Oceanographic CTD 3d Profiles from Seabird Instruments

Table of Contents



IDENTIFICATION_INFORMATION



  Citation:
    Citation_Information:
      Originator: Philip N. Hooge
      Originator: Elizabeth Ross Hooge
      Publication_Date: 20001201
      Title: Oceanographic CTD 3d Profiles from Seabird Instruments
      Edition: 1
      Geospatial_Data_Presentation_Form: Map
      Publication_Information:
        Publication_Place: Glacierr Bay National Park, Gustavus, Alaska
        Publisher: USGS Alaska Biological Science Center, Glacier Bay National Park
      Other_Citation_Details:
      Online_Linkage: www.absc.usgs.gov/glba/oceanography/index.htm
      Larger_Work_Citation:
        Citation_Information:
          Originator: P. Hooge
          Publication_Date: 20001201
          Title: Fjord Oceanography of Glacier Bay
          Publication_Information:
            Publication_Place: Glacier Bay National Park, Gustavus, Alaska
            Publisher: USGS Alaska Biological Science Center, Glacier Bay National Park
          Online_Linkage: www.absc.usgs.gov/glba/oceanography/index.htm
  Description:
    Abstract:
      Oceanography describes one of the most fundamental physical
      aspects of a marine ecosystem. Most of the resource and
      research issues in Glacier Bay are marine in whole or part.
      Glacier Bay exhibits a highly complex oceanographic regime
      within a small area. An understanding of many of the
      resource and research issues in Glacier Bay will not be
      possible without an understanding of the underlying
      oceanographic processes causing the large spatial and
      annual variation.
      	The Bay is a recently (300 years ago) deglaciated fjord
      located within Glacier Bay National Park in Southeast
      Alaska. Glacier Bay is a fjord estuarine system that has
      multiple sills. These sills are often associated with
      contractions and are backed by very deep basins with
      tidewater glaciers and many streams. Glacier Bay
      experiences a large amount of runoff, high sedimentation,
      and large tidal variations. Melting occurs year-round,
      which fuels the estuarine circulation even through the
      winter. This runoff, and the presence of the tidewater
      glaciers makes the bay extremely cold. There are many
      small- and large-scale mixing and upwelling zones at sills,
      glacial faces, and streams. The complex topography and
      strong currents lead to highly variable salinity,
      temperature, sediment, productivity, light penetration, and
      current patterns within a small area. This complexity
      defies simple characterization or modeling based on other
      areas in Southeast Alaska. While several oceanographic
      studies have been conducted in Glacier Bay, these studies
      are contradictory and were of short duration and limited
      coverage, missing much of the spatial, seasonal and annual
      variation. In addition, some assumptions based on past
      studies have been contradicted by recent results (Hooge, et
      al. 2000) . The constantly changing nature of the Bay may
      contribute to contradictions among past studies and between
      recent and historical results.
      	Because of the importance of oceanography to understanding
      critical resource and research problems, the complexity of
      the Bay's oceanographic system, as well as the limited and
      contradictory prior work, it is imperative that a
      sustained, rigorous, and complete monitoring program be
      developed and implemented.
    Purpose:
      The Glacier Bay oceanographic project was designed for the
      acquisition, analysis, and modeling of fjord-estuarine
      oceanographic data in Glacier Bay, Alaska. Located along
      the glacial chronosequence in the Bay, 24 stations are
      profiled multiple times each year in order to acquire
      measurements of temperature, salinity, productivity
      (phytoplankton biomass through chlorophyll-a), sediment
      load, and light penetration throughout the water column at
      1-meter depth intervals from the surface to near the sea
      floor. Duplicate samples are taken at slack and peak
      current flow in those areas where water column
      characteristics are strongly affected by tidal stage. Each
      survey data set is integrated into a Geographic Information
      System environment utilizing the Oceanographic Analyst
      Extension (OAE), which allows viewing and manipulation of
      3- and 4-D oceanographic datasets within ESRI's ArcView GIS.
    Supplemental_Information:
  Time_Period_of_Content:
    Time_Period_Information:
      Range_of_Dates/Times:
        Beginning_Date: 1993
        Ending_Date: Present
    Currentness_Reference: Current
  Status:
    Progress: Complete
    Maintenance_and_Update_Frequency: Annually
  Spatial_Domain:
    Bounding_Coordinates:
      West_Bounding_Coordinate: -137.0492
      East_Bounding_Coordinate: -135.8733
      North_Bounding_Coordinate: 59.0591
      South_Bounding_Coordinate: 58.3144
  Keywords:
    Theme:
      Theme_Keyword_Thesaurus: None
      Theme_Keyword: Oceanography
      Theme_Keyword: CTD
      Theme_Keyword: Glacier Bay
      Theme_Keyword: Fjord
      Theme_Keyword: Estuarine
      Theme_Keyword: Estuary
      Theme_Keyword: Tidewater Glacier
      Theme_Keyword: Sill
      Theme_Keyword: Contraction
      Theme_Keyword: Hydraulic Control
      Theme_Keyword: Marine Ecosystem
      Theme_Keyword: Temperature
      Theme_Keyword: Salinity
      Theme_Keyword: Density
      Theme_Keyword: Sigma-T
      Theme_Keyword: OBS
      Theme_Keyword: PAR
      Theme_Keyword: Chlorophyll-a
      Theme_Keyword: Photosynthetically Active Radiation
      Theme_Keyword: Backscatterance
      Theme_Keyword: Sedimentation
      Theme_Keyword: Flocculation
      Theme_Keyword: Primary Productivity
      Theme_Keyword: Primary Production
      Theme_Keyword: Photic Depth
      Theme_Keyword: Photic Zone
      Theme_Keyword: Halocline
      Theme_Keyword: Thermocline
      Theme_Keyword: Pycnocline
      Theme_Keyword: Mixed Layer
    Place:
      Place_Keyword_Thesaurus: None
      Place_Keyword: Glacier Bay
      Place_Keyword: Alaska
      Place_Keyword: Gustavus
      Place_Keyword: Southeast Alaska
      Place_Keyword: Norther Lattitude
      Place_Keyword: High Lattitude
      Place_Keyword: Sub-Arctic
      Place_Keyword: Cross Sound
      Place_Keyword: Icy Strait
      Place_Keyword: Inside Passage
      Place_Keyword: Gulf of Alaska
      Place_Keyword: North Pacific
  Access_Constraints:
  Use_Constraints:
    Please contact before publication use
  Point_of_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: USGS Alaska Biological Science Center
        Contact_Person: Philip N. Hooge
      Contact_Position: Research Population Ecologist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: P.O. Box 292, Glacier Bay National Park
        City: Gustavus
        State_or_Province: AK
        Postal_Code: 99826
        Country: USA
      Contact_Voice_Telephone: 907-697-2637
      Contact_Facsimile_Telephone: 907-697-2654
      Contact_Electronic_Mail_Address: philip_hooge@usgs.gov
      Hours_of_Service: 10:00-18:00 Alaska Time
  Native_Data_Set_Environment:
    ArcView version 3.2 shapefile format
    k:\eco_data\data\glba\ocean\data\processed\2000\200003oceanography\200003oceanography.shp
 
Top





DATA_QUALITY_INFORMATION



  Attribute_Accuracy:
    Attribute_Accuracy_Report:
      Accuracy varies with the different oceanographic variables
      locations, and years. However the insturments were
      calibrated each year, values checked for errors, and all
      observationally deviant data removed. See the oceanographic
      protocol manual and report at
      www.absc.usgs.gov/glba/oceanography/index.htm for details
      on the way values were recorded and accuracy issues.
  Logical_Consistency_Report:
  Completeness_Report:
    This data is updated after each survey which occurs
    approximately five times a year.
  Positional_Accuracy:
    Horizontal_Positional_Accuracy:
      Horizontal_Positional_Accuracy_Report:
        4 meters absolute accuracy using military crypto code
        receivers. Approximately 100 meter aquisition of repeated
        station position.
    Vertical_Positional_Accuracy:
      Vertical_Positional_Accuracy_Report:
        None
  Lineage:
    Source_Information:
      Source_Citation:
        Citation_Information:
          Originator: Philip N. Hooge
          Publication_Date: Varies
          Title: Seabird Instruments CNV files which are Georeferenced
          Edition: Varies with software and insturment
          Geospatial_Data_Presentation_Form: map
          Publication_Information:
            Publication_Place: Glacierr Bay National Park, Gustavus, Alaska
            Publisher: USGS Alaska Biological Science Center, Glacier Bay National Park
          Other_Citation_Details:
          Online_Linkage: www.absc.usgs.gov/glba/oceanography/index.htm
          Larger_Work_Citation:
            Citation_Information:
              Originator: P. Hooge
              Publication_Date: Varies
              Title: Fjord Oceanography of Glacier Bay
              Publication_Information:
                Publication_Place: Glacier Bay National Park, Gustavus, Alaska
                Publisher: USGS Alaska Biological Science Center, Glacier Bay National Park
              Online_Linkage: www.absc.usgs.gov/glba/oceanography/index.htm
      Source_Scale_Denominator: 
      Type_of_Source_Media: Digital
      Source_Time_Period_of_Content:
        Time_Period_Information:
          Range_of_Dates/Times:
            Beginning_Date: 1993
            Ending_Date: Present
        Source_Currentness_Reference: Current
      Source_Citation_Abbreviation: 
      Source_Contribution:
        The Seabird Instrument files are the primary part of the
        georeferenced CTD profiles. Locational and tide information
        is added as well as some locationally dependent calibration coeficients.
    Process_Step:
      Process_Description:
        Processing steps of this data are highly detailed and
        involved. These processing steps involve both detailed
        manipulation of the instrument derived variables as well as
        extensive parsing, databasing, georeferencing, creation of
        2, 3 and 4-D spatial datasets, and then spatial and
        database joining and aggregation. These processes are
        described in detail in the Fjord Oceanographic Monitoring
        Handbook available in pdf form at wwww.absc.usgs.gov/glba/oceanography/index.htm
      Source_Used_Citation_Abbreviation: 
      Process_Date: 1993 to current: each survey processed as obtained
      Source_Produced_Citation_Abbreviation: 
      Process_Contact:
        Contact_Information:
          Contact_Person_Primary:
            Contact_Organization: USGS Alaska Biological Science Center
            Contact_Person: Philip N. Hooge
          Contact_Position: Research Population Ecologist
          Contact_Address:
            Address_Type: mailing and physical address
            Address: P.O. Box 292, Glacier Bay National Park
            City: Gustavus
            State_or_Province: AK
            Postal_Code: 99826
            Country: USA
          Contact_Voice_Telephone: 907-697-2637
          Contact_Facsimile_Telephone: 907-697-2654
          Contact_Electronic_Mail_Address: philip_hooge@usgs.gov
          Hours_of_Service: 10:00-18:00 Alaska Time


Top





SPATIAL_DATA_ORGANIZATION_INFORMATION



  Direct_Spatial_Reference_Method: Vector
  Point_and_Vector_Object_Information:
    SDTS_Terms_Description:
      SDTS_Point_and_Vector_Object_Type: 
      Point_and_Vector_Object_Count: 4378


Top





SPATIAL_REFERENCE_INFORMATION

 
  Horizontal_Coordinate_System_Definition:
    Planar:
      Map_Projection:
        Map_Projection_Name: Transverse Mercator
        Transverse_Mercator:
          Scale_Factor_at_Central_Meridian: 0.999600
          Longitude_of_Central_Meridian: -135.000000
          Latitude_of_Projection_Origin: 0.000000
          False_Easting: 500000.000000
          False_Northing: 0.000000
      Planar_Coordinate_Information:
        Planar_Coordinate_Encoding_Method: Coordinate pair
        Coordinate_Representation:
          Abscissa_Resolution: 
          Ordinate_Resolution: 
        Planar_Distance_Units: Meters
    Geodetic_Model:
      Horizontal_Datum_Name: North American Datum of 1927
      Ellipsoid_Name: Clarke 1866
      Semi-major_Axis: 6378206.4000000
      Denominator_of_Flattening_Ratio: 294.98


Top





ENTITY_AND_ATTRIBUTE_INFORMATION



  Detailed_Description:
    Entity_Type:
      Entity_Type_Label: 200003oceanography.dbf
      Entity_Type_Definition: Shapefile Attribute Table
      Entity_Type_Definition_Source: None
    Attribute:
      Attribute_Label: Cast
      Attribute_Definition: The Oceanographic Instrument Cast Number
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Date
      Attribute_Definition: The Date of the Cast
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Date Field
    Attribute:
      Attribute_Label: Time
      Attribute_Definition: The time the cast was made
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Character Field
    Attribute:
      Attribute_Label: Utmx
      Attribute_Definition: The X coordinate Nad 27 Zone 8
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Utmy
      Attribute_Definition: The Y coordinate Nad 27 Zone 8
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Scan
      Attribute_Definition: Instrument Scan Number
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Pr
      Attribute_Definition: Pressure
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: T068
      Attribute_Definition: Temperature Celsius
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: C0s_m
      Attribute_Definition: Conductivity
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Par
      Attribute_Definition: Photosynthetically Active Radiation
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Wetstar
      Attribute_Definition: Chlorophyl-a concentration mg/m3
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Obs
      Attribute_Definition: Optical Backscatter in mv
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Times
      Attribute_Definition: Time of the instrument reading
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Deps
      Attribute_Definition: Depth in seawater -derived from pressure
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Sal00
      Attribute_Definition: Salinity ppt, derived from conductivity
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Sigma_t00
      Attribute_Definition: Density, derived from conductivity and temperature
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Svc
      Attribute_Definition: Sound Velocity derived from density
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Avgsvc
      Attribute_Definition: Average Sound Velocity
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Flag
      Attribute_Definition: Bad Value Flag
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Enumerated_Domain: 
          Enumerated_Domain_Value: 0.000
          Enumerated_Domain_Value_Definition: Good Value
          Enumerated_Domain_Value_Definition_Source: 
    Attribute:
      Attribute_Label: Nbin
      Attribute_Definition: Number of measurments average in a depth bin
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Sucs_Dist
      Attribute_Definition: Distance between casts, a recalculated value dependent on
        chosen contouring profiles
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
    Attribute:
      Attribute_Label: Prop_par
      Attribute_Definition: Proportional Par of highest value in cast
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Range_Domain:
          Range_Domain_Minimum: 0
          Range_Domain_Maximum: 1
    Attribute:
      Attribute_Label: Maxdepth
      Attribute_Definition: The maximum depth of the cast
      Attribute_Definition_Source: 
      Attribute_Domain_Values:
        Unrepresentable_Domain: Numeric Field
  Overview_Description:
    Entity_and_Attribute_Overview:
    Entity_and_Attribute_Detail_Citation:


Top





DISTRIBUTION_INFORMATION



  Distributor:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: USGS Alaska Biological Science Center
        Contact_Person: Philip N. Hooge
      Contact_Position: Research Population Ecologist
      Contact_Address:
        Address_Type: mailing and physical address
        Address: P.O. Box 292, Glacier Bay National Park
        City: Gustavus
        State_or_Province: AK
        Postal_Code: 99826
        Country: USA
      Contact_Voice_Telephone: 907-697-2637
      Contact_Facsimile_Telephone: 907-697-2654
      Contact_Electronic_Mail_Address: philip_hooge@usgs.gov
      Hours_of_Service: 10:00-18:00 Alaska Time
  Resource_Description:
    Profile Master Data For Glacier Bay, Alaska
  Distribution_Liability:
    None
  Standard_Order_Process:
    Digital_Form:
      Digital_Transfer_Information:
        Format_Name:ArcView Shape Files PointZ
      Digital_Transfer_Option:
        Offline_Option:
          Offline_Media: CD Rom
          Recording_Format: Juliet
          Compatibility_Information:
            Can be used with any vector GIS capable system able to use
            or import ArcView Shape Files. The information can also be
            accessed from the dbf files containing the attribute
            information since the XY coordinates are in the table.
    Fees: None
    Ordering_Instructions:
      Contact Philip N. Hooge Ph.D. at
      philip_hooge@usgs.gov see
      www.absc.usgs.gov/glba/oceanography/index.htm for current
      ordering or downloading methods.


Top





METADATA_REFERENCE_INFORMATION



  Metadata_Date: 11/22/2000
  Metadata_Review_Date: 11/22/2000
  Metadata_Contact:
    Contact_Information:
      Contact_Organization_Primary:
        Contact_Organization: USGS Alaska Biological Science Center
        Contact_Person: Philip N. Hooge
      Contact_Position: Research Population Ecologist
      Contact_Address:
        Address_Type: Mailing and physical address
        Address: P.O. Box 292, Glacier Bay National Park
        City: Gustavus
        State_or_Province: AK
        Postal_Code: 99826
        Country: USA
      Contact_Voice_Telephone: 907-697-2637
      Contact_Facsimile_Telephone: 907-697-2654
      Contact_Electronic_Mail_Address: philip_hooge@usgs.gov
      Hours_of_Service: 10:00-18:00 Alaska Time
  Metadata_Standard_Name: FGDC CSDGM
  Metadata_Standard_Version: FGDC-STD-001-1998
Top