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Flashcards in Weather And Climate Deck (38):
1

Two conditions required for cloud formation:

Cooling of air and the presence of particles in the air

2

Ms. Relyea was taking a hike, when she looked up into the sky, she saw high, thin white clouds. What is the most likely type of cloud she saw?

Cirrus

3

Places shown on a weather map they have the same temperature are connected by

Isotherms

4

A cloud cover symbol that is 3/4 black and 1/4 white represents

70-80% cloud cover

5

If a cold, dry air mass moves over a region, barometric pressure readings in the area will

Increase

6

The prevailing westerlies, the major wind belts over the continental US, generally push air masses from

West to east

7

During an ice age, earths sea level

Lowers

8

Cool air tends to

Be more dense and flow under warm air

9

The temperature at which water vapor in the air would condense is called

Few point

10

Over the past 200 years, the level of carbon dioxide in the atmosphere has

Increased steadily

11

Some of the factors that effect climate would be ranked in the following order of importance

Latitude, elevation, ocean currents

12

Earths rotation makes global winds curve; this is called the

Coriolis effect

13

When comparing the atmospheres of Venus and Mars to the Earths atmosphere, what happens?

Venus had a denser and Mars grade a less dense atmosphere

14

Isobars are lines on a map joining places that have the same

Air pressure

15

High clouds tend to be made of ________ due to temperature

Ice particles

16

The average year-after-year conditions of temperature, precipitation, winds, and cloud in an area known as it's

Climate

17

How does lake-effect snow form?

Cold, dry air blows over large lakes then over land

18

The climate on the leeward side of a mountain differs from that on the windward side mostly in

The amount of rainfall

19

Explain rainshadow

Air masses that lose moisture due to elevation change

20

Large clouds what often produce thunderstorms are called

Cumulonimbus clouds

21

Small lines at the end of the shaft that represents wind direction on a weather map indicates

Wind speed

22

El Niño is a weather pattern that forms in the _______ and causes _________ weather pattern

Tropical Pacific Ocean; a stormier

23

The greenhouse effect is

The process by which gasses hold heat in the atmosphere

24

The layers of the atmosphere are classified according to changes in

Temperature

25

As you rise upwards in the atmosphere, air pressure

Decreases

26

In North America, a cold dry air mass might originate from ______, while a warm moist air mass might originate from _______

Canada and Alaska; Gulf of Mexico

27

The farther you live from an ocean, the more likely your climate will be a

Dry climate

28

Chlorine atoms in the stratosphere from chemicals like CFCs

Break down ozone into oxygen atoms

29

Climates are classified according to two major factors

Precipitation and temperature

30

When a rapidly moving cold air mass overtakes a slow-moving warm air mass, the result is a

Cold front

31

What percent of our atmosphere is made up of the gases oxygen and nitrogen?

78% nitrogen and 21% oxygen

32

Typical albedo values are ~0.2 for trees and up to 0.9 for dry snow. Albedo is important in understanding climate and climate change because

It indicates the amount of solar radiation reflected off the surface

33

Ozone is normally found most concentrated in the ________ layer of the atmosphere

Stratosphere

34

Ozone is

A form of oxygen with 3 oxygen atoms in each molecule

35

From earth to space, the main layers in our atmosphere are

Troposphere, stratosphere, mesosphere, thermosphere

36

Warm fronts

Advancing warm air displaces cold air

37

Two air masses meet and neither advances into the others territory

Stationary fronts

38

Occluded fronts

Cold air masses overtaking a warm front, wedging the warm air upward