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.

作为美国国家海啸减灾计划（U.S. National Tsunami Hazard Mitigation Program, NTHMP）的组成部分，全球海啸深海评估与报告系统（Deep Ocean Assessment and Reporting of Tsunamis, DART®）项目是一项长期开展的工作，旨在维持并提升远洋海啸的早期侦测与实时报告能力。DART®台站已部署在曾引发破坏性海啸的海域，以确保能够及早发现海啸，并获取对实时海啸预报至关重要的数据。DART®系统由一台锚定式海底压力记录仪（anchored seafloor bottom pressure recorder, BPR）以及配套的系泊水面实时通信浮标组成。声学链路将海底BPR采集的数据传输至水面浮标，随后数据通过铱星链路（Iridium satellite link）中继至地面站，地面站对接收到的信号进行解调，并将数据即时分发至美国国家海洋和大气管理局（National Oceanic and Atmospheric Administration, NOAA）海啸预警中心、美国国家数据浮标中心（National Data Buoy Center, NDBC）以及太平洋海洋环境实验室（Pacific Marine Environmental Laboratory, PMEL）。美国国家环境信息中心（National Centers for Environmental Information, NCEI，前身为国家地球物理数据中心（National Geophysical Data Center, NGDC））作为该数据集的档案存储中心，可为用户提供历史海啸相关数据。