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The article discusses the results of a study which used the Nereid Under Ice (NUI) hybrid remotely operated vehicle system to perform a detailed in-situ characterization of photosynthetically-driven biological communities in the Arctic Ocean. Topics mentioned include use of the device to determine critical parameters to support photosynthetically-based ecosystems, fiber-optic tether device embedded in the system, and usability of the NUI in conditions similar to the Polar regions.

This technical paper describes existing capabilities and new research results for autonomous underwater vehicles (AUVs) for use in locating, characterizing, and monitoring underwater munitions. The authors introduce advances in sensor technologies and search methods pertinent to AUV-based underwater munition mitigation operations. Results are presented from a series of trials using in situ chemical sensors to detect both conventional and nonconventional underwater munitions in real time. These technologies are considered within the context of chemical plume tracing and biomimetic search algorithms. This paper concludes with a look toward future AUV sensor payloads with more extensive real-time situation awareness. Advancement of these technologies and methods will be critical for realizing the potential of AUV platforms to manage the risks posed by underwater munitions sites. [ABSTRACT FROM AUTHOR]

An abstract of the article "Influence of Ice Thickness and Surface Properties on Light Transmission Through Arctic Sea Ice," by Christian Katlein et al is presented.