CERCTM29: USACE ICONS Cores, Miami to Palm Beach, Florida

Frequently-anticipated questions:

• What does this data set describe?
  1. How should this data set be cited?
  2. What geographic area does the data set cover?
  3. What does it look like?
  4. Does the data set describe conditions during a particular time period?
  5. What is the general form of this data set?
  6. How does the data set represent geographic features?
  7. How does the data set describe geographic features?
• Who produced the data set?
  1. Who are the originators of the data set?
  2. Who also contributed to the data set?
  3. To whom should users address questions about the data?
• Why was the data set created?
• How was the data set created?
  1. From what previous works were the data drawn?
  2. How were the data generated, processed, and modified?
  3. What similar or related data should the user be aware of?
• How reliable are the data; what problems remain in the data set?
  1. How well have the observations been checked?
  2. How accurate are the geographic locations?
  3. How accurate are the heights or depths?
  4. Where are the gaps in the data? What is missing?
  5. How consistent are the relationships among the data, including topology?
• How can someone get a copy of the data set?
  1. Are there legal restrictions on access or use of the data?
  2. Who distributes the data?
  3. What's the catalog number I need to order this data set?
  4. What legal disclaimers am I supposed to read?
  5. How can I download or order the data?
• Who wrote the metadata?

Title: CERCTM29: USACE ICONS Cores, Miami to Palm Beach, Florida

Abstract:

The Continental Shelf bordering southeastern Florida between Palm Beach and Miami was surveyed by CERC to locate and evaluate sand deposits potentially useable for shore protection projects. Survey data covered 141 square miles of that part of the Continental Shelf between 15- and 100-foot depths, and consisted of seismic reflection profiles and sediment cores from the sea floor. South of Boca Raton to Miami, much of the shelf is rocky with a thin sediment veneer. Relatively thick deposits of sediment have accumulated locally in troughs formed between low reef-like ridges lying parallel to shore. Shelf sediments south of Boca Raton consist almost entirely of sand-size calcareous skeletal fragments. North of Boca Raton to Palm Beach, most of the shelf is overlain by a thick blanket deposit of homogeneous fine-to-medium, gray sand about half of which consists of quartz particles and the remainder of calcareous skeletal fragments. About 200 million cubic yards of sand-size sediment occurs on the shelf south of Boca Raton. Although generally suitable for beach fill in terms of size, degradation of size by abrasion and fragmentation of the delicate particles may occur in the shore environment. More than 380 million cubic yards of sand-size sediment lies on the shelf north of Boca Raton. However, because of its fine size, this sand is not considered ideally suited for beach fill. In terms of potential as beach sand, sand-size sediments from the shelf bordering southeastern Florida is of marginal quality.

1. How should this data set be cited?

   Reid, Jamey M. , 2005, CERCTM29: USACE ICONS Cores, Miami to Palm Beach, Florida:, U.S. Geological Survey, Coastal and Marine Geology Program, Woods Hole Science Center, Woods Hole, MA.

   Online Links:

2. What geographic area does the data set cover?

   West_Bounding_Coordinate: -80.12319

   East_Bounding_Coordinate: -80.02321

   North_Bounding_Coordinate: 26.70491

   South_Bounding_Coordinate: 26.04548

3. What does it look like?

   tm29.jpg (JPEG)

   Image map showing extent and distribution of data layer coverage

4. Does the data set describe conditions during a particular time period?

   Calendar_Date: 1969

   Currentness_Reference: publication date

5. What is the general form of this data set?

   Geospatial_Data_Presentation_Form: document

6. How does the data set represent geographic features?
   1. How are geographic features stored in the data set?

      This is a Vector data set. It contains the following vector data types (SDTS terminology):

      • Entity point (31)

   2. What coordinate system is used to represent geographic features?

      Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.000000. Longitudes are given to the nearest 0.000000. Latitude and longitude values are specified in Decimal degrees.

      The horizontal datum used is North American Datum of 1927.
      The ellipsoid used is Clarke 1866.
      The semi-major axis of the ellipsoid used is 6378206.400000.
      The flattening of the ellipsoid used is 1/294.978698.
      

7. How does the data set describe geographic features?

   tm29

   FID

   Internal feature number. (Source: ESRI)

   Sequential unique whole numbers that are automatically generated.

   Shape

   Feature geometry. (Source: ESRI)

   Coordinates defining the features.

   STATION

   LONGITUDE

   LATITUDE

   Entity_and_Attribute_Overview:

   Sample identifiers, navigation, core descriptions, and grain size statistics form the USACOE ICONS program project from Miami to Palm Beach, Florida. Some enries for top and bottom depths were originally reported as "top." In the digital files, "top" was changed and defined as 0-0.02 meters.

1. Who are the originators of the data set? (may include formal authors, digital compilers, and editors)
   • Jamey M. Reid

2. Who also contributed to the data set?

   Pleae review the cross reference information for the original data set credit to Williams (1969). Emma Mitchell and Jamey M. Reid for entering the data from the source report.

3. To whom should users address questions about the data?

   Jeff Williams
   U.S. Geological Survey
   Geologist
   384 Woods Hole Rd.
   Woods Hole, MA 02543-1598
   

   (508) 548-8700 x2383 (voice)
   (508) 457-2310 (FAX)
   jwilliams@usgs.gov
   

The purpose of this datalayer is to release a digital version of the coring data from a U. S. Army Corp of Engineers (USACOE) Inner Continental Shelf (ICONS) program project from Miami to Palm Beach, Florida

1. From what previous works were the data drawn?

   USACOE TM 29 (source 1 of 1)

   Williams, S.J., 1969, Geomorophology and sediments of the nearshore continental shelf Miami to Palm Beach, Florida: TM 29, USACOE Coastal Engineering and research Center, Washington D.C..

   Type_of_Source_Media: paper

   Source_Contribution:

   Sample identifiers, navigation, core descriptions, and grain-size statistics were hand-entered from report TM29 to create an Excel spreadsheet file.

2. How were the data generated, processed, and modified?

   Date: 19-Jun-2002 (process 1 of 2)

   The source information was entered into an Excel spreadsheet. Additional fields were added for project identification purposes. The table information was exported and saved as an ASCII text file.

   Person who carried out this activity:
   

   Jamey M. Reid
   U.S. Geological Survey
   IT Specialist (Data Management)
   384 Wooods Hole Road
   Woods Hole, MA 02543-1598
   USA
   

   (508) 548-8700 x2204 (voice)
   (508) 457- 2310 (FAX)
   jreid@usgs.gov
   

   Data sources used in this process:

   • CERCTM29.xls

   Data sources produced in this process:

   • CERCTM29.txt

   Date: 14-Jun-2004 (process 2 of 2)

   Digital data were hand formatted into dbSEABED data entry structure, then filtered and data-mined through dbSEABED software (version: db9_MNEr.bas)

   Person who carried out this activity:
   

   Viness Ubert
   U.S. Geological Survey
   Physical Science Technician
   384 Woods Hole Road
   Woods Hole, MA 02543-1598
   USA
   

   (508) 548-8700 x2238 (voice)
   (508) 457-2310 (FAX)
   vubert@msn.com
   

   Data sources used in this process:

   • CERCTM29.txt

3. What similar or related data should the user be aware of?

   S.J.Williams, 1969, Gemomorophology and sediments of the nearshore continental shelf Miami to Palm Beach, Florida: TM 29, USACOE, Coastal Engineering and Research Center, Washington, D.C.

1. How well have the observations been checked?

   All attributes were entered and checked by the compilers in a consistent manner.

2. How accurate are the geographic locations?

   Navigation was by LORAN C. Typical nonrepetitve accuracy for LORAN off Florida is about +/- 200 meters

3. How accurate are the heights or depths?

4. Where are the gaps in the data? What is missing?

   Core locations 32 vibracores with unique field ids; grain size statistics are provided for 183 analyses. There descriptions for 77 analyses. Five cores had no recovery and were supplied in the original report without longitude and latitude.

5. How consistent are the relationships among the observations, including topology?

   No additional checks for topological consistency were performed on this data set.

Are there legal restrictions on access or use of the data?

Access_Constraints: None

Use_Constraints: None

1. Who distributes the data set? (Distributor 1 of 1)

   Jamey M. Reid
   U.S. Geological Survey
   IT Specialist (Data Management)
   384 Woods Hole Road
   Woods Hole, MA 02543-1598
   USA
   

   (508) 548-8700 x2204 (voice)
   (508) 457-2310 (FAX)
   jreid@usgs.gov
   

2. What's the catalog number I need to order this data set?

   Marine Aggregate Resources and Processes: CERCTM29

3. What legal disclaimers am I supposed to read?

   Although this data set has been used by the U.S. Geological Survey (USGS), no warranty, expressed or implied, is made by the USGS as to the accuracy of the data and/or related materials. The act of distribution shall not constitute any such warranty, and no responsibility is assumed by the USGS in the use of these data or related materials. Trade, firm, or product names and other references to non-USGS products and services are provided for information only and do not constitute endorsement or warranty, express or implied, by the USGS, USDOI, or U.S. Government, as to their suitability, content, usefulness, functioning, completeness, or accuracy

4. How can I download or order the data?
   • Availability in digital form:

     Data format:	ArcView shapefile (version 3.2) ASCII text Size: 0.263

   • Cost to order the data: None

5. What hardware or software do I need in order to use the data set?

   The original data is available in ASCII text format

Dates:

Last modified: 30-Jun-2004
Last Reviewed: 03-May-2005

Metadata author:

U.S. Geological Survey
c/o Viness Ubert
Physical Science Technician
384 Woods Hole Road
Woods Hole, MA 02543-1598
USA

(508) 548-8700 x2238 (voice)
(508) 457-2310 (FAX)
vubert@usgs.gov

Metadata standard:

FGDC Content Standards for Digital Geospatial Metadata (FGDC-STD-001-1998)

Metadata extensions used:

• <http://www.esri.com/metadata/esriprof80.html>