LTER Georgia Coastal Ecosystems - September 2003 bin-averaged CTD profiles for the Georgia Coastal Ecosystems Altamaha River transect

Four hydrographic surveys were performed on September 26, 2003, along an
east-to-west transect up the Altamaha River in Georgia (Altamaha River
Transect, GCE-AL). Vertical CTD profiles were collected at 2km intervals from
the -4km to 26km upriver 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.

GCE Study Site GCE-AL -- Altamaha River, Georgia, USA. Altamaha River transect
used for GCE quarterly hydrographic monitoring surveys. Nominal profiling
stations are defined every 2km from -4km to 40km (relative to station 0km at
the line of demarcation), based on an estimated Thalweg line running up the
main river channel.