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Area of Catchment, also known as a watershed or simply a catchment, refers to the region of land from which water flows into a river, lake, or reservoir. It is a fundamental concept in hydrology and water resource management.
The calculator uses the formula:
Where:
Explanation: This formula calculates the area of catchment based on the annual sediment yield rate, using empirical constants derived from hydrological studies.
Details: Accurate calculation of catchment area is crucial for water resource management, flood prediction, sediment transport studies, and environmental planning. It helps in understanding the watershed characteristics and managing water-related projects effectively.
Tips: Enter the Annual Sediment Yield Rate value. The value must be valid (greater than 0). The calculator will compute the corresponding Area of Catchment in square kilometers.
Q1: What is Annual Sediment Yield Rate?
A: Annual Sediment Yield Rate is the total quantity of sediment that is transported from a drainage basin over a given time period, typically measured annually.
Q2: Why is 0.28 used as the exponent in the formula?
A: The exponent 0.28 is an empirical constant derived from hydrological studies that represents the relationship between sediment yield and catchment area.
Q3: What units are used for the result?
A: The result is given in Square Kilometers, which is the standard unit for measuring catchment areas.
Q4: Can this formula be used for all types of catchments?
A: While the formula provides a general estimation, it may need adjustments for specific geological and hydrological conditions of different catchments.
Q5: How accurate is this calculation?
A: The accuracy depends on the precision of the input value and the applicability of the empirical constants to the specific catchment being studied.