![]() extension ideas/prompting questions for teachers.offer simple explanations of how climate change may impact the oceans’ chemical and physical properties.ĭownload the Word file (see link below) for:.describe how salinity affects water density.The water cycle is dominated by precipitation and evaporation. 97 of the Earths free water resides in the oceans. Salinity is the key to understanding the global water cycle. describe how temperature affects water density Along with temperature, it is a major factor in contributing to changes in the density of seawater and therefore ocean circulation.Learn more in the article Climate change, melting ice and sea level rise.īy the end of this activity, students should be able to: ![]() Melting land ice and increased rainfall – as consequences of climate change – have the potential to disrupt the oceans’ chemical and physical properties, which will impact this complex circulation system. Both types of currents work with the atmosphere to help shape the Earth’s climate. Deeper currents are driven by changes in water density. Surface currents in the top 400 m are driven mainly by wind. It moves water, heat, salt and nutrients around the world. Online calculator, figures and tables showing heat of vaporization of water, at temperatures from 0 - 370 ☌ (32 - 700 ☏) - SI and Imperial units.The ocean has a complex circulation system called the Global Ocean Conveyor. Temperatureįigures and tables showing the enthalpy and entropy of liquid water as function of temperature - SI and Imperial Units. Water - Density, Specific Weight and Thermal Expansion Coefficientsĭefinitions, online calculator and figures and tables with water properties like density, specific weight and thermal expansion coefficient of liquid water at temperatures ranging 0 to 360☌ (32 to 680☏). Temperature and PressureĪbsolute viscosity for water in centipoises for temperatures between 32 - 200 oF. Vicosity is a fluid's resistance to flow and can be valued as dynamic (absolute) or kinematic. Salinity - salt content - of fresh, brackish and sea water.Īttenuation of sound in seawater vs. Solubility of oxygen in equilibration with air in fresh water and seawater (salt water) - pressures ranging 1 - 4 bar abs. Oxygen - Solubility in Fresh and Sea Water vs. Viscosities of products and chemical species at varying conditions. For temperature, they differ slightly from Feistel 2003 and Feistel 2008, which is why, for temparatures different from 0, there is a slight offset from the estimates as. The coefficients from McDougall et al., 2009 were used. Material properties of gases, fluids and solids - densities, specific heats, viscosities and more. Pressure used here is 1 bar (true pressure), in contrast to hydrostatic pressure (0 bar at surface) in original formula. Pressure and Salinityĭensities of solids, liquids and gases. The density of seawater ranges from 1020 to 1030 kg/m 3 while the density of freshwater is about 1000 kg/m 3. Temperature and Salinityįreezing Point of Seawater vs. ![]() Temperature and SalinityĮlectrical Conductivity of Seawater vs. Salinity is normally quoted in units ‰ (parts per thousand):įor full table - rotate the screen! Seawater - Properties Temperatureĭensity of Seawater vs. Density calculated for salinity S = 35000 mg/l. Seawater temperature, saturation pressure, specific volume, specific heat, electrical conductivity and absolute viscosity. ![]()
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