Getting intimate with aquatic sediments
The Unisense profiler’s microsensors can measure a range of variables. (Photo: Lee Bryant, Virginia Polytechnic Institute)
NIWA’s new micro-profiler enables us to study biogeochemical processes in aquatic sediments at a remarkably fine scale.
The profiler can take measurements on the seabed (or lake floor) in up to 100 m water depth. Several microsensors automatically probe into the sediment at increments of as little as 50 micrometres (about the width of a human hair).