221 study this and cheat sheet Flashcards

(38 cards)

1
Q

surface station

A
  • a weather observing location that reports weather conditions
  • show temperature, pressure, wind, radiation, turbidity
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2
Q

IPCC SROC

A
  • special report on the ocean and cryosphere in a changing climate
  • 2019
  • Observed changes and impacts, projected changes and risks, and implementing responses to ocean and cryosphere change
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3
Q

temperature

A
  • the sensible heat at a given location
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4
Q

marine observations

A
  • provide current information on the Ocean water
  • info on sea surface temperature, surface winds, marine weather
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5
Q

moisture

A
  • the precipitation and humidity
  • the precipitation is water, in liquid or solid form, that falls from the atmosphere and reaches the earth
  • humidity is the amount of water vapor in an air mass at a given time
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6
Q

pressure

A
  • the weight exerted by an air mass
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7
Q

solar energy

A
  • energy from the sun that is transformed into heat at or near the earth’s surface
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8
Q

radiation

A
  • Can be absorbed or emitted by all matter, depending on temperature and “emissivity” of the material
  • All objects warmer than 0 Kelvin emit radiation
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9
Q

Insolation

A
  • The amount of incoming solar radiation
  • not equal everywhere on Earth
  • Amount depends on the intensity and duration of radiation from the sun
  • these depend on the number of daylight hours and angle of the sun’s ray
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10
Q

three ways that precipitation can occur

A
  1. orographical- warm moist air rises over hills
  2. convectional- rising moist air that cools down
  3. cyclonic- cool and warm air masses meet
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11
Q

jet streams

A
  • flow from west to east
  • guide movement of weather systems
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12
Q

shortwave vs longwave radiation

A
  • Shortwave radiation refers to high-energy radiation with shorter wavelengths (sun)
  • Longwave radiation refers to lower-energy radiation with longer wavelengths (Earth)
  • only shortwave is visable
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13
Q

high emission scenario vs low emission scenario

A
  • high emission scenarios project continued, rapid increase in greenhouse gas emissions
    • Ex: RCP8.5
  • low emission scenarios look at substantial and substained reduction in greenhouse gas emission
    • RCP2.6
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14
Q

why are Temperatures heavily moderated by large bodies of water?

A
  • Some earth surface materials (like water) store solar energy more effectively than others
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15
Q

is cold or warm water more dense?

A
  • cold water
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16
Q

energy balance

A
  • the equilibrium between the amount of solar energy that Earth receives from the sun (incoming radiation) and the amount of energy it radiates back into space (outgoing radiation)
17
Q

outgoing longwave radiation

A
  • the heat that Earth radiates back into space
  • differences in surface temperature makes OLR different across world
  • determined by cloud amount and height, and surface temperature
18
Q

heat transfer

A
  • Heat transfers in air and ocean, which balances the surplus of energy in the tropics and the deficit of energy at the poles
19
Q

greenhouse effect

A
  • Natural process
  • Certain gases in the Earth’s atmosphere trap heat from the sun, warming the planet’s surface
20
Q

keeling curve

A
  • A graph that shows us the concentration of carbon dioxide in parts per million
  • Observed in Mauna Loa, Hawaii, where the Earth’s air is sampled
  • concentration rises throughout the year, but then decreased in September
  • This is because in the fall, plants decay and decompose, releasing CO2
  • the entire curve has been increasing exponentially
21
Q

albedo

A
  • how reflective a surface is
  • Earth’s albedo is reflected by clouds, aerosols, and the surface
  • Ex: snow and ice have a high albedo and water has a lower one, absorbs more of the sun’s energy
  • High allbedo surfaces bounce sunlight back
  • about .30 for Earth as a whole
22
Q

what temperature water holds more gas?

23
Q

ocean acidification

A
  • A decrease in ocean pH over decades or more that is caused primarily by uptake of CO2 from the atmosphere (CO2 reacts with seawater to form carbonic acid)
  • Because human activities are releasing CO2 into the atmosphere very quickly, the ocean is taking up CO2 faster today than it has in the past
24
Q

plate tectonic theory

A
  • Theory that Earth is composed of numerous plates that
    move independently of one another at varying speeds, over the earth’s surface
25
ice albedo positive feedback
- Cooling produces more ice and snow cover, which further cools the Earth - Warming reduces the ice and snow cover, which further enhances the warming
26
last glacial maximum
- A period in Earth's climate history when ice sheets were at their maximum extension, between about 26,500 and 18,000 years ago - Vast ice sheets covered much of North America, northern Europe and Asia
27
holocene
- A period from about 11,500 years ago to present, characterized by relatively stable warm climate
28
6 land biomes
- Rainforests, deserts, grasslands, deciduous forests, boreal forests, tundra
29
2 water biomes
- marine (saltwater) and freshwater
30
phytoplankton
- absorb CO2 through the atmosphere through photosynthesis - when they die, the CO2 sinks to the ocean floor and reenters the atmosphere - this is called the biological pump
31
zooplankton
- eat phytoplankton and add more carbon to the ocean - make the ocean a carbon sink
32
sunspot activity
- more sunspots deliver more energy to the atmosphere, so that global temperatures should rise - A spot or patch appearing from time to time on the sun's surface - Can fluctuate year to year, and change all the time
33
Global Dimming
- A gradual decrease in the amount of sunlight reaching the Earth's surface - Anthropogenic aerosols are major cause for this anomaly
34
global brightening
- As air pollution has decreased in many areas, more sunlight is now reaching the planet, causing a "brightening" effect - considered better than global dimming because brighening is associated with a reduction is atmospheric aerosols
35
kelvin boiling of water, freezing of water , and absolute 0
- boiling: 373.15 - freezing: 273.15 - absolute 0:0
36
Celcius boiling of water, freezing of water , and absolute 0
- boiling: 100 - freezing: 0 - absolute 0: -273
37
Fahrenheit boiling of water, freezing of water , and absolute 0
- boiling: 212 - freezing: 32 - absolute 0: -460
38
CO2 emission by source and from fossil fuel
- from source: land use and coal - from fossil fuel: electricity generation and heating