﻿Identification_Information:
  Citation:
    Citation_Information:
      Originator: Rabalais, N.
      Publication_Date: Unknown
      Title: Louisiana Hypoxia Surveys 2004
      Geospatial_Data_Presentation_Form: Database
  Description:
    Abstract:
      Two sets of CTD data were taken during the 2004 surveys of the
      Louisiana continental shelf. Hydrographic data were obtained with
      the LUMCON SeaBird 911+ CTD system and a Hydrolab Surveyor 3.
      Nutrient, pigment, suspended sediment, surface salinity 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: 20040113
        Beginning_Time: Unknown
        Ending_Date: 20041213
        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: -94.1
      East_Bounding_Coordinate: -89.5
      North_Bounding_Coordinate: 29.8
      South_Bounding_Coordinate: 28.5
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus:
        NASA's Global Change Master Directory. GCMD's Science Keywords
        and Associated Directory Keywords
        (http://gcmd.gsfc.nasa.gov/Resources/valids/index.html)
      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  > pH
      Theme_Keyword: EARTH SCIENCE > Hydrosphere  > Water Quality  > Suspended Solids
      Theme_Keyword: EARTH SCIENCE > Hydrosphere  > Water Quality  > Water Temperature
      Theme_Keyword: EARTH SCIENCE > Oceans  > Coastal Processes
      Theme_Keyword:
        EARTH SCIENCE > Biosphere  > Ecological Dynamics  >
        Biogeochemical Cycles
      Theme_Keyword: EARTH SCIENCE > Oceans  > Marine Environment Monitoring
      Theme_Keyword: EARTH SCIENCE > Oceans  > Ocean Chemistry  > 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  > pH
      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
    Place:
      Place_Keyword_Thesaurus:
        NASA's Global Change Master Directory. GCMD's Science Keywords
        and Associated Directory Keywords
        (http://gcmd.gsfc.nasa.gov/Resources/valids/index.html)
      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: nrabalais@lumcon.edu
  Data_Set_Credit:
    Data_Set_Credit  Rabalais, N.N., Turner, R.E. and collegues
    Funding: Funds for the research were provided by the National Oceanic
    and Atmospheric Administration, Coastal Ocean Program, Grant Nos.
    NA03NOS4780037 to Louisiana Universities Marine Consortium, and 
    NA03NOS4780038 to Louisiana State University.

  Security_Information:
    Security_Classification_System: None
    Security_Classification: Unclassified
    Security_Handling_Description: None
  Native_Data_Set_Environment: Windows XP, MSAccess 2000
Data_Quality_Information:
  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      H04Hydrolab: The Hydrolab Surveyor 3 Conductivity, pH and Oxygen
      sensors were serviced and calibrated before deployment and
      maintained in accordance with Hydrolab (http://www.hydrolab.com/)
      recommended procedures. The Sonde and Logger are returned to the
      factory at least annually for inspection and service.

      Shipboard Winkler titrations during the July shelfwide cruise were
      used to develop a regression against Hydrolab data in case it was
      necessary to correct the data. Hydrolab oxygen data were corrected
      using an equation based on the results of the regression.

      H04Nutrients: Nutrient analyses were conducted using a QuikChem 8000
      FIA+(http://www.lachatinstruments.com). Tom Oswald performed the
      analyses under the supervision of R. E. Turner.

      H04Pigments: The Turner Designs model 10 AU fluorometer was
      calibrated for chlorophyll a against a chemical supply house
      chlorophyll a standard measured on a spectrophotometer. Each time
      the fluorometer was moved, it was tested with a Turner 10-AU solid
      standard. During cruises, the fluorometer was blanked and calibrated
      daily in accordance with Turner Designs recommended procedures.
      Pigment measurements were supervised by Adam Sapp or Nancy Rabalais
      and quality controlled by Nancy Rabalais.

      H04PortaSal: Salinity samples were analyzed in the lab by Guildline
      Instruments PortaSal, using Guildline methods
      (http://www.guildline.ca/). Salinity analyses were conducted by Jim
      Lee under the supervision of R. E. Turner.

      H04Refract: The refractometer was checked with distilled water
      before each cruise and re-zeroed when necessary.

      H04SeaBird: Sea-Bird SBE 13-01 dissolved oxygen sensors, the
      Paroscientific Digiquartz(r) pressure sensor, the SBE 3-01/F
      temperature sensors, SBE 5-01 pumps, and the SBE 4-01/0 Conductivity
      sensors were factory tested and calibrated at Sea-Bird
      (http://www.seabird.com/) recommended intervals and maintained and
      serviced by RV Pelican Electronic Technical support staff in
      accordance with Sea-Bird procedures. The Sea Tech 500m Fluorometer
      was factory tested and calibrated at Sea Tech recommended intervals
      and maintained and serviced by RV Pelican Electronic Technical
      support staff in accordance with Sea Tech procedures. Note: WET Labs
      acquired SEA Tech June 1, 1998, (http://www.wetlabs.com/). The Wet
      Labs C Star 10 cm path transmissometer was maintained by RV Pelican
      Electronic Technical support staff in accordance with Wet Labs
      recommendations.

      At the beginning of the monthly cruise, oxygen sensors were
      calibrated using the procedures described in SeaBird APPLICATION
      NOTE NO. 13-1, Rev. D. The Winkler Titration (OXFITW) oxygen value
      was determined chemically from replicate samples processed using a
      Mettler DL21 Titrator (http://www.mt.com/).

      Shipboard Winkler titrations during the July shelfwide cruise were
      used to develop a regression against SeaBird data in case it was
      necessary to correct the data. SeaBird oxygen data were corrected
      using an equation based on the results of the regression.

      During monthly surveys conducted in other months, shipboard Winkler
      titrations for regressions were not made due to logistical
      constraints. Fewer stations were sampled and water columns were
      often well mixed, making the considerable effort involved in
      titrating an inefficient allocation of resources, often without a
      suitable range of data to develop a strong regression.

      Winkler titrations were conducted under the supervision of Nancy
      Rabalais. Data reductions from the SeaBird were generated by Adam
      Sapp and quality controlled by Nancy Rabalais.

      H04SPM: Suspended sediment concentrations were supervised by Adam
      Sapp or Nancy Rabalais and quality controlled by Nancy Rabalais.

      H04Stn: Monthly survey (excluding September) SeaBird times and
      locations of operations were logged from RV Pelican's Multiple
      Instrument Data Acquisition System (MIDAS) which was maintained by
      the ship's electronic staff. Navigational data were acquired from a
      Starlink (http://www.starlinkdgps.com/) differential GPS or a
      Trimble (http://www.trimble.com/)GPS with a Micronet Receiver
      Station with sub 5-meter accuracy. Station depths were logged from
      the ship's Odom Echotrac II (http://www.odomhydrographic.com/)
      fathometer.

      September monthly survey station times, locations and
      depths were logged from RV Acadiana's Garmin GPSMAP 168 Sounder
      (http://www.garmin.com/).

      In addition to the monthly surveys, Hydrolab casts were made on a
      few dates from a small boat. See
      Horizontal_Positional_Accuracy_Report for details.

      Secchi disk depths were measured by hand using standard protocol.

      N. Rabalais performed an additional procedure in
      quality-control/quality-assurance by evaluating relationships
      between the data in H04Hydrolab, H04Nutrients, H04Pigments,
      H04PortaSal, H04Refract, H04SeaBird, H04SPM and H04Stn.
  Logical_Consistency_Report:
    H04Hydrolab: oxygen sensor maximized at the following stations and
    depths: Station C6C 0.6m, 1.0m, 1.9m had DO mg/L values of 99999 and
    DOPctSat values of 99999 20040505 station C6B 0.3m, 1.0m had DO
    mg/L values of 99999 and DOPctSat values of 99999 20040505 station A'3
    0.7m, 0.8m, and 1.1m had DO mg/L values of 99999 and DOPctSat values of 99999
    20040721 station A'4 0.3m and 1.6m  had DO mg/L values
    of 99999 and DOPctSat values of 99999.

    The values reported for Dissolved Oxygen: 99999 and Percent Oxygen
    Saturation: 99999 indicate dissolved oxygen concentrations were equal to
    or higher than 15.0 mg/L and oxygen saturation was equal to or greater
    than 200.0 percent.

  Completeness_Report:
   All Hydrolab pH data did not meet quality control criteria and were not included.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        Monthly (excluding September) survey cruise station positions
        were logged from RV Pelican's differential GPS at the beginning
        of sampling operations. GPS manufacturer's accuracy claim is 1-5
        meters 95% of the time. Wind, currents and tidal forces may have
        moved the ship from the beginning position.

        Station positions acquired during September on RV
        Acadiana were logged from the ship's Garmin Garmin GPSMAP 168
        Sounder with Garmin GBR 21 DGPS. The manufacturer describes the
        accuracy to be between 1 - 5 meters 95% of the time. Wind,
        currents and tidal forces may have moved the ship from the
        beginning position.

        In addition to the monthly surveys, Hydrolab casts were made at
        stations C6B and C6C on a few dates from a small boat using a
        Garmin 12XL Personal Navigator. The manufacturer describes the
        unit as being accurate within 15 meters 95% of the time.

  Lineage:
    Process_Step:
      Process_Description: Unknown.
      Process_Date: Unknown
    Methodology:
      Methodology_Type: Field Hydrolab monthly C and F transect surveys
      Methodology_Description:
        Deployment: The Hydrolab CTD was attached by chain to a lead
        weight. The weight was lowered to the bottom by hydrowire. With
        the weight on the bottom, the Hydrolab sonde was positioned just
        above the bottom. When the oxygen sensor stabilized, a data
        record of all the sensor values was stored electronically. The
        sonde was raised in approximately 1.0-meter increments, after
        D.O. sensor stabilization, data records were stored. When the
        Hydrolab reached a depth of two to three meters from the
        surface, The sonde was raised, and records stored, in
        approximately 0.5-meter increments until finally a record was
        stored with the sonde submerged but as close as possible to the
        surface.
    Methodology:
      Methodology_Type: Field Hydrolab July shelfwide survey
      Methodology_Description:
        Deployment: Due to limitations of time, mid-water depths were
        generally not sampled with the Hydrolab CTD during the shelfwide
        cruise.

        The Hydrolab CTD was attached by chain to a lead weight. The
        weight was lowered to the bottom by hydrowire. With the weight
        on the bottom, the Hydrolab sonde was positioned just above the
        bottom. When the oxygen sensor stabilized, a data record of all
        the sensor values was stored electronically. The sonde was
        raised in approximately 0.5-meter increments, after D.O. sensor
        stabilization, data records were stored. After storing data for
        the few meters closest to the bottom, the sonde was raised to
        two to three meters from the surface and a data record was
        saved. The sonde was raised, and records stored, in
        approximately 0.5-meter increments until finally a record was
        stored with the sonde submerged but as close as possible to the
        surface.
    Methodology:
      Methodology_Type: Field Nutrient
      Methodology_Description:
        Care was taken that the collector's hands were clean and avoided
        touching the sample water. Gloves were worn when two 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 Pigment
      Methodology_Description:
        Water for chlorophyll analysis (30 - 100 ml) was filtered on
        board ship through GF/F (0.7 micron) filters, which were then
        fixed in 5 ml of DMSO/90% acetone (40/60) solution, allowed to
        extract for at least two hours in the dark, then measured pre-
        and post-acidification on a Turner Model 10 AU fluorometer.
    Methodology:
      Methodology_Type: Field PortaSal
      Methodology_Description:
        Water was collected in an acid-washed, triple-rinsed 500ml
        Nalgene jar from a twice-rinsed bucket of surface water. The jar
        lid was secured tightly to minimize evaporation.
    Methodology:
      Methodology_Type: Field SeaBird
      Methodology_Description:
        The SeaBird CTD number of scans to average in the deck unit was
        set to one. At the beginning of each hydrocast the entire
        CTD/Rosette package was soaked while submerged 0.5m to 1.0m
        below the surface until pump flow and oxygen values observed via
        the Sea-Bird deck unit indicated the system was operating
        correctly.

        In order to minimize the effect of delays in oxygen sensor
        response time caused by temperature, sensor condition and
        plumbing configuration, the CTD package was lowered as close to
        dead slow as possible. The sensor packages were located below
        the Niskin bottles and rosette.

        At stations where the watch chief deemed the structure of the
        oxygen profile contained features useful in post-processing the
        oxygen data (AlignCTD), the CTD package was raised at the same
        speed it was lowered. At all other stations, the upcast was
        rapid in order to save time.
    Methodology:
      Methodology_Type: Field SPM
      Methodology_Description:
        Water (approximately 300 to 1000 ml) collected for suspended
        sediment samples was filtered on board ship through
        (pre-combusted, pre-weighed) GF/F filters and rinsed with
        distilled water. The filters were placed in Petri dishes and
        frozen for later analysis.
    Methodology:
      Methodology_Type: Field Station Locations
      Methodology_Description:
        C transect lies South and East of Terrebonne Bay. Nine
        cross-shelf stations on C transect were sampled monthly.
        Additional water-column hydrology measurements were made at
        stations C6B and CST52 when other research missions provided
        opportunities at those locations. Seven stations on transect F,
        South of the Atchafalya River were sampled in February, April,
        June, September and November.

        During the July shelfwide cruise, stations were occupied along
        16 generally North-South transects across the Louisiana and
        Texas coastal shelves. Station depths ranged from 3.56 to 47.7
        meters. The objective was to delimit and describe the area of
        midsummer bottom dissolved oxygen less than 2 (mg/L). Northern
        end stations of transects were chosen based on the survey
        vessel's minimum depth limits for each longitude. The Northern
        extent of hypoxia was not reached on transects A', A, B, C, D, E, F,
        G, H, I, and J.  The limit of hypoxia was not reached at two of 
	four stations on the Eastern end of the survey.
    Methodology:
      Methodology_Type: Field water samples
      Methodology_Description:
        Water for chlorophyll, nutrient, salinity and suspended sediment
        analyses was collected from the surface by twice-rinsed bucket,
        from mid-water in 5-l Niskin bottles on the SeaBird CTD/rosette
        system or a messenger triggered 5-l Niskin on the Hydrolab
        hydrowire. Bottom samples were collected in a 5-l bottom
        tripping Niskin deployed on the Hydrolab hydrowire. 

        Depth values of "0" indicate a bucket sample collected from the
        surface of the water.  Generally, deepest depths of water
        samples were from the bottom-tripping Niskin and correspond to
        the deepest depth recorded from the Hydrolab. 

        The SeaBird pressure sensor was located approximately 0.75
        meters below the mid-point of the 5-l Niskin.

        Midwater samples at stations on C transect were collected using
        Niskin bottles on the SeaBird rosette in all months excluding 
        September and by messenger fired Niskin on the Hydrolab hydrowire
        in September.
    Methodology:
      Methodology_Type: Lab Nutrient
      Methodology_Description:
        Ammonium samples were analyzed according to Lachat Instrument's
        QuikChem method 31-107-06-1-B. Phosphates are determined by
        Lachat Instrument's QuikChem Method 31-115-01-1-H. Silicates
        were measured using Lachat Instrument's Method 31-114-27-1-C.
        TKN was determined using Lachat Instrument's QuikChem Method
        10-107-06-2-H. Nitrates and Nitrites were determined using
        Lachat Instrument's Method 31-107-04-1-C.
    Methodology:
      Methodology_Type: Lab SPM
      Methodology_Description:
        Suspended sediment filters were dried overnight at 60°C and
        weighed. The filters were then combusted at 400°C for 12 hours
        and weighed. The weights of the total suspended, organic and
        inorganic materials were derived.
    Methodology:
      Methodology_Type: Lab SeaBird
      Methodology_Description:
        Sea-Bird CTD data were acquired using Seasoft version 5.28c
        January and Feburary. April through December data were acquired 
        using version 5.30a. 

        January through March data were processed using version 5.28c.
        April, May, and October data per processed using version 5.31b.
        June through December (excluding October) data were processed 
	using version 5.37e.

        All scans were processed without averaging or interpolation with
        a bin size of one scan.

        In order to improve alignment between oxygen sensor values and
        other CTD sensor values, the Seasoft module ALIGNCTD was used,
        when possible, to determine which advance best compensated for
        the delay in oxygen sensor response time. When SeaBird data were
        processed, dissolved oxygen was advanced relative to temperature
        and conductivity values as follows: January: 3.0 seconds,
        February: 3.50 seconds, March: 5.00 seconds, April: 3.50 seconds,
        May: 3.00 seconds, June: 3.00 seconds, July: 3.19 seconds,
        August: 3.50 seconds, October: 4.00 seconds, November: 4.5 seconds,
	and December 4.50 seconds.

        Data values reported are from downcasts. Downcast scans selected
        for each CTD station were chosen to illustrate: 1) data values
        as near to the surface as possible, 2) data values at whole
        meter increments, and 3) data values as close to the bottom as
        the CTD was lowered. In certain cases where data values of a
        parameter changed significantly between whole meter increments,
        0.1- or 0.2-meter scans were selected.
  Cloud_Cover: Unknown
Spatial_Data_Organization_Information:
  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: Point
      Point_and_Vector_Object_Count: 236
Spatial_Reference_Information:
  Horizontal_Coordinate_System_Definition:
    Geographic:
      Latitude_Resolution: 0.0001
      Longitude_Resolution: 0.0001
      Geographic_Coordinate_Units: Decimal Degrees
    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: H04Hydrolab
      Entity_Type_Definition:
        The table lists Hydrolab CTD station identification number,
        record date, station name, record time, record depth, dissolved
        oxygen, temperature, specific conductance, salinity, pH, percent
        oxygen saturation and density sigma-t.  There are 3713 records.
      Entity_Type_Definition_Source: Producer defined.
    Attribute:
      Attribute_Label: Date
      Attribute_Definition:
        Date when a Hydrolab record was saved. (Date can be different
        for Hydrolab CTD cast and SeaBird CTD cast at same station).
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 20040113
          Range_Domain_Maximum: 20041213
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: Density
      Attribute_Definition: Density sigma-t
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.63
          Range_Domain_Maximum: 26.69
          Attribute_Units_of_Measure: Density sigma-t
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition: Depth of Hydrolab pressure sensor
      Attribute_Definition_Source: Producer Defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.1
          Range_Domain_Maximum: 51.2
          Attribute_Units_of_Measure: Meters
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: DO
      Attribute_Definition:
        Dissolved oxygen. N.B. The oxygen sensor maximized at 
        station C6B and C6C in May and at stations A'3 and A'4
        in July.  Dissolved oxygen concentrations at those stations 
	were greater than or equal to 15.0 mg/L.
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.15
          Range_Domain_Maximum: 99999
          Attribute_Units_of_Measure: mg/L
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: DOPctSat
      Attribute_Definition:
        Oxygen percent saturation.  N.B. The oxygen sensor maximized at 
        station C6B and C6C in May and at stations A'3 and A'4
        in July.  Oxygen Pecent Saturation at those stations 
	were greater than or equal to 200 %.
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2.26
          Range_Domain_Maximum: 99999
          Attribute_Units_of_Measure: Percent
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: pH
      Attribute_Definition: pH. All pH data were suspect and were deleted
	from the dataset.
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: N/A
          Range_Domain_Maximum: N/A
          Attribute_Units_of_Measure: pH units
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: Salin
      Attribute_Definition: Salinity
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 36.9
          Attribute_Units_of_Measure: psu
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: SpCond
      Attribute_Definition: Specific conductance
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 2.02
          Range_Domain_Maximum: 56.8
          Attribute_Units_of_Measure: mS/cm
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    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: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: StnID
      Attribute_Definition: Station identification number
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 236
          Attribute_Units_of_Measure: Integer
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: Temp
      Attribute_Definition: Temperature
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 9.17
          Range_Domain_Maximum: 32.78
          Attribute_Units_of_Measure: Degrees centigrade
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: Time when Hydrolab record was saved
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 00:01:18
          Range_Domain_Maximum: 23:59.56
          Attribute_Units_of_Measure: HH:mm:ss
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: H04Nutrient
      Entity_Type_Definition:
        The table lists station vial number, NH4, NO2+NO3, PO4
        and SiO3 values at depths. There are 469 records.
      Entity_Type_Definition_Source: Producer defined.
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition:
        0.0 depth = bucket sample. Mid-water sample depths were
        generally depths of SeaBird pressure sensor. Bottom sample
        depths were generally depths of Hydrolab pressure sensor. (See
        Methodology_Type Field water samples for exceptions).
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 51.2
          Attribute_Units_of_Measure: Meters
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: NH4
      Attribute_Definition: Ammonium
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.1
          Range_Domain_Maximum: 35.3
          Attribute_Units_of_Measure: µM
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: NO2+NO3
      Attribute_Definition: Nitrite + Nitrate
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.1
          Range_Domain_Maximum: 157.1
          Attribute_Units_of_Measure: µM
      Beginning_Date_of_Attribute_Values: 20020117
      Ending_Date_of_Attribute_Values: 20021212
    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: 7.6
          Attribute_Units_of_Measure: µM
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: SiO3
      Attribute_Definition: Silicate
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.1
          Range_Domain_Maximum: 168.3
          Attribute_Units_of_Measure: µM
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    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: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: StnID
      Attribute_Definition: Station identification number
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 236
          Attribute_Units_of_Measure: Integer
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: H04Pigments
      Entity_Type_Definition:
        The table lists sample depth, mean chlorophyll a, Fo/Fa ratio,
        mean phaeopigments, station name and station identification
        number and mean total pigments. There are 489 records.
      Entity_Type_Definition_Source: Producer defined.
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition:
        0.0 depth = bucket sample. Mid-water sample depths were
        generally depths of SeaBird pressure sensor. Bottom sample
        depths were generally depths of Hydrolab pressure sensor. (See
        Methodology_Type Field water samples for exceptions).
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 51
          Attribute_Units_of_Measure: Meters
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    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: 75.02
          Attribute_Units_of_Measure: µg/L
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: MeanF
      Attribute_Definition: Mean Fo/Fa ratio. F(original), F(acidified).
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.0
          Range_Domain_Maximum: 10.0
          Attribute_Units_of_Measure: FoFa ratio
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: MeanP
      Attribute_Definition: Mean Phaeopigments
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 95.65
          Attribute_Units_of_Measure: µg/L
      Beginning_Date_of_Attribute_Values: 20020117
      Ending_Date_of_Attribute_Values: 20021212
    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: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: StnID
      Attribute_Definition: Station identification number
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 236
          Attribute_Units_of_Measure: Integer
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: Total
      Attribute_Definition: Total pigments
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.36
          Range_Domain_Maximum: 61.44
          Attribute_Units_of_Measure: µg/L
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: H04PortaSal
      Entity_Type_Definition:
        The table lists sample depth and sample salinity (psu), station
        name and station identification number of values measured using
        a Guildline Instruments PortaSal. There are 124 records.
      Entity_Type_Definition_Source: Producer defined.
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition:
        Bottom sample depths were generally depths of Hydrolab pressure
        sensor. (See Methodology_Type Field water samples for
        exceptions). 0.0 depth = bucket sample.
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 30.7
          Attribute_Units_of_Measure: Meters
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: PortaSal
      Attribute_Definition: Salinity
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.998
          Range_Domain_Maximum: 36.453
          Attribute_Units_of_Measure: psu
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    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: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: StnID
      Attribute_Definition: Station identification number.
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 236
          Attribute_Units_of_Measure: Integer
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: H04Refract
      Entity_Type_Definition:
        The table lists sample date, sample Aquafauna refractometer
        salinity, sample MIDAS (SeaBird SBE 21 Thermosalinograph)
        salinity  and station identification number of values measured.
        There are 5 records.
      Entity_Type_Definition_Source: Producer defined.
    Attribute:
      Attribute_Label: Refract
      Attribute_Definition: Salinity measured with a refractometer.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 3
          Range_Domain_Maximum: 17
          Attribute_Units_of_Measure: Parts per thousand
      Beginning_Date_of_Attribute_Values: 20040721
      Ending_Date_of_Attribute_Values: 20040721
    Attribute:
      Attribute_Label: Sal-M
      Attribute_Definition: Salinity as logged from RV Pelicans MIDAS output.
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 7.4
          Range_Domain_Maximum: 14
      Beginning_Date_of_Attribute_Values: 20040721
      Ending_Date_of_Attribute_Values: 20040721
    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: 20040721
      Ending_Date_of_Attribute_Values: 20040721
    Attribute:
      Attribute_Label: StnID
      Attribute_Definition: Station identification number.
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 83
          Range_Domain_Maximum: 87
          Attribute_Units_of_Measure: Integer
      Beginning_Date_of_Attribute_Values: 20040721
      Ending_Date_of_Attribute_Values: 20040721
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: H04SeaBird
      Entity_Type_Definition:
        The table lists SeaBird CTD conductivity, depth, FlS (SeaTech
        fluorometer voltage), dissolved oxygen, oxygen percent
        saturation, salinity, density sigma-t, station name, station
        identification number, temperature and light transmissivity.
        There are 7927 records.
      Entity_Type_Definition_Source: Producer defined.
    Attribute:
      Attribute_Label: COS/m
      Attribute_Definition: Conductivity
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.135
          Range_Domain_Maximum: 5.822
          Attribute_Units_of_Measure: S/m
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: DepS
      Attribute_Definition: Depth of SeaBird pressure sensor.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.022
          Range_Domain_Maximum: 50.512
          Attribute_Units_of_Measure: Meters
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: FlS
      Attribute_Definition: in vivo fluorescence.  
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.011
          Range_Domain_Maximum: 3.35
          Attribute_Units_of_Measure: Voltage
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: OxMg/L
      Attribute_Definition: Dissolved oxygen
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.0675
          Range_Domain_Maximum: 11.921
          Attribute_Units_of_Measure: mg/L
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: OxPS
      Attribute_Definition: Percent oxygen saturation.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.0068
          Range_Domain_Maximum: 172.68
          Attribute_Units_of_Measure: Percent
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: Sal00
      Attribute_Definition: Salinity
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 36.468
          Attribute_Units_of_Measure: psu
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: Sigma-t00
      Attribute_Definition: Density sigma-t
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 25.841
          Attribute_Units_of_Measure: sigma-t
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    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: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: StnID
      Attribute_Definition: Station identification number.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 236
          Attribute_Units_of_Measure: Integer
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: T090C
      Attribute_Definition: Water Temperature
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 8.9463
          Range_Domain_Maximum: 32.001
          Attribute_Units_of_Measure: Degrees centigrade
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: Xmiss
      Attribute_Definition: Percent light transmission
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -0.0323
          Range_Domain_Maximum: 97.317
          Attribute_Units_of_Measure: Percent
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: H04SPM
      Entity_Type_Definition:
        The table lists values for inorganic, organic and total
        suspended particulate material, depth, station name and station
        identification number. There are 267 records.
      Entity_Type_Definition_Source: Producer defined.
    Attribute:
      Attribute_Label: Depth
      Attribute_Definition:
        Sample depths were generally depths of Hydrolab pressure
        sensor. (See Methodology_Type Field water samples for
        exceptions). 0.0 depth = bucket sample.
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 19
          Attribute_Units_of_Measure: Meters
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: InOrgSPM
      Attribute_Definition: Inorganic suspended particulate material.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 157
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: OrgSPM
      Attribute_Definition: Organic suspended particulate material.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.95
          Range_Domain_Maximum: 37
          Attribute_Units_of_Measure: mg/L
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    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: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: StnID
      Attribute_Definition: Station identification number.
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 236
          Attribute_Units_of_Measure: Integer
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: TotalSPM
      Attribute_Definition: Total suspended sediments.
      Attribute_Definition_Source: Producer defined
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1.9
          Range_Domain_Maximum: 194
          Attribute_Units_of_Measure: mg/L
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: H04Stn
      Entity_Type_Definition:
        The table lists altimeter height, date, fathometer depth,
        latitude, longitude, secchi disk depth, station name, station
        identification number, time of Hydrolab CTD cast and time of
        SeaBird CTD cast. There are 236 records.
      Entity_Type_Definition_Source: Producer defined.
    Attribute:
      Attribute_Label: Alt
      Attribute_Definition: Height of SeaBird CTD package above the bottom.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 1.799
          Attribute_Units_of_Measure: Meters
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: Date
      Attribute_Definition:
        Date samples were collected at station. (Date may be different
        for Hydrolab CTD cast and SeaBird CTD cast at same station).
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 20040113
          Range_Domain_Maximum: 20041213
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: Fath
      Attribute_Definition:
        Depth of Station as measured by ship's fathometer, corrected for
        hull depth.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 4.04
          Range_Domain_Maximum: 51.3
          Attribute_Units_of_Measure: Meters
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: Lat
      Attribute_Definition: Latitude of sampling station.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 28.499
          Range_Domain_Maximum: 29.832
          Attribute_Units_of_Measure: Decimal degrees.
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy: -9999
        Attribute_Value_Accuracy_Explanation:
          Latitude value was recorded from the ship's differential GPS
          at the beginning of sampling operations. GPS manufacturer's
          accuracy claims range from 1 to 15 meters 95% of the time.
          Wind, currents and tidal forces may move the ship from the
          beginning position. Survey vessel was not anchored during
          sampling on July shelfwide cruise. Vessel was only
          occasionally anchored or tied to an oilfield structure
          during other monthly cruises. 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: Lon
      Attribute_Definition: Longitude of sampling station.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: -94.067
          Range_Domain_Maximum: -89.45
          Attribute_Units_of_Measure: Decimal degrees.
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
      Attribute_Value_Accuracy_Information:
        Attribute_Value_Accuracy: -9999
        Attribute_Value_Accuracy_Explanation:
          Longitude value was recorded from the ship's differential
          GPS at the beginning of sampling operations. GPS
          manufacturer's accuracy claims range from 1 to 15 meters 95%
          of the time. Wind, currents and tidal forces may move the
          ship from the beginning position. Survey vessel was not
          anchored during sampling on July shelfwide cruise. Vessel
          was only occasionally anchored or tied to an oilfield
          structure during other monthly cruises. 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: Secc
      Attribute_Definition: Secchi disk depth.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0.1
          Range_Domain_Maximum: 13.5
          Attribute_Units_of_Measure: Meters
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    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: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: StnID
      Attribute_Definition: Station identification number.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 1
          Range_Domain_Maximum: 236
          Attribute_Units_of_Measure: Integer
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: TimeHL
      Attribute_Definition:
        Time of beginning of Hydrolab CTD cast as well as time of
        Pigment, PortaSal and Nutrient samples.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 00:06:00
          Range_Domain_Maximum: 23:50:00
          Attribute_Units_of_Measure: HH:mm:ss
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
    Attribute:
      Attribute_Label: TimeSB
      Attribute_Definition: Time of beginning of SeaBird CTD cast.
      Attribute_Definition_Source: Producer defined.
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 00:03
          Range_Domain_Maximum: 23:52
          Attribute_Units_of_Measure: HH:mm
      Beginning_Date_of_Attribute_Values: 20040113
      Ending_Date_of_Attribute_Values: 20041213
  Overview_Description:
    Entity_and_Attribute_Overview:
      The related data tables H04Hydrolab, H04Nutrients, H04Pigment,
      H04PortaSal, H04Refract, H04SeaBird, H04SPM, and H04Stn contain
      spatial, temporal, physical and biological water quality data
      acquired during the 2004 Hypoxia Surveys of the Louisiana coastal
      waters. Each table contains a StnID field that can be used to key
      joins with other tables.
    Entity_and_Attribute_Detail_Citation: For detailed attribute information contact N. 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: nrabalais@lumcon.edu
  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: 0.816
      Digital_Transfer_Option:
        Offline_Option:
          Offline_Media: CDROM
          Recording_Format: DOS Copy
      Digital_Transfer_Option:
        Online_Option:
          Computer_Contact_Information:
            Network_Address:
              Network_Resource_Name: LAHS2004.mdb
          Access_Instructions: Contact Distributor.
    Fees: None
    Ordering_Instructions: Call or write the Distributor with requests for data sets.
  Custom_Order_Process: Contact distributor
Metadata_Reference_Information:
  Metadata_Date: 20070720
  Metadata_Review_Date: 20070720
  Metadata_Future_Review_Date: 20170720
  Metadata_Contact:
    Contact_Information:
      Contact_Person_Primary:
        Contact_Person: Adam Sapp
        Contact_Organization: Louisiana Universities Marine Consortium
      Contact_Address:
        Address_Type: mailing address
        Address: LUMCON, 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
  Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata
  Metadata_Standard_Version: FGDC-STD-001.1-1999
  Metadata_Time_Convention: local time

