Jared Kluesner, Patrick Hart, George Snyder, Peter Triezenberg
Seismic reflection data collected within the US Exclusive Economic Zone (EEZ) represent a scientific resource with inestimable value. The US Geological Survey (USGS), in partnership with the Bureau of Ocean Energy Management (BOEM), provide unrestricted public access to seismic data acquired since 1975 through the National Archive of Marine Seismic Surveys (NAMSS) portal. This map‐searchable web portal provides access to over 1,100 two‐ and three‐dimensional (2D, 3D) marine seismic data sets collected by the USGS and by the offshore resource industry. The industry data sets are released by BOEM under The Code of Federal Regulations 30 CFR Parts 551 and 580, allowing for the release of seismic reflection data after the completed 25‐year proprietary term from the issuance of the Geological and Geophysical (G&G) permit. The web portal provides tools to filter and identify surveys within the US EEZ and navigation and shapefiles can be downloaded with each survey. Seismic data sets downloaded from NAMSS have been instrumental in numerous scientific investigations along the US EEZ. These include studies focused on offshore marine geohazards, such as fault systems and submarine landslides, as well as gas hydrates and other geologic processes. Acquisition of such data sets, especially pneumatic‐sourced surveys, is becoming progressively more difficult due to environmental concerns and associated costs, thus preservation and public access to such high‐quality data sets is critical to maintaining the ability to conduct offshore seismic reflection scientific research along the US EEZ.
在美国专属经济区 (EEZ) 内收集的地震反射数据是一种具有不可估量价值的科学资源。美国地质调查局 (USGS) 与海洋能源管理局 (BOEM) 合作，通过国家海洋地震勘探档案 (NAMSS) 门户网站，向公众提供自 1975 年以来获取的地震数据的不受限制的访问权限。通过这个可在地图上搜索的门户网站，可以访问美国地质调查局（USGS）和近海资源行业收集的 1100 多个二维和三维（2D、3D）海洋地震数据集。行业数据集由美国联邦海洋开发局（BOEM）根据《联邦法规汇编》（Code of Federal Regulations）30 CFR Parts 551 和 580 发布，允许在地质和地球物理（G&G）许可证签发 25 年专有期结束后发布地震反射数据。该门户网站提供过滤和识别美国专属经济区内勘测的工具，每次勘测都可下载导航和形状文件。从 NAMSS 下载的地震数据集对美国专属经济区沿线的许多科学调查都很有帮助。其中包括对近海海洋地质灾害（如断层系统和海底滑坡）以及天然气水合物和其他地质过程的研究。由于环境问题和相关成本，获取此类数据集（尤其是气动源勘测）正变得越来越困难，因此，要保持在美国专属经济区沿岸开展近海地震反射科学研究的能力，保存并向公众开放此类高质量数据集至关重要。
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Emily E. Zawacki, Rebecca Bendick, Robert L. Woodward
A new organization, EarthScope Consortium, was formed 1 January 2023 following the merger of the Incorporated Research Institutions for Seismology (IRIS) and UNAVCO. EarthScope Consortium is a consortium dedicated to supporting transformative global geophysical research and education.
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