Rivers

?
What is a Drainage Basin? What type of system is it?
A Drainage Basin is the catchment area from which a river system obtains its water. The drainage basin is an open system with inputs and outputs of energy and matter.
1 of 22
What is a Watershed?
A watershed is the imaginary line separating one drainage basin from another.
2 of 22
What is precipitation?
All forms of moisture that reach the earth's surface.
3 of 22
What is evaporation?
Evaporation is the transformation of water droplets into water vapour by heating.
4 of 22
What is (Evapo)Transpiration?
The loss of water into the atmosphere from the leaves of plants.
5 of 22
What is surface storage?
The total volume of water held on the earth's surface (lakes, ponds, puddles)
6 of 22
What is groundwater storage?
The storage of water underground in permeable rock.
7 of 22
What is infiltration?
The downward movement of water into the soil surface.
8 of 22
What is throughflow?
The movement of water down slope within the soil layer.
9 of 22
What is interception?
The prevention of rain from reaching the earth's surface by trees and plants.
10 of 22
What is stemflow?
The water that runs down the stems and branches of plants after rain to reach the ground.
11 of 22
What is throughfall?
The water that drips off leaves during a rainstorm.
12 of 22
What is percolation?
The transfer of water from the soil to the bedrock beneath.
13 of 22
What is interception?
The process by which raindrops are prevented from directly reaching the earth's surface.
14 of 22
What is an input?
The movement of water into the drainage basin.
15 of 22
What is an output?
The movement of water out of the drainage basin.
16 of 22
What is a store?
A store holds water within the drainage basin.
17 of 22
What is the equation for The Water Balance?
P=Q+E+ - change in storage (P =precipitation , Q=Run-off, E= Evapotranspiration_
18 of 22
Describe a 'Flashy' hydrograph
Short lag time, High peak discharge and a Steep rising limb.
19 of 22
Describe a 'Flat' hydrograph
Long lag time, Low peak discharge and a gently sloping rising limb
20 of 22
What are the 3 main categories of transportation?
Bedload, Suspended load and Solution/Dissolved load
21 of 22
What are the 4 processes of transportation, and what do they each do?
Traction - Rolls boulders along the river bed. Saltation - Pebbles are bounced along the bed. Suspension - Material is carried along by the river. Solution - Dissolved minerals in the water.
22 of 22

Other cards in this set

Card 2

Front

A watershed is the imaginary line separating one drainage basin from another.

Back

What is a Watershed?

Card 3

Front

All forms of moisture that reach the earth's surface.

Back

Preview of the back of card 3

Card 4

Front

Evaporation is the transformation of water droplets into water vapour by heating.

Back

Preview of the back of card 4

Card 5

Front

The loss of water into the atmosphere from the leaves of plants.

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Geography resources:

Rivers
See all Geography resources »See all Rivers and fluvial processes resources »