PPT-Objectives Describe how temperature, salinity and pressure affect compressibility &

of seawater and sound speed in seawater Know a typical value for sound speed in the ocean Discuss the loss of acoustic intensity attenuation due to spreading cylindrical and spherical absorption and scattering. Density & Salinity 4water. Hydrometers work on the principle that an object submerged in water must displace a weight ofwater equal to that of the object itself. Water (or any liquid) pushes on obj 3/18/12. What is water?. H. 2. O . Cohesion properties. Surface tension due to hydrogen boding. What are the factors that affect currents and tides?. 1) Heat (solar). 2) Salinity . 2) Wind (atmospheric interaction). What . is an advantage of composites that aids in lowering maintenance costs?. What is a potential disadvantage of composites in a hot climate or conditions?. Describe the care maintainers must utilize with paint strippers on composite materials?. Part 5. Density Zones. The . ocean is broken . into . density zones. The 3 density . zones are controlled . by: . Temperature. salinity. Zone 1:. Surface . zone – the upper layer of the ocean, . least . Density Controls. Controlled by:. 1.) Temperature. 2.) Salinity. 3.) Pressure. Density increases with increasing salinity. Density increases with decreasing temperature.. Density increases with increasing pressure.. Actual Percentages. Water covers . 71% . of the Earth’s surface. The oceans contain . 97.25% . of all the water on Earth. 95% . of the ocean is still unexplored. 50% . of all know species are found in the oceans. Unit: Oceanography. What are the most common elements in sea water?. Water. Oxygen. Hydrogen. Salt. Sodium . Chlorine. Areas of High and Low Salinity. Of the five ocean basins, the . Atlantic Ocean . 2. The denser the atmosphere…. the greater its weight, and . the greater its air pressure.. 3. atmospheric pressure -. . a.k.a. .; . barometric pressure or air pressure.. the pressure due to the weight of the overlying atmosphere.. S6E3c. Describe the composition, location, and . subsurface topography of the world’s oceans.. S6E3d. Explain the causes of waves, currents, and tides.. Essential Question:. How does the temperature and salinity of water affect density. CDR Shawn Gallaher. Oceanography Department. 29 Jan 2015. CDR Shawn Gallaher. Maury Project. 10 July 2017. Specialties within Oceanography. 2. The physical properties and characteristics of seawater.. Danielle . Hettmann. and Chris . Saleh. SYST460 – Fall 2011. Static temperature:. . measure of the temperature at the surface of the aircraft. Ambient temperature: . measure of the temperature of the air in the region surrounding the aircraft. Section 11.2 – Properties of the Atmosphere 8 th Grade Earth and Space Science Class Notes Temperature Temperature – measure of the average kinetic energy of the particles in a material Higher the temperature = faster particle movement Properties of the Atmosphere Heat vs. Temperature Temperature – measure of how rapidly or slowly molecules move around. Higher the temperature = faster particle movement Heat - is the transfer of energy that occurs because of a difference in temperature between substances Soda and Density Differences. DEMO. Will the diet soda sink or float? Will the regular soda sink or float?. WHY!?!?. The Physics of water. Seawater’s . chemical reactions. affect how life functions in the .