Examine the figure below. What is the elevation of the cloud base? What will be the temperature of the air mass at the top of the mountain? If the air is saturated on the top of the mountain, what will the temperature be at sea level on the leeward side of the mountain? (point B)

Applications and Investigations in Earth Science (9th Edition)
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Author:Edward J. Tarbuck, Frederick K. Lutgens, Dennis G. Tasa
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Examine the figure below.

  1. What is the elevation of the cloud base?
  2. What will be the temperature of the air mass at the top of the mountain?
  3. If the air is saturated on the top of the mountain, what will the temperature be at sea level on the leeward side of the mountain? (point B)
**Orographic Lifting and Adiabatic Cooling**

This diagram illustrates the process of orographic lifting as air moves over a mountain.

- **Windward Side:**
  - As moist air approaches the mountain from the windward side, it rises and cools.
  - The air cools at the **dry adiabatic rate of 1°C per 100 meters** until it reaches the dew point temperature of 10°C.

- **At the Peak:**
  - Upon reaching the dew point, condensation occurs, forming clouds and possibly precipitation.
  - The altitude shown at the mountain peak is **3000 meters**.

- **Leeward Side:**
  - As the air descends down the leeward side, it warms at the **wet adiabatic rate of 0.5°C per 100 meters** due to the release of latent heat from condensation.
  - The temperature increase is less than on the windward side during ascent.

- **Temperature and Conditions:**
  - At **Point A** on the windward side, the temperature is **20°C**.
  - The key points include the different rates of adiabatic cooling (dry and wet) and the impact of elevation on temperature and moisture.

This process results in a rain shadow effect on the leeward side, where the air is drier compared to the windward side.
Transcribed Image Text:**Orographic Lifting and Adiabatic Cooling** This diagram illustrates the process of orographic lifting as air moves over a mountain. - **Windward Side:** - As moist air approaches the mountain from the windward side, it rises and cools. - The air cools at the **dry adiabatic rate of 1°C per 100 meters** until it reaches the dew point temperature of 10°C. - **At the Peak:** - Upon reaching the dew point, condensation occurs, forming clouds and possibly precipitation. - The altitude shown at the mountain peak is **3000 meters**. - **Leeward Side:** - As the air descends down the leeward side, it warms at the **wet adiabatic rate of 0.5°C per 100 meters** due to the release of latent heat from condensation. - The temperature increase is less than on the windward side during ascent. - **Temperature and Conditions:** - At **Point A** on the windward side, the temperature is **20°C**. - The key points include the different rates of adiabatic cooling (dry and wet) and the impact of elevation on temperature and moisture. This process results in a rain shadow effect on the leeward side, where the air is drier compared to the windward side.
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