WEST FLORIDA SHELF OPENFILE: HTM FILES
  aview. htm; GIS files
  bathy2.htm; Regional Gulf of Mexico Bathymetry
  bathy3.htm; West Florida Shelf Bathymetry.
  charty.htm; West Florida Shelf Sidescan and Sediment Charts
  comp.htm; Composite sidescan mosaic.
  contact.htm; For more Information / Questions, Comments
  CLICK_ME.htm; Start Here
  interp.htm; Interpretation (text).
  sed_dat..htm; Sediment sample data
  sed_map.htm; Sample Locations
  seis_loc; Seismic Record location figure
  seismic; Seismic Record Index (Thumbnails)
  ssclips.htm; Features in the West Florida Shelf Area.
  ssloc.htm; Location of sidescan surveys
  table.htm; Sediment Database
  tocc.htm; Table of Contents (this page)
  viewim.htm; Interpretation of West Florida Shelf Geology (graphic)
  westy.htm; Study area location and links
  wfsall.htm; Samples and depths (graphic)
  wfszoom.htm; Closeup of wfsall page (graphic)

  Contents of files linked to sed_dat.htm
  WFLsamps.txt -- West Florida Shelf sample data (text format). Sample  identification numbers, latitude, longitude, depth, sediment descriptions, CaCO3 content, and percentages of gravel, sand, silt, and clay. Header
  WFLsamps.xls -- West Florida Shelf sample data (Excel format). Sample identification numbers, latitude, longitude, depth, sediment descriptions, CaCO3 content, and percentages of gravel, sand, silt, and clay. Header
  WFLsamps.csv -- West Florida Shelf sample data (Comma delimited format). Sample identification numbers, latitude, longitude, depth, sediment descriptions, CaCO3 content, and percentages of gravel, sand, silt, and clay. Header
Interactive Sediment Map
Table of sediment statistics
Sediment Data Plots
%Carbonate vs. Water Depth (m)
%Silt vs. Water Depth (m)
%Carbonate vs. %Silt
Sediments charts and composite mosaic
Sediment Location Map


Files linked to aview.htm

A
RCVIEW VERSION 3.0a PROJECT FILE
westfl.apr
This file is located in the gis directory. Mac users using Arcview 3.0 may need to rename some shapefiles and create a new project file.
*An Arcview project file (*.apr) doesn't contain the actual data that you use in ArcView, such as spatial data like shapefiles and ARC/INFO coverages, and tabular data like dBASE files. Instead, a project contains references to the location of these data sources on disk. In this way, the same data can be used in any number of projects without duplication.

SPATIAL DATA FILE DESCRIPTIONS
COORDINATE SYSTEMS: First file listed is referenced to UTM Zone 16, using the WGS84 datum. File in parentheses is the same data referenced to a Geographic (lat/lon) coordinate system.
link to downloadable files (listed below)
awsadutm.shp (awsadchap.shp)
Coastline file. Polygon coverage (Source: Arcview sample file)
Bath12utm (Bath12geo.shp)
Bathymetry. This data was used to generate the contours files found on this CD-ROM. Points. Data Source:National Geophysical Data Center's (NGDC) 1998 Hydrographic Survey CD-ROM Set (Version 4). National Ocean Service (NOS) Hydrographic Data are integrated with the NGDC's GEOphysical DAta System (GEODAS).
Chap97utm.shp (Chap97pt.shp)
Point file that follows the trackline. Time is included in the attribute table. File was created in Mapinfo and converted to shapefile format using an avenue script.
Chapbathutm.shp (Chap97005_bathy.shp)
Bathymetry generated using data from the Chapman 1997 cruise. USGS bathymetry. Line. (credit: R. Thieler, USGS Woods Hole)
Chaptrkutm.shp (Chap97005_trk.shp)
Trackline from the 1997 Chapman cruise. Line. (credit: R. Thieler, USGS Woods Hole)
Compmap.tfw (compmapg.tfw)
Tiff world file containing referencing information for the composite mosaic of the same name. This file contains ascii text and may be viewed using any text editor.
Compmap.tif (compmapg.tif)
Composite mosaic image of the West Florida Shelf study area. This tif weighs in at around 110 megabytes. The tfw file of the same name needs to reside in the same directory to be referenced when viewed using the software of choice. Image.
Contour10m.shp (cnt10geo_mod)
Bathymetric contours at 10 meter intervals generated from NOS bathy data and smoothed by hand. The contours were created using Arcview 3.0a Spatial Analyst with a Nearest Neighbor interpolation method. Line.
Hard_bottom_region.shp (Hbtmgeo.shp)
Hard bottom region interpreted from the sidescan sonar data. Polygon coverage created using Mapinfo and converted to a shapefile.
High_silt.shp (Hsiltgeo.shp)
Silty sand areas determined by backscatter intensity from the sidescan sonar data. Entire sidescan sonar image classified as either silty sand or medium to coarse sand. Polygon coverage created using Mapinfo and converted to a shapefile.
Lowsilt2.shp (Lsiltgeo.shp)
Medium to coarse sand areas determined by backscatter intensity from the sidescan-sonar data. Entire sidescan-sonar image classified as either silty sand or medium to coarse sand. Polygon coverage created using Mapinfo and converted to a shapefile.
manmade_region.shp (Mnmadgeo.shp)
Features interpreted as possibly manmade (?) objects (trash, shipwrecks, unknowns) from the sidescan-sonar data. These features are small and may not be apparent at the scale the other data sets are viewed. Some zooming in or out may be required. Polygon coverage created using Mapinfo and converted to a shapefile.
Outcrop_region.shp (Outcrgeo.shp)
Intepretation of high relief outcrop region from sidescan-sonar. File was created in Mapinfo and converted to shapefile format using an Avenue script. Polygons.
Pits_region.shp (Pitsgeo.shp).
Pits (fish pits?) identified from the sidescan-sonar data. File was created in Mapinfo and converted to shapefile format using an avenue script. Polygons.
sedwave2.shp (Sedwvgeo.shp)
Sand waves occurring on the shelfbreak. Polygons.
profile_loc.shp (profiles.shp)
Locations of selected seismic profiles. These profiles are included on this CD-ROM (see seismic.htm). File was created in Mapinfo and converted to shapefile format using an avenue script. Lines
shputmmt.met (shapemeta.met)
FGDC compliant metadata for the shapefiles listed above.ASCII File
wfsutm (wfs3.shp)
West Florida Shelf sediment data. Point coverage generated using ARC/INFO from ascii text, then joined with a dbase file (attributes) and saved as a shapefile.Points.

GIS DATA - MAPINFO FILES
COORDINATE SYSTEMS: The following Mapinfo files are referenced to UTM Zone 16, using the WGS84 datum unless otherwise noted
link to downloadable files (listed below)
Chap97005_bathy.mif (geographic projection, not UTM)
Bathymetry generated using data from the Chapman 1997 cruise. USGS bathymetry. (credit: R. Thieler, USGS Woods Hole)
hard_bottom_region.mif
Hard bottom region interpreted from the sidescan-sonar data. Polygons.
high_silt.mif
Silty sand areas determined by backscatter intensity from the sidescan-sonar data. Entire sidescan-image classified as either silty sand or medium to coarse sand. Polygons.
low_silt.mif
Medium to coarse sand areas determined by backscatter intensity from the sidescan-sonar data. Entire sidescan-sonar image classified as either silty sand or medium to coarse sand. Polygons.
manmade_region.mif
Features interpreted as possibly manmade (?) objects (trash, shipwrecks, unknowns) from the sidescan-sonar data. These features are small and may not be apparent at the scale the other data sets are viewed. Some zooming in or out may be required. Polygons.
outcrop_region.mif
Intepretation of high relief outcrop region from sidescan-sonar. Polygons.
pits_region.mif
Pits (fish pits?) identified from the sidescan-sonar data. Polygons
profile_loc.mif
Locations of selected seismic profiles.These profiles are included on this CD-ROM (see seismic.htm).Lines
sedwave2.mif
Sand waves occurring on the shelfbreak. Polygons
 
View image list
 

By Peter R. Briere (1), Kathryn M. Scanlon (1), Christopher T. Gledhill (2), Christopher C. Koenig (3), and Gary Fitzhugh (4)

1) U.S. Geological Survey
Woods Hole Field Center
384 Woods Hole Road
Woods Hole, MA 02543-1598

2) National Marine Fisheries Service
3209 Frederic Street
Pascagoula, MS 39568-1207

3) Institute for Fishery Resource Ecology (FSU/NMFS)
Department of Biological Science
Florida State University
Tallahassee, FL 32306-1100

4) National Marine Fisheries Service
Southeast Fisheries Science Center
Panama City Laboratory
3500 Delwood Beach Road
Panama City, FL 32408

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