real time ecological surface water monitoring · 2016. 1. 22. · real-time wisp monitoring water...
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Alberta, Canada April , 2013
Real time ecological surface water monitoring
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Contents Company profile Focus areas and HAB development WISP optical monitoring backgrounds Validation Monitoring examples Monitoring and mitigation Future perspectives
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BlueLeg Monitor • Services in remote sensing for water quality by
– Satellite data – Water Insight Spectrometer (WISP) – Crowd supported iQWtr
• Company focus – Service provider for environmental water monitoring – Global view on remote sensing and local monitoring
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Blue Leg Hermit Crabs are prized for their algae-
eating abilities.
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Focus areas • Aquaculture companies • Dredging companies • Water Boards and Nature Reserves • Bathing Water • Ocean monitoring • Services companies
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HABs in the lift
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Real-time WISP monitoring Water color spectrum (400 – 760 nm range) A calibrated and quantitative measurement of the
spectrum The spectrum reveals information about parameters in
water influencing light reflection: Chlorophyll-a TSM Colored dissolved organic matter (e.g. humic
acids (CDOM) Vertical distinction (Kd) Secchi disk depth Blauwalgae pigments (Phycocyanine, PC)
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WISP-3 technology
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Advanced mobile optical instrument 3-channel spectrometer Easy to use, results on the spot Automated use, data conversion and storage Acces to WISPweb for data storage, analysis
and graphics
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CDOM Absorptie
TSM Reflectie
PC absorptie
Chl-a absorptie
TSM Reflectie + water Absorptie
Optical modelling (1) - PC
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CDOM Absorptie
TSM Reflectie
PC absorptie
Chl-a absorptie
TSM Reflectie + water Absorptie
Optical modelling (2) - CDOM
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CDOM Absorptie
TSM Reflectie
PC absorptie
Chl-a absorptie
TSM Reflectie + water Absorptie
Optical modelling (3) - TSM
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Strong points of optical measurements
• No water contact • From any platform (hand, buoy, boat,
airplane, satellite, ISS) and inter-changeable • Measurements : digital physical quantity
(never looses value) • Information translated into relevant
indicators • Large archives of historic satellite data
available • Techniques for interpretation well
understood
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Data Validation – Chlor -a
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COASTCOLOR: an ESA funded comparison of the 12 world leading algorithms WISP algorithme (AP06) proved to be #1
Validation coast-color in situ data
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WISP-3 versus fluoroprobes
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No quenching effects Combined determination of both CDOM and TSM (no further
calibration required due to light restrictions) One instrument measuring a range of parameters: TSM, Chl-
a, PC, Kd, SD, CDOM,... Algorithms are not sensitive for changes in optical
characteristics
Above water analysis: no biofouling
Flexible in use from various platforms (boat, satellite, aeroplane, on shore
Integrated measurements in the water body (surface and depth)
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Results: 2: Yearly median and maximum Chlorophyll-a maps 2003
Spring bloom March April
June: Coccolithophores
bloom
Phaeocystis bloom
March April
Patchy blooms Of various
species
Blooms in March and
October
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Reporting on Chlorophyll for the largest Dutch Mussels farm
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Monitoring and mitigation • Instant response monitoring • Prediction of algae blooms • To-the-point mitigation actions • If required: tailor made remediation program
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Integrated service approach
WISP web
Individual user information set
reported via WISP web Aggregated
reporting and benchmarking
App for bathing water quality
reporting
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Why work with BlueLeg Monitor
• Firmly research based: 20+ years of experience • Powerful instruments and validated methods • Information tailored to consumer requirements • Link with Dutch Institute for Environmental
Studies (Free University Amsterdam) • Broad experience in inland waters, coastal
waters and open sea • Established customers
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PLAY
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Questions / ideas ?
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