Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Geography > Water EQ2 > Flashcards

Water EQ2 Flashcards

You may prefer our related Brainscape-certified flashcards:
U.S. Geography flashcards World Geography flashcards
1
Q

What is the order of severity of droughts?

A

Meteological
Hydrological
Agriculture
Famine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What are some physical causes of drought?

A

Low rainfall
High temperatures
Blocking high pressure systems
El Nino/La Nina
Late monsoon seasons

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What is a monsoon?

A

A wet season lasting several months and happens in a number of regions around the planet e.g. South Asia

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Why do people rely on monsoon season?

A

For: agriculture, transport, food etc.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the ITCZ also known as?

A

The Inter Tropical Convergence Zone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What is the ITCZ?

A

An area of low pressure that forms due to the action of the Hadley cell where the North East trade winds meet the South East trade winds near the Earth’s equator.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is insolation?

A

The measure of the amount of solar energy spread over an area.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are the measurements that could be taken to monitor and record a drought?

A

Rainfall
Temperature
Soil moisture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What is PDSI?

A

Palmers Drought Severity Index
Temperature and precipitation data to estimate relative dryness

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are some human causes of drought?

A

High amounts of water abstraction
Global warming
Over farming
Removal of vegetation
Population increase

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is an ENSO cycle?

A

Climate cycle that operates every 2-7 years that can lead to droughts in different parts of the world

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What can prolonged high pressure systems cause?

A

Drought

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is a blocking high pressure system?

A

They act to block more unstable weather from moving in.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

How long can a high pressure system stay stationary over an area for?

A

Several weeks, months or years

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are some human factors that lead to drought?

A

Urban migration - larger pop. less water available
Deforestation
Irrigation - taking clean water for agriculture
Polluting water supplies
Building dams

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What are some human factors of the Brazil 2014-2015 drought?

A

Increasing illegal abstraction of groundwater

17
Q

What is the main physical cause of the Brazil 2014-2015 drought?

A

High pressure systems blocked the route of rain and it was redirected to Bolivia north west. Dry air remained over Brazil

18
Q

What are some human impacts of the Brazil drought?

A

Water rationing for 4 million people
Depletions of Brazil’s 17 largest reservoirs to dangerously low levels
Reduced crop of Arabica beans
Worst drought on record

19
Q

Physical causes of Australian drought?

A

Positive Indian Ocean Dipoles - stronger and intense climate impacts
Forest denser causing more flammable forest fires

20
Q

Human causes of Australian drought?

A

Over abstraction of groundwater
Removal of vegetation
Fire management shifting from fire prevention to fire suppression

21
Q

What is an ecosystem?

A

A community of organisms that interact with each other and their environment

22
Q

Why are ecosystems important?

A

Carbon storage
Human uses
Hydrological system

23
Q

What impact does drought have on forest ecosystems?

A

Impaired growth
Less food/home for animals
Foliage loss
Can’t photosynthesise

24
Q

Human causes of flooding?

A

Mismanagement
Deforestation
Changing landscape
Urbanisation
Agriculture

25
Q

Physical causes of flooding?

A

Drainage basin shape
Consecutive rainfall events
Intense storms
Snow/ ice melt
Intense monsoon season

26
Q

How is climate change influencing the hydrological system?

A

As the climate warms, the water cycle intensifies
Globally, water vapour concentration in the lower atmosphere has increased by 3-4%
Amount and intensity of precipitation is set to increase due to evaporation

27
Q

What is a tipping point?

A

If we go past a certain point a series of processes will occur which we have no control of

Geography (6 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions