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ATSC 113 Snow Midterm with 100- correct answers (latest update)
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ATSC 113 Snow Midterm with 100- correct answers (latest update)
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ATSC 113 SnowMidterm 2024-2025
with 100% correct
answers (latest
update)
high pressure system - answer where pressure is higher than
surrounding areas
high pressure ridge - answer
weather associated with high pressure - answer clear skies, dry and lack
of percipitation
flat light - answer when the light makes it hard to see hazards in snow
clearly
air pressure ______ as height increases - answer decreases
wind barbs - answer point in the direction the wind is blowing, the "flags"
are where it is coming from
hazards from light winds - answer none
light winds on map reperesented by - answer light colours
, interpolation - answer using two temperatures to interpolate the
temperature in the middle
factors that affect heating and cooling of the surface - answer sun angle,
cloud coverage, wind speed
snowpack evolution - answer Water vapour moves within the snowpack
from warmer to colder temperature. The speed at which it moves is
related to the temperature difference. Since the bottom of the snowpack
is warmer than the top, the water vapour within the snowpack generally
travels upwards
Faceted Crystal formation conditions - answer large temperature
gradient, lots of space between snow crystals
Rounded crystals formation conditions - answer small temperature
gradient and tightly packed crystals
depth hoar - answer snow crystals near the bottom of the snow pack that
are angular and large
surface hoar - answer frozen dew formed on top of snow
surface hoar hazards - answer when it is buried, it becomes a very weak
layer that can break and cause a a slab avalanche
surface hoar formation - answer clear skies, calm winds, relatively warm
temps at night. or during the day in shade on north facing slopes
snow pits - answer pits dug to see the conditions of the snow
weakly-bonded snow layer - answer unstable and likely to fail. Tends to
be low density and not compacted
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