Chapter 4 Flashcards
Tropopause
The buffer layer between the troposphere and stratosphere temperature no longer decreases with altitude it flips and increases with altitude
Stratosphere
Above the Troposphere, the Ozone layer is in this atmosphere. The Ozone traps the high energy radiation of the sun holding some heat protecting the Troposphere and Earth’s surface from this radiation which is why temperature increases 20-50 Km from Earth’s surface
Mesosphere
80 KM above Earth’s surface the area where meteors usually burn up
Thermosphere
Thinnest gas layer located hundred and 110 KM above earth. Auroras is take place and space shuttles orbit also known as the Ionosphere
Ionosphere
Another name for the thermosphere they’re called ionosphere because of the ionization that takes place in this region. This region absorbs most of the energetic charged particles such as protons and electrons (solar wind) from the sun. It reflects radio waves that make long-distance radio communication possible
Weather
Day to day properties a.k.a. wind speed, direction, temperature, amount of sunlight, pressure and humidity
Climate
Constant patterns that prevail for 30 or more years
Meteorologist
Scientists who study climate and weather
prevailing winds
Belts of air that distributes heat and moisture unevenly
Convection currents
When solar energy warms earth surface. They he is transferred to the atmosphere by radiation heating. The warming gases expand and become less dense and rises creating vertical currents a.k.a. convection currents. (they hold lots of moisture compared to the surrounding air) as these large masses of warm moist air rises cool air flows along Earth’s surface into the area where the warm air was located. This flowing air is one way that surface winds are created.
Horizontal Airflow
Is one way that surface winds are created
Dewpoint
Is when warm moist air rises into cooler atmospheres where it cools to dew point. It is the temperature at which water vapor condenses into liquid water
Precipitation
When condensation drops get so big they can no longer be held by the convection in Earth’s atmosphere and fall
Convection Cell
Is one air warms and gatherers moisture causing it to rise then the water vapor condenses to liquid (condensation and precipitation occur). He is released into space and cool dry air is a knitted the denser air descends (cool dry air) the air is then pushed by surface winds across the warm grounds and the process repeats
Hadley Cells
starts it’s cycle over the equator wear warm moist air evaporates and rises in the atmosphere the precipitation in the region is one cause of the abundant Equatorial rainforests. The cold dry air then descend about 30° south and north of the equator forming the belts of the desert scene around earth at those latitudes and the cycle repeats.
Wind
air that is moving as the result of the unequal heating of Earth’s atmosphere. Part of the earths circulatory system moves: heat, moisture, soil, pollution around the planet
Trade Winds
blow between 30° latitude at the equator are steady and strong and travel at about the speed of about 11–13 mph
North East Tradewinds
trade winds that blow from the north east
South East Tradewinds
trade winds that blow from the south east
Westerly
moving air mass moves south and west in the northern hemisphere and north and west in the southern hemisphere near the equator. The movement of air that accounts for the westerlies is the Ferrell sell opposite of the Hadley cell.
Polar easterlies
winds that blow between latitudes of 60° at the north pole and winds that blow between latitudes of 60° at the south pole, they blow between the south and east
Horse latitudes
the region in between 30° to 35° north and 30° and 35° south of the equator
Doldrums
still air near the equator (because air at these locations is constantly rising and is not blowing) exist between 5° north and 5° south of the equator known as the ITCZ
Jet Stream
(moving air mass) high – speed currents of when that occur in the upper troposphere
Monsoons
seasonal winds that are usually accompanied by very heavy rainfall caused since the land heats up and cools down more quickly than the water does land heats quickly and warm dry air rises rising warm air front cools, forms clouds, precipitation occurs a cold front is created colder moist air moves into replace the rising warm air
Rainshadow effect
if air is forced her eyes it will pool and water will precipitate out of it onto the ocean side of a mountain it will become devoid of moisture as it passes over to the other side of the mountain the side of the precipitation is called the Windward side the side of the arid dried clothes/wind side is the Leeward side
Hurricanes
have strong winds (130 through 400 km/hr) rotating winds remove water vapor from the ocean surface, the energy helps increase windspeed
Typhoons
called this in the Pacific ocean but are actually hurricanes
They have more energy than a nuclear explosion but the Air Force is really slowly so the damage is less concentrated called this in the Atlantic Ocean
El Niño
climate variation that occurs in the Pacific ocean about every seven years they (trade winds) reverse or halt the surface waters of the Pacific away from the West Coast of central and south America. Resulting in a distraction of the Thermohaline Circulation. Northern US and Canada- warmer winters and a less intense hurricane season. Eastern regions of the US and Peru, Ecuador= usually dry now lots of rainfall. Philippines, Indonesia, Australia= drier than normal
Seawater
world’s oceans salinity of 3.5%. The most Celine open C is the Red Sea higher temperatures and confined circulation results in higher rates of surface evaporation
Freshwater
minimal quantities of dissolved salts comes from precipitation
Watershed
when a land area drains into a particular stream
Deltas
landforms made of deposited sediments, they are created when a river is a drop their set a Mentry load as they meet the ocean because there callosity decreases significantly at this junction
Estuaries
where the “arm” of the sea extenze inland to meet the mouth of a river rich with plans and species because of the fresh water which has high concentrations of nutrients and sediments shallow water and it fairly warm animals and plants in this area receive lots of sunlight
Littoral Zone
begins with the very shallow water at the Shoreline. Plants and animals that reside in the littoral zone receive abundant sunlight. The end of this zone is defined as the depth at which a rooted plants stop growing.
Limnetic Zone
surface of open water, the reason that extends to the depth that sunlight can penetrate. Organisms that are residents in this zone are short-lived and rely on sunlight to carry out photosynthesis
Profundal zone
water that is too deep for sunlight to penetrate. Because the Profundal zone is an aphotic zone (A zone that late cannot reach), Photosynthesizing plants or animals cannot live in this region
Benthic zone
The deepest layer in a body of water, characterized by very low temperatures and low oxygen levels
Coastal zone
this zone consists of the ocean water closest to lands. Usually it is defined as being between the shower and the end of the continental shelf.
Euphotic zone
the photic, upper layers of water. The Euphotic zone is the warmest region of ocean water, this zone also has the highest levels of dissolved oxygen
Bathyal zone
The middle region, this zone receives insufficient light for photosynthesis and is colder then the
Euphotic zone
Abyssal zone
this is the deepest region of the ocean. This zone is marked by extremely cold temperatures and a very low levels of dissolved oxygen, but very high levels of nutrients because of the decaying plant and animal matter that syncs down from the zones above
Epilimnoin
The uppermost and thus most oxygenated layer in freshwater
Hypolimnion
The lower colder and denser layer of freshwater
Thermocline
the demacration line between the Epilimnoin and Hypolimnion at which the temperature shifts dramatically in freshwater
Barrier islands
certain landforms that lie off coastal shores because barrier islands are created by the build up of deposited settlements their boundaries are constantly shifting as water moves around them, spits of lands are generally the first hit by offshore storms and they are very important buffers up for the shoreline behind them