METEOROLOGY – CLOUD & VIIBILITY CALCULATOR
Visibility Reduction
A precise tool.
What is the Visibility Reduction & How does it work?
Visibility reduction due to precipitation is influenced by the type and rate of the precipitation. Rain, snow, sleet, and hail can all reduce visibility, with heavier rates generally leading to greater reductions.
The relationship between visibility reduction (V) and precipitation rate (P) can be approximated by the formula:
V = k cdot P
k = visibility reduction coefficient specific to the precipitation type
The coefficient k varies depending on whether it is rain, snow, sleet, or hail. For example, heavy rain might have a higher k than light snow.
Parameters
Result
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Frequently Asked Questions
How does rain affect visibility compared to snow?
Rain typically reduces visibility more than snow because it falls in liquid form and scatters light more easily.
What is the formula for calculating visibility reduction due to precipitation?
The formula is V = k * P, where V is visibility reduction, P is precipitation rate, and k is a coefficient specific to the type of precipitation.
How does the rate of precipitation affect visibility?
Heavier rates of precipitation generally lead to greater reductions in visibility.
What types of precipitation are included in this calculation?
This calculation includes rain, snow, sleet, and hail.
How do I determine the coefficient k for different types of precipitation?
The coefficient k varies depending on the type of precipitation: rain, snow, sleet, or hail. Specific values are typically provided in meteorological data or guidelines.
Can this formula be used for any weather condition?
This formula is specifically designed for calculating visibility reduction due to precipitation and may not be applicable to other weather conditions.
What units should I use for precipitation rate when using this formula?
The unit for precipitation rate (P) should be consistent with the units used for the coefficient k, typically in millimeters per hour or inches per hour.
Results are for informational purposes only and do not constitute professional advice.