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variable > secchi depth

Preferred term

secchi depth  


  • n. is a measure of water trasparency in oceans and lakes. N. is measured by Secchi disk created in 1865 by Pietro Angelo Secchi. Secchi disk is a circular disk mounted on a pole or line, and the depth at which the pattern on the disk is no longer visible is taken as a measure of the transparency of the water.

Broader concept

Entry terms

  • secchi


  • [controlled by ] Alessandro Oggioni 23.05.2013 , "[controlled by ] Alessandro Oggioni 23.05.2013

Scope note

  • US LTER controlled vocabulary




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