What model of shuttle are we dealing with here? Also how hard would it be to configure the sensors to look for life signs through the blizzard?
I mean in theory we could still pick up data by focusing our IR spectra search on an inverse of this graph
https://pubs.rsc.org/image/art...06756a-f2_hi-res.gif
since that's the IR spectra for ice (in blue) we would get no interference from the blizzard, but it would limit our ability to detect liquid water as well. When you cross reference that with the IR Spectra of Hemogoblin, you'll find that we should be able to locate any humans (and presumably other aliens) in the area, by looking for blank spots in the scan well searching between 1000-2000, specifically near 1600-1700 cm-1
https://www.researchgate.net/f...fiber_fig3_275157451
or atleast find any corpses :)