Extreme data points captured are usually treated as outliers … · 2014. 11. 13. · Neither...
Transcript of Extreme data points captured are usually treated as outliers … · 2014. 11. 13. · Neither...
-
Neither captures diurnal changes – e.g. Dissolved Oxygen
Extreme data points captured are usually treated as outliers
Model Calibration – Challenges due to sparse sampling points
Response of watershed to different types of precipitation
Traditional Sampling Limitations
(grab sampling, event sampling)
0
100
200
300
400
500
Jun/11 Jul/11 Aug/11 Sep/11 Oct/11
Date
To
tal
Su
sp
en
ded
So
lid
s
(mg
/L)
-
Exploring options to bridge the gaps!!
Using multi-parameter water quality sondes
Measuring key indicator parameters
Longer deployments – perhaps year-round
pH
Dissolved oxygen
Turbidity
Conductivity
Chloride
Water level
Water temperature
-
What is Real-Time Water Quality Monitoring
Hydrolab
Data Logger
Cellular network
Database
Happy water
resources tech!
-
Solar panel
Hydrolab
Equipment
enclosure
Housing pipe
(exchanged monthly)
Battery
Modem
Data logger
-
Funded by the Region of Peel under Climate Change Program
-
Credit River in Orangeville
Installed:
August 2012
Catchment:
Urban: 45%
(Orangeville)
Rural: 36%
Natural: 17%
Features:
• d/s of Island
Lake
• d/s of Town of
Orangeville
• d/s of waste
water treatment
plant
-
Installed:
October 2013
Catchment:
Rural: 44%
Urban: 28%
(Orangeville,
Caledon)
Natural: 23%
Features:
• WQ entering
the Niagara
Escarpment
Credit River at Cataract Falls
-
Installed:
February 2010
Catchment:
Rural: 33%
Urban: 20%
(Orangeville,
Georgetown,
Brampton)
Natural: 18%
Features:
• WQ of Credit
before City of
Mississauga
Credit River at Old Derry Road
-
Installed:
March 2011
Catchment:
Rural: 42%
Urban: 36%
(Orangeville,
Georgetown, Brampton,
Mississauga)
Natural: 21%
Features:
• WQ of entire Credit
watershed
• City of Mississauga
• Data used for Lake
Ontario modeling
Credit River at Mississaugua Golf and Country Club
-
Installed:
October 2013
Catchment:
Rural: 52%
Natural: 23%
Urban: 22%
(Erin, Hillsburgh)
Features:
• Most pristine
WQ
• Potential
development
in Erin and
Hillsburgh
West Credit River at Belfountain CA
-
Installed:
September 2013
Catchment:
Urban: 30%
(Acton and
Georgetown)
Rural: 29%
Natural: 29%
Features:
• Drains part of
Niagara
Escarpment
• d/s waste water
treatment plants
(Acton and
Georgetown)
Silver Creek at Willow Park
-
Installed:
September 2013
Catchment:
Rural: 67%
Urban: 25%
(Brampton)
Natural: 8%
Features:
• WQ pre- and
post-
residential
development
Huttonville Creek at Lionhead Golf and Country Club
-
Installed:
November 2013
Catchment:
Rural: 56%
Urban: 37%
(Brampton,
Mississauga,
Halton Hills)
Natural: 7%
Features:
• WQ pre- and
post- industrial
and residential
development
Levi Creek at Derry Road
-
Installed:
July 2011
Catchment:
Urban: 69%
(Brampton)
Rural: 27%
Natural: 4%
Features:
• WQ post-
intensive
residential
development
• Developments
with and without
SWM/WQ
control features
• Redside Dace
Fletcher’s Creek at Second Line
-
Installed:
November 2013
Catchment:
Urban:89%
(Mississauga)
Rural: 9%
Natural: 2%
Features:
• Drains into
Rattray Marsh
• Highly
urbanized
• No SWM or
WQ control
features
Sheridan Creek at Clarkson Road
-
Installed:
September 2010
Catchment:
Urban: 87%
(Mississauga)
Rural: 10%
Natural: 3%
Features:
• Residential
development
with no SWM
or WQ control
features
Cooksville Creek at King Street
-
Over to Amanjot