Altitude

Altitude refers to the height of an object or point in relation to sea level or the earth's surface. In the context of geography, it is often used to describe the height of a location above sea level. In the context of aviation, altitude refers to the distance of an aircraft above sea level.

Types of Altitude:

1. Indicated Altitude: The altitude read directly from the altimeter when it is set to the current sea level pressure.
2. True Altitude: The vertical distance of a level, a point, or an object measured from mean sea level.
3. Absolute Altitude: The vertical distance of an aircraft or spacecraft above the terrain.
4. Pressure Altitude: The altitude indicated when an aircraft's altimeter is set to an agreed-upon reference pressure.

Effects of Altitude:

As altitude increases, the air pressure and density decrease, which can have various effects on living organisms, weather patterns, and the performance of aircraft and other machinery.

Study Guide:

• What is altitude and how is it measured?
• Discuss the different types of altitude and their significance in different contexts.
• Explain the effects of altitude on living organisms and machinery.
• Provide examples of how altitude impacts weather patterns and climate.