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Survey tracklines along which backscatter data were collected with a Klein 3000, EdgeTech 4200 sidescan sonar and a SEA Ltd., SWATHplus-H interferometric sonar with in Barnegat Bay, New Jersey by the U.S. Geological Survey in 2011, 2012, and 2013 (Esri polyline shapefile, Geographic, WGS 84).

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DataONE2017-03-29 更新2024-06-26 收录
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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 partnership 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,其核心研究对象为新泽西海岸沿线的巴内加特湾-小蛋港河口水质。这片狭长河口是巴内加特流域的汇水区域,仅通过三处入海口与大西洋相连通,当前正面临水质恶化、藻华暴发、海草床退化,以及缺氧事件频发、大型海藻滋生、刺海荨麻泛滥与褐潮暴发等一系列问题。鉴于该河口的规模与内部问题的复杂程度,亟需采用多学科研究手段,包括对其物理特征(如水深、潮流强度与方向、海底及海底下沉积物分布)开展表征工作,并模拟各物理特征间的相互作用如何影响河口水质。来自美国地质调查局马萨诸塞州伍兹霍尔与佛罗里达州圣彼得堡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作业,并于2013年9月完成全部工作。该团队依托新泽西州环境保护部提供的经费支持,以及美国地质调查局新泽西水科学中心的后勤保障,使用一套地球物理工具完成数据采集,具体包括用于测量海底水深的条带测深声呐、用于采集声学背散射数据(可反映海底纹理与沉积物类型)的侧扫声呐,以及用于成像河口海底下方沉积物层的浅地层剖面仪。 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
创建时间:
2017-03-30
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