Water in the World Flashcards
What is a primary/secondary source?
Primary
Raw materials of history, something created at the time of event. eg. maps, statistics, graphs
Secondary
Accounts/reports of a past event AFTER the event has occurred. eg. textbooks, articles, website
What is a flood?
Overflow of water in a body of water/watercourse. It forces channels to carry more than they can hold which spills on to floodplains, the lands parallel to the channels.
Types of Floods
Flash Floods
Short intense bursts of rainfall
Riverine Floods
When river, lakes or streams overflow
Coastal Floods
When water from the sea splashes on land
What are the types of rainfall?
Frontal Rainfall
When a warm air mass collides with a cold air mass
Orographic Rainfall
When moist are is forced to rise over high lands like mountains
Convectional Rainfall
When the heated air from the earth’s surface rises upwards along with the water vapour and gets condensed when it reaches a higher altitude
How does rain occur?
(Dew Points, Cold Air, Hot Air)
- It occurs when warm moist air cools and condenses into water droplets.
- Warm air can hold more water than cold air
- As the warm air continues to rise and cools, it will eventually reach the dew point.
- When the warm air cools above its dew point, the water vapour, water in a gaseous form, condenses into a liquid and it rains
What do the Indigenous People value water for?
- Indigenous Australians generally value water for cultural and spiritual reasons
- They see it as inseparable to the land
- Water is a key part of Indigenous culture
How did the Indigenous People manage water?
- Traditionally, Aboriginal people in water poor
areas of Australia relied on their knowledge to
survive - They accessed water trapped in waterholes, rocks and tree hollows
- They watched the flight paths of birds to uncover springs
- They followed the long roots of eucalypt trees to find water
- To catch fish, dams were built with woven branches and rocks
What values does water have?
Australians Economic and Aesthetic Values
Aboriginal and Torres Strait Islander People Cultural and Spiritual values
What are modern water management strategies?
Stormwater treatment systems, fish ladders, water restoration projects, wetland projects, etc…
How have Indigenous communities been impacted by modern water management strategies?
- River Flow has affected traditional food sources like fish and medicinal plants
- Dams and levees have disrupted their pathways and access points
- Lack of Indigenous representation, their voices are often excluded.