1. N The New Zealand connection: Rotorua lakes David Hamilton and Chris McBride University of Waikato, New Zealand Location Stream nitrate levels

2. DO chl a pH/chloride/temp DO Thermistor string (11 sensors) ~1.5 m ~ 20m redox/nitrate/temp pH/chloride/temp Light meters Sensors – Lake stations Thermistor string - Apprise Technologies TempLine Dissolved oxygen - Zebra-tech d-opto optical sensors Fluorometer – Seapoint chlorophyll fluorometer pH and chloride – INW TempHion T3 sensors Irradiance – Appogee QSO quantum sensors Datalogger – iQuest DS-4483 logger

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4. L. Rotorua L. Rotoiti: Narrows L. Tarawera L. Rotoiti: Crater Tarawera: Weather station Select a lake or weather station from the map above to view summary graphs/data OR Choose your own sensors/lakes/date ranges to make graphs or download data. Rotorua Lakes remote sensor network

5. Web interface - Lake Rotorua 0 m TempLine thermistor string 2 m 4 m 6 m 8 m 10 m 12 m 14 m 16 m 18 m 20 m 21.4 °C 30 10 20 25 15 0 20 10 5 15 Values logged at: 14:15:00 SensorValue Last logged Graph last: DO [%sat]- surface9.0014:15:001 week6 months DO [%sat] - bottom5.0014:15:0024 h1 week6 months Chlorophyll a [ug L -1 ]10.0014:15:0024 h1 week6 months pH - surface7.0014:15:0024 h1 week6 months pH - bottom7.0014:15:0024 h1 week6 months Cl - [ppm]- surface0.0014:15:0024 h1 week6 months Cl - [ppm] - bottom0.0014:15:0024 h1 week6 months ORP - bottom0.0014:15:0024 h1 week6 months NO 3 - [ppm] - bottom0.0014:15:0024 h1 week6 months Depth [m] Temperature [ o C] JunMarDecSep 24 h Homepage Last: 2 weeks 2 months 1year

6. Web interface - Lake Rotorua