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GCE-LTER Data Set Summary
Accession:
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PHY-GCEM-0404b1
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Research Theme:
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Physical Oceanography (Monitoring)
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Contributors:
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Daniela Di Iorio, KiRyong Kang
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Title:
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March 2004 bin-averaged CTD profiles for the Georgia Coastal Ecosystems Intracoastal Waterway transect
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Abstract:
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Two hydrographic surveys were performed from March 13 to March 14, 2004, along the Intracoastal Waterway between the Altamaha River south of Wolf Island and Sapelo Sound (Intracoastal Waterway Transect, GCE-IC). Vertical CTD profiles were collected at various intervals from -15km to 32km along the transect during flood and ebb tidal regimes. 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.
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DOI:
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10.6073/pasta/bde3c22d65ca281f681966138b29542c
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Key Words:
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conductivity, Cruise CTD Profiling, density, depth, estuaries, hydrography, pressure, salinity, temperature, water column
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LTER Core Area:
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Inorganic Matter
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Research Themes:
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GCE2 Q2 - Domain Patterns, GCE3 Area2 - Patterns within the Domain, Physical Oceanography, Hydrography/Hydrology |
Study Period:
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13-Mar-2004 to 14-Mar-2004
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Study Sites:
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GCE-IC -- Intracoastal Waterway, Georgia, USA
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Data References:
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PHY-GCEM-0404b2 (Bin-averaged, interpolated physical parameters)
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Project References:
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Salinity variations across the GCE domain |
Downloads:
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Data Table: PHY-GCEM-0404b1 (Main data table for data set PHY-GCEM-0404b1, 115 records)
Access: Public (released 02-Apr-2005)
Metadata: Text (ESA FLED),
XML (Ecological Metadata Language)
Data Formats: Spreadsheet (CSV) [19.98kb], Text File [17.82kb], MATLAB (GCE Toolbox) [218.33kb], MATLAB (Variables) [194.12kb], Text Report [51.43kb]
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 |
Tide |
none |
string |
Nominal tide stage based on predicted tidal harmonics and shipboard observation |
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 |
Depth |
m |
floating-point |
Bin-averaged and interpolated water depth at pressure sensor |
19 |
Temperature |
°C |
floating-point |
Water temperature, bin-averaged and interpolated based on Depth values |
20 |
Conductivity |
S/m |
floating-point |
Conductivity, bin-averaged and interpolated based on Depth values |
21 |
Salinity |
PSU |
floating-point |
Salinity, bin-averaged and interpolated based on Depth values |
22 |
Density |
kg/m^3 |
floating-point |
Water density, bin-averaged and interpolated based on Depth values |
23 |
Sigma_t |
kg/m^3 |
floating-point |
Sigma-t (i.e. (Water Density-1)*1000), bin-averaged and interpolated based on Depth values |
24 |
OBS |
none |
floating-point |
Optical back-scatter, bin-averaged and interpolated based on Depth values |
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Statistics:
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Generate script code to retrieve data tables for analysis in: MATLAB, R, SAS, SPSS |
Citation:
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Di Iorio, Daniela. 2004. March 2004 bin-averaged CTD profiles for the Georgia Coastal Ecosystems Intracoastal Waterway transect. Georgia Coastal Ecosystems LTER Project, University of Georgia, Long Term Ecological Research Network. http://dx.doi.org/10.6073/pasta/bde3c22d65ca281f681966138b29542c
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