Summary
Summary IEB Grade 12 Geography-Urban climates
- Module
- Institution
IEB Geography notes for Grade 12 These notes are on Urban Climates
[Show more]
Seller
Follow
Accoutingstudent3rdyear
Reviews received
Content preview
Subtropicalanticyclones
Location and general characteristics of high-pressure cells that
affect South Africa
Location of high – pressure cells
o South Africa lies between latitudes 22° S and 35° S.
o This position means our climate is dominated by the belt of subtropical highs that circle
Earth at 30° S.
o In southern Africa there are three cells of high pressure, or anticyclones, that form part
of this belt of subtropical highs: the South Atlantic anticyclone, the South Indian
anticyclone and the Kalahari anticyclone.
General characteristics of high-pressure cells
o The subtropical highs are caused by air subsiding from
the tropical and mid-latitude cells
o Anticyclones bring descending, dry, warming air
resulting in clear skies and sunshine, which is why most
of southern Africa is dominated by this type of weather.
o At the surface, an anticyclone in the southern
hemisphere has winds blowing around the high in an
anticlockwise direction.
Anticyclonic air circulation around South Africa
and its influence on weather and climate
o The South Atlantic, South Indian and Kalahari
anticyclones affect South Africa’s climate all year.
o They cause descending warming air and dry conditions for most of the year.
o Their positions change slightly all the time and this is what gives us changing seasonal
climate and changing weather conditions on a weekly or even daily basis.
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Accoutingstudent3rdyear. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for £3.60. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82265 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy revision notes and other study material for 14 years now