March 2003 bin-averaged CTD profiles for the Georgia Coastal Ecosystems Duplin River transect

Two hydrographic surveys were performed on March 26 and March 28, 2003, along an south-to-north transect up the Duplin River on Sapelo Island, Georgia (Duplin River Transect, GCE-DP). Vertical CTD profiles were collected at various nominal stations along the transect during various tidal conditions. Conductivity, temperature, pressure and optical backscatter were measured, and depth, salinity and sigma-t were calculated for each profile. Data values collected on the upcast were deleted, and the remaining data were averaged within 0.5m depth bins and interpolated to produce a smooth profile for contouring. This data set was collected as part of the Georgia Coastal Ecosystems LTER quarterly hydrographic monitoring program.

2003年3月26日与3月28日，研究团队沿佐治亚州萨佩洛岛（Sapelo Island）杜普林河（Duplin River）自南向北的河道断面开展了两次水文调查（杜普林河断面，GCE-DP）。本次调查在该断面的多个标称测站，于不同潮汐条件下采集了垂直方向的CTD（Conductivity Temperature Depth，温盐深仪）剖面数据。测量参数涵盖电导率、温度、压力与光学后向散射系数，同时针对每条剖面计算得到水深、盐度及密度参数σ_t。研究人员删除了上行测量阶段采集的数据，将剩余数据按0.5米深度分层取平均值，并通过插值处理生成平滑剖面以用于等值线绘制。本数据集为佐治亚州海岸生态系统LTER（Long-Term Ecological Research，长期生态研究）季度水文监测计划的一部分。