RIVERS Form 2-20- TERM 2

Hydrological (Water) Cycle

Processes in the Hydrological Cycle

Processes in the Hydrological Cycle- Drainage Basin System

Processes in the Hydrological Cycle

Hydrological Cycle & its Features

Groundwater

Unconfined groundwater

Confined groundwater

The Water Table

Water Zones

Aquifers

How the connections between the pores or fractures control how water moves through an aquifer

Artesian Basins

Artesian Wells

Springs

1. A permeable rock lying on top of an impermeable rock in a hill

Spring Formation

2. Where the water table comes to the surface along the side of a valley.

Spring Formation

3. Where there are faults in the rocks, with the result that a permeable rock is brought up against an impermeable one.

Spring Formation

4. Artesian Spring

Spring Formation

5. Numerous springs occur where the junction of limestone rocks and underlying impermeable rocks meet the surface

Spring Formation

Drainage Basin

Drainage Basin

Drainage Density

Drainage Patterns

Dendritic Pattern- Guyana

Trellis Pattern- Trinidad

Radial Pattern- Nevis

River Processes

Vertical Erosion

Lateral Erosion

Headward Erosion

River Transportation

River Valley

Long Profile vs. Cross Profile

Cross Profile

Long Profile vs Cross Profile

River Landforms

UPPER COURSE

Interlocking Spurs

Potholes

V-Shaped Valleys

Waterfalls & Rapids

River Landforms

MIDDLE COURSE

Meanders

River Cliffs & Slip-Off Slopes

Point Bar/Slip-off Slope

River Cliff

River Landforms

LOWER COURSE

Flood Plain & Levées

Braiding

Ox-Bow Lakes

Deltas

Arcuate Delta

Bird’s Foot Delta

Estuarine Delta

River Rejuvenation

THE END