3. Mixing Zones (n): 1.Mixing zones are limited regions in rivers, lakes and coastal areas where the initial dilution (dispersion) of point-source wastewater discharges occur

7. CORMIX Licensing Technical Support Mixing Zone Field Studies Consulting

9. CTD Conductivity, Temperature, Depth Used to find plumes ADCP Acoustic Doppler Current Profiler Uses sonar to determine water velocities DGPS Differential Global Positioning System Provides sub-meter location data Source: rdinstruments

10. Location ±15m from satellites Differential GPS Station broadcasts offset between known coordinates and satellite coordinates. Illustration: Nathan Hinkle

11. Forward Looking InfraRed Uses infrared to measure spot temperatures Source: mixzon.com

12. FLIR system on a telescoping mastFLIR system on a tethered balloon

13. Photos: mixzon.com Internally developed software Commercial Processing Software

14. Riverboat Sensors GPS WiFi Bridge WiFi Access Point Laptop Internally developed processing tools Source: mixzon.com Commercial processing tools

16. CTD = Conductivity, Temperature, Depth sensor Used to find plumes and determine mixing zones Data collected as text files Photo: mixzon.com

18. Sensor is dropped in Downcast …then pulled up Upcast We only want upcast data We only want the data points for the maximum values

19. Data saved as raw text Interns and employees manually find upcast Maximum values manually found Slow, inefficient

20. Designed an algorithm Wrote an application to implement algorithm Used C++/CLI programming language

21. Output as smaller text files Output to GIS shapefile GPS coordinates make points Attribute data attached to coordinate points Maps can be created from these points

22. User can select multiple files Output is shown while processing Graph is shown for each of the measurements Maximum values are shown with lines and in text User can select which files graph to look at Status strip shows sensor information

23. Helped with field data collection

24. Redesigned MixZons intranet site New UI Platform-independent, w3c-compliant code Used PHP, HTML, CSS

25. Microsoft C++/CLI New programming language Mixing zone terminology Understanding of GPS/GIS Environmental science in the field Experiencing a professional work situation

26. Other interns sections of the ppt have been redacted

27. Thank you to all of the people who made our internships such a great experience: Dr. Robert Doneker – MixZons President Our mentors Adi Ramachandran Dr. Todd Sanders Frank Opila Kent Thompson Thomas Legacy Lovett The ASE staff