WJEC A-Level Geography Changing Landscapes (AS Unit 1): a deep dive on coastal and glaciated landscapes and their management
A deep-dive WJEC A-Level Geography guide to Changing Landscapes (AS Unit 1). Covers coastal and glaciated landscapes as systems, the processes of erosion, transport and deposition, the landforms they create, and how these landscapes are managed, with Welsh examples and the exam patterns WJEC repeats.
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What Changing Landscapes actually demands
Changing Landscapes is the physical-geography core of WJEC AS Unit 1. You study a landscape as an open system, learn the processes that operate within it, account for the landforms those processes produce, and evaluate how the landscape is managed as it changes over time. Examiners test two linked skills: precise, sequenced explanation of processes and landforms, and balanced evaluation of management, both anchored in located examples.
This guide ties together the three dot-point pages for the unit: coastal landscapes and processes, glaciated landscapes, and landform systems and management. Each has its own page with practice questions; this overview shows how they fit.
Coastal landscapes and processes
The coast is an open system with inputs (wave, wind and tidal energy, sediment), stores (beaches, dunes, spits) and outputs (sediment lost offshore), organised into sediment cells. Marine processes are erosion (hydraulic action, abrasion, attrition, solution), transport (longshore drift) and deposition; sub-aerial processes are weathering and mass movement. Destructive waves and resistant geology produce erosional landforms (wave-cut platforms, caves, arches, stacks), while constructive waves and longshore drift build depositional landforms (beaches, spits, bars). The Pembrokeshire coast shows headland-and-bay erosion on varied geology.
Glaciated landscapes
A glacier is an open system whose mass balance is the difference between accumulation and ablation. Ice erodes by abrasion and plucking, aided by freeze-thaw weathering, and transports debris on, in and under the ice. Erosional landforms include corries, aretes, pyramidal peaks, glacial troughs, hanging valleys and ribbon lakes; depositional landforms include moraines, drumlins and erratics. Snowdonia preserves classic corries, aretes and U-shaped valleys from the last glaciation, making it the natural Welsh case study.
Landform systems and management
Coastal and glaciated landscapes sit in dynamic equilibrium, restored by negative feedback and amplified by positive feedback. Human activity (building, tourism, dredging, farming) and climate change shift the balance, so these landscapes are managed. Hard engineering (sea walls, groynes, rock armour) resists processes but is costly and can starve neighbouring coasts of sediment; soft engineering (beach nourishment, managed realignment, dune restoration) works with processes and is more sustainable. Shoreline management plans choose to hold the line, advance, retreat or do nothing, as the Fairbourne decision in Gwynedd illustrates.
How Changing Landscapes is examined
A typical WJEC profile for this unit:
- Process and formation questions. Sequence the processes that form a named landform (a stack, a corrie, a glacial trough).
- Data response. Interpret maps, photographs, hydrographs or field data on a landscape.
- Management evaluation. Assess hard versus soft engineering with a located example and a clear judgement.
- Extended answers. Explaining landform formation and assessing management are both predictable extended-response tasks.
Check your knowledge
A mix of process, formation and evaluation questions covering the whole unit. Attempt them under timed conditions, then check against the solutions.
- Define the term sediment cell. (2 marks)
- Explain how a wave-cut platform is formed. (4 marks)
- Describe how longshore drift transports sediment along a coast. (3 marks)
- Define glacial mass balance. (2 marks)
- Explain the formation of a corrie and the features associated with it. (4 marks)
- Distinguish between erosional and depositional glacial landforms, giving an example of each. (3 marks)
- Explain one disadvantage of using groynes to manage a coastline. (3 marks)
- Assess the use of managed realignment as a coastal management strategy. (4 marks)