Geography
Physical processes, people and places.
KS5 / A-Level Ages 16–18
Water and Carbon
El Niño · Rainfall Lab
An interactive A-level geography simulation exploring how El Niño changes precipitation across the Pacific and influences the water cycle around the world. Three linked views connect the physical mechanism to its consequences. Pacific mechanism shows changing trade winds, warm-water distribution, upwelling and the eastward shift of rising moist air and rainfall. Regional water cycle compares neutral conditions with developing El Niño across Australia and Indonesia, the central/eastern Pacific, coastal Ecuador and northern Peru, and northern South America. Global connections explores contrasting seasonal rainfall tendencies through an interactive map. Students can animate the transition, adjust the development slider, pause the action and hide process labels to explain what they observe. Rainforest vegetation gradually browns as western conditions become drier, with possible wildfire effects illustrating a further consequence of reduced precipitation. Designed for teacher demonstration, guided exploration and revision, the simulation helps students build explanations linking atmospheric circulation, precipitation, soil moisture, runoff and water availability.
Groundwater Abstraction
Explore the impacts of groundwater abstraction through two animated simulations. Investigate how pumping lowers the water table inland, affecting wells, vegetation, river flow and ecosystems. Switch to a coastal aquifer to visualise saltwater intrusion as freshwater levels decline. Adjust abstraction rates and recharge, observe changes over time, and investigate what happens when pumping stops. Designed for A-level Geography students studying the water cycle and human impacts on groundwater systems.