Data from Automated Sensors 05/03/2015 2:00:00 - PowerPoint PPT Presentation

05/03/2015 12:00:00 PM,12.4,9.33,1.7,7.33,101.7,12.34,4.79,99.7,12.90,8.01,7.78,6.04,6.49,6.63,6.96,7.48,7.28,5.65,5.53,402,600,7.13, 05/03/2015 12:15:00 PM,12.4,9.01,1.6,7.31,102.4,12.43,4.77,99.8,12.91,8.00,7.74,5.98,6.41,6.60,6.93,7.44,7.06,5.62,5.53,350,666,7.13, 05/03/2015 12:30:00 PM,12.4,9.96,2.0,7.30,102.7,12.47,4.78,99.8,12.92,8.00,7.76,5.98,6.44,6.60,6.93,7.47,7.04,5.62,5.52,362,521,7.13, 05/03/2015 12:45:00 PM,12.3,9.77,1.6,7.32,103.0,12.50,4.80,99.8,12.91,7.99,7.81,6.15,6.53,6.64,6.89,7.44,7.06,5.64,5.54,346,585,7.11, 05/03/2015 1:00:00 PM,12.3,9.50,1.5,7.31,103.3,12.53,4.94,99.8,12.86,7.97,7.76,6.23,6.53,6.64,6.86,7.42,7.03,5.64,5.54,410,495,6.98,1 Use and Management of Lake 05/03/2015 1:15:00 PM,12.3,10.05,2.0,7.31,103.5,12.56,4.80,99.7,12.90,8.09,7.69,6.19,6.54,6.67,6.84,7.44,7.06,5.64,5.54,342,724,7.00, 05/03/2015 1:30:00 PM,12.4,9.11,1.5,7.32,103.6,12.56,4.92,99.6,12.85,8.00,7.82,6.30,6.56,6.68,6.86,7.44,7.05,5.64,5.54,410,702,7.06, 05/03/2015 1:45:00 PM,12.4,8.94,1.4,7.36,103.7,12.57,4.93,99.5,12.83,8.08,7.87,6.30,6.53,6.67,6.91,7.53,7.11,5.64,5.54,394,637,7.10,1 Data from Automated Sensors 05/03/2015 2:00:00 PM,12.4,8.68,1.5,7.35,103.8,12.59,4.93,99.4,12.81,9.36,7.81,6.32,6.55,6.65,6.86,7.55,7.11,5.66,5.54,400,623,7.11,1 05/03/2015 2:15:00 PM,12.3,8.91,1.6,7.45,103.9,12.57,4.96,99.0,12.76,9.46,7.89,6.32,6.55,6.65,6.92,7.60,7.24,5.69,5.53,432,585,7.25,1 05/03/2015 2:30:00 PM,12.3,9.30,1.8,7.72,104.0,12.50,4.80,98.7,12.76,9.31,7.92,5.97,6.54,6.75,7.00,7.52,7.27,5.62,5.52,364,510,7.25,1 by a Regional Organization 05/03/2015 2:45:00 PM,12.3,10.74,1.9,7.45,104.3,12.61,4.80,98.2,12.70,9.15,7.73,5.98,6.55,6.66,6.99,7.52,7.17,5.64,5.53,343,438,7.26, 05/03/2015 3:00:00 PM,12.1,15.56,3.3,8.15,104.5,12.42,4.80,97.7,12.64,8.91,7.83,5.91,6.56,6.71,7.01,7.52,7.20,5.63,5.53,92,142,7.23,1 05/03/2015 3:15:00 PM,12.1,21.50,4.9,7.69,104.8,12.60,4.79,97.2,12.58,8.74,7.98,5.95,6.60,6.78,7.01,7.55,7.24,5.62,5.54,76,121,7.18,1 Colin Holme and Amanda Pratt 05/03/2015 3:30:00 PM,12.2,17.95,3.9,7.74,105.1,12.61,4.80,96.6,12.50,8.61,8.00,6.09,6.64,6.84,7.15,7.57,7.33,5.60,5.54,131,242,7.25, Lakes Environmental Association 05/03/2015 3:45:00 PM,12.1,23.14,5.0,7.77,105.2,12.63,4.78,96.4,12.48,8.57,7.99,6.04,6.64,6.76,7.02,7.58,7.32,5.56,5.56,59,88,7.24, 05/03/2015 4:00:00 PM,12.1,25.85,5.7,7.87,105.4,12.62,4.79,96.2,12.45,8.42,8.23,5.96,6.65,6.80,7.13,7.70,7.41,5.56,5.55,63,94,7.27, 05/03/2015 4:15:00 PM,12.1,24.23,6.4,7.78,105.6,12.67,4.66,96.2,12.49,8.41,8.23,5.95,6.64,6.81,7.18,7.71,7.48,5.56,5.54,63,97,7.49, 05/03/2015 4:30:00 PM,12.0,1.51,-0.4,7.76,105.7,12.69,4.77,96.7,12.52,8.42,8.20,5.96,6.60,6.80,7.14,7.72,7.52,5.56,5.56,61,96,7.52, 05/03/2015 4:45:00 PM,12.1,26.39,6.2,7.86,105.9,12.67,4.84,96.8,12.51,8.41,8.21,5.98,6.67,6.84,7.13,7.87,7.60,5.57,5.55,61,90,7.52, 05/03/2015 5:00:00 PM,12.4,15.58,3.5,7.88,105.9,12.67,5.07,96.9,12.45,8.46,8.25,6.10,6.69,6.87,7.20,7.94,7.56,5.77,5.56,120,172,7.56, 05/03/2015 5:15:00 PM,12.4,17.76,4.1,7.89,106.1,12.69,5.02,97.1,12.49,8.56,8.30,6.11,6.69,6.84,7.12,7.96,7.52,5.64,5.56,93,145,7.56,1 05/03/2015 5:30:00 PM,12.2,25.20,6.2,7.91,105.9,12.66,5.03,97.2,12.50,8.74,8.39,6.10,6.63,6.85,7.09,8.00,7.40,5.60,5.57,53,79,7.47, 05/03/2015 5:45:00 PM,12.0,1.76,-0.3,8.04,106.0,12.63,4.96,97.3,12.54,8.88,8.46,6.05,6.59,6.86,7.02,7.97,7.37,5.61,5.58,39,58,7.43, 05/03/2015 6:00:00 PM,12.2,18.52,4.1,8.14,106.1,12.62,4.86,97.4,12.58,8.78,8.72,6.03,6.58,6.88,7.04,7.98,7.45,5.64,5.60,62,91,7.45,

Who we are/What we do:  Primarily membership funded multi-lake association • Cover 40 lakes, core of 6 towns • 20-40 years of routine lake testing data using VLMP/DEP guidelines • Stormwater control projects at state, municipal and residential level • Large invasive aquatic prevention and control programs • Robust education programs • Maine Lake Science Center

Rationale/Background  40 year history of traditional manual sampling  Advantages of remote sensing/water testing technology  Keeping up with advances in technology

Technologies Used by LEA  Fluorometer  Digital Temperature Sensors  Automated Water Testing Buoy

Fluorometer  Measures chlorophyll via fluorescence  No filtering & processing of samples  Can take chlorophyll readings anywhere and get data instantly  Profiles taken every meter to the thermocline  Fluorescence converted to ppb chlorophyll via calibration curve  QA/QC:  Blank meter with DI water sample  Correct fluorometer readings for temperature  Compare with other water testing data

Fluorometer Calibration Curve  Create calibration curve using samples measured with fluorometer then sent to the lab  Most lab samples were between 2 and 5 ppb  Having a greater range of chlorophyll values will improve the accuracy of the calibration curve

Fluorometer Data

HOBO Digital Temperature Sensors  Attached to floating line at 2 meter intervals  Collect Data May – November  Factory calibrated  Verified with manual sampling (YSI meters)  Data matches well when adjusted for depth of sensors

Water Testing and HOBO Sensor Comparisons Good Fit Poor Fit Corrected Fit

? Water Testing Data

HOBO Sensor Data Temperature Peak Mixing Temperature Spike Destratification

Graphed Together

Automated Monitoring Buoy  Measurements:  Temperature Profiles  Oxygen Profiles  Chlorophyll  PAR (photosynthetically active radiation)  Sends data to our office every 15 minutes  Coupled with a weather station  Calibrate O 2 sensors once a month

2015

2014

Expected Secchi (from PAR) vs Chl-a from Fluorometer

Diurnal fluctuations : Oxygen

Diurnal fluctuations : Oxygen and Chl-a

Buoy Oxygen vs YSI Handheld Meters YSI 550A vs. Buoy Oxygen, 7/8/15 1:30 pm YSI PRO O DO vs. Buoy Oxygen, 8/19/15 9:00 am Dissolved Oxygen (ppm) Dissolved Oxygen (ppm) 0 1 2 3 4 5 6 7 8 9 10 0 1 2 3 4 5 6 7 8 9 10 0 0 2 2 4 4 6 6 Depth (m) Depth (m) 8 8 10 10 12 12 14 14 16 16 YSI Buoy YSI Buoy

Questions?