EAE2111 - Exam Preparation - 1
No description yet. This curated deck is ready for daily study.
Card preview (24)
<p><strong><span>How easily does visible light pass through the atmosphere?</span></strong></p>
<p><span>The atmosphere is largely transparent to visible light.<br></br>(i.e. easily)</span></p> <p><span>EAE2111 4aa</span></p>
<p><strong><span>What are dominant absorbers of longwave radiation?</span></strong></p>
<p><span>Water vapour and CO₂</span></p> <p><span>EAE2111 4ab</span></p>
<p><strong><span>What determines the solar radiation at a given time and location?</span></strong></p>
<ul>Time of year<li>Time of day</li><li>Transparency of atmoshpere</li></ul> <p><span>EAE2111 4ac</span></p>
<p><strong><span>What is the largest control of spatial variability of atmospheric emissivity?</span></strong></p>
<p><span>Moisture</span></p> <p><span>EAE2111 4ad</span></p>
<p><strong><span>Amount of energy at the surface is always partitioned into?</span></strong></p> <p>3 points.</p>
<ul> <li>Latent heat(LE)</li> <li>Sensible heat(H)</li> <li>Soil heat flux(G)</li></ul> <p><span>EAE2111 4ae</span></p>
<p><strong><span>Where is there consistently an energy deficit and energy surplus on earth?</span></strong></p>
<p><span>Equator (surplus)<br></br>Poles (deficit)</span></p> <p><span>EAE2111 4af</span></p>
<p><strong><span>When does condensation occur?</span></strong></p>
<p><span>At saturation</span></p> <p><span>EAE2111 4ag</span></p>
<p><strong><span>What is the Bowen ratio?</span></strong></p>
<p><span>Measure of how much energy goes into sensible vs latent heat.<br></br>B=H/LE</span></p> <p><span>EAE2111 4ah</span></p>
<p><strong><span>What does a Bowen ratio of <1 mean?</span></strong></p>
<p><span>Most of the energy is going into latent heat so it will be cooler and mistier than if the ratio was>1</span></p> <p><span>EAE2111 4ai</span></p>
<p><strong><span>What does a Bowen ratio> 1 mean?</span></strong></p>
<p><span>It will be dryer and warmer than if it was less than one.</span></p> <p><span>EAE2111 4aj</span></p>
<p><strong><span>What is convection?</span></strong></p>
<p><span>The transfer of energy by mass motions within a fluid or gas, resulting in actual transport of energy.</span></p> <p><span>EAE2111 4ak</span></p>
<p><strong><span>What is conduction?</span></strong></p>
<p><span>The transfer of energy in a substance by means of molecular excitation without any net external motion</span></p> <p><span>EAE2111 4al</span></p>
<p><strong><span>What is radiation?</span></strong></p>
<p><span>Electromagnetic waves propagated through space.</span></p> <p><span>EAE2111 4am</span></p>
<p><strong><span>What is a black body?</span></strong></p>
<p><span>A body that emits the maximum radiation for its temperature i.e. it emits all that it absorbs</span></p> <p><span>EAE2111 4an</span></p>
<p><strong><span>What is shortwave radiation?</span></strong></p>
<p><span>Radiation emitted by the sun</span></p> <p><span>EAE2111 4ao</span></p>
<p><strong><span>What is Planks law?</span></strong></p>
<p><span>Total energy emitted and the spectral (wavelength) composition depends on temperature</span></p> <p><span>EAE2111 4ap</span></p>
<p><strong><span>What does Wien's Displacement law state?</span></strong></p> <p>2 points.</p>
<div>In general, states that:</div> <ul> <li>The higher the black body temperature, the higher proportion of shorter wavelengths in the emitted radiation</li> <li>The lower the black body temperature, the lower the proportion of shorter wavelengths in the emitted radiation</li></ul> <div></div> <p><span>EAE2111 4aq</span></p>
<p><strong><span>Which wavelengths of light is the atmosphere most transparent to?</span></strong></p>
<p><span>Visible light</span></p> <p><span>EAE2111 4ar</span></p>
<p><strong><span>For a given location and time what does shortwave radiation depend on?</span></strong></p>
<ul>Time of year<li>Time of day</li><li>‘Transparency’ of the atmosphere</li></ul> <p><span>EAE2111 4as</span></p>
<p><strong><span>What is the largest control of local atmospheric emissivity?</span></strong></p>
<p><span>Moisture</span></p> <p><span>EAE2111 4at</span></p>
<p><strong><span>When are radiative fluxes positive?</span></strong></p>
<p><span>When they represent a gain to the surface</span></p> <p><span>EAE2111 4au</span></p>
<p><strong><span>When are non-radiative fluxes positive?</span></strong></p>
<p><span>Positive when directed away from the surface (the usual daytime situation), and negative when directed toward the surface</span></p> <p><span>EAE2111 4av</span></p>
<p><strong><span>How is a Net surplus of energy transferred to the atmosphere?</span></strong></p> <p>2 points.</p>
<p><span>Via convective fluxes</span></p> <div>e.g</div> <ul> <li>Sensible heat flux (H)</li> <li>Latent heat flux (LE)</li></ul> <p><span>EAE2111 4aw</span></p>
<p><strong><span>What is sensible heat flux?</span></strong></p>
<p><span>(H):the heat we feel</span></p> <p><span>EAE2111 4ax</span></p>