In-depth AS Physical Geography notes covering all of the syllabus points in order for Hydrology, Rocks and Weathering and Atmosphere and Weather. I scored an A* across this course and dropped very few marks on this paper. I now read Geography at Durham University. These notes have plenty of detail ...
Assess the extent to which mechanisms of power have changed over time
Evaluate the view that development aid has been largely ineffective in reducing inequalities in developing countries
All for this textbook (7)
Written for
A/AS Level
CIE
Geography
Unit 1 - Core Geography (9696)
All documents for this subject (66)
4
reviews
By: andylees78 • 10 months ago
By: ishaankassam • 2 year ago
By: wenjingcheng523 • 2 months ago
great files, thanks a lot
By: sunnyli1 • 3 year ago
Seller
Follow
caspardewesselow
Reviews received
Content preview
Physical Crib Sheets : (Adair Verey)
Hydrology and Fluvial Geomorphology
1.1 The drainage basin system
Inputs : Precipitation
• Caused by one or more of the following processes :
• Uplift in a low pressure system (cyclonic or frontal precipitation)
• Uplift over a hill or mountain range (orographic precipitation)
• Uplift over a warm land or sea surface (=convectional precipitation)
• Air rises and expands, causing expansion cooling
• As air cools it reaches dew point temperature and condensation begins on condensation nuclei
Outputs : Evaporation, evapotranspiration and river discharge
- Evapotranspiration : Water exiting the system through either evaporation from surfaces or transpiration from
plants.
• Type of plants : More vegetation = greater evapotranspiration
- However more vegetation = ground shade and humidity store so counteracts
• Amount fo surface storage
• Season
• Humidity : PE decreases
• Sunshine : PE increases
• Wind Velocity : PE increases
• Temperature : Rate of PE increase
Note :
Evaporation = water changing from the liquid to vapour state
Transpiration = loss of vapour from plants through stomata
Potential Evapotranspiration = Maximum amount of water which could be evaporation under given conditions with
unlimited supply.
Soil Water Balance :
•Soil Moisture Loss : When ET>ppn soil begins to dry out in
summer : Rainfall is lowest and Et is highest
•Soil Moisture deficit : Occurs when there isn’t enough water to
supply the potential Evapotranspiration. Irrigation used to make
up the deficit
•Soil Moisture Recharge : In Autumn and Winter rainfall
increases, plant growth slows and temperature decreases so
ppn>ET
- River Runoff (Or ‘Runoff’) : The amount of water leaving the drainage basin system via the mouth of the river
• Size and length of the river
• Climate of the region
• Storms
• Urbanisation
• Water extraction
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 or Stuvia-credit 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 caspardewesselow. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $15.66. You're not tied to anything after your purchase.
