Snow height on sea ice and sea ice drift from autonomous measurements from buoy 2021S89, deployed during Antarctic Fast Ice Network 2021 (AFIN 2021) ...

• Main Authors: Arndt, Stefanie, Nicolaus, Marcel, Ockenfuß, Paul
• Format: Dataset
• Language: unknown
• Published: PANGAEA 2024
• Subjects: autonomous platform; buoy; drift; Sea ice; snow depth; DATE/TIME; LATITUDE; LONGITUDE; Snow height; Pressure, atmospheric; Temperature, air; Temperature, technical; Global positioning system, time since last fix; Quality flag, snow height; Quality flag, atmospheric pressure; Quality flag, air temperature; Quality flag, technical temperature; Quality flag, position; Snow buoy; ANT-Land_2021_AFIN; NEUMAYER III; Antarctic Fast Ice Network AFIN; Current sea ice maps for Arctic and Antarctic meereisportal.de; Sea Ice Physics @ AWI AWI_SeaIce; Antarc*; Antarctic; Arctic
• Online Access: https://dx.doi.org/10.1594/pangaea.964915; https://doi.pangaea.de/10.1594/PANGAEA.964915

Snow height was measured by the Snow Buoy 2021S89, an autonomous platform, installed in the Atka Bay, Antarctic during Antarctic Fast Ice Network 2021 (AFIN 2021). The resulting time series describes the evolution of snow height as a function of place and time between 07 Jul 2021 and 20 Jan 2022 in sample intervals of 1 hour. The Snow Buoy consists of four independent sonar measurements representing the area (approx. 10 m**2) around the buoy. The buoy was installed on fast ice. 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 and contains quality flags for different kinds for erroneous data. ...