EOL Seminar: New Tools near the Triple Point: Measuring Antarctic Ice Shelf Stability, Endangered Spring Fish, Snowmelt Dynamics and Flying Drones

Tuesday, June 12, 2018 - 15:30 to 16:30
FL2 - 1022
Contact Name: 
Mike Reeves
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Dr. Scott W. Tyler
University of Nevada Reno

Hydrologic sciences and engineering are being transformed by the explosion of low cost and widely distributed sensing capabilities. In this talk, I will present a series of examples on the use of distributed fiber-optic sensing and unmanned aircraft to monitor Antarctic glacier melting and stability, quantify the thermal environment of regional groundwater springs, measure snowmelt processes at the forest scale and the application of small Unmanned Aircraft Systems (sUAS) for hyporheic exchange.

In the Antarctic, evidence to date indicates that ocean warming and changes in ocean circulation are increasing the rate of melting of many floating shelf glaciers of West Antarctica. The shelf glaciers serve as buttressing “corks” to the much larger ice sheets upstream. These upstream sheets, in particular the West Antarctic Ice Sheet, contain large volumes of ice above sea level, and their potential collapse into the ocean can raise sea levels by meters over timescales of decades. Measurement of ice shelf melting is very challenging however, due to the large scales of the ice shelves, the depth to the melting front (100’s of meters) and the remote environment. We report here on developments of fiber-optic based measurements techniques (DTS) deployed through very small boreholes in the ice shelf that can remain in place for monitoring for decades and resolve ice melt rates of less than 1 mm/day.

The talk will follow with applications of DTS in restoration efforts of the Devils Hole Pupfish in Death Valley, development of high spatial resolution daily snow cover mapping under dense forest canopies and finally, the use of sUAS to derive high -resolution stream surface mapping for hyporheic exchange estimation.

Tuesday, 12 June 2018, 3:30 PM
Refreshments 3:15 PM
NCAR-Foothills Laboratory • 3450 Mitchell Lane • Bldg 2 Small Seminar (Rm1001)
Webcast: https://ucarconnect.ucar.edu/live