1. What is Shear Wind?

Shear wind refers to the change in wind speed over a given distance in the atmosphere. It's an important factor in meteorology, aviation, and wind energy applications.

2. How Does the Calculator Work?

The calculator uses the shear wind equation:

Where:

• \( \Delta Speed \) — Change in wind speed (miles per hour)
• \( \Delta Height \) — Change in height (feet)

Explanation: The equation calculates the rate of change of wind speed with respect to height, expressed in mph per foot.

3. Importance of Shear Wind Calculation

Details: Wind shear is crucial for understanding atmospheric stability, predicting severe weather, assessing wind turbine performance, and ensuring aviation safety.

4. Using the Calculator

Tips: Enter the change in wind speed in mph and the change in height in feet. Both values must be positive numbers.

5. Frequently Asked Questions (FAQ)

Q1: What is considered strong wind shear?
A: In aviation, wind shear greater than 5 knots per 100 feet is considered significant and potentially hazardous.

Q2: How does wind shear affect aircraft?
A: Sudden changes in wind speed/direction can cause rapid changes in lift, leading to dangerous situations during takeoff and landing.

Q3: Why is wind shear important for wind turbines?
A: Wind shear affects power output and structural loads on turbine blades. Higher shear means more power potential but also greater stress.

Q4: What units are used for wind shear?
A: Common units include mph/ft, knots/ft, or (m/s)/m. This calculator uses mph/ft.

Q5: How is wind shear measured in practice?
A: Typically measured with anemometers at different heights, weather balloons, or Doppler radar systems.