Identification_Information: Citation: Citation_Information: Originator: Rabalais, N. Publication_Date: 20020901 Title: Louisiana Coastal Hypoxia Shelfwide Survey, July 1990 Geospatial_Data_Presentation_Form: Database Description: Abstract: Hydrographic data were collected during a July 23 - 27, 1990 survey of the Louisiana continental shelf. Nutrient, pigment and station information data were also acquired. Purpose: The physical, biological and chemical data collected are part of a long-term coastal Louisiana dataset. The goal is to understand physical and biological processes that contribute to the causes of hypoxia and use the data to support environmental models for use by resource managers. Time_Period_of_Content: Time_Period_Information: Range_of_Dates/Times: Beginning_Date: 19900723 Beginning_Time: Unknown Ending_Date: 19900727 Ending_Time: Unknown Currentness_Reference: ground condition Status: Progress: Complete Maintenance_and_Update_Frequency: As needed Spatial_Domain: Description_of_Geographic_Extent: Louisiana coastal waters, Northwestern Gulf of Mexico. Bounding_Coordinates: West_Bounding_Coordinate: -93.45 East_Bounding_Coordinate: -89.45 North_Bounding_Coordinate: 29.65 South_Bounding_Coordinate: 28.25 Data_Set_G-Polygon: Data_Set_G-Polygon_Outer_G-Ring: G-Ring_Point: G-Ring_Latitude: 29.65 G-Ring_Longitude: -93.45 G-Ring_Point: G-Ring_Latitude: 28.25 G-Ring_Longitude: -89.45 G-Ring_Point: G-Ring_Latitude: 28.25 G-Ring_Longitude: -93.45 G-Ring_Point: G-Ring_Latitude: 29.65 G-Ring_Longitude: -89.45 G-Ring_Point: G-Ring_Latitude: 29.65 G-Ring_Longitude: -93.45 Keywords: Theme: Theme_Keyword_Thesaurus: GCMD NASA's Global Change Master Dir. THEME Theme_Keyword: EARTH SCIENCE > Biosphere > Ecological Dynamics > Biogeochemical Cycles Theme_Keyword: EARTH SCIENCE > Biosphere > Ecological Dynamics > Nutrient Cycling Theme_Keyword: EARTH SCIENCE > Biosphere > Ecological Dynamics > Oxygen Demand Theme_Keyword: EARTH SCIENCE > Biosphere > Ecological Dynamics > Primary Production Theme_Keyword: EARTH SCIENCE > Human Dimensions > Environmental Impacts > Eutrophication Theme_Keyword: EARTH SCIENCE > Hydrosphere > Water Quality Theme_Keyword: EARTH SCIENCE > Hydrosphere > Water Quality > Chlorophyll Theme_Keyword: EARTH SCIENCE > Hydrosphere > Water Quality > Conductivity Theme_Keyword: EARTH SCIENCE > Hydrosphere > Water Quality > Light Transmission Theme_Keyword: EARTH SCIENCE > Hydrosphere > Water Quality > Nitrogen Compounds Theme_Keyword: EARTH SCIENCE > Hydrosphere > Water Quality > Nutrients Theme_Keyword: EARTH SCIENCE > Hydrosphere > Water Quality > Oxygen Theme_Keyword: EARTH SCIENCE > Hydrosphere > Water Quality > Water Temperature Theme_Keyword: EARTH SCIENCE > Oceans > Coastal Processes Theme_Keyword: EARTH SCIENCE > Oceans > Marine Environment Monitoring Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Ammonia > Ammonium Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Biogeochemical Cycles Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Chlorophyll Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Nitrate Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Nitrite Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Nitrogen Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Nutrients Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Oxygen Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Phosphate Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Pigments Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Chemistry > Silicate Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Circulation > Fronts Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Optics > Secchi Depth Theme_Keyword: EARTH SCIENCE > Oceans > Ocean Temperature Theme_Keyword: EARTH SCIENCE > Oceans > Salinity/Density Theme_Keyword: EARTH SCIENCE > Oceans > Water Quality Place: Place_Keyword_Thesaurus: GCMD NASA's Global Change Master Dir. PLACE Place_Keyword: Gulf Of Mexico Place_Keyword: North Atlantic Ocean Place_Keyword: United States Of America Place_Keyword: North America Place_Keyword: Northern Hemisphere Place_Keyword: Sea Surface Access_Constraints: None Use_Constraints: 1. Dataset credit required. 2. Experience with similar datasets has shown that when data are plotted or used in further analysis, outlying values may occasionally be discovered. Please report any possible problems with the data to N. Rabalais. Point_of_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Nancy N. Rabalais Contact_Organization: Louisiana Universities Marine Consortium Contact_Address: Address_Type: mailing address Address: Louisiana Universities Marine Consortium 8124 Hwy 56 City: Chauvin State_or_Province: LA Postal_Code: 70344 Country: USA Contact_Voice_Telephone: 985 851 2800 Contact_Facsimile_Telephone: 985 851 2874 Contact_Electronic_Mail_Address: Unknown Data_Set_Credit: Rabalais, N.N., Turner, R.E. and Wiseman Jr, W.J. Funding: Funds for the research were provided by the National Oceanographic and Atmospheric Administration, Nutrient Enhanced Coastal Ocean Productivity (NECOP) program. Security_Information: Security_Classification_System: None Security_Classification: Unclassified Security_Handling_Description: None Native_Data_Set_Environment: Windows 2000, MSAccess 2000 Analytical_Tool: Analytical_Tool_Description: Autoanalyzer Tool_Access_Information: Tool_Access_Instructions: Unknown. Tool_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Tom Oswald Contact_Address: Address_Type: mailing address Address: 110 Coastal Studies Coastal Ecology Institute LSU City: Baton Rouge State_or_Province: LA Postal_Code: 70803 Contact_Voice_Telephone: 225 388-6700 Contact_Electronic_Mail_Address: Unknown Analytical_Tool: Analytical_Tool_Description: Fluorometer Tool_Access_Information: Tool_Access_Instructions: Contact Turner Designs. Tool_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Turner Designs Inc. Contact_Address: Address_Type: mailing address Address: 845 W. Maude Avenue City: Sunnyvale State_or_Province: CA Postal_Code: 94085 Country: US Contact_Voice_Telephone: 877 316-8049 Analytical_Tool: Analytical_Tool_Description: Transmissometer Tool_Access_Information: Tool_Access_Instructions: Sea Tech, Inc. was acquired by Wet Labs, Inc. as of June 1, 1998. Contact Wet Labs, Inc. Tool_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Wet Labs, Inc. Contact_Address: Address_Type: mailing and physical address Address: 620 Applegate St. City: Philomath State_or_Province: OR Postal_Code: 97370-0518 Country: US Contact_Voice_Telephone: 541 929-5650 Analytical_Tool: Analytical_Tool_Description: Beckman type dissolved oxygen sensor. Tool_Access_Information: Tool_Access_Instructions: Contact Sea-Bird Electronics, Inc. Tool_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Sea-Bird Electronics, Inc. Contact_Address: Address_Type: mailing and physical address Address: 1808 136th Place NE City: Bellevue State_or_Province: WA Postal_Code: 98005 Country: USA Contact_Voice_Telephone: 425 643-9866 Contact_Electronic_Mail_Address: seabird@seabird.com Analytical_Tool: Analytical_Tool_Description: Temperature sensor. Tool_Access_Information: Tool_Access_Instructions: Contact Sea-Bird Electronics, Inc. Tool_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Sea-Bird Electronics, Inc. Contact_Address: Address_Type: mailing and physical address Address: 1808 136th Place NE City: Bellevue State_or_Province: WA Postal_Code: 98005 Country: USA Contact_Voice_Telephone: 425 643-9866 Contact_Electronic_Mail_Address: seabird@seabird.com Analytical_Tool: Analytical_Tool_Description: Conductivity sensor. Tool_Access_Information: Tool_Access_Instructions: Contact Sea-Bird Electronics, Inc. Tool_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Sea-Bird Electronics, Inc. Contact_Address: Address_Type: mailing and physical address Address: 1808 136th Place NE City: Bellevue State_or_Province: WA Postal_Code: 98005 Country: USA Contact_Voice_Telephone: 425 643-9866 Contact_Electronic_Mail_Address: seabird@seabird.com Analytical_Tool: Analytical_Tool_Description: CTD Tool_Access_Information: Tool_Access_Instructions: Contact Sea-Bird Electronics, Inc. Tool_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Sea-Bird Electronics, Inc. Contact_Address: Address_Type: mailing and physical address Address: 1808 136th Place NE City: Bellevue State_or_Province: WA Postal_Code: 98005 Country: USA Contact_Voice_Telephone: 425 643-9866 Contact_Electronic_Mail_Address: seabird@seabird.com Analytical_Tool: Analytical_Tool_Description: Pressure sensor. Tool_Access_Information: Tool_Access_Instructions: Contact Sea-Bird Electronics, Inc. Tool_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Sea-Bird Electronics, Inc. Contact_Address: Address_Type: mailing and physical address Address: 1808 136th Place NE City: Bellevue State_or_Province: WA Postal_Code: 98005 Country: USA Contact_Voice_Telephone: 425 643-9866 Contact_Electronic_Mail_Address: seabird@seabird.com Analytical_Tool: Analytical_Tool_Description: Fluorometer Tool_Access_Information: Tool_Access_Instructions: Sea Tech, Inc. was acquired by Wet Labs, Inc. as of June 1, 1998. Contact Wet Labs, Inc. Tool_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Wet Labs, Inc. Contact_Address: Address_Type: mailing and physical address Address: 620 Applegate St. City: Philomath State_or_Province: OR Postal_Code: 97370-0518 Country: US Contact_Voice_Telephone: 541 929-5650 Analytical_Tool: Analytical_Tool_Description: Fathometer Tool_Access_Information: Tool_Access_Instructions: Japan Radio Co. Ltd. Tool_Contact: Contact_Information: Contact_Organization_Primary: Contact_Organization: Japan Radio Co. Ltd. Contact_Address: Address_Type: mailing address Address: Akasaka Twin Tower (Main), 17-22, Akasaka 2-chome, Minato-ku, City: TOKYO State_or_Province: Unknown Postal_Code: Unknown Country: JAPAN Contact_Voice_Telephone: 81-3-3584-8836 Data_Quality_Information: Attribute_Accuracy: Attribute_Accuracy_Report: S790Hydro: Temperature, dissolved oxygen, percent oxygen saturation, conductivity, salinity, density, percent light transmission, fluorescence and depth were acquired with a SeaBird 911 CTD system which was used to obtain water column profiles at all stations. Oxygen concentration determinations, upper and lower end, were made prior to the cruise by the LUMCON CTD technician and entered into the SeaSoft configuration file. A correction was made on the CTD oxygen data based on a regression equation developed from Winkler titrations on board ship. Winkler titrations were conducted under the supervision of Nancy Rabalais. The data for the shelfwide summer 1990 hypoxia cruise were corrected according to a regression equation developed from Winkler titrations. Oxygen data were omitted from the top of cast if concentrations indicated that the CTD oxygen probe was not equilibrated due to inadequate "soak" time or too fast a lowering speed. Oxygen data from an entire CTD cast were omitted from the data set, if there were indications that the oxygen probe never equilibrated. There are numerous oxygen data gaps in the shelfwide 1990 cruise data set. Improper equilibration of the oxygen probe, raising and lowering of the CTD unit in the upper water column prior to the beginning of a cast, and too fast a lowering speed for the CTD unit resulted in a severely reduced oxygen data set. Rather than submit suspect data to the NECOP master database, the principal investigator eliminated those values prior to submission. Oxygen data are missing at some or all depths at the stations listed below: A2, A3, A4, A5, A6, A7, A'1, A'2, A'3, A1, B1, B2, B4, B6, B8, B9, C10, C3, C5, C6A, C7, C8A, C9A, D1, D2, D4, D5, D6, D7, E1, E2, E2A, E3, E4, E5, E6, F2, F3, F4, F5, G5, G2, G3, G4, H3, I1, I2, I3, I4, I5, I6, I7, J5, K3, K4, K5, H4, J3 and K2. Fluorometer voltage values were in excess of 10.00 at one or more depths at the stations listed : A4, A'4, A'5, E1 and G2. S790Nutrient: Nutrient analyses are conducted by Tom Oswald under the supervision of R. E. Turner. S790Pigment: The Turner Designs model 10 fluorometer was calibrated for chlorophyll a against a chemical supply house chlorophyll a standard measured on a spectrophotometer yearly (or more frequently if needed). During the cruise, the Fluorometer was blanked and calibrated daily in accordance with Turner Designs recommended procedures. Chlorophyll concentrations were supervised and quality controlled by Nancy Rabalais. N. Rabalais performed an additional procedure in quality-control/quality-assurance by evaluating relationships between the data in S790Hydro, S790Nutrient, S790Pigment and S790Stns. Logical_Consistency_Report: Unknown. Completeness_Report: Unknown. Positional_Accuracy: Horizontal_Positional_Accuracy: Horizontal_Positional_Accuracy_Report: Station positions were logged from RV Pelican's NorthStar LORAN C at the beginning of sampling operations. Manufacturer's accuracy claim is 30 meters 90% of the time. Wind, currents and tidal forces may have moved the ships from the beginning positions. Lineage: Methodology: Methodology_Type: Field Pigment Methodology_Description: Water for chlorophyll analyses was collected from surface by bucket and bottom waters in 5 liter Niskin bottles. Water for chlorophyll analysis (50 - 100 ml) is filtered on board ship through GF/F (0.7 micron) filters, which are then fixed in 5 ml of DMSO/90% acetone (40/60) solution, allowed to extract for at least one hour in the dark, then measured pre- and post-acidification on a Turner Model 10 fluorometer. Methodology: Methodology_Type: Field Station Locations Methodology_Description: Stations were occupied along 12 generally North-South transects across the Louisiana coastal shelf. Station depths ranged from 5 to 65 meters. The objective was to delimit and describe the area of midsummer bottom dissolved oxygen less than 2(mg/L). Biological, chemical and physical properties of the water are measured. Northern end stations of transects were chosen based on the survey vessel's minimum depth limits for each longitude. Optimally, one or two stations South of the Southern most station with bottom dissolved oxygen less than 2 (mg/L). Due to constraints of time and funding it was not possible to sample the southern limits of low oxygen for all transects. As it was necessary to remove bad and questionable data from western stations, whether the western limit of the hypoxic water mass was reached is unknown. Methodology: Methodology_Type: Field Nutrient Methodology_Description: Water for nutrient analyses was collected from surface by bucket and bottom waters in 5-liter Niskin bottles. Care was taken that the collector's hands were clean and avoided touching the water. Three replicate sample vials and caps were triple rinsed with sample before vial filling and closing. Samples were not filtered. The sample vials were frozen for later analysis in the laboratory. Methodology: Methodology_Type: Field Niskin Methodology_Description: The CTD unit was mounted on a rosette sampler fitted with 12 5-liter Niskin bottles for recovering water samples at discrete depths. Methodology: Methodology_Type: Lab Nutrients Methodology_Description: Samples for nutrients were frozen on board ship for later analysis in the laboratory. Nitrogen and phosphorus were analyzed according to methods described in EPA publication EPA 600/4-79-020 (1979), method 350.1 for ammonia-N, method 353.2 for nitrate/nitrite-N, and method 365.1 for phosphate-P. Silicate was analyzed according to Technicon Industrial method 186-72 W/B (1977). Process_Step: Process_Description: Unknown. Process_Date: Unknown Cloud_Cover: Unknown Spatial_Data_Organization_Information: Direct_Spatial_Reference_Method: Point Point_and_Vector_Object_Information: SDTS_Terms_Description: SDTS_Point_and_Vector_Object_Type: Point Point_and_Vector_Object_Count: 63 Spatial_Reference_Information: Horizontal_Coordinate_System_Definition: Geographic: Latitude_Resolution: 0.0001 Longitude_Resolution: 0.0001 Geographic_Coordinate_Units: Degrees and decimal minutes Geodetic_Model: Horizontal_Datum_Name: WGS84 Ellipsoid_Name: WGS84 Semi-major_Axis: 6378137 Denominator_of_Flattening_Ratio: 298.257223563 Entity_and_Attribute_Information: Detailed_Description: Entity_Type: Entity_Type_Label: S790Hydro Entity_Type_Definition: The table lists SeaBird CTD station conductivity, density sigma-t, fluorometer voltage, dissolved oxygen, percent oxygen saturation, salinity, percent light transmission and temperature values at depths. There are 1716 records. Entity_Type_Definition_Source: None. Attribute: Attribute_Label: Cond Attribute_Definition: Conductivity Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 2.24585 Range_Domain_Maximum: 5.82435 Attribute_Units_of_Measure: S/m Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Density Attribute_Definition: Density sigma-t Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 4.46 Range_Domain_Maximum: 25.4152 Attribute_Units_of_Measure: Density sigma-t Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Depth Attribute_Definition: Depth of SeaBird pressure sensor Attribute_Definition_Source: Producer Defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.32 Range_Domain_Maximum: 65.002 Attribute_Units_of_Measure: Meters Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Fluor Attribute_Definition: Fluorometer voltage Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: Character field, generally numeric equivalent of text value except in 15 cases where ">10.0" indicates fluorometer was maximized. Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: O2 Attribute_Definition: Dissolved oxygen Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.208988 Range_Domain_Maximum: 13.243502 Attribute_Units_of_Measure: mg/L Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: PctO2Sat Attribute_Definition: Oxygen percent saturation Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 3 Range_Domain_Maximum: 192.2 Attribute_Units_of_Measure: Percent Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: PctXmiss Attribute_Definition: Percent light transmission Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 7.8 Range_Domain_Maximum: 95 Attribute_Units_of_Measure: Percent Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Sal Attribute_Definition: Salinity Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 12.049 Range_Domain_Maximum: 37.5035 Attribute_Units_of_Measure: ppt Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Sta Attribute_Definition: Station name of location sampled Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: Character field Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: StnID Attribute_Definition: Station identification number Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 865 Range_Domain_Maximum: 927 Attribute_Units_of_Measure: Integer Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Temp Attribute_Definition: Temperature Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 21.567 Range_Domain_Maximum: 31.8352 Attribute_Units_of_Measure: Degrees centigrade Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Detailed_Description: Entity_Type: Entity_Type_Label: S790Nutrient Entity_Type_Definition: The table lists station NH4, NO2, NO2+NO3, NO3, PO4 and SiO3 values at depths. There are 129 records. Entity_Type_Definition_Source: None. Attribute: Attribute_Label: Depth Attribute_Definition: Depth of SeaBird p sensor, 0.0 = bucket surface sample. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.0 Range_Domain_Maximum: 63.7 Attribute_Units_of_Measure: Meters Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: NH4 Attribute_Definition: Ammonium Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.8 Range_Domain_Maximum: 40.7 Attribute_Units_of_Measure: µg-at/L Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: NO2 Attribute_Definition: Nitrite Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.3 Range_Domain_Maximum: 80.8 Attribute_Units_of_Measure: µg-at/L Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: NO2+NO3 Attribute_Definition: Nitrite+Nitrate Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.6 Range_Domain_Maximum: 81.6 Attribute_Units_of_Measure: µg-at/L Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: NO3 Attribute_Definition: Nitrate Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.1 Range_Domain_Maximum: 75 Attribute_Units_of_Measure: µg-at/L Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: PO4 Attribute_Definition: Phosphate Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.2 Range_Domain_Maximum: 5.7 Attribute_Units_of_Measure: µg-at/L Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: SiO3 Attribute_Definition: Silicate Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.3 Range_Domain_Maximum: 91.5 Attribute_Units_of_Measure: µg-at/L Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Sta Attribute_Definition: Station name of location sampled Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: Character field Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: StnID Attribute_Definition: Station identification number Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 865 Range_Domain_Maximum: 927 Attribute_Units_of_Measure: Integer Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Detailed_Description: Entity_Type: Entity_Type_Label: S790Pigment Entity_Type_Definition: The table lists station mean chlorophyll a, Fo/Fa ratio, mean phaeopigment and total pigment values at depths. There are 128 records. Entity_Type_Definition_Source: None. Attribute: Attribute_Label: Depth Attribute_Definition: Depth of SeaBird p sensor, 0.0 = bucket surface sample. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 63.7 Attribute_Units_of_Measure: Meters Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: MeanC Attribute_Definition: Mean Chlorophyll a Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0 Range_Domain_Maximum: 153.74 Attribute_Units_of_Measure: µg/L Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: MeanF Attribute_Definition: Mean Fo/Fa ratio Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.59 Range_Domain_Maximum: 2 Attribute_Units_of_Measure: FoFa ratio Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: MeanP Attribute_Definition: Mean Phaeopigments Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.06 Range_Domain_Maximum: 61.49 Attribute_Units_of_Measure: µg/L Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Sta Attribute_Definition: Station name of location sampled Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Unrepresentable_Domain: Character field Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: StnID Attribute_Definition: Station identification number Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 865 Range_Domain_Maximum: 927 Attribute_Units_of_Measure: Integer Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Total Attribute_Definition: Total pigments Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.42 Range_Domain_Maximum: 209.72 Attribute_Units_of_Measure: µg/L Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Detailed_Description: Entity_Type: Entity_Type_Label: S790Stns Entity_Type_Definition: The table lists station, date, fathometer, latitude, longitude, Secchi disk, time of SeaBird cast and station ID. There are 63 records. Entity_Type_Definition_Source: None. Attribute: Attribute_Label: Date Attribute_Definition: Date station was sampled. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 19900723 Range_Domain_Maximum: 19900727 Attribute_Units_of_Measure: YYYYMMDD Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Fath Attribute_Definition: Estimated total depth of station from ship's fathometer, with addition of constant hull depth. Attribute_Definition_Source: Producer defined Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 5 Range_Domain_Maximum: 65 Attribute_Units_of_Measure: meters Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Latitude Attribute_Definition: Latitude of sampling station. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 28.2665 Range_Domain_Maximum: 29.6422 Attribute_Units_of_Measure: Decimal degrees Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: -9999 Attribute_Value_Accuracy_Explanation: Latitude value was recorded from the ship's LORAN C at the beginning of sampling operations. Manufacturer's accuracy claim is 30 meters 90% of the time. Wind, currents and tidal forces may move the ship from the beginning position. Survey vessel was not anchored during sampling. Position at end of sample operations may have changed from beginning operations location. Vessel drift was generally less than 0.3 nm. An Accuracy value of -9999 was entered because accuracy could not be determined. Attribute: Attribute_Label: Longitude Attribute_Definition: Longitude of sampling station. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: -93.4172 Range_Domain_Maximum: -89.4752 Attribute_Units_of_Measure: Decimal degrees Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute_Value_Accuracy_Information: Attribute_Value_Accuracy: -9999 Attribute_Value_Accuracy_Explanation: Longititude value was recorded from the ship's LORAN C at the beginning of sampling operations. Manufacturer's accuracy claim is 30 meters 90% of the time. Wind, currents and tidal forces may move the ship from the beginning position. Survey vessel was not anchored during sampling. Position at end of sample operations may have changed from beginning operations location. Vessel drift was generally less than 0.3 nm. An Accuracy value of -9999 was entered because accuracy could not be determined. Attribute: Attribute_Label: Secchi Attribute_Definition: Secchi disk depth. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0.7 Range_Domain_Maximum: 20 Attribute_Units_of_Measure: meters Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Sta Attribute_Definition: Station name of location sampled. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Unrepresentable_Domain: Character field Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: StnID Attribute_Definition: Station identification number. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 865 Range_Domain_Maximum: 927 Attribute_Units_of_Measure: Integer Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Attribute: Attribute_Label: Time Attribute_Definition: Time of beginning of SeaBird CTD cast. Attribute_Definition_Source: Producer defined. Attribute_Domain_Values: Range_Domain: Range_Domain_Minimum: 0:17:00 Range_Domain_Maximum: 23:43:00 Attribute_Units_of_Measure: HH:mm:ss Beginning_Date_of_Attribute_Values: 19900723 Ending_Date_of_Attribute_Values: 19900727 Overview_Description: Entity_and_Attribute_Overview: The related data tables S790Hydro, S790Nutrient, S790Pigment, and S790Stns contain spatial, temporal, physical and biological water quality data acquired during the July 1990 cruise. Each table contains a StnID field that can be used to key joins with the other tables. Entity_and_Attribute_Detail_Citation: For detailed attribute information contact Nancy Rabalais. Distribution_Information: Distributor: Contact_Information: Contact_Person_Primary: Contact_Person: Nancy N. Rabalais Contact_Organization: Louisiana Universities Marine Consortium Contact_Address: Address_Type: mailing address Address: Louisiana Universities Marine Consortium 8124 Hwy 56 City: Chauvin State_or_Province: LA Postal_Code: 70344 Country: USA Contact_Voice_Telephone: 985 851 2800 Contact_Facsimile_Telephone: 985 851 2874 Contact_Electronic_Mail_Address: Unknown Distribution_Liability: I, the data requestor, agree to credit the data originators in any publications, reports or presentations generated from this data. I also accept that although these data have been processed successfully on a computer system at the Louisiana Universities Marine Consortium, no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. I recognize that these data are best acquired from the originator and not from a secondary source. I recognize that careful attention must be paid to the contents of the metadata file associated with these data. I will not hold Louisiana Universities Marine Consortium liable for improper or incorrect use of the data described and/or contained herein. This disclaimer applies both to individual use of the data and aggregate use with other data. Standard_Order_Process: Digital_Form: Digital_Transfer_Information: Format_Name: MDB Format_Version_Number: 9 File_Decompression_Technique: File compression not used. Transfer_Size: 0.412 Digital_Transfer_Option: Offline_Option: Offline_Media: 3-1/2 inch floppy disk Recording_Format: DOS Copy Digital_Transfer_Option: Online_Option: Computer_Contact_Information: Network_Address: Network_Resource_Name: S790.mdb Access_Instructions: Contact Distributor. Fees: None Ordering_Instructions: Call, email or write the Distributor with requests for data sets. Standard_Order_Process: Fees: None. Custom_Order_Process: Contact distributor Metadata_Reference_Information: Metadata_Date: 20020514 Metadata_Review_Date: 20020628 Metadata_Future_Review_Date: 20120615 Metadata_Contact: Contact_Information: Contact_Person_Primary: Contact_Person: Ben Cole Contact_Organization: Louisiana Universities Marine Consortium Contact_Address: Address_Type: mailing address Address: LUMCON 8124 Hwy 24 City: Chauvin State_or_Province: LA Postal_Code: 70344 Country: USA Contact_Voice_Telephone: 985 851 2800 Contact_Facsimile_Telephone: 985 851 2874 Contact_Electronic_Mail_Address: Unknown Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata Metadata_Standard_Version: FGDC-STD-001-1998 Metadata_Time_Convention: local time