June 2003 bin-averaged CTD profiles for the Georgia Coastal Ecosystems Sapelo River transect

Three hydrographic surveys were performed on June 20, 2003, along a transect from Sapelo Sound up the Sapelo River to Eulonia, Georgia (Sapelo River Transect, GCE-SP). Vertical CTD profiles were collected at 3-4km intervals from -12km to 36km during low and high tidal regimes. 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6月20日，针对佐治亚州萨佩洛湾（Sapelo Sound）沿萨佩洛河（Sapelo River）至尤洛尼亚（Eulonia）的断面（萨佩洛河断面，GCE-SP），共开展了3次水文测量作业。在低潮与高潮潮汐工况下，于-12km至36km的区间内以3~4km的间隔采集垂直温盐深（CTD）剖面数据。实测项目包括电导率、温度、压力及光学后向散射信号，并为每条剖面计算得到深度、盐度与西格玛-t（sigma-t）值。本研究剔除了仪器上升程采集的无效数据，将剩余数据以0.5m为深度分层进行平均，随后通过插值生成平滑剖面以用于等值线绘图。本数据集系佐治亚海岸生态系统长期生态研究（LTER）季度水文监测项目的采集成果之一。