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Real-time Monitoring of the Derwent and Huon Estuaries in Southern Tasmania
Greg TimmsSenior Research ScientistTasmanian ICT Centre, CSIRO20 May 2009
Wealth from Oceans
The Tasmanian Marine Analysis Network (TasMAN)
Collecting and integrating real-time data to support multiple uses of the Derwent/Huon/Channel Region in southern Tasmania
• The role of the Tasmanian ICT Centre• Present existing data in a standard format/interface• Set up infrastructure/communications to enable real-time data collection from
the region• New data collection technologies• Data management and streaming data processing (e.g. event detection)• Integration of data with CSIRO models for forecasting• Data visualisation
• Current partners/data providers/stakeholders• HydroTas• Bureau of Meteorology• IMOS• CSIRO Marine and Atmospheric Research
The role of sensor networks
• Provide the ability to collect real-time and near real-time data• Automated collection
• Enables quick response to events
• Monitor recovery
• Limits costs and liabilities
• Enables reliable short-term forecasts (when coupled with models)
TasMAN
• Sensor locations• CSIRO Wharf
• Derwent mouth
• Mid-Derwent
• North-West Bay
• Huon
• Storm Bay
• Temp & Salinity initially• Turbidity/ Dissolved O2 /
Fluorescence later
Derwent
D’EntrecasteauxChannel
Surface nodeUnderwater node
Huon
Derwent
D’EntrecasteauxChannel
Deployed nodePlanned node
Huon
SeaBirdSBE-37 sensor
acoustic modem with batteries and Fleck
Sensor Cluster – Mouth of the Derwent
inductive cable withattached sensors
mooring
high gain (7 dBi)antenna
acousticrelease
pycnocline mooring chain
Fixed automated sensors
• Time series data, single location• Real-time comms (Radio, Acoustic, Satellite, 3G phone) or
loggers
Fixed automated sensors - challenges
• Security (particularly in coastal and estuarine environments)• Physical damage (waves, wind, etc)• Permissions• Cost – $3k up to $150k+• Deployment/maintenance• Biofouling
Mobile sensor nodes
CSIRO Autonomous Underwater Vehicle
• Now at third generation
• Starbug research focus• Vision-based navigation & control• Autonomy• Cooperative robotics• Human robot interface• 3D visualisation• Robot sensor network interaction
• Starbug specifications• Mass: 26kg• Length: 1.2 m• Propulsion: 5 thrusters• Endurance: 12 hrs @ 0.6m/s• Sensors: 4 cameras, pressure, GPS
Autonomous Data Collection
Autonomous Data Collection – depth profile
Autonomous Data Collection – depth profile
Identifying events in the river
8
8.5
9
9.5
10
10.5
11
11.5
12
8/08/2008 10/08/2008 12/08/2008 14/08/2008 16/08/2008 18/08/2008 20/08/2008 22/08/2008
Date
Wa
ter
Te
mp
era
ture
(d
eg
C)
CSIRO Wharf (Depth: -9.5 m)
Tinderbox (Depth: -16.5 m, 19 km downstream)
Channel (Depth: -17.5 m, 20 km downstream)
Snow melt? – a cold water plume in the Derwent (Aug 2008)
Integrating with models - output
Bluelink Model(Global Ocean Forecasting)
10km grid
SE Tasmania Model (CMAR) (Ocean/Estuary Forecasting)
polar grid – 400m to 2km
MESOLAPS Model(Global Atmospheric Model)
Derwent River Flowand temperature
(Hydro Tas)hourly data
Huon River Flow(BoM)
hourly data
Hobart wind speed and direction
(BoM)hourly data
TasMAN (Tas ICT Centre)15 min temperature and salinity
data at six locations
Nowcast and up to 24 hour forecast of salinity and
temperature in estuaries and coastal waters of SE Tasmania
Model-Sensor Integration (current situation)
Comparison
Bluelink Model(Global Ocean Forecasting)
10km grid
SE Tasmania Model (CMAR) (Ocean/Estuary Forecasting)
polar grid – 400m to 2km
MESOLAPS Model(Global Atmospheric Model)
Derwent River flowand temperature
(Hydro Tas)hourly data
Huon River flow(BoM)
hourly data
Hobart wind speed and direction
(BoM)hourly data
TasMAN (Tas ICT Centre)15 min temperature, chlorophyll, dissolved oxygen and salinity data at 15-17 locations
Nowcast and up to 24 hour forecast of salinity
and temperature in estuaries and coastal
waters of SE Tasmania
Model-Sensor Integration (plan)
Maria Island NRS (IMOS)
hourly data
Early warning andpredicted movement
of algal blooms
Identification of systemic changes in
river conditions
Identification ofnew sites
suitable for marine industry
Sensor tasking
TasMAN - Data Visualisation
Sensor Observation Service (April 2009)
TasMAN - Data Visualisation
Web interface (November 2008)
Thank you
Tasmanian ICT CentreDr Greg TimmsSenior Research Scientist
Phone: +61 3 6232 5572Email: [email protected]: www.csiro.au/science/TasMAN
Contact UsPhone: 1300 363 400 or +61 3 9545 2176Email: [email protected] Web: www.csiro.au