Freshwater Flows to the East Coast

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator: Eric Swain

Publication_Date: 1998

Title: Freshwater Flows to the East Coast

Geospatial_Data_Presentation_Form: report

Online_Linkage: <http://sofia.usgs.gov/projects/hydraulic/>

Description:

Abstract:

Discharges through 10 selected coastal control structures in Broward and Palm Beach Counties and the 16 coastal structures in Miami-Dade County, Fla., Florida, are presently computed using the theoretical discharge-coefficient ratings developed from scale modeling, theoretical discharge coefficients, and some field calibrations whose accuracies for specific sites are unknown. To achieve more accurate discharge-coefficient ratings for the coastal control structures, field discharge measurements were taken with an Acoustic Doppler Current Profiler at each coastal control structure under a variety of flow conditions. These measurements were used to determine computed discharge-coefficient ratings for the coastal control structures under different flow regimes: submerged orifice flow, submerged weir flow, free orifice flow, and free weir flow. Theoretical and computed discharge-coefficient ratings for submerged orifice and weir flows were determined at the coastal control structures, and discharge ratings for free orifice and weir flows were determined at three coastal control structures. The difference between the theoretical and computed discharge-coefficient ratings varied from structure to structure.

Purpose:

A system of canals and levees has been constructed over the last century for the purpose of drainage, flood control, and aquifer discharge. Strategically placed control structures allow the water management officials to move water from inland areas during high-rainfall periods and retain water in dry periods. Freshwater discharged to tide through coastal structures not only affects the amount of water available for water supply in the lower east coast and the Everglades, but it also affects the biota in the Intracoastal Waterway and Biscayne Bay. Therefore, it is imperative that there be accurate ratings for these structures to predict the effects of various water restoration alternatives. Although these coastal structures are a pivotal part of the man-made system, the discharge through most of them is computed only from theoretical ratings. Actual field measurements are needed in order to determine if the theoretical ratings are adequate, and to develop more accurate ratings.

Stage measurements are made by the South Florida Water Management District (SFWMD) or the USGS at the east coast structures. The flows through the coastal structures in Miami-Dade, Broward, and Palm Beach counties can be computed by developing stage-discharge ratings from field measurements of flow, stage, and structure operations. Although theoretical ratings exist for the structures, no check as to the accuracy of these ratings has been made. In order to develop ratings from field measurements, discharge measurements must be made at the structure simultaneously with water level and structure operation measurements. Difficulties in making accurate discharge measurements arise from the slow flows and non-standard velocity profiles in south Florida canals. The Acoustic Doppler Current Profiler (ADCP), which uses the Doppler shift in acoustic signals to determine water velocity and compute discharge, is ideal for measurements in slow and spatially varying velocity fields. Statistical techniques were used to determine the best-fit ratings for the structures and error analysis of the ratings.

The objective of this study was to determine discharge ratings for 10 coastal hydraulic control structures (7 in eastern Broward and 3 in southeastern Palm Beach counties as well as for 16 coastal hydraulic control structures in eastern Miami-Dade county.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 199411

Ending_Date: 199609

Currentness_Reference: ground condition

Status:

Progress: Complete

Maintenance_and_Update_Frequency: None planned

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -80.45

East_Bounding_Coordinate: -80.05

North_Bounding_Coordinate: 26.65

South_Bounding_Coordinate: 25.28

Keywords:

Theme:

Theme_Keyword_Thesaurus: none

Theme_Keyword: freshwater discharge

Theme_Keyword: surface water

Theme_Keyword: accoustic doppler current profiler

Theme_Keyword: hydrology

Theme_Keyword: control structures

Theme:

Theme_Keyword_Thesaurus: ISO 19115 Topic Category

Theme_Keyword: environment

Theme_Keyword: inlandWaters

Theme_Keyword: 007

Theme_Keyword: 012

Place:

Place_Keyword_Thesaurus:

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:

Place_Keyword_Thesaurus:

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:

Place_Keyword_Thesaurus:

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: Broward County

Place_Keyword: Miami-Dade County

Place_Keyword: Palm Beach County

Place:

Place_Keyword_Thesaurus: USGS Geographic Names Information System

Place_Keyword: Intracoastal Waterway

Place_Keyword: Biscayne Bay

Place:

Place_Keyword_Thesaurus: none

Place_Keyword: Central Everglades

Place_Keyword: South East Coast

Place_Keyword: Florida Keys

Access_Constraints: none

Use_Constraints: none

Point_of_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Eric D. Swain

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical

Address: 3110 SW 9th Avenue

City: Ft. Lauderdale

State_or_Province: FL

Postal_Code: 33315

Country: USA

Contact_Voice_Telephone: 954 377-5925

Contact_Facsimile_Telephone: 954 377-5901

Contact_Electronic_Mail_Address: edswain@usgs.gov

Browse_Graphic:

Browse_Graphic_File_Name: <http://sofia.usgs.gov/publications/fs/123-96/>

Browse_Graphic_File_Description:

coastal hydraulic control structures in eastern Miami-Dade County

Browse_Graphic_File_Type: GIF

Data_Set_Credit: Project personnel included Amit Kapadia and Gina Tillis

Native_Data_Set_Environment:

The data are contained in tables in published Water-Resources Investigations Reports

Cross_Reference:

Citation_Information:

Originator: Eric D. Swain

Publication_Date: 1996

Title:

Quantifying Freshwater Discharge for Coastal Hydraulic Structures in Eastern Dade County, Florida

Geospatial_Data_Presentation_Form: fact sheet

Series_Information:

Series_Name: USGS Fact Sheet

Issue_Identification: 123-96

Publication_Information:

Publication_Place: Tallahassee, FL

Publisher: U.S. Geological Survey

Online_Linkage: <http://sofia.usgs.gov/publications/fs/123-96/>

Data_Quality_Information:

Logical_Consistency_Report:

The same measurement techniques were used at all the control structures

Completeness_Report:

all concurrent water-level, gate opening, and discharge data were collated and analyzed with a spreadsheet program

Lineage:

Process_Step:

Process_Description:

Most of the measurements at the Broward and Palm Beach County sites were completed. The factsheet on the Miami-Dade County measurements was approved.

Process_Date: 199609

Process_Step:

Process_Description:

All measurements were completed. The report for Broward and Palm Beach counties is in work. The report on Miami-Dade County measurements was approved.

Process_Date: 199709

Process_Step:

Process_Description:

The report for the Broward and Palm Beach counties will be completed and approved for release. Numerical models will be created to describe the flow patterns at selected site in Miami-Dade, Broward, and Palm Beach counties that produced anomalous data. Models will be designed by January 1998 and calibrated by May 1998. In addition, analysis will be conducted on transitional flow, the flow regime that exists between orifice and weir flows. Additional measurements can be made if data appears lacking for any structure. The report on the numerical modeling is anticipated for completion by September.

Process_Date: 199809

Process_Contact:

Contact_Information:

Contact_Person_Primary:

Contact_Person: Eric D. Swain

Contact_Organization: U.S. Geological Survey

Contact_Address:

Address_Type: mailing and physical

Address: 3110 SW 9th Avenue

City: Ft. Lauderdale

State_or_Province: FL

Postal_Code: 33315

Country: USA

Contact_Voice_Telephone: 954 377-5925

Contact_Facsimile_Telephone: 954 377-5901

Contact_Electronic_Mail_Address: edswain@usgs.gov

Spatial_Data_Organization_Information:

Indirect_Spatial_Reference: east coast of Florida

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.001

Longitude_Resolution: 0.001

Geographic_Coordinate_Units: Decimal degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137

Denominator_of_Flattening_Ratio: 298.257

Entity_and_Attribute_Information:

Overview_Description:

Entity_and_Attribute_Overview:

Appendix I of WRIR 98-4007 lists data for flood discharge characteristics for the coastal structures in Broward and Palm Beach counties. The data include structure, discharge rate in cubic feet/sec, degree of protection as SPF in percent, headwater elevation in feet, tailwater elevation in feet, flow regime (SWF-submerged weir flow, SOF-submerged orifice flow, FWF-free weir flow, or Pumped), for Design Flood and Structure Protection Design. Appendix II lists structural data for the coastal control structures including structure number, weir crest (net length in feet, and elevation in feet below land surface), service bridge elevation in feet, water-surface elevation in feet, number and type of gates, and size of gates in feet by height and width.

Appendix I of WRIR 97-4079 lists data for flood discharge characteristics for the (Miami-)Dade County coastal structures. The data include structure, discharge rate in cubic feet/second, headwater elevation in feet, tailwater elevation in feet and flow regime for Design and Special Project Flood. Appendix II lists structural data for the coastal control structures including structure number, weir crest (net length in feet, and elevation in feet below land surface), service bridge elevation in feet, water-surface elevation in feet, number and type of gates, and size of gates in feet for diameter or height by width, number of barrels, size of barrels in inches, and length of barrels in feet.

Entity_and_Attribute_Detail_Citation:

Determining Discharge-Coefficient Ratings for Selected Control Structures in Broward and Palm Beach Counties, Florida, 1998, Tillis, G. M. and Swain, E. D., USGS Water-Resources Investigations Report 98-4007

Determining discharge-coefficient ratings for coastal structures in Dade County, Florida, 1997, Swain, E.D.; Kapadia, Amit; Kone, Siaka; and others, U.S. Geological Survey Water-Resources Investigations Report 97-4079

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS Florida Webmasters

Contact_Address:

Address_Type: mailing and physical address

Address: 3110 SW 9th Avenue

City: Ft. Lauderdale

State_or_Province: FL

Postal_Code: 33315

Country: USA

Contact_Voice_Telephone: not available

Contact_Electronic_Mail_Address: GS-W-FL_Webmasters@usgs.gov

Resource_Description: WRIR 98-4007

Distribution_Liability: No warrantees are implied or explicit for the data

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: Adobe pdf

Transfer_Size: 0.785

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://fl.water.usgs.gov/Abstracts/wri98_4007_tillis.html>

Access_Instructions: The report may be downloaded from USGS Publications Warehouse

Fees: none

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USGS Publications Warehouse

Contact_Address:

Address_Type: mailing and physical address

Address: 8505 Research Way

City: Middleton

State_or_Province: WI

Postal_Code: 53562

Country: USA

Contact_Voice_Telephone: 608 821-3859

Contact_Electronic_Mail_Address: mccullou@usgs.gov

Contact_Instructions: log onto <http://infotrek.er.usgs.gov/pubs/>

Resource_Description: WRIR 97-4079

Distribution_Liability: No warrantees are implied or explicit for the data

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: DJVU

File_Decompression_Technique:

Viewing the report as .DJVU requires the use of a free plug-in from Lizardtech

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://pubs.er.usgs.gov/usgspubs/wri/wri974079>

Access_Instructions:

The report may be downloaded and viewed in DJVU format or as a group of images

Fees: none

Metadata_Reference_Information:

Metadata_Date: 20070725

Metadata_Contact:

Contact_Information:

Contact_Person_Primary:

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

U.S. Department of the Interior, U.S. Geological Survey
Comments and suggestions? Contact: Heather Henkel - Webmaster
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