Lecture 6 - Groundwater Hydrology Flashcards

1
Q

What Does Hydrodynamic Equilibrium Depend on?

A

Discharge = Recharge

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2
Q

What Does Hydrodynamic Disequilibrium Depend on:

A

Discharge > Recharge

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3
Q

What is Groundwater Hydrology?

A

The movment and distribution of goundwater in soils and rocks of the Earth’s crust

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4
Q

What Does the Hydraulic Gradient Depend on?

A

Change in height / Change in length

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5
Q

Groundwater flows perpendicular to what?

A

Equipotential lines

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6
Q

What is Porosity?

A

Ability to hold water (in void spaces)

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7
Q

What is the Porosity Equation (P)

A

Volume in the pore / the total ground water volume

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8
Q

What is Permeability?

A

Ability to transmit water

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9
Q

What is Dispersivity?

A

The ability to mix groundwater

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10
Q

What is Hydraulic Conductivity (k):

A

Time to flush a sediment-filled column

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11
Q

What is the hydraulic condcuctivity Equation (k)?

A

k = GL / Aht

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12
Q

Discharge Equation (Q):

A

Q = ((permeability (k)) x Area x (Hydraulic Gradient (i))) / (Effective porosity (η))

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13
Q

What is the Velocity Equation:

A

((Permeability (k)) x (hydraulic gradient (i))) / (effective porosity (
η))

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14
Q

Types of Contamination (5):

A
  1. Agricultural
  2. Commercial
  3. Inductrial
  4. Municipal
  5. Specialized
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15
Q

What are LNAPL?

A

Light Non-Aqueous Phase Liquid (less dense than water)

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16
Q

What are DNAPL?

A

Dense Non-Aqueous Phase Liquid (denser than water)