Google Earth Image of Dongsha Atoll with approximate
location of DTS cable.
Fiberoptic cable deployed behind a small boat
on the reef flat. The small dot on the horizon is
the scaffolding platform where the DTS
base station is located.
But, we're ready for them!
Yesterday, we completed the setup of the distributed temperature sensor (DTS), which includes 4 kilometers of fiberoptic cable laid from the lagoon, over the reef flat, and
down the fore reef slope to 50 m depth offshore - acting as an internal wave antenna (see blog post on May 27th for more detail on the DTS). The DTS measures temperature and along with other instruments we have deployed on the reef, will allow us to better understand how much of the deep offshore water the internal waves bring onto the shallow reef and how it affects the corals that live there.
Aryan, Austin, and Kristen are very excited to have an
empty reel! Note the yellow "lazy susan" that saved the day!
DTS cable over spur and groove formations
on the fore reef slope.
- Kristen Davis
Coastal Dynamics Lab
University of California, Irvine
Kristen places a temperature sensor on the cable to
calibrate the DTS signal.