snow cover, river and lake ice Flashcards
snow water equivalent (SWE)
a measure of the water content of the snow; is important for hydrological modeling and runoff precipitation
factors of snow cover monitored by satellites
- snow depth
- extent
- SWE
types of lake ice
- congelation (black ice)
2. snow ice (white)
congelation ice
bottom to surface
snow ice
ice from surface submerged to the bottom
timing of freezeup, breakup, and ice cover duration is governed by
air temp, precipitation, wind speed, & radiation balance
why does the thickness of snow cover matter?
thickness affects the depth and the timing of seasonal freeze & thaw of the ground, permafrost thermal state, and ablation of sea ice and glaciers.
which hemisphere has the highest variation in seasonal snow cover?
Northern Hemisphere