Distance between ROV and sea ice from ROV survey PS122/4_47-31 on 2020-07-14, survey 1 ...

• Main Authors: Anhaus, Philipp, Katlein, Christian, Matero, Ilkka, Nicolaus, Marcel, Arndt, Stefanie, Krampe, Daniela, Lange, Benjamin Allen, Regnery, Julia, Rohde, Jan, Schiller, Martin
• Format: Dataset
• Language: English
• Published: PANGAEA 2022
• Subjects: BEAST; MOSAiC expedition; Remotely operated vehicle ROV; Sea ice; Sea-ice draft; DATE/TIME; Survey ID; Distance, relative, X; Distance, relative, Y; Quality flag, position; DEPTH, water; Distance to sea-ice bottom; Sea ice draft; Remotely operated sensor platform BEAST; Digital precision altimeter, Tritech, PA500; Calculated; PS122/4; Polarstern; FRontiers in Arctic marine Monitoring FRAM; Multidisciplinary drifting Observatory for the Study of Arctic Climate MOSAiC; Sea Ice Physics @ AWI AWI_SeaIce; Arctic
• Online Access: https://dx.doi.org/10.1594/pangaea.951751; https://doi.pangaea.de/10.1594/PANGAEA.951751

The distance between a remotely operated vehicle (ROV) and the sea-ice underside was measured by a single-beam upward-looking acoustic sonar altimeter (Tritech PA500) attached to the ROV during the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition between November 2019 and September 2020. Sea-ice draft was derived by subtracting the distance to the sea-ice underside from the ROV depth, uncorrected for ROV attitude (pitch, roll). An offset between the depth reference (ROV bumper bars) and the altimeter of 0.105 m is accounted for in the presented data. ... : Sea-ice draft have not been checked for absolute height. Cross-check with drillings or open water patches before using, significant offsets can be possible. ...