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17 Cards in this Set
- Front
- Back
Three main types of deserts in California. |
Mono Lake, Death Valley, Mojave National Preserve. |
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Desert are on the ____ of mountain ranges. ___ and ___ are what controls the California Deserts.
Wind pushes up the mountains. It gets ___ as you move up mountains and the __ makes it lose moisture, so it begins to drop their water. The backside of the mountain loses water. |
back side; Orographic lifting; Rain Shadow Effects; colder; cold; |
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Most storms come from ___ and ___. Not all though. Some come from the South from the Gulf of Mexico. |
West and Northwest |
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__ are anomalies. CA gets hit with it periodically. Tropical storms sometimes waterhoses itself to CA. 10 feet of water is possible. Account for about __ of CA's annual total water supply. Responsible for most major severe precipitation events and floods. |
Atmospheric River; 40%; |
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Water that does get to the deserts typically flows to the low spots forming ___. They dry and leave behind __ and normally soluble minerals at or near surface in deserts. These are __ or __.
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ephemeral lakes; salts; salt flats or playas; |
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What do you need to make a sand dune? |
1. Winds of sufficient speed (to transport grains) 2. Little or no vegetation (because plant roots are effective at anchoring & stabilizing sand. This is why you don't destroy vegetation that is growing on sand dunes!)
3. Need SAND! |
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Why should I care about how a sand dune works?*
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Because some day you may buy a house or develop property and Sometimes unintended consequences can bite you.
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Deserts have water issues with ___ in steep-walled desert canyons. |
flash floods; |
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Castle Bravo the first U.S. test of a dry fuel thermonuclear hydrogen bomb March 1, 1954 at Bikini Atoll, Marshall Islands. Radioactive stuff has gotten on ocean. What is the point? |
The recovery capacity of the planet is high. Everything turned out okay. |
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Seasonal weather storms affect the North and South coastlines differently. ___ affects the North coastline surf while ___ affects the South coastline surf. Oceans have complex circulatory systems. The ocean is homogeneous. |
Winter storms; Summer storms |
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Lots of action under water. ____ “Hijack” sand/dirt/mud and transport offshore to great depths.They go from shallow near shore to REALLY DEEP.
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Submarine canyons |
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As water reaches towards shore, velocity ___ and the height of surf waves __. As the wave begins to touch the bottom of the ocean more, the wavelength ___. Breakers form as approaching shore. |
decrease; increase; Shortens; |
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Tsunamis travel 200 to 400+ mph in open ocean. (NOAA). They slow down and pile up when they “feel” the bottom of the ocean and will hit the shore at around 20 mph.
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Over geologic time __ beats rock! Ex. Half Moon Bay and state highway.
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water |
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During winter storms, waves move much of the sand to offshore bars. |
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Where does the sand come from? What are unintended consequences of damming up rivers and streams?
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Rivers and streams; Beach erosion; |
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longshore currents are created by obliquely breaking waves. These currents transfer sand along the beach and in the surf zone. |
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