exam 2Lec notes - reservoir divided by the rate of water...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Exam 2 Lecture Notes: Lecs. 7-11 Lec. 8 Three types of fog: radiation fog advection fog orographic fog Requirements for sustained evaporation: vapor-pressure gradient source of energy mechanism to carry vapor away and maintain the vapor-pressure gradient dew point: The dew point temperature is the temperature at which air with a given amount of water vapor becomes saturated. It is the temperature at which the relative humidity becomes 100%. Relative humidity is an expression of the amount of water vapor in air of known temperature as a percentage of the saturation vapor pressure at that temperature. Lec9 Mean residence time :If we assume that the reservoirs are in equilibrium, the mean residence time of water in a reservoir, such as the atmosphere, is equal to the size of the
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: reservoir divided by the rate of water going into, or out of, the reservoir. Lec 11 Deep water formation: Water that increases in density by getting colder and more saline may begin to sink. This sinking is aided by: • radiational cooling • evaporation (removes heat and increases salinity) • ice formation interruptions of the thermohaline circulation: What would happen if deep-water formation stopped in the North Atlantic? • Sudden cooling of western and northwestern Europe • Much lower precipitation around northern North Atlantic basin • Increased glacierization around northern North Atlantic basin...
View Full Document

This document was uploaded on 10/27/2011 for the course GEOSCI 100 at UMass (Amherst).

Ask a homework question - tutors are online