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 ...

BEAVER LAKE — One big science experiment took place at Beaver Lake on Saturday when platoons of volunteers lowered black and white disks into the water to measure its clarity during Secchi Day.

INCLINE VILLAGE, Nev. — UC Davis Tahoe Environmental Research Center next week will be celebrate Father Angelo Secchi’s 203rd birthday. To honor him, TERC has declared Tuesday, June 29, to be Secchi ...

NO TUOLUMNE COUNTY THE WINDS ARE FAIRLY LIGHT. IT’S JUST THE AIR MOVING UP THE WEST SLOPE OF THE SIERRA. DURING THE DAY IT WILL COME BACK DOWN IN THE EVENING. SO FORTUNATELY THEIR LIGHT WINDS. BUT YOU ...

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 ...

CONNECTED TO THE VATICAN. I THINK THAT THE SKI DISC IS A REALLY VALUABLE TOOL BECAUSE IT’S SO EASY FOR PEOPLE TO UNDERSTAND THIS TEN INCH WHITE PLATE HAS A SIMPLE DESIGN. KNOWN GLOBALLY AS THE SKI ...

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 ...