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<div style="font-size:100%; padding-bottom:0.15em;">Welcome to the [[Coastal Wiki]] an Internet encyclopaedia of [[Special:Statistics|{{NUMBEROFARTICLES}}]] information pages for and by coastal professionals providing up-to-date high quality Coastal and Marine information. An international [editorial board|Coastal_Wiki_Editorial_Board] manages the quality control of the Coastal Wiki. [[Coastal Wiki:Why, What and for Whom?|More about the Coastal Wiki]]</div>
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<div style="font-size:100%; padding-bottom:0.15em;">Welcome to the [[Coastal Wiki]] an Internet encyclopaedia of [[Special:Statistics|{{NUMBEROFARTICLES}}]] information pages for and by coastal professionals providing up-to-date high quality Coastal and Marine information. An international [[Coastal_Wiki_Editorial_Board|editorial board]] manages the quality control of the Coastal Wiki. [[Coastal Wiki:Why, What and for Whom?|More about the Coastal Wiki]]</div>
 
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Versie van 5 dec 2012 om 22:40

Welcome to the Coastal Wiki an Internet encyclopaedia of 2.195 information pages for and by coastal professionals providing up-to-date high quality Coastal and Marine information. An international editorial board manages the quality control of the Coastal Wiki. More about the Coastal Wiki

This month's featured article

Salinity sensors

Electrode Conductivity principle

Since as far as Ancient Greece times, attempts have been made to try to measure the "saltiness" of seawater. However, methods' efficiency was very incipient and their sensitivity and repeatability was very limited. During the Modern History more precise methodologies were developed: weighing after evaporation (Boyle,1693; Birch, 1965), solvent extraction (Lavoisier, 1772) and precipitation (Bergman, 1784). In 1865, Forchhammer introduced the term salinity and dedicated himself to measure individual components of seasalt rather than the total salinity. He found that the ratio of major salts in samples of seawater from various locations was constant.

Salinity is a ratio and not a physical parameter that can be measured(under PSS-78, see box). Thus, “Salinity sensors” do not exist. What is commonly referred to as a salinity sensor is in fact a conductivity sensor. More..

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Welcome to the Coastal Wiki, your guide to coastal knowledge and experience
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