Modelling Antarctic lakes with automatically collected data

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Modelling Antarctic lakes with automatically
collected data
Environmental E-Science wrap-up meeting London,
14 February 2005
Remote Environmental Monitoring
Malcom Foster School of Electronic Engineering
Tim Reid
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Davis Station - 68º37S 78º23E
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Vestfold Hills
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Crooked Lake
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The Monitoring Equipment

• Datalogger
• Campbell Scientific CR10X
• Power
• Saft Batteries Very Large
• Solar Panels
• Wind Charger
• Sensors
• Communications
• Iridium Mobile Phone Network 2 Modems

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The Sensors

• PAR Surface, 3m, 5m, 10m, 20m, Albedo

• UVB Surface, 3m

• Temperature Surface, 3m, 5m

• Anemometer (wind Speed and Direction)

• Ice Thickness Measurements

• Space provided for later expansion
• Relative Humidity
• UVB 4m
• Anemometer

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The Equipment
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Underwater Sensors
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Ice Thickness Measurement
3 Methods- Thermal Profiler Visual Profiler Sonar
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Ice Profiler Results
Definite change in temperature seen between
thermistor numbers 26 and 27 - equates to an ice
thickness of 1.15m Resolution to 50mm only
LEDs only visible from number 37 down - equates
to an ice thickness of 1.65m Resolution to 50mm
only
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All Methods Results
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Diurnal Changes in IceThickness from Sonar
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Surface PAR Data
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Re-Sampled SurfacePAR Data
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Difficulty TransportingEquipment to Crooked Lake
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Cutting a slot in theice for the Profiler
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Acknowledgements
Many thanks to The Australian Antarctic
Division, The Australian Bureau of Meteorology,
School of Electronic Engineering (Barrie
Hayes-Gill, Mark Sumner, John Crowe), School of
Computer Science and I.T. (Steve Benford, Chris
Greenhalgh), School of Biological Life Sciences
(Tim Reid, Johanna Laybourn-Parry) and my fellow
wintering crew at Davis.