Deep-Ocean Assessment and Reporting of Tsunamis (DART(R))

As part of the U.S. National Tsunami Hazard Mitigation Program (NTHMP), the Deep Ocean Assessment and Reporting of Tsunamis (DART(R)) Project is an ongoing effort to maintain and improve the capability for the early detection and real-time reporting of tsunamis in the open ocean. DART(R) stations have been sited in regions with a history of generating destructive tsunamis to ensure early detection of tsunamis and to acquire data critical to real-time forecasts. DART(R) systems consist of an anchored seafloor bottom pressure recorder (BPR) and a companion moored surface buoy for real-time communications. An acoustic link transmits data from the BPR on the seafloor to the surface buoy. The data are then relayed via an Iridium satellite link to ground stations, which demodulate the signals for immediate dissemination to NOAA's Tsunami Warning Centers, NDBC, and PMEL. The National Centers for Environmental Information (NCEI, formerly the National Geophysical Data Center--NGDC) serves as the archive center for this data and provides the historical data to users.

搜集汇总

背景与挑战

背景概述

Deep-Ocean Assessment and Reporting of Tsunamis (DART(R)) 数据集是美国国家海啸减灾计划的一部分，旨在通过部署在易发海啸区域的深海监测站，实现海啸的早期检测和实时数据报告。该系统由海底压力记录器和表面浮标组成，通过声学和卫星链路传输数据，并归档于国家环境信息中心，为海啸预警中心和其他机构提供历史数据支持。