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UEE Geography study materials
UEE Geography study resources

UEE Geography: Physical Geography: Process, Landform and Hydrograph

UEE Geography · Work through your exam, one topic at a time.

All guide sections

Physical Geography: Process, Landform and Hydrograph

Physical Geography on the UEE tests how confidently you link process to landform and climate to hydrograph. Questions often supply a location or data set and ask you to infer the mechanism, not merely name it.

Core processes and rules

  • Tectonics: divergent boundaries create rift valleys and mid-ocean ridges; convergent boundaries produce fold mountains, trenches and volcanic arcs. The Afar Triangle is a divergent triple junction.
  • Weathering breaks rock in situ; erosion transports the debris. Frost shattering dominates periglacial zones; hydrolysis dominates humid tropical regoliths.
  • Climatology: temperature falls about 6.5°C per 1,000 m in the troposphere (environmental lapse rate). Pressure belts shift with the ITCZ; relief, continentality and ocean currents modify regional climate.
  • Hydrology: a drainage basin's hydrograph responds to rainfall intensity, duration, basin shape, soil, vegetation and urbanization. Lag time shortens as impermeable surfaces increase.
  • Biogeography: biomes follow temperature and moisture; soil profiles vary with climate, parent material, relief and time.

Worked example

A coastal station at sea level records 28°C. A nearby peak reaches 2,500 m. Using the environmental lapse rate: 28 − (2.5 × 6.5) = 28 − 16.25 = 11.75°C. If the question specifies saturated ascent, use the saturated adiabatic rate (about 6°C/1,000 m) and state the assumption. Marks come from showing the rate and the subtraction.

Traps

Do not label all highland rainfall as relief rainfall without checking wind direction and moisture source. Do not confuse weathering with erosion. Do not mix adiabatic rates with the environmental lapse rate without justification.

Key points

  • Divergent boundaries: rifts and ridges; convergent: fold mountains, trenches, arcs.
  • Weathering is in situ; erosion involves transport.
  • Environmental lapse rate ≈ 6.5°C per 1,000 m.
  • Urbanization shortens lag time and raises flood peaks.
  • Biome and soil patterns reflect temperature, moisture and parent material.