国产精品99一区二区三_免费中文日韩_国产在线精品一区二区_日本成人手机在线

U.S. geoscientists develop new technology to improve forecasting of earthquakes, tsunamis

Source: Xinhua| 2019-11-24 05:40:11|Editor: xuxin
Video PlayerClose

LOS ANGELES, Nov. 23 (Xinhua) -- U.S. geoscientists have successfully developed and tested a new high-tech shallow water buoy that can detect the small movements and changes in Earth's seafloor that are often a precursor to deadly natural hazards like earthquakes, volcanoes and tsunamis.

The buoy was installed off Egmont Key in the Gulf of Mexico last year and has been producing data on the three-dimensional motion of the sea floor, according to a release by the University of South Florida (USF) Friday.

Ultimately the system will be able to detect small changes in the stress and strain Earth's crust, said Prof. Tim Dixon with the USF School of Geosciences, who led the research project.

The patent-pending seafloor geodesy system is an anchored spar buoy topped by high precision Global Positioning System (GPS). The buoy's orientation is measured using a digital compass that provides heading, pitch and roll information - helping to capture the crucial side-to-side motion of Earth that can be diagnostic of major tsunami-producing earthquakes, according to Dixon.

Their findings were published in the Journal of Geophysical Research-Solid Earth.

Shallow coastal waters are a more challenging environment but also an important one for many applications, including certain types of devastating earthquakes, according to the research team.

Offshore strain accumulation and release processes are critical for understanding megathrust earthquakes and tsunamis, they noted.

The experimental buoy rests on the sea bottom using a heavy concrete ballast and has been able to withstand several storms. The system is capable of detecting movements as small as 1 to 2 centimeters, Dixon said.

TOP STORIES
EDITOR’S CHOICE
MOST VIEWED
EXPLORE XINHUANET
010020070750000000000000011100001385786721
主站蜘蛛池模板: 政和县| 松溪县| 吴桥县| 梅河口市| 新乡市| 简阳市| 开阳县| 厦门市| 海口市| 木兰县| 永兴县| 民和| 宁德市| 宁陕县| 隆化县| 当雄县| 富川| 龙泉市| 鸡泽县| 泰州市| 庆元县| 萝北县| 荆州市| 莱芜市| 泗水县| 丰城市| 景德镇市| 梅河口市| 色达县| 华安县| 轮台县| 义马市| 保定市| 易门县| 宁城县| 开封市| 错那县| 基隆市| 清河县| 巍山| 卫辉市|