Specializované

Kalkulačka plochy povodí

Watershed Area Calculator

Length (km)

Width (km)

Impervious %

What is Watershed Area Calculator?

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Plocha povodí určuje dostupnost vody a velikost odtoku. Větší povodí shromažďují více vody, ale vykazují delší dobu odezvy.

Calkulon makes complex calculations simple — built for students and everyday problem-solvers.

How to Watershed Area Calculator

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1Identify divides (ridges), trace water flow to outlet
2Calculate total area draining to point of interest
3Affects flood peak, minimum flows, and water availability

Worked Examples

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Example 1

Given:Watershed area 1000 km², annual precipitation 1000 mm

Výsledek:Total inflow ≈ 1000 × 10⁶ m³/year (~30 m³/s average)

Available water for use

Real-World Applications

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Water conservation planning for homes and businesses

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Agricultural irrigation scheduling and efficiency

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Urban water management and infrastructure planning

Frequently Asked Questions

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Why does watershed size matter for flood?

Larger watersheds have larger flood volumes but longer concentration times. Flash flooding more likely in small steep basins.

Can watershed boundaries change?

Rarely naturally, but dams and diversions alter water routing. Human impacts significant.

Common Mistakes to Avoid

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!Confusing watershed area with basin depth (elevation range)
!Neglecting urbanization effects (increases runoff despite same area)

References

›Watershed Area — Wikipedia

📖Difficulty:Advanced

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Formula-verified for precision

Reviewed October 2026

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