zonal climates Flashcards
what is the climate like in the tropical wet climate?
-Temperatures between 28-30 degrees Celsius
-rainfall at 2000mm per annum
-there is a dryer season between june- october
what human activities take place in the tropical wet climate?
-deforestation
-logging
-cattle ranches
-new infrastructure
-saw mills
-slash and burn
-mining
what are the population numbers like in the Tropical wet climate?
- amazon rainforest is the ancestral home to 1 million Indians
-400 tribes- Huli ,Kayapo, yanomami
-one of the lowest population densities on earth at 0.2 people/ km 2
Explain the Costa Rica Orange peel experiment.
-12,000 tonnes of orange peel were thrown on deforested land
-16 years after the landform has been completely rejuvenated
-this took place in the 1990’s
What is the climate of the semi- arid regions?
- they are found between the tropics
-they are a transition zone between tropical rainforests and arid deserts
-250-500 mm per annum of rainfall
-hot summers up to 40 degrees c and cool winters from 10- 15 degrees c
-characterised by savannah vegetation- tall grassland and occasional tree
What human activities are in the semi- arid regions?
- population density differs but in the Sahel it is 8 people/ kem 2
-overgrazing
-drought
-overpopulation
-climate change
-soil erosion
-soil degradation
what effects is climate change having on the Sahel?
-making rainfall less reliable and therefore agriculture more difficult
-since 1950 decrease in rainfall and since 1970 widespread severe droughts
-possible increase of rainfall levels now due to climate change because of the northerly migration of tropical rain belts.
what is the climate in the tropical monsoon climate?
- It has distinguished wet and dry seasons
-summer wet season is from may- October when the sun is overhead heating up the ground and causing a low pressure belt
-in winter cool dry winds blow from the Asian inferior to the sea with any moisture being lost over the Himalayas before descending to the coast
Where is the wettest place on earth?
The wettest place on earth is Mawsynramin india.
-It has an annual mean rainfall of 11,871 mm per annum
-The wettest month ever recorded was 10 miles from here in cherrapunji when 9300 mm fell in july 1861
What is the climate in The polar tundra?
- Tundra ice caps cover 20% of the earth
-hours of summer sunshine may be long at such high latitudes but temps rarely rise above 0
What human activities take place in the Polar tundra climate?
-about 4 million people live in tundra regions in total
-fishing, tourism
-Inuits indigenous people have been living for thousands of years and rather than land based agriculture they hunt caribou, seals and fish in a sustainable way
What is a zonal climate?
A zonal climate is an area with a distinct climate