Taylor Glacier Sank 15 Millimeters and Slowed 10% During 2018 Brine Outflow
Updated
Updated · spacedaily.com · Jul 29
Taylor Glacier Sank 15 Millimeters and Slowed 10% During 2018 Brine Outflow
1 articles · Updated · spacedaily.com · Jul 29
Summary
A 2018 Taylor Glacier brine release coincided with a roughly 15-millimeter surface drop and a velocity slowdown to 4.6 meters a year from 5.0, according to a short Antarctic Science note.
Three records captured the event by chance: a GPS station, a daily time-lapse camera, and a thermistor string in Lake Bonney 150 meters from the glacier front. Visible discharge began on Sept. 10 and persisted intermittently into mid-October.
Lake Bonney temperatures fell as much as 1.5 degrees Celsius below the seasonal median at 17.89 meters depth, matching the density layer where subglacial brine is expected to enter along the glacier front.
The authors say the measurements support pressure-driven brine movement inferred in earlier work, but do not prove what triggers each outflow because the evidence comes from one event with sparse spatial coverage.
That leaves a broader question open: whether expanded high-frequency monitoring can show how often Taylor Glacier vents its oxygen-poor, iron-rich brine system—an analogue for icy worlds beneath frozen surfaces.
What unseen forces truly trigger Taylor Glacier's hidden plumbing, and could this rare brine release rewrite our understanding of subglacial mechanics?
Could the mysterious pressure driving Blood Falls' eerie red discharge hold the ultimate secret to finding alien life on icy moons?