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OAS insttype Detail for Secchi disk
| insttypes_id: |
38 |
| Codeset: |
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| Code: |
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| Term: |
Secchi disk |
| Description: |
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| Definition: |
The Secchi disk (or Secchi disc), as created in 1865 by Angelo Secchi, is a plain white, circular disk 30 cm (12 in) in diameter used to measure water transparency or turbidity in bodies of water. The disc is mounted on a pole or line, and lowered slowly down in the water. The depth at which the disk is no longer visible is taken as a measure of the transparency of the water. This measure is known as the Secchi depth and is related to water turbidity. [Wikipedia, 2021-09-02] |
| Context: |
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| Deprecated: |
false |
| Metadata version: |
1 |
| Keydate: |
2000-10-18 04:00:00+00 |
| Editdate: |
2021-09-02 13:38:35+00 |