Georgia Coastal Ecosystems LTER Data Set Details

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GCE-LTER Data Set Summary

Accession:

PHY-GCEM-0210a2

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 Doboy Sound transect

Abstract:

Five hydrographic surveys were performed between October 12 and October 14, 2001, 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 0km to 12km along the transect during low tide and high tide conditions. 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/8bd5ddf27b124900ef6d5b4c1fc3132f

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:

12-Oct-2001 to 14-Oct-2001

Study Sites:

GCE-DB -- Doboy Sound, Georgia, USA

» Download Geographic Coverage: Google Earth

Data References:

PHY-GCEM-0210a1 (Bin-averaged, interpolated physical parameters)

Project References:

Salinity variations across the GCE domain

Downloads:

Data Table: PHY-GCEM-0210a2 (Main data table for data set PHY-GCEM-0210a2, 3640 records)

Access: Public (released 29-Oct-2003)

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

Data Formats: Spreadsheet (CSV) [821.52kb], Text File [686.22kb], MATLAB (GCE Toolbox) [2088.66kb], MATLAB (Variables) [1979.99kb], Text Report [748.11kb]

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 Doboy Sound transect. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/8bd5ddf27b124900ef6d5b4c1fc3132f

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