The objective of this study is to quantify freshwater flows into the tidal reach of the Caloosahatchee River, west of Franklin Locks.
This study is designed to span 5 fiscal years, with the first year dedicated to instrument purchase and gage-house construction, the following 3 years devoted to the collection, processing, and dissemination of hydrologic data, and the last year for the completion of data processing, analyses, and publication. If this network would remain in place for a longer period than is covered thru this project, provisions for funding will be discussed at a later date, before the end of the third year of data collection (2010).
Morlock, S. E.; Caldwell, W. S.
accessed as of 11/18/2009
Simpson, M. R.
available online only; accessed as of 11/18/2009
Discharge computations:
Index Velocity calibration ratings will be developed from ADCP measurements by determining relationships between measured in-situ velocity and mean measured velocity (from ADCP measurements). These Index ratings will be used in conjunction with water-level dependent cross-sectional areas to calculate time-series of discharge for all monitoring stations.
Between 60 and 100 ADCP measurements thru tide (~13 hour session of continuous measurements) will be made within the first month of operation at each monitoring station. These measurements will be used to develop an index velocity rating. Once this rating is completed, periodic ADCP measurements will be made (6 - 8 times per year) to verify that ratings are holding thru time, and to capture any flow condition not measured during initial phase (i.e. large freshwater releases thru S-79 and/or after a storm event). Once the rating is in place, discharge data will be computed on a quarterly basis and made available as PROVISIONAL records, until publication, at which time all data will be final. If conditions outside the range of measurements used in rating development exist, efforts will be made to capture these with additional ADCP measurements. If a revision of the rating is granted due to new measurements during extreme conditions, records will be revised as needed.
Time-series discharge records for all monitoring stations will represent the mean discharge for the entire cross-section. In the event that 3-D velocity field information is needed for modeling purposes, ADCP measurement files can be made available upon request.
In order to provide mean daily discharge values for load calculations used within the TMDL program, time-series data of tidal flow (flux) will be filtered to calculate NET discharge at all monitoring stations.
Salinity Records:
Salinity sensors will be field calibrated monthly with the use of Conductivity Standards. Any electronic drift or bio-fouling corrections will be applied accordingly following USGS established protocols. All bad data will be removed from records.
Temperature Records:
All field temperature sensors will be cross-checked against an NIST approved and verified thermometer during field visits. All erroneous data will be removed from records.
Shell Point will have NO salinity or temperature data collected. The sites at Billy Creek and Popash Creek will be constructed in such way that sensors for the measurement of salinity and temperature, and satellite equipment can be added at a later date if necessary.
1. Purchase of all instrumentation for 7 monitoring stations in the tidal Caloosahatchee River and tributaries. 2. Construction and instrumentation of all 7 monitoring stations. 3. Begin collection of hydrologic data at all 7 monitoring stations. 4. Make all real-time data available on a provisional basis thru the USGS Real Time web pages. 5. Collection, QA/QC, and storage of hydrologic data from all monitoring stations. 6. ADCP discharge measurements made at all monitoring stations for the development of velocity calibration ratings. 7. Begin processing discharge data at all monitoring stations.
1. Continue the collection, QA/QC, and storage of hydrologic data from all monitoring stations. 2. Make all real-time data available on a provisional basis thru the USGS Real Time web pages. 3. Continue ADCP discharge measurements made at all monitoring stations for the verification of velocity calibration ratings 4. Continue processing discharge data at all monitoring stations.
1. Continue the collection, QA/QC, and storage of hydrologic data from all monitoring stations. 2. Make all real-time data available on a provisional basis thru the USGS Real Time web pages. 3. Continue ADCP discharge measurements made at all monitoring stations for the verification of velocity calibration ratings 4. Continue processing discharge data at all monitoring stations. 5. Publish 2007 - 2009 (data from October 1, 2007 to September 30, 2009) records in the USGS 2009 Annual Report by April 1, 2010. 6. If this network would remain in place for a longer period than is covered thru this project, provisions for funding will be discussed before the end of the third year of data collection (2010).
1. If stations are to be continued, first three items listed for previous years will continue. 2. Continue processing discharge data at all monitoring stations. 3. Publish 2010 (data from October 1, 2009 to September 30, 2010) records in the USGS 2009 Annual Report by April 1, 2011.
U.S. Department of the Interior, U.S. Geological Survey
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