Snow height on sea ice and sea ice drift from autonomous measurements from buoy 2016S31, deployed during POLARSTERN cruise PS96 (ANT-XXXI/2) ...

• Main Authors: Arndt, Stefanie, Rossmann, Leonard, Nicolaus, Marcel
• Format: Dataset
• Language: English
• Published: PANGAEA 2017
• Subjects: DATE/TIME; LATITUDE; LONGITUDE; Snow height; Pressure, atmospheric; Temperature, air; Temperature, technical; Snow buoy; Advanced Remote Sensing – Ground-Truth Demo and Test Facilities ACROSS; Sea Ice Physics @ AWI AWI_SeaIce; Antarctic; Antarc*; Sea ice
• Online Access: https://dx.doi.org/10.1594/pangaea.875287; https://doi.pangaea.de/10.1594/PANGAEA.875287

Snow height was measured by the Snow Depth Buoy 2016S31, an autonomous platform, drifting on Antarctic sea ice, during POLARSTERN cruise PS96 (ANT-XXXI/2). The resulting time series describes the evolution of snow depth as a function of place and time between 16 Jan 2016 and 25 Jan 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 multi year ice. In addition to snow depth, geographic position (GPS), barometric pressure, air temperature, and an internal ice 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 ...