Rivers - Hydrological characteristics

What % of earth’s water is fresh

• 2.5% of earth water is freshwater

• 68.7% of freshwater is in glacier and ice sheets

• 30% groundwater

• 1.3% is in river, soil moisture, lakes and the atmosphere

What is the hydrological cycle?

• closed system recycling water constantly.

• Includes stores and flows (transfers).

List the stores in the hydrological cycle.

- Water in the atmosphere (vapour or droplets in clouds).

   - Surface stores (puddles, lakes, rivers, reservoirs).

   - Interception (water caught on leaves or branches).

   - Aquifers (water held in permeable rocks).

   - Ice, snow, seas, and oceans.

Name the main flows in the hydrological cycle.

   - Evaporation, condensation, transpiration, evapotranspiration.

   - Precipitation, overland flow, infiltration, percolation.

   - Throughflow, groundwater flow.