|Worksheet #20, ATOC 3600, November 7, 2000
1. Given the magnitude of exchanges given in class, what is the residence time of water vapor in the atmosphere. (That is, if no sources of water vapor enter the atmosphere, how long will it take for the sinks of water to deplete the atmosphere?)
2. Calculate the moist static energy of air with temperature of 300oK
and specific humidity of 15 g kg-1.
3. Calculate and compare the residence time of atmospheric carbon, free
oxygen, and water vapor. The total atmospheric reservoirs of carbon, free
oxygen, and water vapor are 750 Gt-C, 1.1 106 Gt-O, and 1.7
105 Gt-H2O, respectively. The rate at which they
enter the atmosphere are 50 Gt-C/yr, 200 Gt-O/yr, and 500,000 Gt-H2O/yr.
4. Draw a temperature/pressure diagram of an atmospheric "parcel" moving
through the atmosphere during convection. Also show the environment profile.
On this diagram, identify the lifting condensation level (LCL), level of
free convection (LFC) of the parcel and the area showing CAPE.
5. If the hydrologic cycle were to become more intense, would it have
an impact on the carbon and oxygen cycles. Examine the cycles and identify
three process in the carbon and oxygen cycles that you might expect would
be impacted by a change in the hydrological cycle.