bottom water

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bottom water

Lowermost layer of ocean water that can be distinguished by its characteristic low temperature, high density, and low oxygen content compared with surface waters. Most bottom waters are formed near Antarctica during the southern winter. The partial freezing of seawater over the Antarctic continental shelf produces salt-free ice and residual brine with a high density, which causes it to sink; it then flows northward along the seafloor. The Arctic Ocean is less important as a source of bottom water because it is isolated by barriers such as the Bering Sill and submarine ridges and banks between Greenland and the British Isles.

bottom water [′bäd·əm ‚wȯd·ər]

(hydrology)

Water lying beneath oil or gas in productive formations.

(oceanography)

The water mass at the deepest part of a water column in the ocean.

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No references found			[ILLUSTRATION OMITTED] This cold bottom water washing up on east Florida beaches originated in Antarctica. Antarctic water on Florida shores by Gilmore, R. Grant / Florida Sportsman Darwin's mechanism would suggest that they drag some of the colder, heavier bottom water up with them toward warmer, lighter water at the top. Smallest swimming animals have huge impact on large-scale ocean mixing by Asian News International The dead zone, more properly known as the Gulf's hypoxic zone, is an area in which the levels of oxygen in the water are too low to support most aquatic life in bottom and near bottom water, causing fish to leave the area and killing bottom-dwelling organisms that cannot leave. Point-counterpoint: two views of Gulf of Mexico's 'dead zone' by The Food & Fiber Letter			bottom flow bottom heave bottom hold-down bottom hole bottom ice bottom lateral bracing bottom line bottom load bottom loading pressure bottom moraine bottom pillar bottom plate bottom quark bottom rail bottom register bottom rot bottom sampler bottom sediment bottom settlings bottom shore bottom steam bottom stone bottom tap bottom terrace bottom time bottom water bottom wiper plug Bottom, Nick bottom-hole assembly bottom-hole cash bottom-hole choke bottom-hole packer bottom-hole plug Bottom-hole Pressure bottom-hole pressure bomb bottom-hole pump bottom-hole samples bottom-hole separator bottom-hole temperature bottom-unique bottom-up analysis bottom-up implementation bottom-up model bottom-up testing bottomed hole BottomFeeder bottoming drill bottomland bottomless hole Bottomless Lakes State Park Bottomley, Gordon			bottom rot fungus bottom round bottom sampler bottom sediment Bottom Sediment and Water bottom settlings Bottom sharking bottom shore Bottom Solids & Water Bottom Sounding bottom steam bottom stone bottom sweep bottom tap bottom terrace bottom time Bottom Up Bottom Up Approach to Investing Bottom Up Equity Management Style Bottom Up Investing Bottom Up Planning Bottom Up Review Bottom Up Review Update Bottom Up Working Group bottom water bottom wiper plug Bottom's Up Bottom, Nick bottom-dweller Bottom-dwelling Bottom-dwelling Bottom-feeder Bottom-feeder Bottom-feeder bottom-feeding bottom-feeding bottom-feeding bottom-fishing bottom-hole assembly bottom-hole cash bottom-hole choke bottom-hole packer bottom-hole plug bottom-hole pressure bottom-hole pressure bomb bottom-hole pump bottom-hole samples bottom-hole separator Bottom-Hole Shut-In Pressure Bottom-Hole Temperature Bottom-Hole Temperature bottom-line Bottom-Line Impact Groups Bottom-of-Basket Bottom-Simulating Reflector

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