Text files of the navigation logged with HYPACK Software during survey 2012-005-FA conducted in Baltimore, Washington, and Norfolk Canyons by the U.S. Geological Survey in 2012.

A large number of high-resolution geophysical surveys between Cape Hatteras and Georges Bank have been conducted by federal, state, and academic institutions since the turn of the century. A major goal of these surveys is providing a continuous view of bathymetry and shallow stratigraphy at the shelf edge in order to assess levels of geological activity during the current sea level highstand. In 2012, chirp seismic-reflection data was collected by the U.S. Geologial Survey aboard the motor vessel Tiki XIV near three United States mid-Atlantic margin submarine canyons. These data can be used to further our understanding of passive continental margin processes during the Holocene, as well as providing valuable information regarding potential submarine geohazards. For more information on the U.S. Geological Survey involvement in this effort, see <http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2012-005-FA>.

自本世纪之交以来，联邦机构、州级部门与学术院校已在哈特拉斯角（Cape Hatteras）与乔治浅滩（Georges Bank）之间的海域开展了大量高分辨率地球物理勘测工作。此类勘测的核心目标之一是获取陆架边缘的海底地形（bathymetry）与浅层地层（shallow stratigraphy）的连续剖面数据，以评估当前高海平面期（sea level highstand）的地质活动强度。2012年，美国地质调查局（U.S. Geological Survey）依托机动船舶“蒂基十四号”（Tiki XIV），在大西洋中部美国陆缘的三处海底峡谷附近采集了chirp地震反射（chirp seismic-reflection）数据。该数据集既可助力我们深化对全新世（Holocene）被动大陆边缘（passive continental margin）演化过程的认知，也能为潜在海底地质灾害（submarine geohazards）的风险评估提供极具价值的参考信息。如需了解美国地质调查局在此项工作中的参与详情，请访问：<http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2012-005-FA>。