BISC207 Lecture Notes - Lecture 2: High-Occupancy Vehicle Lane, Phosphorite, Manganese Nodule

• School: University of Delaware
• Department: Biological Sciences
• Course: BISC207
• Professor: Nauen Jennifer

Document Summary

Pressure of atmosphere at sea level is 1 atm as you descend in the water column the pressure increases 1 atm for every 10 m of depth. Pressure at 100m is 11x higher than pressure at sea level. No stable platform on which to work - need for gimbal. Major dangers and difficulties are associated with the deployment and retrieval of often extremely heavy instrument packages over the side of a research. Must be placed inside water tight containers called housings . Barnacles quickly adhere to and colonize the surface of virtually and solid. Of earth by 19th century most explored. 1950s undersea mt chains of oceanic ridges were found. Soundings made by lowering a line into the water with a lead weight attached problems. Can measure height of sea surface (precise to 2 or 4 cm) Tamu massif , largest volcano on earth and mt discovered 2013. Sediment ranging in thickness from 0 to several kilometers.