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Twin Otter airplane arriving at Yesterday Camp amidst lower-tangetial arc.

Twin Otter airplane arriving at Yesterday Camp amidst lower-tangetial arc.
Twin Otter airplane arriving at Yesterday Camp amidst lower-tangetial arc.
Twin Otter airplane arriving at Yesterday Camp amidst lower-tangetial arc.
Twin Otter airplane arriving at Yesterday Camp amidst lower-tangetial arc.
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Stephen, Ralph
Twin Otter airplane arriving at Yesterday Camp amidst lower-tangetial arc.
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11/20/2014
graphics/R_Stephen/DSCN1368.JPG
Image Of the Day caption:
Sun halos and a rare lower-tangential arc (bright area above the wing) surround a Twin Otter aircraft carrying equipment and personnel to Antarcticas Yesterday Campso-named because it sits just east of the International Dateline. There, Rick Aster (Colorado State Univ.), Peter Bromirski (Scripps Institution of Oceanography), Doug Bloomquist (PASSCAL) and Ralph Stephen (WHOI) installed a seismometer as part of a project to measure vibration in the ice caused by wind and waves. Overall, the team installed 34 broadband seismometers on the Ross Ice Shelf to collect data over a two-year period to identify areas at risk of ice shelf collapse.
Photo by Ralph Stephen
© Woods Hole Oceanographic Institution
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