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GCE-LTER Data Set Summary

Accession: PHY-GCEM-0210e2 Research Theme: Physical Oceanography (Monitoring)
Contributors: Daniela Di Iorio, KiRyong Kang
Title: October 2001 CTD, PAR, oxygen and chlorophyll profiles for the Georgia Coastal Ecosystems Altamaha River transect
Abstract: Eight hydrographic surveys were performed from May 30 through June 4, 2001, along an east-to-west transect up the Altamaha River in Georgia (Altamaha River Transect, GCE-AL). Vertical CTD profiles were collected at 1-2km intervals from 2km east of the line of demarcation (station -02) to 28km upriver along the transect during flood and ebb 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/a02db65383a8f074fe453a4829e9c0d8
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: 11-Oct-2001 to 16-Oct-2001
Study Sites:
GCE-AL -- Altamaha River, Georgia, USA
» Download Geographic Coverage: Google Earth
Data References: PHY-GCEM-0210e1 (Bin-averaged, interpolated physical parameters)
Project References: Salinity variations across the GCE domain
Downloads: Information

Data Table: PHY-GCEM-0210e2 (Main data table for data set PHY-GCEM-0210e2, 3907 records)

Access: Public (released 29-Oct-2003)

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

Data Formats: Spreadsheet (CSV) [870.00kb],  Text File [738.65kb],  MATLAB (GCE Toolbox) [2332.41kb],  MATLAB (Variables) [2185.89kb],  Text Report [822.16kb]

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 Flag_Depth_Total none string QA/QC flags for Water column depth measured by shipboard SONAR (flagging criteria, where "x" is Depth_Total: x<0="I", x>25="Q")
10 RealTime none integer Real-time profile data flag (low frequency data collection rate)
11 Filename none string CTD cast filename
12 CTD none integer ID number of CTD instrument used for the cast
13 Transect none string GCE cruise transect
14 Station none string GCE-LTER sampling station
15 SurveyName none string Cruise survey title
16 Survey none integer Nominal survey
17 Cast none integer CTD cast number
18 Pressure dbar floating-point Water pressure
19 Flag_Pressure none string QA/QC flags for Water pressure (flagging criteria, where "x" is Pressure: x<0="I")
20 Depth m floating-point Water depth at pressure sensor
21 Flag_Depth none string QA/QC flags for Water depth at pressure sensor (flagging criteria, where "x" is Depth: x<0="I", x>25="Q")
22 Temperature °C floating-point Water temperature
23 Flag_Temperature none string QA/QC flags for Water temperature (flagging criteria, where "x" is Temperature: x<2="Q", x>35="Q")
24 Conductivity S/m floating-point Conductivity
25 Flag_Conductivity none string QA/QC flags for Conductivity (flagging criteria, where "x" is Conductivity: x<0="I")
26 Salinity PSU floating-point Salinity
27 Flag_Salinity none string QA/QC flags for Salinity (flagging criteria, where "x" is Salinity: x<0="I", x>36="Q")
28 Density kg/m^3 floating-point Water density
29 Flag_Density none string QA/QC flags for Water density (flagging criteria, where "x" is Density: x<0="I")
30 Sigma_t kg/m^3 floating-point Sigma-t (i.e. (Water Density-1)*1000)
31 Flag_Sigma_t none string QA/QC flags for Sigma-t (i.e. (Water Density-1)*1000) (flagging criteria, where "x" is Sigma_t: x<-5="Q", x>28="Q")
32 OBS unspecified floating-point Optical back-scatter
33 Flag_OBS none string QA/QC flags for Optical back-scatter (flagging criteria, where "x" is OBS: )
34 PAR_Depth m floating-point Water depth at PAR sensor
35 Flag_PAR_Depth none string QA/QC flags for Water depth at PAR sensor (flagging criteria, where "x" is PAR_Depth: x<0="I", x>25="Q")
36 PAR µEinsteins/m^2 floating-point Photosynthetically available radiation
37 Flag_PAR none string QA/QC flags for Photosynthetically available radiation (flagging criteria, where "x" is PAR: x<0="I", x>2000="I", PAR_Depth<0="I")
38 Oxygen ml/L floating-point Oxygen concentration
39 Flag_Oxygen none string QA/QC flags for Oxygen concentration (flagging criteria, where "x" is Oxygen: x<0="I", x>16="Q", Oxygen_Sat<60="Q", Oxygen_Sat>110="Q")
40 Oxygen_Sat % floating-point Percent oxygen saturation in water
41 Flag_Oxygen_Sat none string QA/QC flags for Percent oxygen saturation in water (flagging criteria, where "x" is Oxygen_Sat: x<0="I", x<60="Q", x>110="Q")
42 ChlorA volts floating-point Uncalibrated Chlorophyll a concentration based on whole-water fluorometric analysis
43 Flag_ChlorA none string QA/QC flags for Uncalibrated Chlorophyll a concentration based on whole-water fluorometric analysis (flagging criteria, where "x" is ChlorA: x<0="I")
Statistics: Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS
Citation: Di Iorio, Daniela. 2002. October 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/a02db65383a8f074fe453a4829e9c0d8

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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.