Question

I need to graph point C (from question 2) and to answer 2a, is it stable or unstable. thank you

LORESTACI EXERCISE 17 PROBLEMS-PART II (English Units) On the following chart, use the sets of hypothetical data to plot the vertical tempera- ture profile (the environmental lapse rate) of the atmosphere in two locations. Using a straightedge, connect the temperature points for Location A with blue line, and for Loca- tion B with a green line (if you do not use colored lines, label each line clearly). After completing the temperature profiles, answer the questions on the following page. Elevation (feet) 10,000 7000 Temperature (°F) Location A Location B 30°F 33°F 34°F 47°F 41°F 59°F 51°F 67°F 46°F 72°F 55°F 80°F 5000 3000 2000 n0 Elevation 10,000 9000 8000 7000 6000 5000 4000 3000 2000 1000 25°F 30°F 35°F 40°F 45°F 50°F 55°F Temperature 60°F 65°F 70°F 75°F 80°F 103

Answer 1

Remember, the vertical temperature profiles show the temerature of the surrounding air through which parcels of air can move. For the following questions, assume that the DAR is 5.5 F M feet and that the SAR is 3.0°F/1000 feet. Physical Geography Laboratory Manual 2.a) the temperature of air parcel at LCL at elevation of 2000 feet is equal to (55 - DAR * 2000) OF = [ 55 - (5.5/1000) * 2000 ] A parcel of air with an initial temperature of 55°F begins to rise in Location A. The LCL = 44 OF of the parcel is 2000 feet. With a red (or labeled) line, carefully draw the temperature decrease of this parcel of air as it rises to 8000 feet. Be sure to consider the LCL, and the and the temperature of air parcel at elevation of 8000 feet DAR and SAR is equal to [ 44 - SAR * (8000-2000)] (a) Describe the stability pattern of this parcel of air. = [ 44 - (3/1000) *6000 ] = [ 44 -18 ] = 26 OF (b) What is the general name for the change observed in the vertical temperature profile between 2000 and 3000 feet? now comapring the environmental temperature with the air parcel temperature, we ound that the environmental air temprature is always highter than the air parcel (c) Does the parcel of rising air become highly stable or highly unstable between temperature (except at 0 elevation, that is initial point 2000 and 3000 feet? Why? bothe temperature same which is 55 OF). therefore air parcel in the location A always stable A parcel of air with an initial temperature of 80°F begins to rise in Location B. The LCI of the parcel is 4000 feet. With a red (or labeled) line, carefully draw the temperatur 2.c) At elevation of 3000 feet the air parcel temperature is decrease of this parcel of air as it rises to 10,000 feet. Be sure to consider the LCL, an equal to 44 - SAR * (3000 - 2000) = 44 - 3 = 41 OF where as the DAR and SAR at this elevation, the environmental air temperature is 51 (a) Will this parcel of air begin to rise from the surface on its own? Why? OF which is higher than air parcel temperature. and for elevation 2000, the corresponding temperatures are 26 OF and 46 OF respectively. therefore air parcel (b) Does the stability of this parcel change with increased elevation? If so, at what temperature is lower than the environmntal temperature in elevation does this change occur? between the 2000 feet to 3000 feet. Hence the parcel of rising air become highly stable in this range 3. (c) How would the pattern of stability below 10,000 feet be different if the lifting condensation level was not reached until 9000 feet?