The heat budget of the earth

Question 1ExpertLevel 3

In the hundred unit heat budget model the return of thirty five units to space is the result of which combined process?

AOnly surface emissionBReflection by clouds surface and atmospheric scatteringCOnly oceanic absorptionDOnly release of latent heat

Question 2ExpertLevel 3

If reflection by clouds decreases but surface albedo remains the same what happens to net solar absorption?

ANet absorption will decreaseBNet absorption will remain unchangedCNet absorption will increaseDTerrestrial radiation will end

Question 3ExpertLevel 3

Why is the atmosphere relatively transparent to solar shortwaves and more absorbing to terrestrial longwaves?

ABecause Earth is hotter than the SunBBecause greenhouse gas absorption is wavelength selectiveCBecause clouds stop only soundDBecause oceans do not form longwaves

Question 4ExpertLevel 3

What is the main importance of the atmospheric window in the heat budget?

AIt allows some longwave radiation to escape directly to spaceBIt brings all solar rays to the surfaceCIt stops clouds from formingDIt makes ocean temperature zero

Question 5ExpertLevel 3

When the surface absorbs fifty one units of energy why is all of it not used only to raise temperature?

ABecause part of energy goes into evaporation convection and longwave emissionBBecause energy is immediately destroyedCBecause the surface cannot touch energyDBecause the Sun pulls the energy back

Question 6ExpertLevel 3

If net radiation is positive in an area but temperature is not rising rapidly what is the most suitable reason?

AAll energy is being reflectedBExtra energy is being used in evaporation or heat transferCSolar radiation did not reach EarthDThe atmosphere is completely absent

Question 7ExpertLevel 3

Why does a dry and clear atmosphere cool the surface rapidly at night?

ALack of water vapour and clouds reduces counter radiationBThe Sun moves very far at nightCThe surface stops emitting radiationDOceans create all heat

Question 8ExpertLevel 3

If albedo decreases and evaporation also decreases what can be the combined effect on local temperature?

ACooling tendency will increaseBWarming tendency may strengthenCEnergy balance will become zeroDTerrestrial radiation will be impossible

Question 9ExpertLevel 3

Why is ice albedo feedback called positive feedback in the heat budget?

ABecause initial ice loss can further increase absorption and meltingBBecause ice always produces energyCBecause albedo has no relation with temperatureDBecause melting stops solar energy

Question 10ExpertLevel 3

In which situation can clouds show more warming effect than cooling effect in the heat budget?

AWhen their longwave trapping is more effective than shortwave reflectionBWhen they return all solar energyCWhen they remove the atmosphereDWhen they make the solar constant zero

Question 11ExpertLevel 3

Why is climate at high latitudes not determined only by local radiation despite low insolation?

ABecause winds and ocean currents bring external heatBBecause insolation is always high at polesCBecause longwave radiation does not occur thereDBecause poles are sources of the Sun

Question 12ExpertLevel 3

If oceanic heat transport weakens what may happen to polar energy deficit?

AThe deficit will decreaseBThe deficit may become regionally more effectiveCSolar energy will start formingDAlbedo will become zero

Question 13ExpertLevel 3

How does a low solar angle create a double reduction in the heat budget?

AEnergy spreads over a larger area and atmospheric path is longerBEnergy goes directly to Earth's coreCThe Sun starts giving longwave radiationDSurface produces solar energy

Question 14ExpertLevel 3

What is the heat budget based reason for higher night temperature in an urban heat island?

AStored daytime heat in paved surfaces is slowly released at nightBThe Sun shines over the city at nightCTerrestrial radiation does not occur in citiesDClouds form only over cities

Question 15ExpertLevel 3

Why is local warming after deforestation not always straightforward?

ABecause albedo evapotranspiration soil moisture and heat storage change togetherBBecause deforestation stops the SunCBecause forests are unrelated to energyDBecause surface emits no radiation

Question 16ExpertLevel 3

If the surface is moist why can sensible heat flux be lower?

ABecause a large part of available energy can go into latent heat fluxBBecause moisture destroys solar energyCBecause moisture stops the surface from radiationDBecause conduction stops

Question 17ExpertLevel 3

When is the importance of latent heat most clearly seen in the heat budget?

AWhen evaporation takes energy from surface and condensation releases it in atmosphereBWhen rocks become hardCWhen a river deposits sedimentDWhen solar constant does not change

Question 18ExpertLevel 3

If greenhouse gases increase and albedo also increases why can the total effect not be immediately fixed?

ABecause one can reduce outgoing energy and the other can reduce incoming absorptionBBecause both always increase temperatureCBecause both always reduce temperatureDBecause both have no relation with energy

Question 19ExpertLevel 3

Why can the effect of aerosols in the heat budget be mixed?

ASome particles reflect shortwave radiation and some absorb energyBAll particles create the SunCParticles turn longwave radiation into soilDParticles stop Earth's orbit

Question 20ExpertLevel 3

In which example is understanding surface energy partitioning more important than only net energy balance?

AComparing irrigated field and dry paved ground under same insolationBMeasuring distance of Sun and MoonCFinding earthquake epicentreDMemorising ocean salinity names

Question 21ExpertLevel 3

Why does long term global heat balance not mean locally constant temperature?

ABecause local clouds surface moisture and winds keep changingBBecause global balance is a wrong conceptCBecause Earth emits no radiationDBecause all places are identical

Question 22ExpertLevel 3

If surface albedo is low and heat capacity is high what daytime temperature result is possible?

AMore energy will be absorbed but temperature rise may be slowBEnergy reflection will be one hundred percentCTemperature will become zero immediatelyDSolar radiation will not reach

Question 23ExpertLevel 3

Why can the surface remain warmer even when terrestrial radiation increases?

AIf counter radiation and incoming energy are also highBBecause radiation has no relation with temperatureCBecause surface loses no energyDBecause the Sun gives longwave radiation

Question 24ExpertLevel 3

Why are both strong daytime heating and strong night cooling possible in a cloudless desert?

AGreater surface absorption by day and weak counter radiation at nightBSun absent by day and clouds present at nightCSand does not emit terrestrial radiationDWater vapour completely stops longwaves

Question 25ExpertLevel 3

Which type of change can create a negative energy imbalance in the Earth system?

AAlbedo increases greatly and absorbed shortwave decreasesBGreenhouse absorption increases greatlyCClouds trap longwave at nightDOceans store more heat

Quiz this set

In the hundred unit heat budget model the return of thirty five units to space is the result of which combined process?

If reflection by clouds decreases but surface albedo remains the same what happens to net solar absorption?

Why is the atmosphere relatively transparent to solar shortwaves and more absorbing to terrestrial longwaves?

What is the main importance of the atmospheric window in the heat budget?

When the surface absorbs fifty one units of energy why is all of it not used only to raise temperature?

If net radiation is positive in an area but temperature is not rising rapidly what is the most suitable reason?

Why does a dry and clear atmosphere cool the surface rapidly at night?

If albedo decreases and evaporation also decreases what can be the combined effect on local temperature?

Why is ice albedo feedback called positive feedback in the heat budget?

In which situation can clouds show more warming effect than cooling effect in the heat budget?

Why is climate at high latitudes not determined only by local radiation despite low insolation?

If oceanic heat transport weakens what may happen to polar energy deficit?

How does a low solar angle create a double reduction in the heat budget?

What is the heat budget based reason for higher night temperature in an urban heat island?

Why is local warming after deforestation not always straightforward?

If the surface is moist why can sensible heat flux be lower?

When is the importance of latent heat most clearly seen in the heat budget?

If greenhouse gases increase and albedo also increases why can the total effect not be immediately fixed?

Why can the effect of aerosols in the heat budget be mixed?

In which example is understanding surface energy partitioning more important than only net energy balance?

Why does long term global heat balance not mean locally constant temperature?

If surface albedo is low and heat capacity is high what daytime temperature result is possible?

Why can the surface remain warmer even when terrestrial radiation increases?

Why are both strong daytime heating and strong night cooling possible in a cloudless desert?

Which type of change can create a negative energy imbalance in the Earth system?

Quiz result

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The heat budget of the earth

Quiz this set

In the hundred unit heat budget model the return of thirty five units to space is the result of which combined process?

If reflection by clouds decreases but surface albedo remains the same what happens to net solar absorption?

Why is the atmosphere relatively transparent to solar shortwaves and more absorbing to terrestrial longwaves?

What is the main importance of the atmospheric window in the heat budget?

When the surface absorbs fifty one units of energy why is all of it not used only to raise temperature?

If net radiation is positive in an area but temperature is not rising rapidly what is the most suitable reason?

Why does a dry and clear atmosphere cool the surface rapidly at night?

If albedo decreases and evaporation also decreases what can be the combined effect on local temperature?

Why is ice albedo feedback called positive feedback in the heat budget?

In which situation can clouds show more warming effect than cooling effect in the heat budget?

Why is climate at high latitudes not determined only by local radiation despite low insolation?

If oceanic heat transport weakens what may happen to polar energy deficit?

How does a low solar angle create a double reduction in the heat budget?

What is the heat budget based reason for higher night temperature in an urban heat island?

Why is local warming after deforestation not always straightforward?

If the surface is moist why can sensible heat flux be lower?

When is the importance of latent heat most clearly seen in the heat budget?

If greenhouse gases increase and albedo also increases why can the total effect not be immediately fixed?

Why can the effect of aerosols in the heat budget be mixed?

In which example is understanding surface energy partitioning more important than only net energy balance?

Why does long term global heat balance not mean locally constant temperature?

If surface albedo is low and heat capacity is high what daytime temperature result is possible?

Why can the surface remain warmer even when terrestrial radiation increases?

Why are both strong daytime heating and strong night cooling possible in a cloudless desert?

Which type of change can create a negative energy imbalance in the Earth system?

Quiz result

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