In-situ measurement of ammonia in surface water of the Indian River Lagoon

 

(1) September - October 2013

Figure 1. Measurements of ammonium in the surface waters of the Indian River Lagoon, Florida, at the pier of the Harbor Branch Oceanographic Institute, Florida Atlantic University from September 23 to October 12, 2013 (plotted with daily precipitation).

  

Figure 2. Effect of ammonium concentrations on chlorophyll concentrations.

 

 

Figure 3. Ammonium concentrations are plotted with conductivity.

 

 

Figure 4. Ammonium concentrations are plotted with current direction.

 

 

Figure 5. Ammonium concentrations are plotted with salinity.

 

 

Figure 6. Nitrate concentrations are plotted with chlorophyll.

 

 

Figure 7. Phosphate concentrations are plotted with chlorophyll.

  

(2) June 2014

Figure 8. Intercomparison data with the EPA standard method. The system was deployed at the Indian River Lagoon from June 16 to 23, 2014.