Catchments - Storage

8 important questions on Catchments - Storage

What is groundwater storage?

After a rainfall event the groundwater table rises, saturating part of the unsaturated zone.

What is the fomula for storage in groundwater?

Mu= delta Sw/delta h

met:
mu=storage coefficient
Sw=specific storage in mm
h=groundwater level in mm

Why can clayey soils store less water?

Unsaturated clayey soils normally contain more water in their pores than sandy soils.
  • Higher grades + faster learning
  • Never study anything twice
  • 100% sure, 100% understanding
Discover Study Smart

What is the formula for the storage coefficient?

μ = ΔSw : Δh
 - Δ Sw = rainfall
- Δ h = groundwater change
-  μ = storativity, precentage of air in the soil

What is the field capacity?

The wetness of the upper soil layer when the soil has lost iets suplus of water to the groundwater after a wet period.

What is field capacity?

the amount of soil moisture or water content held in soil after excess water has drained away and the rate of downward movement has materially decreased, which usually takes place within 2–3 days after a rain or irrigation in pervious soils of uniform structure and texture.

Name 4 examples of surface water systems. What is the result of water storage in these systems?

-floodplains
-lakes
-retention basins
-reservoirs  

Water storage in these systems results in a more gradual discharge towards the catchment outlet (the discharge peak is lower and reaches the outlet later than when less storage is possible)

How can the snow water equivalent (SWE) be calculated?

To determine density of a certain snow pack, some snow is melted. Melting 12 cm of snow results in 42 mm of water. The density is mu=deltaSw/deltah=42/120=0.35=35%

The question on the page originate from the summary of the following study material:

  • A unique study and practice tool
  • Never study anything twice again
  • Get the grades you hope for
  • 100% sure, 100% understanding
Remember faster, study better. Scientifically proven.
Trustpilot Logo