Snow height on sea ice and sea ice drift from autonomous measurements from buoy 2013S2, deployed during Antarctic Fast Ice Network 2013 (AFIN 2013)

• Main Authors: Nicolaus, Marcel, Hoppmann, Mario
• Format: Dataset
• Language: English
• Published: PANGAEA 2018
• Subjects: 2013S2; AFIN; Antarctic Fast Ice Network; AWI_SeaIce; Buoy; DATE/TIME; LATITUDE; LONGITUDE; Pressure; atmospheric; Sea Ice Physics @ AWI; Snow height; Temperature; air; technical; Weddell Sea; Antarctic; Neumayer; Weddell; Antarc*; Ice Shelf; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.887807; https://doi.org/10.1594/PANGAEA.887807

Snow height was measured by the Snow Depth Buoy 2013S2, an autonomous platform, installed close to Neumayer III Base, Antarctic during Antarctic Fast Ice Network 2013 (AFIN 2013). The resulting time series describes the evolution of snow height as a function of place and time between 11 Feb 2013 and 12 Jul 2017 in sample intervals of 1 hour. The Snow Depth Buoy consists of four independent sonar measurements representing the area (approx. 10 m**2) around the buoy. The buoy was installed on the ice shelf. In addition to snow height, geographic position (GPS), barometric pressure, air temperature, and an internal ice temperature were measured. Negative values of snow height occur if surface ablation continues into the sea ice. Thus, these measurements describe the position of the sea ice surface relative to the original snow-ice interface. Differences between single sensors indicate small-scale variability of the snow pack around the buoy. The data set has been processed, including the removal of obvious inconsistencies (missing values). Records without any snow height may still be used for sea ice drift analyses. Note: This data set contains only relative changes in snow height, because no initial readings of absolute snow height are available.