Unit 2 - Key Area 2 (Hydrosphere) Flashcards Preview

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Flashcards in Unit 2 - Key Area 2 (Hydrosphere) Deck (18)
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1

What is an aquifer?

An underground (subterranean) type of water storage where a layer of permeable rock, gravel or sand is soaked with water.

2

Describe condensation

When water vapour cools and (gas) changes into water droplets (liquid) in clouds.

3

What is the Coriolis Effect?

It is caused by the rotation of the Earth, it results in currents being deflected to the right in the northern hemisphere and to the left in the southern hemisphere.

4

Describe evaporation

When liquid water on the surface changes to water vapour (gas) in the atmosphere.

5

What is the Global ocean conveyer belt

It is a constantly moving system of deep ocean circulation drive by thermohaline circulation and surface wind currents,

6

What is water stored in in the soil and rock? The amount of water stored will vary depending on the porosity of the soil and on the permeability of the rock.

Groundwater

7

What is the Gulf Stream?

A current which transports warm water away from the equator.

8

Desribe infiltration

The movement of water downwards into the soil.

9

What is the name for a continuously circulating pattern of ocean currents that is influenced by the surface winds and the Coriolis effect.

Ocean gyres

10

When water moves downwards through soil? (think about coffee)

Percolation

11

The downward movement of water from clouds to the ground as rain, hail, snow, sleet etc.

Precipitation

12

What does subterranean mean?

Underground

13

What two factors are involved in thermohaline currents?

Temperature and salt

High Salt - makes water dense and sink
Low temperatures - makes water dense and sink

14

Describe runoff of water

When water flows over the surface of the ground

15

What is sublimination?

When water changes from solid ice straight to water vapour (gas).

16

Where does water move in transpiration?

When water moves upwards through plants from roots to leaves.

17

What is the name for deep water returning to the surface? (usually full of nutrients)

Upwelling

18

Man-made (anthropogenic) issues involving ocean gyres

Pollution (plastics and waste) are circulated into large densities. E.g. Pacific Garbage Patch