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Lake Okeechobee Bathymetry data
Metadata also available as - [Questions & Answers] - [Parseable text] - [XML]
Metadata:
- Identification_Information:
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- Citation:
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- Citation_Information:
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- Originator:
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Gary W. Hill
Nancy T. DeWitt;
Mark Hansen
- Publication_Date: 2002
- Title: Lake Okeechobee Bathymetry data
- Geospatial_Data_Presentation_Form: text files, maps
- Online_Linkage:
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<http://sofia.usgs.gov/publications/maps/lakeokeebathy/index.html>
- Description:
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- Abstract:
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The data from the bathymetric mapping of Lake Okeechobee are provided in two forms: as raw data files and as elevation contour maps
- Purpose:
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High resolution acoustic bathymetric surveying is a proven method to map sea and lake floor elevations. Of primary interest to the South Florida Water Management District (SFWMD) is the quantification of the present day lakebed in Lake Okeechobee. This information can be used by water-management decision-makers to better assess the water capacity of the lake at various levels.
- Time_Period_of_Content:
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- Time_Period_Information:
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- Single_Date/Time:
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- Calendar_Date: 200109
- Currentness_Reference: ground condition
- Status:
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- Progress: Complete
- Maintenance_and_Update_Frequency: None planned
- Spatial_Domain:
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- Bounding_Coordinates:
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- West_Bounding_Coordinate: -81.125
- East_Bounding_Coordinate: -80.5
- North_Bounding_Coordinate: 27.25
- South_Bounding_Coordinate: 26.625
- Keywords:
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- Theme:
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- Theme_Keyword_Thesaurus: none
- Theme_Keyword: bathymetry
- Theme_Keyword: mapping
- Theme_Keyword: geography
- Theme_Keyword: hydrogeology
- Theme:
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- Theme_Keyword_Thesaurus: ISO 19115 Topic Category
- Theme_Keyword: environment
- Theme_Keyword: geoscientificInformation
- Theme_Keyword: inlandWaters
- Theme_Keyword: 007
- Theme_Keyword: 008
- Theme_Keyword: 012
- Place:
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- Place_Keyword_Thesaurus:
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Department of Commerce, 1995, Countries, Dependencies, Areas of Special Sovereignty, and Their Principal Administrative Divisions, Federal Information Processing Standard (FIPS) 10-4, Washington, DC, National Institute of Standards and Technology
- Place_Keyword: United States
- Place_Keyword: US
- Place:
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- Place_Keyword_Thesaurus:
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U.S. Department of Commerce, 1987, Codes for the identification of the States, the District of Columbia and the outlying areas of the United States, and associated areas (Federal Information Processing Standard 5-2): Washington, DC, NIST
- Place_Keyword: Florida
- Place_Keyword: FL
- Place:
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- Place_Keyword_Thesaurus:
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Department of Commerce, 1990, Counties and Equivalent Entities of the United States, Its Possessions, and Associated Areas, FIPS 6-3, Washington, DC, National Institute of Standards and Technology
- Place_Keyword: Martin County
- Place_Keyword: Palm Beach County
- Place_Keyword: Glades County
- Place_Keyword: Hendry County
- Place_Keyword: Okeechobee County
- Place:
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- Place_Keyword_Thesaurus: USGS Geographic Names Information System
- Place_Keyword: Lake Okeechobee
- Place:
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- Place_Keyword_Thesaurus: none
- Place_Keyword: Greater Lake Okeechobee
- Access_Constraints: none
- Use_Constraints: none
- Point_of_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: Mark Hansen
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
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- Address_Type: mailing and physical address
- Address: 600 Fourth Street South
- City: St. Petersburg
- State_or_Province: FL
- Postal_Code: 33701
- Country: USA
- Contact_Voice_Telephone: 727 803-8747 x 3036
- Contact_Facsimile_Telephone: 727 803-2030
- Contact_Electronic_Mail_Address: mhansen@usgs.gov
- Browse_Graphic:
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- Browse_Graphic_File_Name: <http://sofia.usgs.gov/publications/maps/lakeokeebathy/>
- Browse_Graphic_File_Description: satellite image showing Lake Okeechobee bathymetric contours
- Browse_Graphic_File_Type: JPEG
- Data_Set_Credit: The SFWMD provided partial funding for this data collection.
- Native_Data_Set_Environment: ASCII text files, JPEG and PDF contour maps
- Cross_Reference:
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- Citation_Information:
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- Originator:
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Hill, Gary W.
DeWitt, Nancy T;
Hansen, Mark
- Publication_Date: 2001
- Title: Elevation Contours of Lake Okeechobee
- Geospatial_Data_Presentation_Form: map
- Publication_Information:
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- Publication_Place: St. Petersburg, FL
- Publisher: U.S. Geological Survey
- Online_Linkage: <http://sofia.usgs.gov/publications/maps/lakeokeebathy/>
- Data_Quality_Information:
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- Logical_Consistency_Report: not available
- Completeness_Report: unknown
- Positional_Accuracy:
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- Horizontal_Positional_Accuracy:
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- Horizontal_Positional_Accuracy_Report:
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Boat position measured using precise differential GPS receivers. Horizontal accuracy is +/- 4 cm (1.6in)
- Vertical_Positional_Accuracy:
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- Vertical_Positional_Accuracy_Report:
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Dynamic elevation measured using precise differential GPS receivers. Vertical accuracy is +/- 8 cm (3 in).
- Lineage:
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- Process_Step:
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- Process_Description:
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The USGS has developed a hydrographic survey system specifically designed to map in very shallow water. A survey quality 200 kHz depth sounder was used to acquire water depth measurements and a motion sensor measured heave, pitch, and roll of the boat. A measurement was collected every second or about every 3 m (10 ft) along a survey line. To achieve horizontal accuracy of +/- 4 cm (1.6 in) and vertical accuracy of +/- 8cm (3 in), the boat could not be operated more than 20 km from any one GPS base station. It was anticipated that two GPS base stations would be used. Several new survey benchmarks were established around the lake perimeter for GPS base station occupation.
Survey track line spacing was 1000 m apart oriented in a north-south direction. A perimeter survey line and several east-west lines were collected also. In addition random crossing lines were collected daily. Crossing lines were used to crosscheck and verify the survey. Soundings were collected along each track line at 3 m (10 ft) spacing. A minimum of 1550 kilometers of survey line were collected. In shallow areas, data were collected in a minimum of 2 feet water depth except where there was potential damage to the bottom environment or the boat/motors.
- Process_Date: 200109
- Process_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: Mark Hansen
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
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- Address_Type: mailing and physical address
- Address: 600 Fourth Street South
- City: St. Petersburg
- State_or_Province: FL
- Postal_Code: 33701
- Country: USA
- Contact_Voice_Telephone: 727 803-8747 x 3036
- Contact_Facsimile_Telephone: 727 803-2030
- Contact_Electronic_Mail_Address: mhansen@usgs.gov
- Spatial_Data_Organization_Information:
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- Indirect_Spatial_Reference: Lake Okeechobee
- Spatial_Reference_Information:
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- Horizontal_Coordinate_System_Definition:
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- Geographic:
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- Latitude_Resolution: 0.00000001
- Longitude_Resolution: 0.00000001
- Geographic_Coordinate_Units: Decimal degrees
- Geodetic_Model:
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- Horizontal_Datum_Name: North American Datum of 1983
- Ellipsoid_Name: Geodetic Reference System 80
- Semi-major_Axis: 6378137
- Denominator_of_Flattening_Ratio: 298.257
- Vertical_Coordinate_System_Definition:
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- Altitude_System_Definition:
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- Altitude_Datum_Name: North American Vertical Datum of 1988
- Altitude_Resolution: 1.0,0.5
- Altitude_Distance_Units: feet, meters
- Altitude_Encoding_Method:
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Explicit elevation coordinate included with horizontal coordinates
- Entity_and_Attribute_Information:
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- Overview_Description:
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- Entity_and_Attribute_Overview:
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Data in the "raw data" files are in the following format:
Col 1 Longitude
Col 2 Latitude
Col 3 X State Plane (ft) Florida East Zone
Col 4 Y State Plane (ft) Florida East Zone
Col 5 VERTCON corrections factor (m)
Col 6 Elevation (m) - NAVD88
Col 7 Elevation (ft) - NAVD88
Col 8 Elevation (m) - NGVD29
Col 9 Elevation (ft) - NGVD29
- Entity_and_Attribute_Detail_Citation: USGS personnel
- Distribution_Information:
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- Distributor:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: Heather S.Henkel
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
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- Address_Type: mailing address
- Address: 600 Fourth St. South
- City: St. Petersburg
- State_or_Province: FL
- Postal_Code: 33701
- Country: USA
- Contact_Voice_Telephone: 727 803-8747 ext 3028
- Contact_Facsimile_Telephone: 727 803-2030
- Contact_Electronic_Mail_Address: hhenkel@usgs.gov
- Resource_Description: raw data file (ptokeemft.xyz)
- Distribution_Liability: The data have no explicit or implied guarantees.
- Standard_Order_Process:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: ASCII text
- Transfer_Size: 60
- Digital_Transfer_Option:
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- Online_Option:
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- Computer_Contact_Information:
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- Network_Address:
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- Network_Resource_Name:
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<http://sofia.usgs.gov/publications/maps/lakeokeebathy/index.html#data>
- Access_Instructions: Data may be downloaded from the SOFIA website
- Fees: none
- Distribution_Information:
-
- Distributor:
-
- Contact_Information:
-
- Contact_Person_Primary:
-
- Contact_Person: Heather S.Henkel
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
-
- Address_Type: mailing address
- Address: 600 Fourth St. South
- City: St. Petersburg
- State_or_Province: FL
- Postal_Code: 33701
- Country: USA
- Contact_Voice_Telephone: 727 803-8747 ext 3028
- Contact_Facsimile_Telephone: 727 803-2030
- Contact_Electronic_Mail_Address: hhenkel@usgs.gov
- Resource_Description: Lake Okeechobee contour maps
- Distribution_Liability: The data have no explicit or implied guarantees.
- Standard_Order_Process:
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- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: Adobe Illustrator
- Format_Version_Number: unknown
- Format_Information_Content:
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AI-ft.zip is the feet version of the contour map and AI-m.zip is the meter version of the map.
- File_Decompression_Technique: The files are "zipped" and must be "unzipped" before use.
- Transfer_Size: 96
- Digital_Transfer_Option:
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- Online_Option:
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- Computer_Contact_Information:
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- Network_Address:
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- Network_Resource_Name:
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<http://sofia.usgs.gov/publications/maps/lakeokeebathy/index.html#data>
- Access_Instructions: The contour maps may be downloaded from the SOFIA website.
- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: JPEG
- Format_Version_Number: unknown
- Format_Information_Content:
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The maps are available in two versions - contours in feet and contours in meters
- Transfer_Size: 0.612
- Digital_Transfer_Option:
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- Online_Option:
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- Computer_Contact_Information:
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- Network_Address:
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- Network_Resource_Name:
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<http://sofia.usgs.gov/publications/maps/lakeokeebathy/index.html>
- Access_Instructions: The maps may be downloaded from the SOFIA website
- Digital_Form:
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- Digital_Transfer_Information:
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- Format_Name: Adobe PDF
- Format_Version_Number: unknown
- Format_Information_Content:
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The maps are available in two sizes - 8.18 x 9.92 in and 27.24 x. 33.03 in with the contours in feet and meters
- Transfer_Size: 3.9
- Digital_Transfer_Option:
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- Online_Option:
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- Computer_Contact_Information:
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- Network_Address:
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- Network_Resource_Name:
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<http://sofia.usgs.gov/publications/maps/lakeokeebathy/index.html>
- Access_Instructions: The maps may be downloaded from the SOFIA website
- Fees: none
- Metadata_Reference_Information:
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- Metadata_Date: 20070523
- Metadata_Contact:
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- Contact_Information:
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- Contact_Person_Primary:
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- Contact_Person: Heather Henkel
- Contact_Organization: U.S. Geological Survey
- Contact_Address:
-
- Address_Type: mailing and physical address
- Address: 600 Fourth Street South
- City: St. Petersburg
- State_or_Province: FL
- Postal_Code: 33701
- Country: USA
- Contact_Voice_Telephone: 727 803-8747 ext 3028
- Contact_Facsimile_Telephone: 727 803-2030
- Contact_Electronic_Mail_Address: sofia-metadata@usgs.gov
- Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata
- Metadata_Standard_Version: FGDC-STD-001-1998
This page is <http://sofia.usgs.gov/metadata/sflwww/lake_okee_bathy_data.html>
U.S. Department of the Interior, U.S. Geological Survey, Center for
Coastal Geology
Comments and suggestions? Contact: Heather
Henkel - Webmaster
Generated by mp version 2.8.18 on Wed May 23 17:31:53 2007