April 9 - April 9th Ocean Chemistry, Ocean Tides (cont.),...

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April 9 th Ocean Chemistry, Ocean Tides (cont.), Oceanography (cont.) Thermal Properties - water consists of o 1. oxygen atoms o 2. hydrogen atoms o Water molecules attract each other – hydrogen bonds - Temperature affects the speed of molecules - Different densities (p) of water depending on the temp o Hot water sits on cooler water - Also seasonal thermocline, some flux depending on the area - Coral reefs are only in tropic or warmer water - Kelp forests are only in the cooler waters Light in the Ocean How does light propagate through seawater - travels in a wave, different lengths from different types of light Solar energy - electromagnetic radiation - u.v. radiation - microwaves - visible light o a component of EMR, is comprised of waves of differing colors
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1) Scattering – light reflects off air & water molecules, also dust, and other suspended particles 2) Absorption – light strikes a molecule, if molecule vibrates the electromagnetic energy is converted to heat a. in the case of plants, chemical energy (photosynthesis) Color – the longer the wave length the more easily absorbed or scattered 1m – 45% of light energy remains - 10m 84% absorbed
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April 9 - April 9th Ocean Chemistry, Ocean Tides (cont.),...

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