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The Use of Innovative Technologies to Monitor and Manage Chesapeake Bay Water and Habitat Quality
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Transcript of The Use of Innovative Technologies to Monitor and Manage Chesapeake Bay Water and Habitat Quality
Christopher Heyer, Mark Trice, Bruce Michael,Ken Moore, Willy Reay, Dave Wilcox
Estuarine Research Federation – Chesapeake Research Colloquium Norfolk, VA 21 October 2005
The Use of Innovative Technologies to Monitor and Manage Chesapeake Bay Water and Habitat Quality
Monitoring Components
• Special Projects
• Operational• Fixed Station Monitoring• Real-Time Monitoring Network• Water Quality Mapping
• DataView• Sensor Testing• Vertical Profilers• Remote Sensing• CBOS• Event Triggered Sampling• Current Measurements• AUV
Continuous Monitoring
• 39 stations statewide
• Generally, deployed April - October
• Hourly telemetry from 18 stations to website
• Most meters set at 1-meter below surface
• Measures water quality parameters every 15 minutes
• Provides temporally intensive data during extreme events and other times it’s impractical to deploy field crews
Dissolved Oxygen, Turbidity, Chlorophyll, Water Temperature,Salinity, pH
System Status and Alerts
Dissolved Oxygen & ChlorophyllExceedances
Telemetry Status
Equipment Malfunction
Water Quality Mapping
• Data collected every 4 seconds
• Speeds up to 25 knots
• 3,500 - 15,000 data readings/day
• Spatially explicit data are useful for delineating habitat conditions
25ug/l Chl a ThresholdMagothy River
06/27/01
Pass
90% Confidence
Fail
Uncertain
Water Quality Mapping New Design
Eyes on the Bay – Web Portal
http://www.eyesonthebay.net
DATAFLOW Visualization SoftwareNew Real-Time Mapping (DATAVIEW)
Use existing GIS data (bathymetry, SAV coverage, past cruise tracks, past data, etc.)
Alert system for collecting samples or equipment malfunction
Delineate blooms, turbidity max zones, anoxia
Probability mapping which allows resampling to improve measurement certainty.
Ground-Truthing SAV distributionRemote sensing imagery
Benefits of DATAVIEW
95% ConfidenceA Threshold is not Violated
95% ConfidenceA Threshold is Violated
Uncertain
Sensor Testing
• OpticalDissolved OxygenSensors
• CyanobacteriaFluorescenceSensors
Vertical ProfilersElectronicsPackage
Battery
Computer Controlled Winch
Remote Sensing
mddnr.chesapeakebay.net/NASAimagery/EyesInTheSky.cfm
CBOS Data Plot, MB: YSI Dissolved Oxygen, mg/L2005-07-22 thru 2005-09-30
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2005-07-22 2005-08-01 2005-08-11 2005-08-21 2005-08-31 2005-09-10 2005-09-20
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CBOS Data Plot, MB: YSI Chlorophyll, µg/L2005-07-22 thru 2005-09-30
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2005-07-22 thru 2005-09-30
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Chesapeake Bay Observing System (CBOS)
Event Triggered Sampling
CBOS/HPL Dock
N+N
PHOSPHATE
Urea /Ammonium
Power source
DataLogger
Water sampler
YSI 6600
DataTelemetry
Shore station PC
Shore station antenna
MD DNR
www.eyesonthebay.netNear-real time data display
HPLWork conducted by UMCES Horn Point Lab
Current Measurements
AUV
• Detecting Localized Changes in Water Quality Associated with Oyster and SAV Restoration Sites (Corsica River)
• Mapping Water Quality in Tidal Creeks and Other VERY Shallow Areas
• 3D Interpolation of Water Quality (AUV in Combination with DataFlow)
• 3D Structure Algal Blooms
AcknowledgementsPartners
A Super Team!• Maryland and Virginia
• Field Operations• Staff, Faculty and
Student Researchers• Data Managers