Presentation is loading. Please wait.

Presentation is loading. Please wait.

What physical factors determine the supply of water? G4 Water Key Idea 2.1.

Similar presentations


Presentation on theme: "What physical factors determine the supply of water? G4 Water Key Idea 2.1."— Presentation transcript:

1 What physical factors determine the supply of water? G4 Water Key Idea 2.1

2 Rivers only 2% of surface freshwater

3 The parts of the water cycle

4 Global values of the water cycle

5 Climate determines where rain falls – Highs and Lows

6 Freshwater availability varies at different scales

7 Continent population and fresh water

8 Upland Wales – temperature and rainfall

9 Craig Goch Wales - a good reservoir site – why?

10 London SE England – Temperature and Rainfall

11 England and Wales – matching supply and demand.

12 Water Transfer – proposal (controversial)

13 Water Balance

14 Botswana – Rainfall Total, seasonality, variability

15 India – climate, river discharge, aquifers

16 Relief – river basins

17 Global warming will melt most Andean glaciers in the next 30 years, scientists say, threatening the livelihood of millions of people who depend on them for drinking water, farming and power generation. Climate Change – ultimately reduced river flows in some areas

18 Aquifers and groundwater in the UK

19 Thames Basin - artesian

20

21 See pie chart c).

22 Water supply is not always top quality. Human impact.

23 Human impact on supply. Lake Chad.

24 Water scarcity – physical and economic.


Download ppt "What physical factors determine the supply of water? G4 Water Key Idea 2.1."

Similar presentations


Ads by Google