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GCE-LTER Data Set Summary

Accession: PHY-GCEM-0302a1 Research Theme: Physical Oceanography (Monitoring)
Contributors: Daniela Di Iorio, KiRyong Kang
Title: September 2002 bin-averaged CTD profiles for the Georgia Coastal Ecosystems Doboy Sound transect
Abstract: Two hydrographic surveys were performed on September 16, 2002, along an east-to-west transect through Doboy Sound near Sapelo Island, Georgia (Doboy Sound Transect, GCE-DB). Vertical CTD profiles were collected at approximately 2km intervals from -2km to 10km along the transect during low tide and high tide conditions. 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/90f38d7b610376e46754938513242cf3
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: 16-Sep-2002 to 16-Sep-2002
Study Sites:
GCE-DB -- Doboy Sound, Georgia, USA
» Download Geographic Coverage: Google Earth
Data References: PHY-GCEM-0302a2 (Original data set prior to bin-averaging, interpolation)
Project References: Salinity variations across the GCE domain
Downloads: Information

Data Table: PHY-GCEM-0302a1 (Main data table for data set PHY-GCEM-0302a1, 213 records)

Access: Public (released 01-Feb-2004)

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

Data Formats: Spreadsheet (CSV) [32.75kb],  Text File [29.87kb],  MATLAB (GCE Toolbox) [253.27kb],  MATLAB (Variables) [225.66kb],  Text Report [62.83kb]

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 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. September 2002 bin-averaged CTD profiles for the Georgia Coastal Ecosystems Doboy Sound transect. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/90f38d7b610376e46754938513242cf3

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This material is based upon work supported by the National Science Foundation under grants OCE-9982133, OCE-0620959, OCE-1237140 and OCE-1832178. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation.