September 2002 bin-averaged CTD profiles for the Georgia Coastal Ecosystems Intracoastal Waterway transect

Three hydrographic surveys were performed from September 16 to September 18, 2002, along the Intracoastal Waterway between the Altamaha River south of Wolf Island and Sapelo Sound (Intracoastal Waterway Transect, GCE-IC). Vertical CTD profiles were collected at various intervals from 0km to 29km along the transect during various 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.

2002年9月16日至9月18日，研究团队在沃尔夫岛以南阿尔塔马哈河与萨佩洛湾之间的沿海内陆航道（Intracoastal Waterway）开展了3次水文测量工作，该测区断面编号为沿海内陆航道断面GCE-IC（Intracoastal Waterway Transect, GCE-IC）。在不同潮汐工况下，沿该断面从0km至29km的区间内以不等间隔采集垂直温盐深（Conductivity Temperature Depth, CTD）剖面数据；实测参数涵盖电导率、温度、压力与光学后向散射强度，并针对每条剖面计算得到水深、盐度与密度层结参数σ-t（sigma-t）。本次处理剔除了上行测量获得的全部数据，对剩余数据按0.5米深度分层取平均值，并通过插值生成平滑剖面以供等值线绘图使用。本数据集为佐治亚海岸生态系统长期生态研究（Long-Term Ecological Research, LTER）季度水文监测计划的组成部分。