Where is the water?
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Topic: El Nino Moisture & Latitude El Nino In Action • El Nino In Action El Nino – La Nina • • • • • El Nino – La Nina – - Topic: Ground Water - - - - Sun Where is the water? Source % of Supply Oceans 97.08 Ice Sheets and Glaciers 1.99 Ground Water 0.62 Atmosphere 0.29 Lakes (Fresh) 0.01 Inland Seas / Salt Water Lakes 0.005 Soil Moisture 0.004 Rivers 0.001 Surface storage: - www.visitusa.com Runoff: - http://veimages.gsfc.nasa.gov/6566/Egypt.A2004201.0830.1km.jpg Infiltrate: - Where does your faucet water come from? - Long Island consists of gravels, sand, silt and clays Ground Water • - Pore Porosity - Unsaturated Saturated – • Water Table: –- Long Island Sound You are here Great South Bay Fire Island Permeability • - Impermeable • - Precipitation Evaporation The Water Cycle on Long Island http://www.scwa.com/ Can we influence our groundwater? www.euwfd.com FQ: What can we do to protect our ground water? ---- What are the affects of sediments on Groundwater? Porosity All the pore space Which sample has more porosity? Same Size vs. Porosity Increasing Porosity Particle Size Increasing Sorting of Sediments (unsorted) (sorted) Sorting vs. Porosity Increasing Porosity Poorly Sorted Sorting Well Sorted Which sample has more porosity? Shape vs. Porosity Increasing Porosity Flat (Clays) Shape Round (sands) Which sample has more porosity? Permeability Which sample is more permeable? Size vs. Permeability Increasing Permeability Particle Size Increasing Which sample is more permeable? Which sample is more permeable? *As permeability increases, - Infiltration Size vs. Infiltration Faster Infiltration Slower Small Size Large Slope vs. Infiltration Faster Infiltration Slower Gentle Steep Slope Water Cohesion and Adhesion www.atpm.com/13.10/tim-allen/ Water Retention - upload.wikimedia.org/wikipedia/en/0/0c/Bottle.jpg Size vs. Water Retained Increasing Water Retained Small Large Size Smaller particles have more surface area to stick on Capillarity — Size vs. Capillarity Increasing Capillarity Small Large Size FQ: Describe the porosity and permeability in unsorted sediments.
