platform can guarantee stable sinking and landing and successful releasing and recovery of the recovery system, can carry out long term stable continuous observation and communication on the seabed with the depth being smaller than 7000 meters and provides a well basis to the seabed geodetic system.

Description

technical field [0001] The invention relates to scientific observation equipment, in particular to a platform for seabed positioning and observation. Background technique [0002] In recent years, frequent earthquakes and tsunamis have taken away a large number of lives and property and caused huge losses. For example, on December 26, 2004, the Mw9.2 earthquake in Banda Aceh, Sumatra, Indonesia triggered a super tsunami Due to the lack of forecast and early warning, at least 220,000 people in 13 Indian Ocean countries were killed. Hotels, villages and towns along the coast of many countries were also severely damaged, 1.8 million people were left homeless, and the economic loss was nearly 10 billion yuan. On March 11, 2011, a magnitude 9.0 earthquake occurred in the western Pacific Ocean east of Fukushima, Japan, triggering a tsunami with an average height of 10 meters and a maximum height of 24 meters. 15,843 people were killed, 3,469 people were missing, economic losses a...

AI Technical Summary

Problems solved by technology

At present, most of the global GPS observation networks are deployed on land, resulting in serious "one-sided" observations limited to land, while the seabed, which accounts for two-thirds of the total surface of the earth, has only a few observation stations in Japan, the United States, and Europe.

However, most of the world's most destructive mega-earthquakes and tsunamis occur in deep water at the margins of oceanic plates, and these areas cannot be directly observed by the current terrestrial GPS system

Even if it is possible to observe some geological phenomena near the shore, it will bring larger errors with the increase of the observation distance

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