ENVS 1126 Lecture : OCS 1005 Lecture 13
Document Summary
Ocean is stratified into 3 density zones by temperature and salinity: ocean is divided into 3 density zones, surface zone- upper layer of the ocean, containing the least dense water. Surface zone is about 2% of total ocean volume: pycnocline: zone in which density increases with depth. Sea-surface temperatures during northern hemisphere summer: why highest temperature in the northern hemisphere, why highest temperature in the western ocean basin (except for indian. Ocean): the ocean circulation and current moves from low latitude to high latitude. Sea-surface average salinities in parts per thousand (%per thousand: why in the equatorial area s is relatively low, lower salinity towards the bottom of pacific ocean. Sun is hot most of the energy is within visible band. Earth is not hot energy is within infrared band. Absorption spectrum of the atmosphere and various gasses (ex: greenhouse gasses: carbon dioxide and water vapor are effective in absorbing infrared radiation.
