Zucker, Mark, 2010, Hydrologic Monitoring in Joe Bay.Online Links:
Horizontal positions are specified in geographic coordinates, that is, latitude and longitude. Latitudes are given to the nearest 0.01. Longitudes are given to the nearest 0.01. Latitude and longitude values are specified in Degrees, minutes, and decimal seconds.
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.
Project personnel include Jeff Woods, Christian Lopez, Barclay Shoemakeer, and Carrie Boudreau
954 377-5952 (voice)
954 377-5901 (FAX)
mzucker@usgs.gov
Joe Bay is the primary hydrologic connection between the freshwater Everglades and northeastern Florida Bay. Flow and salinity monitoring by the U.S. Geological Survey (USGS) has determined that Trout Creek is the largest contributor of freshwater flow to northeastern Florida Bay and is connected to Joe Bay (Hittle and others 2001). Sources of freshwater to Joe Bay include Taylor Slough and the C-111 Canal. Hydrologic parameters such as water level, discharge, and salinity observations in conjunction with water quality sampling have been useful in determining contributions of freshwater flow from Taylor Slough and C-111 Canal to Joe Bay (Zucker 2003). Hourly salinity data has been collected at four locations in Joe Bay since May 1999. In 2001, three index velocity stations were installed at Joe Bay 2E, Joe Bay 5C, and Joe Bay 8W. The current monitoring network in Joe Bay can assist with determining the effect upstream restoration efforts have on the timing and distribution of freshwater flows into northeastern Florida Bay.
Water level data is collected using an acoustic Doppler velocity meter (ADVM). An upward looking acoustic sensor provides depth data which is converted to water level using the relation of ADVM measured depth to observed water level. Site elevations in NAVD '88 were determined by the USGS Geography Discipline in 2002
Salinity and Temperature Analysis: Salinity and temperature data are currently collected using a Yellow Springs Incorp. (YSI) Optical Monitoring System (OMS) sensor. Sensors are deployed and housed in an open-ended, PVC mount to reduce bio-fouling. Hourly data is stored internally and downloaded using a YSI 650 hand-held monitoring unit. Sensors are evaluated monthly for bio-fouling and electronic drift and corrected accordingly. All YSI sensors are calibrated to laboratory determined specific conductance standards provided by the USGS Ocala Water Quality and Research Laboratory (OWQRL). Temperature sensors are verified by performing in-situ profiles and bucket comparisons against a reference sensor.
Discharge computations: Discharge in bi-directional estuarine rivers is determined by developing a velocity index rating. Velocity index ratings use the combination of in-situ velocity measurements collected every fifteen minutes by the ADVM while the cross-sectional area is determined using water level data. The cross-sectional area rating is created using an Acoustic Doppler Current Profiler (ADCP) to define the cross-sectional characteristics of the estuarine stream (width and depths) for a given water level. Changes in the cross-sectional area are directly related to changes in water level over time. The ADVM provides an average horizontal velocity measurement at a fixed depth. The ADVM is then calibrated to represent the mean channel velocity by first determining the channel discharge and dividing by the cross-sectional area. A simple linear regression between the ADVM velocity and the ADCP mean measured velocity over a range of conditions is performed to develop an equation to relate the ADVM velocity to the mean channel velocity. More detailed index velocity rating techniques are available in Hittle and others (2003). Field data is acquired during field trips and is uploaded from field computers to personal computers upon arrival to the office. All data files are quality assured prior to uploading to the USGS database.
The Joe Bay network is visited on a monthly basis and is dependent on weather conditions and access as deemed by ENP. Sites may be visited more frequently in the event of a station problem or a planned synoptic survey.
Any use of trade, product, or firm names is for descriptive purposes only and does not constitute endorsement by the U.S. Government
Person who carried out this activity:
954 377-5952 (voice)
954 377-5901 (FAX)
mzucker@usgs.gov
Hittle, Clinton Patino, Eduardo; Zucker, Mark, 2001, Freshwater flow from estuarine creeks into northeastern Florida Bay: USGS Water-Resources Investigations Report 01-4164, U.S. Geological Survey, Reston, VA.Online Links:
Hittle, Clinton D. Zucker, Mark A., 2004, Northeastern Florida Bay estuarine creek data, Water Years 1996-2000: USGS Digital Data Series DS 105, U.S. Geological Survey, Tallahassee, FL.Online Links:
U.S. Geological Survey, 2007, Water-Resources Data for the United States: Water Year 2007: USGS Water Data Report Water Year 2007, U.S. Geological Survey, online.Online Links:
The link below goes to selected stations for south Florida
U.S. Geological Survey, 2006, Water-Resources Data for the United States: Water Year 2006: USGS Water Data Report Water Year 2006, U.S. Geological Survey, online.Online Links:
The link below goes to selected stations for south Florida
Hittle, C. Patino, E., 2003, Magnitude and distribution of flows into northeastern Florida Bay: USGS Fact Sheet FS-030-00, U.S. Geological Survey, Florida.Online Links:
available upon request
Site elevations in NAVD 88 were determined by the USGS Geography Discipline in 2002 as part of the high accuaracy elevation data collection project
The data for the Joe Bay sites are now included in the South Florida Hydrology Database at <http://sofia.usgs.gov/exchange/zucker_woods_patino/index.php>
Discharge, salinity, stage, and temperature were measured at the four Joe Bay Stations.
Are there legal restrictions on access or use of the data?
- Access_Constraints: none
- Use_Constraints: none
727 803-8747 ext 3028 (voice)
727 803-2030 (FAX)
hhenkel@usgs.gov
South Florida Hydrology Database
The data have no explicit or implied guarantees.
| Data format: | Data for the stations with selectable variables, time frame, output format, and output organization in format ASCII comma-separated values (.csv) or tab-delimited text files |
|---|---|
| Network links: |
<http://sofia.usgs.gov/exchange/zucker_woods_patino/index.php> |
727 803-8747 ext 3028 (voice)
727 803-2030 (FAX)
sofia-metadata@usgs.gov
U.S. Department of the Interior, U.S. Geological Survey
Comments and suggestions? Contact: Heather
Henkel - Webmaster
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