Water Flows and Nutrient Loads to the Southwest Coast of Florida

Metadata:

Identification_Information:
Citation:
Citation_Information:
Originator: Victor A. Levesque
Publication_Date: unpublished material
Title:
Water Flows and Nutrient Loads to the Southwest Coast of Florida
Publication_Information:
Publication_Place:
Publisher:
Online_Linkage: <http://sofia.usgs.gov/exchange/>
Description:
Abstract:
The southwest coast of Florida is part of a wilderness area with unique hydraulic characteristics that has historically been described as the "River of Grass". Flat terrain and lack of controlled topographic informa- tion has made it difficult to define drainage divides. Low gradients, coupled with tidal effects, create complex conditions under which to measure river flow. It has been almost thirty years since any effort has been made to monitor flow characteristics continuously in the area. Significant technological advancements have occurred during this time and this new technology can be applied to help obtain the information needed to make informed decisions about the future of this unique coastal area.

In 1996, the U.S. Geological Survey began a 4-year study of the flow and nutrient characteristics of three major streams that drain parts of the Everglades National Park. An upward looking acoustic Doppler current profiler, a water-level sensor, and two specific conductance sensors were installed at each site. Monthly discharge measurements are made with an acoustic Doppler current profiler to develop discharge ratings. Nutrient data are collected monthly at each site.

Purpose:
Flow, nutrient concentrations, and nutrient load data will provide part of the basic information needed to understand the hydrologic and water-quality characteristics for a part of the southwest coast of Florida. The analysis of these measurements will help characterize the current conditions for the three sites and explain the relation between upgradient water levels and southwest coastal stream flows, and the possible interaction between south- west coastal waters and the waters of Florida Bay. The data can also be used as input to hydrodynamic and water-quality models.
Supplemental_Information:
Time_Period_of_Content:
Time_Period_Information:
Range_of_Dates/Times:
Beginning_Date: 199610
Ending_Date: present
Currentness_Reference: publication date
Status:
Progress: in work
Maintenance_and_Update_Frequency: as needed
Spatial_Domain:
Bounding_Coordinates:
West_Bounding_Coordinate: -81.25
East_Bounding_Coordinate: -81.00
North_Bounding_Coordinate: 25.50
South_Bounding_Coordinate: 25.33
Keywords:
Theme:
Theme_Keyword_Thesaurus:
Theme_Keyword: mangroves
Theme_Keyword: rivers
Theme_Keyword: discharge
Theme_Keyword: nutrients
Place:
Place_Keyword_Thesaurus: SR12, SR28
Place_Keyword: Broad River
Place_Keyword: Harney River
Place_Keyword: Shark River
Place_Keyword: Everglades National Park
Place_Keyword: Central Everglades
Place_Keyword: SW Big Cypress
Place_Keyword: Greater Lake Okeechobee
Access_Constraints:
None. Raw data is considered provisional until receiving final publication approval.
Use_Constraints: None.
Point_of_Comments and suggestions? Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Victor A. Levesque
Contact_Organization: U.S. Geological Survey
Contact_Position: Project Chief
Contact_Address:
Address_Type: mailing address
Address: 4710 Eisenhower Blvd., B-5
City: Tampa
State_or_Province: FL
Postal_Code: 33634
Contact_Voice_Telephone: 813 884 9336
Contact_Facsimile_Telephone: 813 889 9811
Contact_Electronic_Mail_Address: levesque@usgs.gov
Hours_of_Service:
Native_Data_Set_Environment: MatLab, NWIS/ADAPS
Data_Quality_Information:
Logical_Consistency_Report: not applicable
Completeness_Report: not applicable
Positional_Accuracy:
Horizontal_Positional_Accuracy:
Horizontal_Positional_Accuracy_Report: not available
Quantitative_Horizontal_Positional_Accuracy_Assessment:
Horizontal_Positional_Accuracy_Value: 30
Horizontal_Positional_Accuracy_Explanation:
WGS84 datum, position acquired using differential corrected GPS.
Lineage:
Process_Step:
Process_Description:
A reconnaissance of the southwest coastal rivers was conducted and three sites were selected for collecting discharge, water level, and water quality data. An upward looking acoustic Doppler current profiler (index water velocity sensor), a water-level sensor, and two specific conductance sensors (top and bottom) were installed at each site. Data are measured and recorded at 15-minute intervals. Monthly stream discharge measurements are made at each site using an acoustic Doppler current profiler. These measurements will be used to develop discharge ratings based on the in situ sensors, providing a continuous record of river discharge. The relation of upgradient water levels and coastal net water discharge will be evaluated.

Water-quality samples are collected monthly. The samples are analyzed for total and dissolved nutrients (nitrogen and phosphorus) and specific conductance.

Process_Comments and suggestions? Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Victor A. Levesque
Contact_Organization: U.S. Geological Survey
Contact_Position: Project Chief
Contact_Address:
Address_Type: mailing address
Address: 4710 Eisenhower Blvd., B-5
City: Tampa
State_or_Province: FL
Postal_Code: 33634
Contact_Voice_Telephone: 813 884 9336
Contact_Facsimile_Telephone: 813 889 9811
Contact_Electronic_Mail_Address: levesque@usgs.gov
Process_Date: not complete
Spatial_Reference_Information:
Horizontal_Coordinate_System_Definition:
Geographic:
Latitude_Resolution:
Longitude_Resolution:
Geographic_Coordinate_Units:
Distribution_Information:
Distributor:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Victor A. Levesque
Contact_Organization: U.S. Geological Survey
Contact_Position: Project chief
Contact_Address:
Address_Type: mailing address
Address: 4710 Eisenhower Blvd., B-5
City: Tampa
State_or_Province: FL
Postal_Code: 33634
Contact_Voice_Telephone: 813 884 9336
Contact_Facsimile_Telephone: 813 889 9811
Contact_Electronic_Mail_Address: levesque@usgs.gov
Resource_Description:
Distribution_Liability: The data have no implied or explicit guarantees.
Standard_Order_Process:
Digital_Form:
Digital_Transfer_Information:
Format_Name:
Digital_Transfer_Option:
Online_Option:
Computer_Contact_Information:
Network_Address:
Network_Resource_Name:
Fees:
Metadata_Reference_Information:
Metadata_Date: 19980805
Metadata_Comments and suggestions? Contact:
Contact_Information:
Contact_Person_Primary:
Contact_Person: Jo Anne Stapleton
Contact_Organization: U.S. Geological Survey
Contact_Address:
Address_Type: mailing address
Address: 521 National Center
City: Reston
State_or_Province: VA
Postal_Code: 20192
Contact_Voice_Telephone: 703 648 4592
Contact_Facsimile_Telephone: 703 648 4614
Contact_Electronic_Mail_Address: jastapleton@usgs.gov
Metadata_Standard_Name: FGDC Content Standard for Digital Geospatial Metadata
Metadata_Standard_Version: 19940608
Generated by mp on Tue Sep 01 14:47:45 1998