Consider an air parcel that is lifted from the surface to 3 kilometers. The surface temperature is 25 o C and condensation occurs when the parcel...
View the step-by-step solution to:

Question

Consider an air parcel that is lifted from the surface to 3 kilometers. The surface temperature is 25oC

and condensation occurs when the parcel reaches a height of 1.4 km above the surface. MALR is 5oC/km. Complete the table below with the parcel temperatures as it ascends from the surface to 3 km. The environmental temperatures may be calculated using an environmental lapse rate of 12oC/km, beginning with the same surface temperature. 

 

 

Temperatures for Air Parcel and Environment

 

Height             Parcel temp                                   Environment temp

(km)                                   (oC)                                                            (oC)

 

3.0                                                              

2.8                                                              

2.6                                                              

2.4                                                              

2.2                                                              

2.0                                                            

1.8                                                             

1.6                                                             

1.4                                                            

1.2                                                             

1.0                                                             

0.8                                                            

0.6                                                            

0.4                                                            

0.2                                                            

0.0 (surface)                   

 

 

b.                 Plot the parcel and environmental temperatures from the above table vs height. Height will be the vertical axis, temperature the horizontal axis. Indicate the height at which condensation occurs.

 

c.                  Indicate on the graph the layers of the atmosphere that are stable, unstable or neutral. Recall that stability is assessed by comparing the temperatures of the rising air and surrounding air at the same height. If the rising air is colder than the surrounding air it will be heavier, have a tendency to sink and therefore the atmosphere will be stable. If the rising air is warmer than the surrounding air, it will be lighter and the atmosphere will be unstable. If the temperatures are the same the atmosphere is neutral.

Top Answer

View the full answer
Graph,..jpg

Height Vs. Temperature
The height at which
condensation occurs
Unstable atmosphere
2.1
Height (km)
19
1.5
Parcel Temperature
14
1.3
Unstable atmosphere
-Environmental Temperature
12
1.1
1
Neutral...

Sign up to view the full answer

Why Join Course Hero?

Course Hero has all the homework and study help you need to succeed! We’ve got course-specific notes, study guides, and practice tests along with expert tutors.

-

Educational Resources
  • -

    Study Documents

    Find the best study resources around, tagged to your specific courses. Share your own to gain free Course Hero access.

    Browse Documents
  • -

    Question & Answers

    Get one-on-one homework help from our expert tutors—available online 24/7. Ask your own questions or browse existing Q&A threads. Satisfaction guaranteed!

    Ask a Question