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Flow Velocity and Water Level Transects

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Metadata:


Identification_Information:
Citation:
Citation_Information:
Originator:
Dan Nowacki

Ray Schaffranek (retired) Marvin A. Franklin (retired)

Publication_Date: 2005
Title: Flow Velocity and Water Level Transects
Geospatial_Data_Presentation_Form: spreadsheet
Online_Linkage: <https://sofia.usgs.gov/projects/flow_velocity/>
Description:
Abstract:
The sheet flow over the Buttonwood Embankment during periods of high flow is an unknown element of the water budget for the Everglades. An ongoing project to estimate the flows over the embankment through modeling will require water-level and water velocity data measured at the embankment to accurately estimate simulated flows over this physical land feature. The actual measurement of water velocities and depths at the embankment would greatly improve the model calibration. Although it is virtually impossible to conventionally measure flow over the entire embankment, water depths and velocities at known points along the embankment, combined with the detailed topography of the embankment being developed in another ongoing project, should allow a much better estimate of the total flow than presently available.
Purpose:
The objective of the project is to make the best possible estimate of the flow velocities and water depths across Buttonwood Embankment during high flow for use as model input for an ongoing project being conducted in the USGS-WRD office in Miami. Estimates will be used to provide management alternatives and will create salinity concentrations suitable for ecologic integrity.
Supplemental_Information:
This project has been integrated into the TIME project. The project was started by Marvin Franklin
Time_Period_of_Content:
Time_Period_Information:
Multiple_Dates/Times:
Single_Date/Time:
Calendar_Date: 199707
Single_Date/Time:
Calendar_Date: 199709
Single_Date/Time:
Calendar_Date: 199711
Single_Date/Time:
Calendar_Date: 199807
Currentness_Reference: ground condition
Status:
Progress: Complete
Maintenance_and_Update_Frequency: None planned
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -80.4
East_Bounding_Coordinate: -80.2
North_Bounding_Coordinate: 25.7
South_Bounding_Coordinate: 25.5
Keywords:
Theme:
Theme_Keyword_Thesaurus: none
Theme_Keyword: velocity
Theme_Keyword: flow
Theme_Keyword: cross section
Theme_Keyword: hydrology
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, D.C., 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, D. C., 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: Miami-Dade County
Place:
Place_Keyword_Thesaurus: none
Place_Keyword: Central Everglades
Place_Keyword: Buttonwood Embankment
Temporal:
Temporal_Keyword_Thesaurus: none
Temporal_Keyword: periodic
Access_Constraints: none
Use_Constraints: none
Point_of_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Dan Nowacki
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing address
Address: 430 National Center
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA
Contact_Voice_Telephone: 703 648-5467
Contact_Electronic_Mail_Address: dnowacki@usgs.gov
Data_Set_Credit:
Velocity data and cross section data was collected by Paul Meadows, Darlene Blum, Mark Stephens, Greg Donley, Kenny Kalan, Don Goin, Gina Tillis, Eric Swain, John Pittman, Alex Gallagher, James Dubuisson, Harry Jenter, and Lavetra Sloan.
Native_Data_Set_Environment: Excel spreadsheets, Access database
Cross_Reference:
Citation_Information:
Originator: Tillis, G. M.
Publication_Date: 2001
Title:
Measuring Taylor Slough boundary and internal flows, Everglades National Park, Florida
Geospatial_Data_Presentation_Form: report
Series_Information:
Series_Name: USGS Open-File Report
Issue_Identification: 01-225
Publication_Information:
Publication_Place: Tallahassee, FL
Publisher: U.S. Geological Survey
Online_Linkage: <http://fl.water.usgs.gov/Abstracts/ofr01_225_tillis.html>

Data_Quality_Information:
Logical_Consistency_Report:
Velocity and flow were collected for Transects One, Two, Three, and the Stationary Transect. Velocity only was collected for Transect Four and C-11. Discharge measurements made with conventional meters are available in the Culverts dataset.
Completeness_Report:
Data was collected in July, September, and November 1997 and July 1998. Not all sites have data for all collection dates. See the individual datasets for available data.
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report:
Global Positioning System (GPS) instrumentation established horizontal sampling locations in North American Datum of 1983 (NAD83) coordinates. Field notes included the latitude and longitude coordinates, GPS drift, and description of distinctive features (nearby staff gages and cypress heads). These coordinates were converted to UTM coordinates (NAD83, Zone 17) for reporting and modeling purposes.
Lineage:
Process_Step:
Process_Description:
Measurement sites were restricted to areas along established airboat trails. Initially internal flows were measured across three transect lines (T1, T2, and T3) bisecting the Taylor Slough Basin from east to west as well as a transect along the centerline of the axis of the slough. In November 1997, a fourth transect (T4) was added to the data collection effort, connecting transects T2 and T3 along a north-south airboat trail. Three-dimensional velocity measurements were conducted at the transect sites using ADVs. Water depth, water-quality parameters, litter-layer thickness, weather conditions, site description, site location, bottom conditions, and vegetative cover were recorded concurrently with ADV measurements. Individual velocity sampling sites were chosen to be representative of the vegetation type and density as well as water depth in the surrounding area.

Four intensive data-collection trips into the Taylor Slough Basin were conducted during July, September, and November 1997 and July 1998. These trips coincided with precipitation events that produced sufficient water levels for airboat access and covered a wide range of water levels and flow conditions. The ADV meters provided the required levels of accuracy in flow-velocity measurements while enabling rapid collection of multiple time-series of flow data at remote sites. Concurrently, flow measurements were made along bordering road culverts and under L-31W and Taylor Slough bridges. At sites where the use of acoustic instruments was impractical, vertical-axis current meters were used to measure water velocity.

Water-quality meters (collected with all velocity profiles) collected data at middepth and measured the temperature, specific conductance, salinity, dissolved oxygen, and pH. Measured temperature and salinity values were use in computation of water velocity. All water-quality meters were calibrated at the beginning of each day.

After positioning the ADV for a velocity measurement with minimal disturbance to the surrounding vegetation and flow field, the hydrographer retreated from the probe and the presumed flow path. About 2 minutes was allowed for the sample area to return to equilibrium before starting a velocity measurement. Measurement bursts lasted 120 seconds, at a 10 hertz sampling rate, and produced time-series measurements of 1200 pints at the appropriate depths in the water column.

Process_Date: 199807
Process_Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Dan Nowacki
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing address
Address: 430 National Center
City: Reston
State_or_Province: VA
Postal_Code: 20192
Country: USA
Contact_Voice_Telephone: 703 648-5467
Contact_Electronic_Mail_Address: dnowacki@usgs.gov

Spatial_Data_Organization_Information:
Direct_Spatial_Reference_Method: Point

Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Planar:
Grid_Coordinate_System:
Grid_Coordinate_System_Name: Universal Transverse Mercator
Universal_Transverse_Mercator:
UTM_Zone_Number: 17
Transverse_Mercator:
Scale_Factor_at_Central_Meridian: 0.9996
Longitude_of_Central_Meridian: -81
Latitude_of_Projection_Origin: 0
False_Easting: 500000
False_Northing: 0
Planar_Coordinate_Information:
Planar_Coordinate_Encoding_Method: Coordinate Pair
Coordinate_Representation:
Abscissa_Resolution: 0.001
Ordinate_Resolution: 0.001
Planar_Distance_Units: meters
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

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: Flow and Velocity data
Distribution_Liability: The data have no explicit or implied guarantees.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name: Excel spreadsheets
Format_Information_Content:
There are Excel spreadsheets for the Taylor Slough sites, Transects One, Two, Three, and Four, C-111 Transect, Stationary Transect, and Culverts.
Transfer_Size: 12
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://sofia.usgs.gov/exchange/franklin/franklinflow.html>
Access_Instructions: Data may be downloaded from the SOFIA website.
Digital_Form:
Digital_Transfer_Information:
Format_Name: Access 2000
Format_Information_Content: The database contains the data for the Taylor Slough sites.
Transfer_Size: 5.2
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://sofia.usgs.gov/exchange/franklin/franklinflow.html>
Access_Instructions: Data may be downloaded from the SOFIA website.
Digital_Form:
Digital_Transfer_Information:
Format_Name: html
Transfer_Size: 0.3
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name: <https://sofia.usgs.gov/exchange/franklin/franklinflow.html>
Access_Instructions: Data may be downloaded from the SOFIA website.
Fees: none

Metadata_Reference_Information:
Metadata_Date: 20070323
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

This page is <https://sofia.usgs.gov/metadata/sflwww/flow_velocity.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 Fri Mar 23 16:17:21 2007