EE24

Question 1

Who predicted global warming via calculations of co2 conc?

Answer 1

arhenius

Question 2

What type of cycle is the co2 cycle?

Answer 2

postive feed back
increasing co2 increases climate
increases plant function
increases co2

Question 3

What affect does deforestation have on global temperatures?

Answer 3

Vegetation covered areas have a low albedo
(fraction of solar energy reflected back into space)
provides ample energy for photosynthesis and transpiration
high latent heat loss cools surface
bare soil has a high albedo
reduce amount of energy absorbed at the surface.
latent heat loss severely reduced and surface warms
no means of removing excess energy through transpiration

Question 4

How does amount and type of vegetation affect how ground surface interact with solar radiation?

Answer 4

High albedo = lighter coloured, smooth texture= greater trasnfer of energy by wind.
- evapotransportation increases with leaves per unit. effects air temperature and moisture as transfer latent heat.

Question 5

What are the predictions fro change in amazon climate and hydrology?

Answer 5

• screen temperature increases
• precipitation decreases
• available soil decrease moisture
• total evaporation decreases
• gross primary productivity decreases.

Question 6

What is eddy Covariance?

Answer 6

measures all CO2 going in and out of canopy

also works for other gasses for which there are fast response sensors.