This metadata record represents in-situ passive observations of suspended frazil ice from a hydrohole (-77.89475, 166.64835) in McMurdo Sound. These data were used in combination with the Accoustic Zooplankton Fish Profiler (AZFP) measurements which took simultaneous measurements at the same hydrohole (see cross-referenced metadata record).
Comprising a camera, back-lit plate, and diffuser set into a frame – was designed for the purpose of capturing in-situ, scaled images of suspended frazil crystals. The camera was deployed with a sharp field of view multiple times in the hydrohole. Polarizers were added to the frazil camera to enhance the contour of the crystals.
The frazil camera measurements link with the research objectives of Antarctic and High Latitude Climate (NIWA SSIF), specifically develop, deploy, and expand application of novel platforms for observation. This was a new camera and set-up design this year. This camera was designed to complement the AZFP measurements by allowing visual confirmation of the presence of frazil ice at depth, which was lacking for the Frazer et al. (2020) data from 2017.
GET DATA: natalie.robinson@vuw.ac.nz
