Chris McBride, David Hamilton, Joseph Butterworth, Dudley Bell
Image: M. Osborne
Sensors measure air and water quality every 15 mins and relay information
to an online database and web interface in real-time
Meteorology: - wind speed and direction
- air temperature
- relative humidity
- barometric pressure
- precipitation
Water quality: - surface and bottom dissolved oxygen
- chlorophyll fluorescence
- water temperature every 2 m
Live, web accessible data:
http://www.boprc.govt.nz/knowledge-centre/live-monitoring
Deployed July 2007
Lake Rotorua Buoy
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20
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2007 2008 2009 2010 2011 2012 2013 2014 2015
Dis
solv
ed o
xyge
n (
% s
atu
rati
on
)
Surface waters
Bottom waters
Lake monitoring buoys
Image: Google Earth
Image: NASA
Waikato:Lake NgarotoLake WhangapeLake Waahi
Bay of Plenty: Lake Rotorua
Lake RotoitiLake Tarawera
Lake Rotoehu (x2)Lake Okaro
Lake Rerewhakaaitu
Hawke’s BayLake Waikaremoana
Lake Tutira
Canterbury:Te Waihora (x2)
Assessing model performance (e.g. Rotorua)
Lake Okaro:pH & chlorophyll monitoring to support alum dosing
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2005 2006 2007 2008 2009 2010 2011 2012 2013
Turb
idit
y (F
TU)
Buoy turbidity
MERIS
MODIS
Landsat 7
Auto-wiper fitted to turbidity sensor
B3
http://www.lernz.co.nz/tools-and-resources/b3
Features• Automated winch for controlling sensor
depth.• Multi-parameter WQ probe, & met station• Water level sensor, with adjustment of
winch routine for safe operation in fluctuating water levels (e.g. reservoirs).
Autonomous water column profiling buoy system..developed at The University of Waikato
What now…?
• More buoys?
• Integration with Takiwā geospatial platform
• Automate QA/QC workflow
• Data assimilation for models
• Real-time and forecasting lake models
Image: M. Osborne