Snow height on sea ice and sea ice drift from autonomous measurements from buoy 2014S24, deployed during Antarctic Fast Ice Network 2014 (AFIN 2014)

• Main Authors: Nicolaus, Marcel, Stautzebach, Elena, Hoppmann, Mario
• Format: Dataset
• Language: English
• Published: PANGAEA 2015
• Subjects: 2014S24; ACROSS; Advanced Remote Sensing – Ground-Truth Demo and Test Facilities; AFIN; Antarctic Fast Ice Network; AWI_SeaIce; BUOY_SNOW; DATE/TIME; LATITUDE; LONGITUDE; Pressure; atmospheric; Sea Ice Physics @ AWI; Snow buoy; Snow height; relative; Temperature; air; technical; Weddell Sea; Antarc*; Antarctic; Ice Shelf; Sea ice
• Online Access: https://doi.pangaea.de/10.1594/PANGAEA.846859; https://doi.org/10.1594/PANGAEA.846859

Snow height was measured by the Snow Depth Buoy 2014S24, an autonomous platform, installed close to Neumayer III Base, Antarctic during Antarctic Fast Ice Network 2014 (AFIN 2014). The resulting time series describes the evolution of snow depth as a function of place and time between 07 Mar 2014 and 16 May 2014 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 depth, geographic position (GPS), barometric pressure, air temperature, and ice surface temperature were measured. Negative values of snow depth 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 depth may still be used for sea ice drift analyses. Note: This data set contains only relative changes in snow depth, because no initial readings of absolute snow depth are available.