Rivers Definitions

Question 1

Abrasion

Answer 1

Rocks carried along by the river wear down the river bed and banks

Question 2

Absrtraction

Answer 2

Process of removing something especially water from a river or other source

Question 3

Afforestation

Answer 3

Planting trees and vegetation soft engineering

Question 4

Antecedent moisture conditions

Answer 4

Moisture that comes before an event

Question 5

Aquifer

Answer 5

Ground water storage normally old water paleo

Question 6

Bank full channel width

Answer 6

Width of channel from bank to bank when full

Question 7

Bank full discharge

Answer 7

The amount of water that passes the width of the bank/ channel when full

Question 8

Base flow

Answer 8

Portion of stem flow that comes from the sum of deep subsurface flow and delayed shallow subsurface flow

Question 9

Basin lag time

Answer 9

Difference between be peak of the rain event and the peak discharge

Question 10

Capacity

Answer 10

What a river actually carries

Question 11

Cavitation

Answer 11

Formation of bubbles In a liquid

Question 12

Channel flow

Answer 12

Water flowing in a stream or a regulated pathway/ direct pathway it is organised

Question 13

Competence

Answer 13

Maximum size of material that a river is able to transport

Question 14

Confluence

Answer 14

When one or more smaller river joins a main one

Question 15

Cumec

Answer 15

Cubic meter per seccond as a unit of flow of water

Question 16

Distributory

Answer 16

Small rivers coming off of a main/ large river

Question 17

Eddy/eddies

Answer 17

Circular movement of water causing a small whirlpool

Question 18

Flocculation

Answer 18

Where a solute comes out of a solution

Question 19

Geomorphology

Answer 19

Study of the physical feature of the surface of the earth

Question 20

Helicoidal flow

Answer 20

Corkscrew

Question 21

Infiltration

Answer 21

Water sinks through gaps in the top surface ground layer. Sink more downhill under the force of gravity

Question 22

Interception

Answer 22

Precipitation falls directly onto a surface and does not reach the ground level

Question 23

Laminar flow

Answer 23

Straight impossible

Question 24

Lateral erosion

Answer 24

Makes a river channel deeper and wider

Question 25

Mitigation

Answer 25

Lateral migration of alluvial river channel across a floodplain driven by back erosion and point bar erosion

Question 26

Overland flow

Answer 26

Movement of water over the land downslope toward a surface water body

Question 27

Peak flow

Answer 27

Peak rainfall is at its highest and it is at us peak discharge

Question 28

Percolation

Answer 28

Water soaks deep into the ground past the water table and going into the ground water