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TSHALTAIAGFFA.IIAO.NCBDTCI.IIASOLAL,BAB,CAS,ATDOD.IIASOTBLBOBAOW.IITSOTEOAE.TSTAS-TTAHSLAASFATWCDTTNTD,IIAHRN.RH.IIHAYRTW.TIHTFMCTAC.CATHCATYOP.TINJTEOAR,NIFOCI.TITTOTJ.TESN. > Some Westher Fcs > Flashcards

Some Westher Fcs Flashcards

1
Q

Enhanced greenhouse effect steps 6

A
  1. Human activities -> incr amt of agh gases in Atmos
  2. Incoming shortwave radiation passed thru GH gases in Atmos
  3. Some shortwave rad reflected by earth and Atmos
  4. Most shortwave rad adsorbed by earth surface -> heats up
  5. Warmed earth surface emits long wave rad to Atmos
  6. Incr conc of GH gases in Atmos -> absorb more heat
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2
Q

Impacts of climate change: sea level rise dexa

A

D
Global warming, ice caps melting -> adds volume to sea, levels rise. Higher temp -> sea water expand
Ex
Mean sea levels in Straits of Sg incr at rate of 1.2mm-1.7mm per year, 1975-2009
A
Low lying areas/ coastal areas threatened by floods -> destruction, loss of lives

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3
Q

Impacts of climate change; frequent extreme weather events

A

D
Incr Atmos temp incr chances of natural disasters like heatwaves and droughts. Incr heat -> incr chance of cyclones
Ex
Summer 2003, heatwave across Europe, above avg temp. Heat killed >70k ppl, 13 bil euros financial damage
A
Destruction, loss of lives in unprepared

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4
Q

Impacts of climate change: Lengthening of certain growing seasons

A

D
Incr temps -> more conducive for certain crops. Many weeds pests fungi thrive in warmer temps -> problems
Ex
Europe could have incr in yield of >5% corn, potatoes, rice, wheat in 2050
A
Pos: more food worldwide, incr farmer income
Neg: crop req colder temps decr eg some medicinal plants

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5
Q

Impacts of climate change: Spread of infectious insect borne diseases

A

D
Incr global temps, more places conducive for growth and repro of mosquitoes (thrive hot and humid)
Ex
Study estimated >2bil more ppl at risk of dengue in 2050 compared to 2015
A
Incr spread -> incr fall ill -> loss of lives

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6
Q

International response to climate change: Kyoto protocol

A

Ex
Agreement linked to UNFCCC (United Nations framework convention on climate change) -> int convention to decr lvl of Gh gases in Atmos. Many counties came tgt to sign KP, come up w measures and put into prac.
A
Many counties met or exceed targets eg Finland Greece Ireland. Countries req to monitor and report their emissions
L
Some countries unable to meet emission targets: Austria Spain Denmark

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7
Q

National response to climate change: plant-a-tree program

A

Ex
Started 1971 as tree planting day
by garden city fund
Residents encouraged to donate money to buy a tree/ take part in tree planting events that take place monthly
A
Contributed to est 60k trees yearly by national parks board. Remove Co2 from environment
L
Trees take many years to mature -> pos effects need time to appear. Even fast growing trees like rain trees planted by NParks took 25 years for full height

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8
Q

Variation in solar output 4

A

Varying amt of solar rad due to magnetic field changes
Sunspots:
1. Periods of intense solar activity ->
2. more sunspots ->
3. areas around sun sports rad more e to compensate for lower temps of sunspots ->
4. incr total solar output -> higher global temps

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9
Q

Volcanic eruptions, global warming

A

D
Eruption, large vol of CO2, wv, sulfuric dioxide, dust and ash into Atmos -> reflect solar energy back -> cooling
Ex
Mount Pinatubo Ph 1991 -> 17 mil tonnes of SO2 -> sulfur based particles, spread around earth in two weeks
A
Decr temps in northern hemi by up to 0.6 C (temp)
Temp global cooling until ash and dust settle

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10
Q

Deforestation ex

A

52000 km^2 of forest lost every year between 2000 and 2010

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11
Q

Changing land uses: agriculture exa

A

Cattle farming -> methane as waste gas
Millions of tonnes every year

Use of machinery, livestock (methane), decomp/fertilisers

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12
Q

Changing land uses: industries exa

A

Largest carbon emissions by China and India due to rapid industrialisation

Burning of FFs for e : high carbon content
GH gases as by-products of goods prod

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13
Q

Changing land uses: urbanisation dexa

A

Incr ppl in urban areas

East Timor
25-35% of urbanisation between 2005-2020

Burning FFs for e
Transport
Construction and mat prod

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14
Q

Diurnal temp

A

Difference between max and min temps in ONE DAY

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15
Q

Dew point temp

A

When humidity 100% at max WV (saturated)

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16
Q

Latitude temp exs

A

1N - SG , H-temp, 25-31
51N London, L-temp 11-18

Decr lat -> incr angle of incidence -> heat conc over smaller area -> incr temp

17
Q

Temp factors: Dist from sea exs

A

Dallas: ann temp range 23C, 373.1km
LA: ann temp range 7C, 17.3km

18
Q

Basis of maritime effect

A

LAND HEATS/COOLS FASTER THAN SEA
SEA AIR COOLER/WARMER -> temp of coastal areas

19
Q

Elevation dexa

A

Incr elevation decr mean annual temp

Mexico City: MAT- 16C, 2234m
Monterrey: MAT - 22C, 534m

Decr sun direct ray
Lower air density -> absorb less rad
Less GH gases at incr elevation
Further from earth surface

20
Q

Cloud formation steps 6

A
  1. Water heated by sun
  2. Gain e, evap into WV
  3. Warm air and WV rises
  4. Lower temp and higher alt, rising temp reaches dew point temp and becomes saturation
  5. Cold air meets WV -> condensation on condensation nuclei
  6. Water droplets coalesce, forming clouds
21
Q

Cloud cover presence 5

A

D
1. Less solar rad reaches earth surface
2. Clouds absorb heat from earth surface
3. Clouds reflect incoming solar rad
N
4. Clouds absorb heat rad from earth surface
5. Less heat esc into space

22
Q

NO cloud cover

A

D
1. Large amt of sun rays reach earth
2. Surface heats up quickly -> incr temp
N
1. Heat rad from earth surface able to escape into Atmos
2. Surface cools further

23
Q

Conventional rain 6

A
  1. Suns energy reaches earth
  2. Earth surface heated by sun, heating surr air
  3. Air expands and rises
  4. Air cools, reaches DPT, condensation occurs
  5. Cumulonimbus clouds form
  6. Water droplets become large and heavy -> fall as rain
24
Q

Relief rain 4

A

Water body next to mountain region
1. Warm moist air forces to rise
2. Air rises cools reaches DPT, condensation
3. Water droplets large and heavy enough, fall
4. Air moves to leeward side -> air dry, no rain

25
Q

Southwest monsoon (NE opposite) 4

A

Monsoon formation
1. Diff in pressure between Aus and Central Asia —> Air moves as monsoon winds
2. Winds dry and cold (over cold land)
3. Winds cross equator -> Coriolis effect, deflected RIGHT
4. Winds heat up, warm air picks up moisture traveling over Indian Ocean —> brings rain to Indian sub-continent

June- sept, aus cold

26
Q

Climographs 4/5

A
  1. Avg. temp
  2. Ann. Temp range
  3. Total Ann. Rainfall + dates and numbers
  4. Constant vs distinct wet and dry

Climatic type

TSHALTAIAGFFA.IIAO.NCBDTCI.IIASOLAL,BAB,CAS,ATDOD.IIASOTBLBOBAOW.IITSOTEOAE.TSTAS-TTAHSLAASFATWCDTTNTD,IIAHRN.RH.IIHAYRTW.TIHTFMCTAC.CATHCATYOP.TINJTEOAR,NIFOCI.TITTOTJ.TESN. (28 decks)

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