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Engineering Hydrology
Watershed Area in Estimation of Recharge Formulas
The Watershed Area refers to the isolated area with a well demarcated boundary line, draining the rainwater to a single outlet. And is denoted by A. Watershed Area is usually measured using the Square Meter for Area. Note that the value of Watershed Area is always positive.
Formulas to find Watershed Area in Estimation of Recharge
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Equation for Watershed Area about Specific Yield and Water Level Fluctuation
Go
f
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Catchment Area usually Watershed Area when Possible Recharge is Considered
Go
Estimation of Recharge formulas that make use of Watershed Area
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Equation for Specific Yield
Go
f
x
Equation for Gross Recharge due to Rainfall and other Sources
Go
f
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Equation for Gross Water Draft
Go
f
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Equation for Base Flow into Stream from Area
Go
f
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Equation for Recharge from Stream into Ground Water Body
Go
f
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Equation for Net Ground Water Flow into Area across Boundary
Go
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Equation for Water Level Fluctuation
Go
f
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Equation for Recharge when Gross Water Draft is Considered
Go
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Water Level Fluctuation when Possible Recharge and Gross Water Draft is Considered
Go
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Specific Yield when Possible Recharge and Gross Water Draft is Considered
Go
f
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Possible Recharge in Sandy Alluvial Areas for Maximum Value of Specific Yield
Go
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Possible Recharge in Silty Alluvial Areas for Maximum Value of Specific Yield
Go
f
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Possible Recharge in Clayey Alluvial Areas for Maximum Value of Specific Yield
Go
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Possible Recharge in Hard Rock Areas with Low Clay Content for Maximum Value of Specific Yield
Go
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Possible Recharge in Hard Rock Areas with Significant Clay Content for Maximum Specific Yield
Go
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x
Possible Recharge in Hard Rock Areas with Weathered Jointed Basalt for Maximum Specific Yield
Go
f
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Possible Recharge in Hard Rock Areas with Laterite for Maximum Specific Yield
Go
f
x
Possible Recharge in Hard Rock Areas with Sandstone for Maximum Specific Yield
Go
f
x
Possible Recharge in Hard Rock Areas with Quartzite for Maximum Specific Yield
Go
f
x
Possible Recharge in Hard Rock Areas with Limestone for Maximum Specific Yield
Go
f
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Possible Recharge in Hard Rock Areas with Karstified Limestone for Maximum Specific Yield
Go
f
x
Possible Recharge in Hard Rock Areas with Phyllites, Shales for Maximum Specific Yield
Go
f
x
Possible Recharge in Hard Rock Areas with Massive, Poorly Fractured Rock for Maximum Specific Yield
Go
f
x
Possible Recharge in Sandy Alluvial Area given Minimum value of Specific Yield for Area
Go
f
x
Possible Recharge in Silty Alluvial Area given Minimum value of Specific Yield for Area
Go
f
x
Possible Recharge in Clayey Alluvial Area given Minimum value of Specific Yield for Area
Go
f
x
Possible Recharge in Hard Rock Area with Low Clay Content given Minimum value of Specific Yield
Go
f
x
Possible Recharge in Hard Rock Area with significant Clay Content
Go
f
x
Possible Recharge in Hard Rock Area with Weathered or Vesicular, Jointed Basalt
Go
f
x
Possible recharge in hard rock area with laterite for minimum specific yield of area
Go
f
x
Possible recharge in hard rock area with sandstone for minimum specific yield
Go
f
x
Possible recharge in hard rock area with quartzite given minimum specific yield
Go
f
x
Possible recharge in hard rock area with limestone given minimum specific yield of area
Go
f
x
Possible Recharge in Hard Rock Area with Kartstified Limestone given Minimum Specific Yield
Go
f
x
Possible Recharge in Hard Rock Area with Phyllites, Shales given Minimum Specific Yield
Go
f
x
Possible Recharge in Hard Rock Area with Massive, poorly fractured Rock
Go
f
x
Possible Recharge in Sandy Alluvium Areas based on Known norms of Recommended Specific Yield
Go
f
x
Possible Recharge in Silty Alluvium Areas based on Known norms of Recommended Specific Yield
Go
f
x
Possible Recharge in Clayey Alluvium Areas based on Known Norms of Specific Yield
Go
f
x
Possible Recharge in Weathered Hard Rock Areas with Low Clay content based on Recommended Norms
Go
f
x
Possible Recharge in Weathered Hard Rock Areas with Significant Clay content based on Norms
Go
f
x
Possible Recharge in Hard Rock Areas with Weathered or vesicular, Jointed Basalt
Go
f
x
Possible Recharge in Hard Rock Areas with Laterite
Go
f
x
Possible Recharge in Hard Rock Areas with Sandstone
Go
f
x
Possible Recharge in Hard Rock Areas with Quartzite
Go
f
x
Possible Recharge in Hard Rock Areas with Limestone
Go
f
x
Possible Recharge in Hard Rock Areas with karstified Limestone
Go
f
x
Possible Recharge in Hard Rock Areas with Phyllites, Shales given recommended specific Yield
Go
f
x
Possible Recharge in Hard Rock Areas of massive Poorly fractured Rocks
Go
List of variables in Estimation of Recharge formulas
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x
Gross Recharge due to Rainfall
Go
f
x
Gross Water Draft
Go
f
x
Base Flow into the Stream from the Area
Go
f
x
Recharge of Ground Water Body
Go
f
x
Net Ground Water Flowing Outside Catchment
Go
f
x
Specific Yield
Go
f
x
Water Level Fluctuation
Go
f
x
Possible Recharge
Go
FAQ
What is the Watershed Area?
The Watershed Area refers to the isolated area with a well demarcated boundary line, draining the rainwater to a single outlet. Watershed Area is usually measured using the Square Meter for Area. Note that the value of Watershed Area is always positive.
Can the Watershed Area be negative?
No, the Watershed Area, measured in Area cannot be negative.
What unit is used to measure Watershed Area?
Watershed Area is usually measured using the Square Meter[m²] for Area. Square Kilometer[m²], Square Centimeter[m²], Square Millimeter[m²] are the few other units in which Watershed Area can be measured.
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