HYDROLOGY AND RIVER LANDFORMS INTRODUCTION: WHERE IS ALL THE WATER?

HYDROLOGY: WHAT IS IT? the study of the movement, distribution, and quality of water throughout the Earth. addresses both the hydrologic cycle and water resources .

the study of the movement, distribution, and quality of water throughout the Earth.

addresses both the hydrologic cycle and water resources .

WHERE IS ALL THE WATER? Total volume of all earths water is… 1 360 000 000 cubic kilometers (est.) Total water volume in oceans and seas (saline water) 1 320 000 000 cubic kilometers (est.)

Total volume of all earths water is…

1 360 000 000 cubic kilometers (est.)

Total water volume in oceans and seas (saline water)

1 320 000 000 cubic kilometers (est.)

WHERE IS ALL THE WATER? This leaves 40 000 000 cubic kilometers as fresh water : Ice Lakes Rivers Underground (Rock and Soil) Atmosphere In or on vegetation

This leaves 40 000 000 cubic kilometers as fresh water :

Ice

Lakes

Rivers

Underground (Rock and Soil)

Atmosphere

In or on vegetation

HOW MUCH WATER IS THERE IN MORE UNDERSTANDABLE TERMS? What is a cubic meter?

What is a cubic meter?

How much water is there in a cubic meter? 1000 liters of water

1000 liters of water

How much water is there in an Olympic size swimming pool?

How much water is there in an Olympic size swimming pool?

How much water is there in an Olympic size swimming pool? Length x width x depth 50 meters x 25 meters x 2 meters = 2500 cubic meters = 2 500 000 liters of water

Length x width x depth

50 meters x 25 meters x 2 meters

= 2500 cubic meters

= 2 500 000 liters of water

How many cubic meters are there in a cubic kilometer? 1 cubic km = 1000 x 1000 x 1000 meters 1 cubic km = 1 000 000 000 (1 billion cubic meters)

1 cubic km = 1000 x 1000 x 1000 meters

1 cubic km = 1 000 000 000 (1 billion cubic meters)

How much water is there in 1 cubic kilometer (one billion cubic meters)? 1 billion cubic meters x 1000 liters = 1 000 000 000 000 ( 1 trillion liters) or 400 000 Olympic size pools

1 billion cubic meters x 1000 liters

= 1 000 000 000 000 ( 1 trillion liters)

or 400 000 Olympic size pools

How many liters in all the water of the earth? Pheeeewww!!! 1 360 000 000 cubic kilometers x 1 trillion liters 1 360 000 000 000 000 000 000 liters or 1.36 sextillion liters Fresh water is only 3% of this or 40.8 quintillion liters

1 360 000 000 cubic kilometers x 1 trillion liters

1 360 000 000 000 000 000 000 liters

or 1.36 sextillion liters

Fresh water is only 3% of this

or 40.8 quintillion liters

HOW MANY PEOPLE ON EARTH? AS OF 9 30 A.M. ON JAN 6th 2009 THERE WERE…. 6, 720,593,800 PEOPLE ON EARTH (EST) IF ALL THE FRESH WATER WAS SHARED OUT EQUALLY EACH PERSON WOULD HAVE…. ABOUT 6.1 BILLION LITERS OF WATER EACH!!!!!!!!!!! YEP IT’S TRUE ! THE ARITHMETIC IS CORRECT. BUT…………….?????

AS OF 9 30 A.M. ON JAN 6th 2009 THERE WERE….

6, 720,593,800 PEOPLE ON EARTH (EST)

IF ALL THE FRESH WATER WAS SHARED OUT EQUALLY EACH PERSON WOULD HAVE….

ABOUT 6.1 BILLION LITERS OF WATER EACH!!!!!!!!!!!

YEP IT’S TRUE ! THE ARITHMETIC IS CORRECT.

BUT…………….?????