Georgia Coastal Ecosystems LTER Data Set Details

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GCE-LTER Data Set Summary

Accession:

PHY-GCEM-0111d

Research Theme:

Physical Oceanography (Monitoring)

Contributors:

Daniela Di Iorio, KiRyong Kang

Title:

Spring 2001 CTD profiles for the Georgia Coastal Ecosystems Altamaha River transect

Abstract:

A series of four hydrographic surveys were performed from May 30 through June 4, 2001, along an east-to-west transect up the Altamaha River in Georgia. Vertical CTD profiles were collected at 1-2km intervals from 4km east of the line of demarcation (station -4) to 28km 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.

DOI:

10.6073/pasta/50e439f5a63d6f06b3830fc6cdd7199f

Key Words:

conductivity, Cruise CTD Profiling, density, depth, estuaries, hydrography, pressure, salinity, temperature, water column

LTER Core Area:

Inorganic Matter

Research Themes:

GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Physical Oceanography, Hydrography/Hydrology

Study Period:

30-May-2001 to 04-Jun-2001

Study Sites:

GCE-AL -- Altamaha River, Georgia, USA

» Download Geographic Coverage: Google Earth

Data References:

PHY-GCEM-0205d (Original data set prior to bin-averaging, interpolation)

Project References:

Salinity variations across the GCE domain

Publications:

Sheldon, J.E. and Alber, M. 2005. Comparing Transport Times Through Salinity Zones in the Ogeechee and Altamaha River Estuaries Using SqueezeBox. In: Hatcher, K.J. (editor). Proceedings of the 2005 Georgia Water Resources Conference. Institute of Ecology, University of Georgia, Athens, Georgia.

Downloads:

Data Table: PHY-GCEM-0111d (Main data table for data set PHY-GCEM-0111d, 733 records)

Access: Public (released 19-Nov-2002)

Metadata: Text (ESA FLED), XML (Ecological Metadata Language)

Data Formats: Spreadsheet (CSV) [101.51kb], Text File [97.18kb], MATLAB (GCE Toolbox) [473.77kb], MATLAB (Variables) [442.89kb], Text Report [144.83kb]

Column List:(hide)

Column	Name	Units	Type	Description
1	Cruise	none	string	GCE-LTER research cruise identifier (LTER[MM][YY])
2	Year	YYYY	integer	Calendar year
3	Month	MM	integer	Calendar month
4	Day	DD	integer	Calendar day
5	Hour	hours	floating-point	Fractional hours GMT
6	Longitude	degrees	floating-point	Geographic longitude
7	Latitude	degrees	floating-point	Geographic latitude
8	Depth_Total	m	floating-point	Water column depth measured by shipboard SONAR
9	RealTime	none	integer	Real-time profile data flag (low frequency data collection rate)
10	CTD	none	integer	ID number of CTD instrument used for the cast
11	Transect	none	string	GCE cruise transect
12	Station	none	string	GCE-LTER sampling station
13	SurveyName	none	string	Cruise survey title
14	Survey	none	integer	Nominal survey
15	Cast	none	integer	CTD cast number
16	Depth	m	floating-point	Water depth at pressure sensor
17	Temperature	°C	floating-point	Water temperature
18	Conductivity	S/m	floating-point	Conductivity
19	Salinity	PSU	floating-point	Salinity
20	Density	kg/m^3	floating-point	Water density
21	Sigma_t	kg/m^3	floating-point	Sigma-t (i.e. (Water Density-1)*1000)
22	OBS	unspecified	floating-point	Optical back-scatter

Statistics:

Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS

Citation:

Di Iorio, Daniela. 2001. Spring 2001 CTD profiles for the Georgia Coastal Ecosystems Altamaha River transect. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/50e439f5a63d6f06b3830fc6cdd7199f

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