7.1.4
River Regimes
Test your knowledge with free interactive questions on Seneca — used by over 10 million students.
The Yukon
Different rivers experience different variation in discharge. The following factors affect flows of the Yukon:

Climate
- The Yukon River flows through Alaska.
- Conditions in Alaska are highly variable across the seasons. In the winter, conditions are near polar, but temperatures soar in the summer.
- The Yukon River flows through different types of climate including tundra and mountain.

Seasonality
- In winter, precipitation is frozen.
- This causes the Yukon's flow to be low.
- In summer, there is precipitation that does not freeze and also snowmelt of the winter’s precipitation.
- This causes the Yukon's flow to be high.

Human influence
- As the area is a largely natural landscape, there is very little human influence on the river’s flow.
The Amazon
Different rivers experience different variation in discharge. The following factors affect flows of the Amazon:

Climate
- The Amazon River flows through the Amazon rainforest where the climate is tropical.
- Although the Amazon has a relatively consistent high temperature and rate of precipitation, there is some seasonal precipitation that leads to a lower river discharge.
- The temperature and high biodiversity lead to very high levels of evapotranspiration.

Seasonality
- Consistent temperatures and rainfall create a largely consistent river flow. Some lower rainfall in September and December leads to a lower river flow.
- La Niña and El Niño years also produce changes in rainfall, which affects river discharge levels.

Human influences
- Deforestation affects interception, infiltration and surface runoff increasing the flow.
- Large dams used by Brazilian cities for both hydroelectric power and irrigation can cause more discharge above the dam and a reduced flow below the dam.
The Murray-Darling
Different rivers experience different variation in discharge. The following factors affect flows of the Murray-Darling:

Climate
- The Murray-Darling is in Australia where the climate is seasonal sub-tropical.
- Most of the Murray-Darling's basin is in a rain shadow.
- This means that the basin is surrounded by mountains that collect most of the region's rain. This can cause periods of prolonged drought.
- The tributaries to the north experience a monsoon climate, whilst the southern tributaries experience temperate climate.
- There are wet (Aug-Nov) and dry (Jan-Apr) seasons that cause high and low river flows respectively.

Seasonality
- There is a high seasonal variability for the Murray-Darling’s discharge because of the clear wet and dry seasons.
- The river is also impacted by the changes in rainfall patterns during La Niña and El Niño years.
- La Niña brings cooler than normal sea surface temperatures and wetter weather to Australia.
- El Niño brings the opposite; less rainfall.

Human influence
- Water is drawn from the Murray-Darling for use in Australia’s cities and also to irrigate farms.
- The natural flow paths of the river have been altered for human access, which has led to loss of habitat for local animals and a decline in quality of water.
1Tectonic Processes & Hazards
1.1Tectonic Processes & Hazards
1.2Natural Disasters
1.3Natural Disaster Case Studies
1.4Trends & Patterns
2Option 2A: Glaciated Landscapes & Change
2.1Glaciated Landscapes Over Time
2.2Periglacial Landscapes
2.3Glacial Processes
2.4Glacial Landforms
3Option 2B: Coastal Landscapes & Change
3.1Coastal Landscapes
3.2Coastal Erosion & Deposition
3.3Coastal Risks
4Globalisation
4.1Globalisation
4.2Negatives of Globalisation
4.3Global Shift
4.5Culture
4.6Measuring Development
5Option 4A: Regenerating Places
5.1Types of Economies
5.2Function of Places
5.3Regeneration
5.4Regeneration Case Studies
6Option 4B: Diverse Places
6.1Population Structure
6.2Past & Present Connections
6.3Urban & Rural Spaces
6.4Diversity
6.5Urban & Rural Case Studies
6.6Case Study - Tower Hamlets
6.7Case Study - Sturton-le-Steeple
7The Water Cycle & Water Insecurity (A2 only)
7.1Hydrological Processes Global to Local
7.2Influences on the Water Cycle
7.3Water Insecurity
8The Carbon Cycle & Energy Security (A2 only)
8.1The Carbon Cycle
8.2Energy Consumption
8.3Alternative Energy
8.4Growing Demand for Resources
9Superpowers (A2 only)
9.1Superpowers
9.2Hard & Soft Power
9.2.1Hard & Soft Power9.2.2Emerging Powers - China Rivalry9.2.3Emerging Powers - Chinese Sources of Power9.2.4Emerging Powers - Brazil9.2.5Emerging Powers - Russia9.2.6Emerging Powers - India9.2.7Theories of Development9.2.8Power Case Studies: Chinese One Belt One Road9.2.9Power Case Studies: Pakistan Nuclear Arms9.2.10Power Case Studies: OPEC
9.3IGOs, TNCs & Alliances
10Option 8A: Health & Human Rights (A2 only)
10.1Human Development
10.2Role of Governments & IGOs
10.3Human Rights
10.4Interventions
11Option 8B: Migration & Identity (A2 only)
11.1Globalisation & Migration
11.2Consequences of Migration
11.3Nation States
11.4Responses to Global Migration
Jump to other topics
1Tectonic Processes & Hazards
1.1Tectonic Processes & Hazards
1.2Natural Disasters
1.3Natural Disaster Case Studies
1.4Trends & Patterns
2Option 2A: Glaciated Landscapes & Change
2.1Glaciated Landscapes Over Time
2.2Periglacial Landscapes
2.3Glacial Processes
2.4Glacial Landforms
3Option 2B: Coastal Landscapes & Change
3.1Coastal Landscapes
3.2Coastal Erosion & Deposition
3.3Coastal Risks
4Globalisation
4.1Globalisation
4.2Negatives of Globalisation
4.3Global Shift
4.5Culture
4.6Measuring Development
5Option 4A: Regenerating Places
5.1Types of Economies
5.2Function of Places
5.3Regeneration
5.4Regeneration Case Studies
6Option 4B: Diverse Places
6.1Population Structure
6.2Past & Present Connections
6.3Urban & Rural Spaces
6.4Diversity
6.5Urban & Rural Case Studies
6.6Case Study - Tower Hamlets
6.7Case Study - Sturton-le-Steeple
7The Water Cycle & Water Insecurity (A2 only)
7.1Hydrological Processes Global to Local
7.2Influences on the Water Cycle
7.3Water Insecurity
8The Carbon Cycle & Energy Security (A2 only)
8.1The Carbon Cycle
8.2Energy Consumption
8.3Alternative Energy
8.4Growing Demand for Resources
9Superpowers (A2 only)
9.1Superpowers
9.2Hard & Soft Power
9.2.1Hard & Soft Power9.2.2Emerging Powers - China Rivalry9.2.3Emerging Powers - Chinese Sources of Power9.2.4Emerging Powers - Brazil9.2.5Emerging Powers - Russia9.2.6Emerging Powers - India9.2.7Theories of Development9.2.8Power Case Studies: Chinese One Belt One Road9.2.9Power Case Studies: Pakistan Nuclear Arms9.2.10Power Case Studies: OPEC
9.3IGOs, TNCs & Alliances
10Option 8A: Health & Human Rights (A2 only)
10.1Human Development
10.2Role of Governments & IGOs
10.3Human Rights
10.4Interventions
11Option 8B: Migration & Identity (A2 only)
11.1Globalisation & Migration
11.2Consequences of Migration
11.3Nation States
11.4Responses to Global Migration
Practice questions on River Regimes
Can you answer these? Test yourself with free interactive practice on Seneca — used by over 10 million students.
- 1What happens to the Yukon River in summer?Multiple choice
- 2Why are human influences on the Yukon River minimal?Multiple choice
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- 4
- 5
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