May 2004 CTD, PAR, oxygen and chlorophyll profiles for the Georgia Coastal Ecosystems Sapelo River transect

Three hydrographic surveys were performed on May 29, 2004, along a transect from Sapelo Sound up the Sapelo River to Eulonia, Georgia (Sapelo River Transect, GCE-SP). Vertical CTD profiles were collected at approximately 3-4km intervals from 0km to 36km during low and high tidal regimes. Conductivity, temperature, pressure, optical back scatter, photosynthetically-available radiation, oxygen and chlorophyll a fluorescence were measured, and depth, salinity and sigma-t were calculated for each profile. Data values collected during the upcast were deleted. This data set was collected as part of the Georgia Coastal Ecosystems LTER quarterly hydrographic monitoring program.2004年5月29日，研究团队沿佐治亚州萨佩洛湾（Sapelo Sound）溯萨佩洛河（Sapelo River）至尤洛尼亚（Eulonia）的断面开展了三次水文调查（萨佩洛河断面，GCE-SP）。在涨潮与落潮工况下，于0km至36km的区间内以约3-4km的间隔采集垂直温盐深（CTD，Conductivity Temperature Depth）剖面。本次测量获取了电导率、温度、压力、光学后向散射、光合有效辐射、溶解氧及叶绿素a荧光数据，并针对每条剖面计算水深、盐度与sigma-t密度参数。研究人员弃用了仪器上行过程中采集的所有数据值。本数据集为佐治亚海岸生态系统长期生态研究（LTER，Long Term Ecological Research）季度水文监测计划的采集成果之一。