Gary W. Hill
Nancy T. DeWitt
Mark E. Hansen
2002
Lake Okeechobee Bathymetry data
text files, maps
https://sofia.usgs.gov/publications/maps/lakeokeebathy/index.html
The data from the bathymetric mapping of Lake Okeechobee are provided in two forms: as raw data files and as elevation contour maps
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.
200109
ground condition
None planned
-81.125
-80.5
27.25
26.625
USGS Metadata Identifier
USGS:0ccb2b57-c9f5-4c53-a2fd-e872cfd0b18b
USGS Thesaurus
marine geology
bathymetry
cartography
geography
hydrogeology
ISO 19115 Topic Category
environment
geoscientificInformation
inlandWaters
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
United States
US
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
Florida
FL
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
Martin County
Palm Beach County
Glades County
Hendry County
Okeechobee County
USGS Geographic Names Information System
Lake Okeechobee
none
Greater Lake Okeechobee
none
none
Mark E. Hansen
U.S. Geological Survey
mailing and physical address
600 Fourth Street South
St. Petersburg
FL
33701
USA
727 803-8747 x 3036
727 803-2030
mhansen@usgs.gov
https://sofia.usgs.gov/publications/maps/lakeokeebathy/index.html
satellite image showing Lake Okeechobee bathymetric contours
JPEG
The SFWMD provided partial funding for this data collection.
ASCII text files, JPEG and PDF contour maps
Hill, Gary W.
DeWitt, Nancy T; Hansen, Mark
2001
Elevation Contours of Lake Okeechobee
map
St. Petersburg, FL
U.S. Geological Survey
https://sofia.usgs.gov/publications/maps/lakeokeebathy/index.html
not available
unknown
Boat position measured using precise differential GPS receivers. Horizontal accuracy is +/- 4 cm (1.6in)
Dynamic elevation measured using precise differential GPS receivers. Vertical accuracy is +/- 8 cm (3 in).
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.
200109
Mark Hansen
U.S. Geological Survey
mailing and physical address
600 Fourth Street South
St. Petersburg
FL
33701
USA
727 803-8747 x 3036
727 803-2030
mhansen@usgs.gov
Added keywords section with USGS persistent identifier as theme keyword.
20201013
U.S. Geological Survey
VeeAnn A. Cross
Marine Geologist
Mailing and Physical
384 Woods Hole Road
Woods Hole
MA
02543-1598
508-548-8700 x2251
508-457-2310
vatnipp@usgs.gov
Lake Okeechobee
0.00000001
0.00000001
Decimal degrees
North American Datum of 1983
Geodetic Reference System 80
6378137
298.257
North American Vertical Datum of 1988
1.0,0.5
feet, meters
Explicit elevation coordinate included with horizontal coordinates
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
USGS personnel
Heather S.Henkel
U.S. Geological Survey
mailing address
600 Fourth St. South
St. Petersburg
FL
33701
USA
727 803-8747 ext 3028
727 803-2030
hhenkel@usgs.gov
raw data file (ptokeemft.xyz)
The data have no explicit or implied guarantees.
ASCII text
60
https://sofia.usgs.gov/publications/maps/lakeokeebathy/index.html#data
Data may be downloaded from the SOFIA website
none
Heather S.Henkel
U.S. Geological Survey
mailing address
600 Fourth St. South
St. Petersburg
FL
33701
USA
727 803-8747 ext 3028
727 803-2030
hhenkel@usgs.gov
Lake Okeechobee contour maps
The data have no explicit or implied guarantees.
Adobe Illustrator
unknown
AI-ft.zip is the feet version of the contour map and AI-m.zip is the meter version of the map.
The files are "zipped" and must be "unzipped" before use.
96
https://sofia.usgs.gov/publications/maps/lakeokeebathy/index.html#data
The contour maps may be downloaded from the SOFIA website.
JPEG
unknown
The maps are available in two versions - contours in feet and contours in meters
0.612
http://sofia.usgs.gov/publications/maps/lakeokeebathy/index.html
The maps may be downloaded from the SOFIA website
Adobe PDF
unknown
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
3.9
https://sofia.usgs.gov/publications/maps/lakeokeebathy/index.html
The maps may be downloaded from the SOFIA website
none
20201013
Heather Henkel
U.S. Geological Survey
mailing and physical address
600 Fourth Street South
St. Petersburg
FL
33701
USA
727 803-8747 ext 3028
727 803-2030
sofia-metadata@usgs.gov
Content Standard for Digital Geospatial Metadata
FGDC-STD-001-1998