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Double Check

At Cape Cod’s Waquoit Bay National Estuarine Research Reserve, 2010 Summer Student Fellow Cristin Luttazi records data as WHOI associate scientist Ann Mulligan (in the water) measures water level, temperature, and salinity. The researchers were taking independent measurements to compare with those taken by a new sensor developed in collaboration with Alan Gardner of WHOI and colleagues at MIT in order to verify that it was working as intended. The new sensor was designed to help study groundwater-seawater exchange and can operate for six months at a time, even in winter, to collect data every 10 to 15 minutes—something impossible to do by hand. (Photo by Jayne Doucette, Woods Hole Oceanographic Institution)