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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2007 2008 2009 2010 2011 2012 2013 2014 2015

Dis

solv

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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

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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