Physical geography #3

[notjustacabbie.livejournal.com]

Hydrology is the study of the movement, distribution, and quality of water throughout the Earth, both the hydrologic cycle and water resources.

The hydrologic cycle is the circulation of water within the earth's hydrosphere, involving changes in the physical state of water between liquid, solid, and gas phases. The hydrologic cycle refers to the continuous exchange of water between atmosphere, land, surface and subsurface waters, and organisms. In addition to storage in various compartments (the ocean is one such "compartment"), the multiple cycles that make up the earth's water cycle involve five main physical actions: evaporation, precipitation, infiltration, runoff, and subsurface flow.

Further details can be found here

What are the key uncertainties in seasonal predictions and long-term projections of water cycle variables, and what improvements are needed in global and regional models to reduce these uncertainties?

Or - How do the water cycle and its variability affect the availability and quality of water supplied for human consumption, economic activity, agriculture, and natural ecosystems; and how do its interactions and variability affect sediment and the movement of toxic chemicals and other substances?

Comments

[positive-angel.livejournal.com]

Chihaya cracks open his book and starts to read and work on the assignment. He also needs to speak with the professor about missing class last week.

[notjustacabbie.livejournal.com]

Keith is sitting at the front of the classroom, reading a Swansea A-to-Z. He makes a note on the register and looks up from the map.