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GCE-LTER Data Set Summary

Accession: PHY-GCEM-0205d Research Theme: Physical Oceanography (Monitoring)
Contributors: Daniela Di Iorio, KiRyong Kang
Title: Spring 2001 CTD, PAR, oxygen and chlorophyll 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, optical back scatter, photosynthetically-available radiation, oxygen and chlorophyll a fluorescence were measured, and depth, salinity and sigma-t were calculated for each profile. Data values collected during the upcast were deleted. This data set was collected as part of the Georgia Coastal Ecosystems LTER quarterly hydrographic monitoring program.
DOI: 10.6073/pasta/fa53bc9bf6405e1bdfeeb3c895f6563c
Key Words: chlorophyll, conductivity, Cruise CTD Profiling, density, depth, estuaries, hydrography, oxygen, photosynthetically active radiation, 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-0111d (Bin-averaged, interpolated physical parameters)
Project References: Salinity variations across the GCE domain
Downloads: Information

Data Table: PHY-GCEM-0205d (Main data table for data set PHY-GCEM-0205d, 5810 records)

Access: Public (released 19-Nov-2002)

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

Data Formats: Spreadsheet (CSV) [923.31kb],  Text File [961.10kb],  MATLAB (GCE Toolbox) [3147.39kb],  MATLAB (Variables) [3122.71kb],  Text Report [1040.67kb]

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 Pressure dbar floating-point Water pressure
18 Depth m floating-point Water depth at pressure sensor
19 Temperature °C floating-point Water temperature
20 Conductivity S/m floating-point Conductivity
21 Salinity PSU floating-point Salinity
22 Density kg/m^3 floating-point Water density
23 Sigma_t kg/m^3 floating-point Sigma-t (i.e. (Water Density-1)*1000)
24 OBS none floating-point Optical back-scatter
25 PAR_Depth m floating-point Water depth at PAR sensor
26 PAR µEinsteins/m^2 floating-point Photosynthetically available radiation
27 Oxygen ml/L floating-point Oxygen concentration
28 Oxygen_Sat % floating-point Percent oxygen saturation in water
29 ChlorA v floating-point Uncalibrated Chlorophyll a concentration based on whole-water fluorometric analysis
Statistics: Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS
Citation: Di Iorio, Daniela. 2002. Spring 2001 CTD, PAR, oxygen and chlorophyll 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/fa53bc9bf6405e1bdfeeb3c895f6563c

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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.