Narrator: This is Science Today. Since 1968, researchers at the University of California, Davis, have been continuously monitoring the clarity, chemistry and biology of California's Lake Tahoe. Geoffrey Schladow, director of the UC Davis Tahoe Environmental Research Center, says they have new technologies on the lake now, including six research buoys, one of which they share with NASA.
Schladow: It measures the meteorology on the lake, it measures the temperature in the lake and then the really fancy stuff is it has a thermal infrared imager that's measuring the skin temperature of the lake and that's the same measurement that satellites make.
Narrator: They're also using a suite of spectral instruments below the surface.
Schladow: These are measuring the light that comes into the lake and the light that's reflected up and we're using that to see how quickly it changes, if it changes every few minutes, if it changes day by day, so this is one of those things that's not really known at Tahoe or at any lake in the world.
Narrator: For Science Today, I'm Larissa Branin.