**1. WHAT IS THE TEMPERATURE OF A PARCEL LIFTED DRY ADIABATICALLY**

*a) from 30°C @1000mb to 700mb? T_{p}=1°
*

b) from 15°C @1000mb to 600mb? T_{p}=-24.5°

c) from -10°C @900mb to 650mb? T_{p}=-34°

**2.WHAT IS THE TEMPERATURE OF A PARCEL LIFTED WET ADIABATICALLY**

*a) from 30°C @1000mb to 700mb? T_{p}=19°
*

b) from 15°C @1000mb to 600mb? T_{p}=-7°

c) from -10°C @900mb to 650mb? T_{p}=-29°

**3. WHAT IS THE TEMPERATURE OF A PARCEL STARTING FROM 32°C@1000
**

*a) lifted dry adiabatically to 850 mb and wet adiabatically
to 400mb? T_{p}=-13.5°*

b) lifted dry adiabatically to 650 mb and wet adiabatically to 300mb? T_{p}=-46°

Answers 1-3, graphically |

**4. IF , WHAT IS THE RELATIVE HUMIDITY
OF A PARCEL AT THE SURFACE ( ASSUME TO BE 1000MB UNLESS OTHERWISE
INDICATED)?**

*a) T= 24°C Td= 8°C w=7 w_{s}=19.5 RH=36%
*

b) T= 5°C Td=-2°C w=3.4 w_{s}=5.5 RH=62%

c) T=30°C Td=10°C p=850mb w=9.2 w_{s}=34 RH=27%

**5. WHAT IS THE POTENTIAL TEMPERATURE OF AIR **

*a)at 500 mb with a temperature of -11°C? =***320°
**

**The air at 500mb is potentially warmer than at 1000mb, that
is, has a higher potential temperature. d/dZ > 0 because
increases with height.**

Answers 4,5, graphically |

**6. WHAT IS THE 1000-500 MB THICKNESS OF A LAYER WHOSE AVERAGE
TEMPERATURE IS **

*a) 25°C ? Z=6.9km*

b) 0°C ? Z=6.0km

c) What is the relationship between thickness and temperature?

The hypsometric equation, or thickness relation states: the vertical distance between isobaric surfaces is directly proportional to the average temperature of the layer.

**7. FIND THE LCL IF THE SURFACE TEMPERATURE AND DEW POINT ARE**

*a) 25°C and 20°C, respectively. LCL=930mb*

b) 18°C and -1°C, respectively. LCL=750mb

c) 25°C and 20°C, respectively @ 900mb. LCL=850mb

**8. WHAT IS THE EQUIVALENT POTENTIAL TEMPERATURE OF 7a, 7b AND
7c FROM QUESTION #7 ABOVE?**

*a) _{e}=*

Answers 6-8 graphically |