GEOG 1114 1st Edition Lecture 17 Outline of Last Lecture Measuring climates according to climate controls Circulation patterns Air masses Ocean currents Location Classifying Climates Climatic Zones Climographs Major Climate types their groupings Outline of Current Lecture Characteristics of water Global water storage Uneven distribution Current Lecture Characteristics of Water Finite Resource Unique Characteristics Liquidity only substance to found in all three states of matter High Heat Capacity Expands as it cools These notes represent a detailed interpretation of the professor s lecture GradeBuddy is best used as a supplement to your own notes not as a substitute Capillarity Universal Solvent Dissolves almost all substances moves recycles nutrients picks up moves and dissolves Fluvial processes shapes earth s crust erosion weathering landform Ecosystem services Essential for life Water Planet Finite Resource 97 2 Oceans 2 0 Glacial 0 5 groundwater 25 Surface water 04 Soil moisture 001 atmospheres Global Water Storage has an uneven distribution Oceans 97 20 Glaciers 2 00 Groundwater 0 50 Surface water 0 25 Soil moisture 0 04 Atmosphere 0 0001 Storage Oceans 97 2 Distribution Vast majority of surface is oceans 76 5 oceans Smaller bodies seas gulfs and bays estuaries where salt and fresh water meet Characteristics of Ocean Water Chemical Composition Contains dissolved minerals Sodium and chlorine Salinity During evaporation desalinization occurs Increasing acidity Carbon dioxide absorbed by ocean water creates carbon Temperature Decreases with increasing latitude ranges 28 80 degrees F Density high temperature means low density High salinity means high density Movement Tides Currents waves Tides vertical bulges Gravitational attraction of Moon lunar tides and Sun solar tide Two bulges form on opposite sides of planet Two tidal cycles in 24 hours Flood tide Ebb tide Monthly tidal range due to position of earth s moon and sun Waves Disturbances to the sea surface movement of energy Wind Little Forward progress is observed Wave breaking can result in shifting of water Ice Sheets and Glaciers Cryosphere 2 Second greatest storage of the Earth s water Two groups ice on land ice in water Fresh Water Approximately 10 of the Earth s surface is ice Groundwater 5 Water beneath land surface worldwide Precipitation or water basins are the sources Quantity held depended on Porosity Permeability Aquifers and aquicludes
View Full Document
Unlocking...