ENV S 1 Lecture Notes - Lecture 10: Thermal Expansion, Overfishing, Land Management
Document Summary
Permeable boundaries within the ocean complicate efforts to regulate resource use and solve problems. Earth system science: an interconnected system of systems . Global weather as global heat (energy) transfer. Sun is major heat input along the equator moving toward poles (heat rises) Hadley cell circulation as atmosphere-ocean coupling that transfers that transfers heat across the globe. Greater precipitation around equator and poles- divergence points. Atmospheric heat flow and earth"s rotation create wind belts and regional climates coriolis effect - curve. Space & temperature in the global ocean. Surface layer (hot) thermocline (great change) deep water (cold) Water masses have distinct signatures determined by: N. atlantic and antarctic deep water formation drives. Differences in movement by depth: ekman transport & net water. Ocean currents driven by wind, water density differences, and tides. Old (can be up to 1000 years) The nutrients in upwelled waters feed primary producers, leading to high biological productivity. Driven by nutrients (n, p, fe, other micronutrients)
