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Water Quality Data (Canal and Wetland)

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Frequently-anticipated questions:


What does this data set describe?

Title: Water Quality Data (Canal and Wetland)
Abstract:
Five basic water-quality parameters (temperature, pH, specific conductance, dissolved oxygen, and salinity) were collected at each site having sufficient depth
Supplemental_Information:
This project ended in 1999.

For additional information about this project contact either: Eric Swain, edswain@usgs.gov or Chris Langevin, langevin@usgs.gov

  1. How should this data set be cited?

    Raymond W. Schaffranek (retired), 2005, Water Quality Data (Canal and Wetland).

    Online Links:

  2. What geographic area does the data set cover?

    West_Bounding_Coordinate: -80.6
    East_Bounding_Coordinate: -80.4
    North_Bounding_Coordinate: 25.35
    South_Bounding_Coordinate: 25.25

  3. What does it look like?

    <https://sofia.usgs.gov/geer/2000/posters/c111/images/locationmapx.jpg> (JPEG)
    location of study area
    <https://sofia.usgs.gov/exchange/schaffranek/locationQW.html> (JPEG)
    water quality data location maps for 1997 sites

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

    Calendar_Date: 23-Sep-1997
    Currentness_Reference: ground condition

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

    Geospatial_Data_Presentation_Form: maps and data

  6. How does the data set represent geographic features?

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

      Indirect_Spatial_Reference: Everglades National Park

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

      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 coordinates are encoded using Coordinate Pair
      Abscissae (x-coordinates) are specified to the nearest 1
      Ordinates (y-coordinates) are specified to the nearest 1
      Planar coordinates are specified in meters

      The horizontal datum used is North American Datum of 1983.
      The ellipsoid used is Geodetic Reference System 80.
      The semi-major axis of the ellipsoid used is 6378137.
      The flattening of the ellipsoid used is 1/298.257.

  7. How does the data set describe geographic features?

    Entity_and_Attribute_Overview:
    Parameters recorded include temperature (degrees C), salinity (ppt), conductivity (mS/cm) for all collection dates. In 1997 dissolved oxygen (mg/l) and pH were also recorded
    Entity_and_Attribute_Detail_Citation: USGS personnel


Who produced the data set?

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

    • Raymond W. Schaffranek (retired)

  2. Who also contributed to the data set?

    Data were collected by Marvin Franklin, Gina Tillis, Paul Meadows, Darlene Blum, Harry Jenter, and Ray Schaffranek.

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

    Eric D. Swain
    U.S. Geological Survey
    3110 SW 9th Avenue
    Ft. Lauderdale, FL 33315
    USA

    954 377-5925 (voice)
    954 377-5901 (FAX)
    edswain@usgs.gov


Why was the data set created?

A complex network of canals, levees, and control structures, designed to control flooding and provide a continuous supply of fresh water for household and agricultural use, has altered naturally occurring flow patterns through the Everglades and into Florida Bay. Quantification of dynamic flow conditions within the south Florida ecosystem is vital to assessing implications of the residence time of water, potentially nutrient-enriched (with nitrates or phosphates) or contaminant-laden (with metals or pesticides), that can alter plant life and affect biological communities. Improved numerical techniques are needed not only to more accurately evaluate discrete forces governing flow in the canals and wetlands but also to analyze their complex interaction in order to facilitate coupled representation of transport processes. Flow and transport processes are integrally linked meaning that precise quantification of the fluid dynamics is required to accurately evaluate the transport of waterborne constituents. Robust models that employ highly accurate numerical methods to invoke coupled solution of the most appropriately formulated and representative equations governing flow and transport processes are needed. Through strategic use of a model, cause-and-effect relations between discharge sources, flow magnitudes, transport processes, and changes in vegetation and biota can be systematically investigated. The effects of driving forces on nutrient cycling and contaminant transport can then be quantified, evaluated, and more effectively factored into the development of remedial management plans. A well-developed model can be used to evaluate newly devised plans to improve freshwater deliveries to Florida Bay prior to implementation.


How was the data set created?

  1. From what previous works were the data drawn?

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

    Date: 1999 (process 1 of 1)
    Water Quality data Collection

    Collection of flow data in the canal C-111 overbank and adjacent wetland area began in September 1997 near the conclusion of the spoil removal efforts. Data were collected along 9 to 12 transect lines covering the 7.1-km segment of C-111 beginning 1.1 km north of US Hwy 1 bridge and ending 2 km south of S-18C. Transects originate at locations on the southwest bank of the canal opposite culverts under the levee road on the northeast bank and extend normal to the canal approximately 1.5 km into the adjacent wetlands. Transects lines are numbered 1 through 9 beginning with the culvert nearest US Hwy 1 bridge. Measurement sites are spaced at variable-length intervals along the transect lines.

    Five basic water-quality parameters (temperature, pH, specific conductance, dissolved oxygen, and salinity) were collected at each site having sufficient depth using a Hydrolab multi-parameter sensor positioned at mid-depth.

    For a more complete description of data collection, processing, and analysis, see OFR 00-56, Flow-Velocity Data Collected in the Wetlands Adjacent to Canal C-111 in South Florida During 1997 AND 1999.

    Person who carried out this activity:

    Eric D. Swain
    U.S. Geological Survey
    3110 SW 9th Avenue
    Ft. Lauderdale, FL 33315
    USA

    954 377-5925 (voice)
    954 377-5901 (FAX)
    edswain@usgs.gov

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

    Ball, M. H. Schaffranek, R. W., 2000, Flow-Velocity Data Collected in the Wetlands Adjacent to Canal C-111 in South Florida during 1997 and 1999: USGS Open-File Report 2000-56, U.S. Geological Survey, Reston, VA.

    Online Links:

    Other_Citation_Details:
    accessed as of 6/7/2011

    NOTE: You will need to install the free Lizardtech DjVU plug-in to view this file.

    Schaffranek, R, W., 1999, Hydrologic Studies in Support of South Florida Ecosystem Restoration: Proceedings ASCE 2000 Joint Conference on Water Resources Engineering and Water Resources Planning and Management none, American Society of Civil Engineers, Reston, VA.

    Online Links:

    Other_Citation_Details: accessed as of 6/7/2011
    Sontek, 1997, Sontek ADV acoustic Doppler velocimeter technical documentation: Sontek, San Diego, CA.


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?

    Parameters recorded for sites in 1997 include temperature, salinity, conductivity, dissolved oxygen and pH. In 1999 water depth, temperature, salinity and conductivity were recorded.

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

    Locations for sites sampled in 1997 are shown in latitude and longitude. Locations for the 1999 sites are in UTM coordinates


How can someone get a copy of the 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)

    Heather S. Henkel
    U.S. Geological Survey
    600 Fourth St. South
    St. Petersburg, FL 33701
    USA

    727 803-8747 ext 3028 (voice)
    727 803-2030 (FAX)
    hhenkel@usgs.gov

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

    water quality data

  3. What legal disclaimers am I supposed to read?

    The data have no explicit or implied guarantees.

  4. How can I download or order the data?


Who wrote the metadata?

Dates:
Last modified: 07-Jun-2011
Metadata author:
Heather Henkel
U.S. Geological Survey
600 Fourth Street South
St. Petersburg, FL 33701
USA

727 803-8747 ext 3028 (voice)
727 803-2030 (FAX)
sofia-metadata@usgs.gov

Metadata standard:
Content Standard for Digital Geospatial Metadata (FGDC-STD-001-1998)


This page is <https://sofia.usgs.gov/metadata/sflwww/wq_data_canal-wet.faq.html>

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