This tweet shows "Glaciologist Princess Elsa" is actually Caltech geophysics PhD student and cryoseismologist Celeste Labedz.
The BBC News article What's a 'Science Princess' doing in an ice field in Alaska? says in a figure caption:
Celeste Labedz had to cut her research trip short as the glacier was too warm.
Question: What risks or problems would a "too warm" glacier pose to a geophysics and cryoseismology based expedition? Might the problem have been more related to safety or to the quality of the data?