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Topic: Thermocline


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In the News (Wed 30 Dec 09)

  
  Bass Fishing Resource Guide®: Thermocline - The Barrier
Thermocline: A transition layer in a thermally stratified body of water that separates zones of widely different temperature.
Temperature is really the key, but I usually fish the upper thermocline, which is generally what is suitable for most fish.
The clearer the water, the deeper the thermocline.
www.bassresource.com /fishing/thermocline.html   (787 words)

  
 Discount Hunting Gear, Government Surplus, Ammo, Shooting Supplies, Camping Gear, Outdoor Gear at The Sportsman's Guide
The epilimnion is the upper warmest layer, and the hypolimnion is the deepest, coldest layer of water.
You'll find that the thermocline layer will be of varying temperatures, cropping an average of 1 degree for each 1.82 feet of depth in the warm months on the average or typical, lake.
The size of the lake is important because the larger the body of water, the lower the thermocline and related strata.
www.sportsmansguide.com /tip/tip_read.asp?tid=140437&sid=14   (1621 words)

  
 DESCAR Software: pycnocline or thermocline and sea pollution
Where these two bodies of dense water meet there is a zone of rapid change in the water temperature, called the thermocline or picnocline.
Such a thermocline is a permanent feature of both tropical and temperature waters.
The stratification phenomena is the existence of two homogeneous water layers and separated by a thin thermocline layer.
www.canarina.com /seapollution.htm   (448 words)

  
  Thermocline
The thermocline is an area of water within the water column in which the warmer upper waters are prevented from mixing with those at a deeper level.
This is all very well, but the thermocline is not a constant presence, and as water temperatures change the ability to mix increases as the winter approaches.
The presence and depth at which a thermocline is likely to occur very much depends on the ability of the circulation within the pond to allow mixing.
www.broadwaters.fsnet.co.uk /thermocl.htm   (350 words)

  
  Thermocline - Wikipedia, the free encyclopedia
The thermocline (sometimes metalimnion) is a layer within a body of water or air where the temperature changes rapidly with depth.
When scuba diving, a thermocline of a few degrees Celsius can often be seen between two bodies of water, for example a colder upwelling or current running into a surface layer of warmer water.
A new thermocline develops where the densest water (4 °C) sinks to the bottom, and the less dense water (water that is approaching the freezing point) rises to the top.
en.wikipedia.org /wiki/Thermocline   (565 words)

  
 Earth Observatory Glossary   (Site not responding. Last check: )
The permanent thermocline separates the warm mixed surface layer of the ocean from the cold deep ocean water, and is found between 100- and 1000-m depths.
The thermocline reaches its maximum depth at mid-latitudes and is shallowest at the equator and at its northern and southern limits.
Thus, the thermocline acts as a barrier to the downward mixing of carbon dioxide.
eobglossary.gsfc.nasa.gov /Library/glossary.php3?xref=thermocline   (126 words)

  
 Thermocline: a transition layer between deep and surface water   (Site not responding. Last check: )
The thermocline is the transition layer between the mixed layer at the surface and the deep water layer.
The mixed layer and the deep water layer are relatively uniform in temperature, while the thermocline represents the transition zone between the two.
A deeper thermocline (often observed during El Niño years) limits the amount of nutrients brought to shallower depths by upwelling processes, greatly impacting the year's fish crop.
ww2010.atmos.uiuc.edu /(Gh)/wwhlpr/thermocline.rxml   (129 words)

  
 Thermocline Summary
In temperate freshwater lakes, the thermocline is disrupted in fall when the surface waters become denser as decreasing air temperatures cool the surface of the lake.
When scuba diving, a thermocline of a few degrees Celsius can often be seen between two bodies of water, for example a colder upwelling or current running into a surface layer of warmer water.
A new thermocline develops where the densest water (4 °C) sinks to the bottom, and the less dense water (water that is approaching the freezing point) rises to the top.
www.bookrags.com /Thermocline   (747 words)

  
 Thermocline@Everything2.com
The thickness of this mixed layer changes with the seasons and can affect local fish populations - a more resilient thermocline prevents the upwelling of nutrients from deeper waters, causing fish to move to more hospitable climates or, in smaller ecosystems, to die off.
It's also worth mentioning that the thermocline is mostly impermeable to sound waves - sound reflects back off the water of a different density, rendering SONAR ineffective.
Therefore a submarine is able to travel at high speeds below the thermocline and not be heard by vessels on the other side of the gradient.
www.everything2.com /index.pl?node_id=866332   (243 words)

  
 Understanding the saturation state of argon in the thermocline: The role of air-sea gas exchange and diapycnal mixing
Using a hierarchy of models, we develop a theoretical framework for understanding the physical processes controlling the magnitude and patterns of the saturation state of dissolved argon (δAr) in the ocean.
is determined by the relative strength of isopycnal ventilation and diapycnal mixing in the thermocline.
We extend the simple theory to a three-dimensional, continuously stratified ocean by deriving a mathematical relationship between diapycnal mixing, air-sea heat fluxes and the saturation state of argon.
www.agu.org /pubs/crossref/2006/2005GB002655.shtml   (459 words)

  
 Global seiching of thermocline waters between the Atlantic and the Indian-Pacific Ocean Basins
Proxy climate data from the Greenland icecap and marine deposits in the Pacific indicate that warm conditions in the North Atlantic are linked to cool conditions in the Eastern Equatorial Pacific, and vice versa.
We conjecture that the remotely forced changes in the thermocline of the Eastern Equatorial Pacific may trigger El Niño events.
Citation: Cessi, P. Bryan, and R. Zhang (2004), Global seiching of thermocline waters between the Atlantic and the Indian-Pacific Ocean Basins, Geophys.
www.agu.org /pubs/crossref/2004/2003GL019091.shtml   (260 words)

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