Monthly vertical profiles of salinity, temperature, pressure, oxygen and photosynthetically-available radiation in Sapelo River, Doboy Sound, Duplin River and Altamaha River transect surveys from April 2008 to April 2015

Monthly hydrographic surveys were performed along the Sapelo River, Doboy Sound, Duplin River and Altamaha River from April 2008 to April 2015. Vertical CTD profiles were collected from the surface to bottom during low and high tide phases at fixed stations chosen to coincide with long-term GCE-LTER moorings. Conductivity, temperature, pressure, photosynthetically-available radiation (PAR) and oxygen concentration were measured at 8 Hz using a SeaBird Electronics SBE-37 instrument, and depth, salinity and sigma-t and oxygen saturation were calculated using UNESCO algorithms. Data values collected during the upcast were deleted. This data set was collected as part of the Georgia Coastal Ecosystems LTER monthly hydrographic monitoring program, and will be updated approximately annually to include the latest observations.

2008年4月至2015年4月期间，研究团队沿萨佩洛河（Sapelo River）、多博伊湾（Doboy Sound）、杜普林河（Duplin River）与阿尔塔马哈河（Altamaha River）开展月度水文调查。在与长期GCE-LTER锚定观测站位重合的固定测点上，于涨潮与落潮时段采集从表层至水底的垂直温盐深（Conductivity-Temperature-Depth, CTD）剖面数据。采用SeaBird Electronics公司SBE-37型仪器，以8赫兹的采样频率同步测定电导率、温度、压力、光合有效辐射（Photosynthetically Available Radiation, PAR）及氧浓度；随后依托联合国教科文组织（UNESCO）算法计算得到水深、盐度、sigma-t及氧饱和度数据。CTD上浮过程采集的全部数据均已剔除。本数据集作为佐治亚海岸生态系统长期生态研究（Georgia Coastal Ecosystems LTER）月度水文监测计划的组成部分采集完成，计划约每年更新一次以纳入最新观测结果。