Survey tracklines along which bathymetric data were collected with a SEA Ltd., SWATHplus-H interferometric sonar with in the Barnegat Bay, New Jersey by the U.S. Geological Survey in 2011, 2012, and 2013 (Esri polyline shapefile, Geographic, WGS 84).

Water quality in the Barnegat Bay-Little Egg Harbor estuary along the New Jersey coast is the focus of a multidisciplinary research project begun in 2011 by the U.S. Geological Survey (USGS) in cooperation with the New Jersey Department of Environmental Protection. This narrow estuary is the drainage for the Barnegat Watershed and flushed by just three inlets connecting it to the Atlantic Ocean, is experiencing degraded water quality, algal blooms, loss of seagrass, and increases in oxygen -depletion events, seaweed, stinging nettles, and brown tide. The scale of the estuary and the scope of the problems within it necessitate a multidisciplinary approach that includes characterizing its physical characteristics (for example, depth, magnitude and direction of tidal currents, distribution of seafloor and subseafloor sediment) and modeling how the physical characteristics interact to affect the estuary's water quality. Scientists from USGS Coastal and Marine Geology Program offices in Woods Hole, Massachusetts, and St. Petersburg, Florida, began mapping the seafloor of the Barnegat Bay-Little Egg Harbor estuary in November 2011 and completed in September 2013. With funding from the New Jersey Department of Environmental Protection and logistical support from the USGS New Jersey Water Science Center, they collected data with a suite of geophysical tools, including swath bathymetric sonar for measuring seafloor depth, a sidescan sonar for collecting acoustic-backscatter data (which provides information about seafloor texture and sediment type), and a subbottom profiler for imaging sediment layers beneath the floor of the estuary. 2011-041-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2011-041-FA 2012-003-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2012-003-FA 2013-014-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2013-014-FA 2013-030-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2013-030-FA

美国地质调查局（U.S. Geological Survey，USGS）于2011年联合新泽西州环境保护部启动一项多学科研究项目，核心聚焦新泽西沿岸巴内加特湾-小蛋港河口（Barnegat Bay-Little Egg Harbor estuary）的水质状况。该狭长河口为巴内加特流域的汇水区域，仅通过三处入海口与大西洋实现水体交换，当前正面临水质退化、藻华（algal blooms）暴发、海草床消失，以及缺氧事件（oxygen-depletion events）、海藻、刺荨麻和棕潮（brown tide）频发等多重环境问题。河口的空间尺度与内部问题的复杂程度，要求采用多学科研究方法，涵盖对其物理特征的表征（例如水深、潮流的幅值与流向、海底及海底以下沉积物的分布），以及模拟各类物理特征如何相互作用以影响河口水质。隶属于美国地质调查局马萨诸塞州伍兹霍尔（Woods Hole）及佛罗里达州圣彼得堡（St. Petersburg）海岸与海洋地质项目办公室的科研人员，于2011年11月启动巴内加特湾-小蛋港河口的海底测绘工作，并于2013年9月完成全部作业。依托新泽西州环境保护部提供的资金支持，以及美国地质调查局新泽西水科学中心提供的后勤保障，科研团队使用一套地球物理工具开展数据采集工作，包括用于测量海底水深的条带测深声呐（swath bathymetric sonar）、用于采集声学背散射数据（acoustic-backscatter data，可反映海底纹理与沉积物类型）的侧扫声呐（sidescan sonar），以及用于成像河口海底以下沉积物层的浅地层剖面仪（subbottom profiler）。
2011-041-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2011-041-FA
2012-003-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2012-003-FA
2013-014-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2013-014-FA
2013-030-FA: http://woodshole.er.usgs.gov/operations/ia/public_ds_info.php?fa=2013-030-FA