The Secchi Disk is a 12-inch black and white plate attached to a rope or chain and lowered into a body of water until it is no longer visible. The depth at which the disk can no longer be seen is ...

A simple 19th-century tool is still useful to ocean scientists in the age of satellites, new research shows. The research is published in the journal Frontiers in Marine Science. A Secchi ...

Katie Senft, a researcher with the UC Davis Tahoe Environmental Research Center, lowers a Secchi disk to measure lake clarity in June 2021. Center researchers take dozens of such measurements ...

PRAIRIE CREEK — Community members got the chance to help out with an important project while soaking up the sun on Beaver Lake on Saturday. The Fourth annual Secchi Day, sponsored by the Beaver Lake ...

Teams of volunteers who headed out on Beaver Lake for the annual Secchi Day on Saturday were on a mission of citizen science. That is, to measure the reservoir's water clarity from one end to the ...

Fishermen in South Devon, UK, have turned their boats into "massive data platforms" for a citizen science study. They have become the first commercial fishers to gather data for the Secchi Disk Study, ...

In celebration of Lakes Appreciation Month, the annual Secchi Dip-In will be held from 10 a.m. to noon July 31 at Loch Lomond Reservoir. The public is invited to this outdoor, family-friendly event to ...

A simple 19 th Century tool is still useful to ocean scientists in the age of satellites, new research shows. A Secchi disk – historically called a “dinner plate” by sailors – is used in the open ...