Term
| What is the Prefix for Rain Producing clouds? |
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Definition
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Term
| How is Advection fog formed? |
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Definition
| By the slow passage of relatively warm, moist, stable aire over a colder surface. The key is Horizontal movement |
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Term
| What is the Prefix associated with High level clouds? With middle level clouds? Low Level clouds? |
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Definition
High- Cirro
Middle- alto
Low- Stratus or culumbus (or combo) |
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Term
| Name the two precipitation formation processes. Which is associated with cold air, and which is associated with warmer (cool( air? |
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Definition
1. Collision and Coalascence- Cool air (liquid water droplets above freezing)
2. Bergeron Process- Cold air (ice crystals, below freezing) |
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Term
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Definition
| Extremely heavy liquid precipitation. With a fall rate >_(equal too) 5in/hr |
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Term
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Definition
| Starts out in cloud as a snowflake, growing in size, falling as snowflake, at some point on way down go in to warmer temperatures then refreeze when it goes into lower temperatures. (Look at a diagram on sleet and temperature profile) |
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Term
| What are the 2 most common cloud seeding materials? |
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Definition
-1. Dry ice and
-2. Silver iodide |
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Term
| What is the term given for dry air infiltration into a moist parcel of air? |
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Definition
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Term
| Name the three lapse rates associated with adiabatic temperature change. Which are constant and which are variable? |
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Definition
-Environmental Lapse Rate (ELR), variable use weather balloon
-Dry ADIABATIC Lapse Rate (DALR), constant
-Wet adiabatic Lapse Rate (WALR or MALR), variable |
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Term
| If a parcel of air rises high enough, it will eventually cool to its dew point temp. What is the name given to the altitude where this occurs? |
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Definition
| -Condensation lifting level |
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Term
| What are the 3 units associated with atmospheric pressure |
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Definition
1. Millibars (mb)
2. Inches of Mercury (in Hg)
3. Hectopascals |
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Term
| Cold air is Higher pressure or Lower Pressure |
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Definition
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Term
| Warm air is Higher pressure or Lower Pressure |
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Definition
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Term
| Moist air is Higher pressure or Lower Pressure |
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Definition
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Term
Which is lighter than which?
Moist air is lighter than dry air
or
Dry air is lighter thsn moist air |
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Definition
| Moist air is lighter than dry air |
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Term
| Wind speed and direction are controlled by what three forces? |
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Definition
| -Pressure gradient force, Coriolis force (defection? of winds, friction (at the surface) |
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Term
| What type of pressure system is located near 30 degrees North and South? |
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Definition
| -High pressure system (Subtropical high) |
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Term
| What is the name of the large low pressure system that migrates within the tropical latitudes and is associated with high precipitation? |
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Definition
- Inter tropical convergence zone (ITCZ)
-Most intense radiation
-Peek uplift |
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Term
| 3 cell model (know what the cells are Hadley, sub polar, polar) know about each, know why winds are going the way they are going, polar easterlys. |
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Definition
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Term
| ____ are the lines that connect equal points of pressure |
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Definition
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Term
| A HIGH PRESSURE SYSTEM IS ASSOCIATED WITH WHAT TYPE OF PRESSURE GRADIATNT? |
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Definition
| -Weak, calm winds, not much pressure gradient, Not very steep |
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Term
| What cause the Coriolis force? |
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Definition
| -The rotation of the Earth |
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Term
| Winds are deflected in what direction in the Northern Hemisphere? In the southern hemisphere |
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Definition
-Right: in the northern hemisphere
-Left: in the southern hemisphere |
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Term
| For Coriolis force it is 0 at the equator strongest at the poles |
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Definition
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Term
| The balance between Coriolis force and the pressure gradient force causes what type of wind? |
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Definition
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Term
| What are the 4 lifting mechanisms: look at pictures and know about each |
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Definition
-Convection
-Convergence
-Frontal lifting
-Orographic lifting |
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Term
| What is the standard sea level pressure? What rate is used to adjust different elevations to sea level? |
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Definition
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Term
If unsaturated air at 25 degrees C were to rise, what would its temp be at a heigh of 1500m? If the dew point temp at the lifting condensation level is 5 degrees C, at what elevation would clouds begin to form?
What temperature would the above parcel of air be at 3000m? Assume WALR of 5 degrees C/1000m |
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Definition
1st part: 25-15=10 degrees celcius
2nd part: 2000m
0 degrees celsius
(look at Extra Credit paper) |
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