[mturmon]

Snow is really important. It is quantified as “SWE” or snow water equivalent, the amount of water that would be released when the snow melts.

SWE is monitored by satellites, aircraft, and by in situ measurements like from snow pillows. In California, the state DWR tracks SWE to estimate reservoir influx.

More: https://aso.jpl.nasa.gov

[benj111]

Thanks, didn't realise snow pillows were a thing.

https://en.m.wikipedia.org/wiki/Snow_pillow