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An Inexpensive Deployable Acoustic
Snow Observing Sensor (IDASOS)
Sean Helfrich (sean.helfrich@noaa.gov)NESDIS Snow and Ice Product Area LeadNational Ice Center
Introduction
What is it:
A low cost instrument designed to over come the requirement of multiple snow observations over an area.
What purpose does it serve:
Snow depth is spatially heterogeneous and proper assessment requires a high spatial sampling rate over a broad area to account for the variability, requiring resources and time from observers. Typical automated snow depth measurements can be cost prohibitive. Cost of instruments often forces observers to limit the number of instruments taking samples. IDASOS hopes to overcome this limitation in automation.
IDASOS Prototype Parts
About $200 for this prototype
IDASOS Site Locations2010
Joe Wright SnoTel vs IDASOSJOE WRIGHT SNOTEL station
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03/08/10 03/13/10 03/18/10 03/23/10 03/28/10 04/02/10 04/07/10 04/12/10 04/17/10
Sensor 4 depth (cm) SNOTEL depth (Judd Communications Snow Depth Sensor) (cm) Sensor 3 snow depth (cm)
CSU site vs IDASOSColorado State University Site
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3/8/2010 3/13/2010 3/18/2010 3/23/2010 3/28/2010 4/2/2010 4/7/2010 4/12/2010
Sensor 1 (cm) CSU Main Campus (Campbell SR-50 ) (cm)
What is next?
Test for wireless transmission (Bluetooth?)
Increase Power - 2011 battery pack lasted 5 months in at 10k feet
Real-time data processing code
Increase samples to 20,000 for datalogger.
Configure in an array to access snow variability for remote sensing calibration
Other utilities?
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