Georgia Coastal Ecosystems LTER Data Set Details

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GCE-LTER Data Set Summary

Accession:

PHY-GCEM-0303b1

Research Theme:

Physical Oceanography (Monitoring)

Contributors:

Jackson O. Blanton, Julie Amft, Ken Helm, Wade Sheldon

Title:

Continuous salinity, temperature and depth measurements from moored hydrographic data loggers deployed at GCE2_Hydro (Four Mile Island, Georgia) from 26-Oct-2001 through 31-Dec-2001

Abstract:

Conductivity, temperature and pressure were measured continuously at Georgia Coastal Ecosystems LTER sampling location GCE2_Hydro (Four Mile Island, Georgia) from 26-Oct-2001 through 31-Dec-2001. Observations were logged at 30 minute intervals by moored Sea-Bird Electronics MicroCAT 37-SM data loggers and downloaded approximately bimonthly. Salinity, depth and sigma-t were calculated from the measured parameters using standard UNESCO algorithms. This data set was collected as part of the GCE-LTER Project continuous salinity, temperature and water level monitoring program.

DOI:

10.6073/pasta/ba38f81397c5472fe0f9650639a41d70

Key Words:

conductivity, daily, density, depth, GCE2, Hydrographic Moorings, hydrography, monitoring, moorings, pressure, salinity, sonde, temperature, water column, water quality

LTER Core Area:

Inorganic Matter

Research Themes:

GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Physical Oceanography

Study Period:

26-Oct-2001 to 31-Dec-2001

Study Sites:

GCE-SP -- Sapelo River, Georgia, USA

» Download Geographic Coverage: Google Earth

Project References:

GCE Hydrographic Monitoring, Salinity variations across the GCE domain

Downloads:

Data Table: PHY-GCEM-0303b1 (Main data table for data set PHY-GCEM-0303b1, 3184 records)

Access: Public (released 01-May-2003)

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

Data Formats: Spreadsheet (CSV) [410.10kb], Text File [371.09kb], MATLAB (GCE Toolbox) [659.81kb], MATLAB (Variables) [614.93kb], Text Report [416.15kb]

Column List:(display)

Column	Name	Units	Type	Description
1	Site	none	integer	Nearest nominal GCE-LTER sampling site
2	Station	none	string	Station determined by geographic lookup of coordinates in reference file 'geo_locations.mat' using a distance tolerance of 0.5km
3	Longitude	degrees	floating-point	Geographic longitude in decimal degrees
4	Latitude	degrees	floating-point	Geographic latitude in decimal degrees
5	Instrument	none	integer	Serial number of the SBE 37-SM MicroCAT instrument used for the observations
6	Date	yyyy-mm-dd HH:MM:SS - GMT	string	Calendar date and time of observation
7	Year	YYYY	integer	Calendar year
8	Month	MM	integer	Calendar month
9	Day	DD	integer	Calendar day
10	Hour	hr	integer	Hours (GMT)
11	Minute	min	integer	Minutes
12	Temperature	°C	floating-point	Water temperature
13	Flag_Temperature	none	string	QA/QC flags for Water temperature (flagging criteria, where "x" is Temperature: x<0="Q", x>35="Q", Depth<0.2="Q", flag_valuechange(x, 5, 5, 3)="S", manual)
14	Conductivity	S/m	floating-point	Conductivity
15	Flag_Conductivity	none	string	QA/QC flags for Conductivity (flagging criteria, where "x" is Conductivity: manual)
16	Pressure	dbar	floating-point	Water pressure at sensor (approximately equivalent to water depth within 3% error)
17	Flag_Pressure	none	string	QA/QC flags for Water pressure at sensor (approximately equivalent to water depth within 3% error) (flagging criteria, where "x" is Pressure: x<0.2="Q", x>10="Q")
18	Depth	m	floating-point	Water depth to the pressure sensor of the moored sonde
19	Flag_Depth	none	string	QA/QC flags for Water depth to the pressure sensor of the moored sonde (flagging criteria, where "x" is Depth: x<0.2="Q", x>10="Q")
20	Salinity	PSU	floating-point	Salinity
21	Flag_Salinity	none	string	QA/QC flags for Salinity (flagging criteria, where "x" is Salinity: x<0="I", x>36="Q", Depth<0.2="Q", flag_valuechange(x, 10, 0, 3)="S", manual)
22	Sigma_t	kg/m^3	floating-point	Sigma-t (i.e. Density-1)
23	Flag_Sigma_t	none	string	QA/QC flags for Sigma-t (i.e. Density-1) (flagging criteria, where "x" is Sigma_t: x<-5="Q", Depth<0.2="Q", x>28="Q", manual)

Data Table: PHY-GCEM-0303b1_Daily (Derived data table for data set PHY-GCEM-0303b1 containing daily-aggregated statistical summary data, 67 records)

Access: Public (released 01-May-2003)

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

Data Formats: Spreadsheet (CSV) [25.72kb], Text File [24.32kb], MATLAB (GCE Toolbox) [283.39kb], MATLAB (Variables) [252.81kb], Text Report [74.05kb]

Column List:(display)

Column	Name	Units	Type	Description
1	Site	none	integer	Nearest nominal GCE-LTER sampling site
2	Longitude	degrees	floating-point	Geographic longitude in decimal degrees
3	Latitude	degrees	floating-point	Geographic latitude in decimal degrees
4	Date	yyyy-mm-dd	string	Fractional MATLAB serial day (based on 1 = January 1, 0000)
5	Year	YYYY	integer	Calendar year
6	Month	MM	integer	Calendar month
7	Day	DD	integer	Calendar day
8	Missing_Temperature	count	integer	Number of missing observations of Water temperature
9	Percent_Missing_Temperature	%	floating-point	Percent missing observations of Water temperature
10	Flagged_Temperature	count	integer	Number of QC/QA-flagged observations of Water temperature
11	Percent_Flagged_Temperature	%	floating-point	Percent QC/QA-flagged observations of Water temperature
12	Daily_Num_Temperature	count	integer	Daily Observations of Water temperature
13	Daily_Min_Temperature	°C	floating-point	Daily Minimum Water temperature
14	Daily_Max_Temperature	°C	floating-point	Daily Maximum Water temperature
15	Daily_Mean_Temperature	°C	floating-point	Daily Mean Water temperature
16	Daily_StdDev_Temperature	°C	floating-point	Daily Sample Standard Deviation of Water temperature
17	Daily_SE_Temperature	°C	floating-point	Daily Standard Error of Water temperature
18	Missing_Conductivity	count	integer	Number of missing observations of Conductivity
19	Percent_Missing_Conductivity	%	floating-point	Percent missing observations of Conductivity
20	Flagged_Conductivity	count	integer	Number of QC/QA-flagged observations of Conductivity
21	Percent_Flagged_Conductivity	%	floating-point	Percent QC/QA-flagged observations of Conductivity
22	Daily_Num_Conductivity	count	integer	Daily Observations of Conductivity
23	Daily_Min_Conductivity	S/m	floating-point	Daily Minimum Conductivity
24	Daily_Max_Conductivity	S/m	floating-point	Daily Maximum Conductivity
25	Daily_Mean_Conductivity	S/m	floating-point	Daily Mean Conductivity
26	Daily_StdDev_Conductivity	S/m	floating-point	Daily Sample Standard Deviation of Conductivity
27	Daily_SE_Conductivity	S/m	floating-point	Daily Standard Error of Conductivity
28	Missing_Pressure	count	integer	Number of missing observations of Water pressure at sensor (approximately equivalent to water depth within 3% error)
29	Percent_Missing_Pressure	%	floating-point	Percent missing observations of Water pressure at sensor (approximately equivalent to water depth within 3% error)
30	Flagged_Pressure	count	integer	Number of QC/QA-flagged observations of Water pressure at sensor (approximately equivalent to water depth within 3% error)
31	Percent_Flagged_Pressure	%	floating-point	Percent QC/QA-flagged observations of Water pressure at sensor (approximately equivalent to water depth within 3% error)
32	Daily_Num_Pressure	count	integer	Daily Observations of Water pressure at sensor (approximately equivalent to water depth within 3% error)
33	Daily_Min_Pressure	dbar	floating-point	Daily Minimum Water pressure at sensor (approximately equivalent to water depth within 3% error)
34	Daily_Max_Pressure	dbar	floating-point	Daily Maximum Water pressure at sensor (approximately equivalent to water depth within 3% error)
35	Daily_Mean_Pressure	dbar	floating-point	Daily Mean Water pressure at sensor (approximately equivalent to water depth within 3% error)
36	Daily_StdDev_Pressure	dbar	floating-point	Daily Sample Standard Deviation of Water pressure at sensor (approximately equivalent to water depth within 3% error)
37	Daily_SE_Pressure	dbar	floating-point	Daily Standard Error of Water pressure at sensor (approximately equivalent to water depth within 3% error)
38	Missing_Depth	count	integer	Number of missing observations of Water depth to the pressure sensor of the moored sonde
39	Percent_Missing_Depth	%	floating-point	Percent missing observations of Water depth to the pressure sensor of the moored sonde
40	Flagged_Depth	count	integer	Number of QC/QA-flagged observations of Water depth to the pressure sensor of the moored sonde
41	Percent_Flagged_Depth	%	floating-point	Percent QC/QA-flagged observations of Water depth to the pressure sensor of the moored sonde
42	Daily_Num_Depth	count	integer	Daily Observations of Water depth to the pressure sensor of the moored sonde
43	Daily_Min_Depth	m	floating-point	Daily Minimum Water depth to the pressure sensor of the moored sonde
44	Daily_Max_Depth	m	floating-point	Daily Maximum Water depth to the pressure sensor of the moored sonde
45	Daily_Mean_Depth	m	floating-point	Daily Mean Water depth to the pressure sensor of the moored sonde
46	Daily_StdDev_Depth	m	floating-point	Daily Sample Standard Deviation of Water depth to the pressure sensor of the moored sonde
47	Daily_SE_Depth	m	floating-point	Daily Standard Error of Water depth to the pressure sensor of the moored sonde
48	Missing_Salinity	count	integer	Number of missing observations of Salinity
49	Percent_Missing_Salinity	%	floating-point	Percent missing observations of Salinity
50	Flagged_Salinity	count	integer	Number of QC/QA-flagged observations of Salinity
51	Percent_Flagged_Salinity	%	floating-point	Percent QC/QA-flagged observations of Salinity
52	Daily_Num_Salinity	count	integer	Daily Observations of Salinity
53	Daily_Min_Salinity	PSU	floating-point	Daily Minimum Salinity
54	Daily_Max_Salinity	PSU	floating-point	Daily Maximum Salinity
55	Daily_Mean_Salinity	PSU	floating-point	Daily Mean Salinity
56	Daily_StdDev_Salinity	PSU	floating-point	Daily Sample Standard Deviation of Salinity
57	Daily_SE_Salinity	PSU	floating-point	Daily Standard Error of Salinity
58	Missing_Sigma_t	count	integer	Number of missing observations of Sigma-t (i.e. Density-1)
59	Percent_Missing_Sigma_t	%	floating-point	Percent missing observations of Sigma-t (i.e. Density-1)
60	Flagged_Sigma_t	count	integer	Number of QC/QA-flagged observations of Sigma-t (i.e. Density-1)
61	Percent_Flagged_Sigma_t	%	floating-point	Percent QC/QA-flagged observations of Sigma-t (i.e. Density-1)
62	Daily_Num_Sigma_t	count	integer	Daily Observations of Sigma-t (i.e. Density-1)
63	Daily_Min_Sigma_t	kg/m^3	floating-point	Daily Minimum Sigma-t (i.e. Density-1)
64	Daily_Max_Sigma_t	kg/m^3	floating-point	Daily Maximum Sigma-t (i.e. Density-1)
65	Daily_Mean_Sigma_t	kg/m^3	floating-point	Daily Mean Sigma-t (i.e. Density-1)
66	Daily_StdDev_Sigma_t	kg/m^3	floating-point	Daily Sample Standard Deviation of Sigma-t (i.e. Density-1)
67	Daily_SE_Sigma_t	kg/m^3	floating-point	Daily Standard Error of Sigma-t (i.e. Density-1)

Statistics:

Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS

Citation:

Blanton, Jackson O. 2003. Continuous salinity, temperature and depth measurements from moored hydrographic data loggers deployed at GCE2_Hydro (Four Mile Island, Georgia) from 26-Oct-2001 through 31-Dec-2001. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/ba38f81397c5472fe0f9650639a41d70

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