Summary: Principles Of Earth Etc
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Read the summary and the most important questions on principles of earth etc
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1 Earths climate
This is a preview. There are 8 more flashcards available for chapter 1
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What is the response time of ocean surface?
Days to months
Afternoon heating of upper few feet
Warmest beach temperatures late in summer -
What is the response time of Vegetation?
Hours to decades/centuries
sudden leaf kill by frost
slow growth of trees to maturity -
What is the response time of the deep ocean?
100-1500 years
time to replace worlds deep water -
What does the temporal variability express the response of the earth to?
Changes in forcing that occur at these timescales
AND
interactions between all main Earth system components responding at different timescales to a relative constant forcing (INCLUDING FEEDBACK LOOPS) -
1.1 the physics laws
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What is the Stefan-Boltzman law
The Stefan-Boltzmann law describes how the total energy radiated by a black body is related to its temperature• It states that the total energy emitted per unit surface area of a black body is directly proportional to the fourth power of its absolute temperature• The law is expressed mathematically as E = σT^4, where E is the energy radiated, σ is the Stefan-Boltzmann constant, and T is the temperature. -
What is Plancks law in physics?
Placnk's law of radiation predicts the spectral intensity of electromagnetic radiation at all wavelengths from a black body at temperature T -
What is the temperature of the sun in Kelvin?
6000 kelvin -
What is the temperature of Earth in Kelvin?
288 kelvin -
What is the difference between earth's and solar radiation?
Solar radiation has high energy and is shortwave that easily penetrates the atmosphere
Earth radiation is low-energy and is longwave that is easily absorbed by the atmosphere -
What is the temperature of earth when measure from sattelite ie without greenhouse effect
255K
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