View
- Term
- Definition
- Both Sides
Study
- All (14)
Shortcut Show
Next
Prev
Flip
ATM OCN 100: Chapter 12
cold air damming |
process by which cold, dry air is forced against the east side of the Appalachian Mountains when strong onshore flow is present from the Atlantic Ocean |
cold air trapping
|
process by which cold air is trapped in the valleys of the Appalachian Mountains while warm air advances northward on either side of the Appalachian |
freezing drizzle |
light misty precipitation droplets with diameters between .2 and .5 mm that freeze on contact with the surface |
ice nuclei |
particles that promote the formation of ice crystals in air or in liquid water; particles generally have a crystalline structure similar to ice |
ice pellets |
liquid drops that have frozen or refrozen; referred to as sleet |
ice storm |
a winter storm in which there is substantial accumulation of freezing rain or freezing drizzle at the surface |
inversion |
an increase of temperature with altitude; represents the opposite of the more common tropospheric situation in which temperature decreases with altitude |
melting level |
the altitude at which falling precipitation changes from the ice phase to liquid drops |
melting process |
the formation of freezing precipitation when snowflakes fall into an atmospheric layer in which the temperature exceeds 0 degrees and continue their fall back into a sub-freezing below 0 celsius layer of air near ground |
sleet |
precipitation consisting of frozen raindrops |
supercool |
the process by which water is cooled to a temperature lower than zero degrees but remains in the liquid state |
supercooled warm rain process |
the process by which tiny cloud droplets in a subfreezing cloud grow to precipitation size by colliding and coalescing with each other |
supercooled water |
water that has a temperature below 0 degrees celsius but is in a liquid state |
warm rain |
rain that forms in the absence of ice particles |