Georgia Coastal Ecosystems LTER Data Set Details

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GCE-LTER Data Set Summary

Accession:

PHY-GCEM-0304e1

Research Theme:

Physical Oceanography (Monitoring)

Contributors:

Daniela Di Iorio, KiRyong Kang

Title:

December 2002 bin-averaged CTD profiles for the Georgia Coastal Ecosystems Sapelo River transect

Abstract:

Three hydrographic surveys were performed on December 12, 2002, 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 2km intervals from 0km to 36km during low and high 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/0319284c5617fbd1f4e315d1826e1709

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:

12-Dec-2002 to 12-Dec-2002

Study Sites:

GCE-SP -- Sapelo River, Georgia, USA

» Download Geographic Coverage: Google Earth

Data References:

PHY-GCEM-0304e2 (Original data set prior to bin-averaging, interpolation)

Project References:

Salinity variations across the GCE domain

Downloads:

Data Table: PHY-GCEM-0304e1 (Main data table for data set PHY-GCEM-0304e1, 225 records)

Access: Public (released 17-Apr-2004)

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

Data Formats: Spreadsheet (CSV) [34.72kb], Text File [31.90kb], MATLAB (GCE Toolbox) [273.73kb], MATLAB (Variables) [248.72kb], Text Report [70.15kb]

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	Filename	none	string	CTD cast filename
11	CTD	none	integer	ID number of CTD instrument used for the cast
12	Transect	none	string	GCE cruise transect
13	Station	none	string	GCE-LTER sampling station
14	SurveyName	none	string	Cruise survey title
15	Survey	none	integer	Nominal survey
16	Cast	none	integer	CTD cast number
17	Depth	m	floating-point	Water depth at pressure sensor
18	Temperature	°C	floating-point	Water temperature
19	Conductivity	S/m	floating-point	Conductivity
20	Salinity	PSU	floating-point	Salinity
21	Density	kg/m^3	floating-point	Water density
22	Sigma_t	kg/m^3	floating-point	Sigma-t (i.e. (Water Density-1)*1000)
23	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. 2003. December 2002 bin-averaged CTD profiles for the Georgia Coastal Ecosystems Sapelo River transect. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/0319284c5617fbd1f4e315d1826e1709

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