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surements cannot be made simultaneously. To accurately represent the ambient light feld, a new instrument that houses eight Ocean Optics Inc. (Dunedin, Florida) spectrometers and eight optical fbers at fxed locations has been developed by Dr. Chuan-Chin Chiao in collaboration with the Marine Biological Labarotory in Woods Hole, Massachusetts, with National Science Foundation support. Three of these probes are placed next to each other facing the downwelling direction to measure polarization, and fve are placed at various angles to allow convergence at a single point, capturing the spectra of light illuminating that center. This system brings an improvement over the single-channel spectrometer by allowing all eight measurements to be made simultaneously and by capturing enough data points at known locations to obtain a semihemispherical representation of the ambient light feld. Data can be recorded immediately before or after the photograph of a feature has been taken and allows for simulations of the appearance of that feature under light from other directions. Testing of this system began in the summer of 2012 in Woods Hole and is expected to be fully functional by the summer of 2013, with the potential to make a valuable contribution to underwater optics. Acknowledgments The authors gratefully acknowledge funding from the U.S. Offce of Naval Research and the National Science Foundation, and thank professor Chuan-Chin Chiao for his valuable comments. References For a full list of references, contact Derya Akkaynak at deryaa@mit.edu. n Derya Akkaynak is a Ph.D. candidate at the MIT WHOI Joint Program in Applied Ocean Science & Engineering. She holds bachelor's and master's degrees in aerospace engineering from Middle East Technical University and the Massachusetts Institute of Technology, respectively. She is an American Academy of Underwater Sciences diver and Professional Association of Diving Instructors divemaster. Roger T. Hanlon is a senior scientist at the Marine Biological Laboratory's Marine Resources Center in Woods Hole, Massachusetts. He uses digital imagery and spectrometry to quantify camoufage and signaling in cephalopods and fsh. He holds a Ph.D. from the University of Miami and performed postdoctoral research at Cambridge University. 14 st / DECEMBER 2012 www.sea-technology.com