EC: SECCHI_DISK
Status:
STD 2014/02/14
Code:
1437
Concept definition:
A circular material <
OBJECT
>, usually painted flat white, that is used to measure (subjectively) the <<
DEPTH_BELOW_WATERBODY_SURFACE
>> to which a <
HUMAN
> can see into a <
WATERBODY
>, in order to measure the transparency of the <
WATER
>; Secchi disk.
Reference type:
IR
Reference:
[
SECCHI
]
Supplemental references:
Group membership:
HYDROLOGY
WATERBODY_STATE
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