Abstract. Monitoring changes in glacial dynamics is essential for understanding the environmental response to accelerated climate warming in the Arctic. However, geodetic surveys in polar regions continue to present considerable challenges because of the harsh environmental conditions and the polar night. This study records a 14-year-long time series (2006–2019) of global navigation satellite system (GNSS) surveys of the positions of 16 ablation stakes distributed across Hansbreen, a tidewater glacier in southern Svalbard. The measurements were conducted with an exceptionally high temporal resolution, from about 1 week to about 1 month, and covering altitudes ranging from 20 to 490 m a.s.l. The position of one stake was surveyed every day. The primary data products consist of the stake coordinates and velocities. Time series of annual and seasonal velocities are also provided. This dataset may be a subject of further studies of glacier dynamics in relation to the long-term and seasonal impact of climate change on ice flow in the region. It also offers unique material for tuning numerical models of glacier dynamics and for validating satellite-derived products such as velocity and digital elevation models. The dataset described here has been made publicly available through the Zenodo repository: https://doi.org/10.5281/zenodo.8289380 (Błaszczyk et al., 2023).

中文翻译：

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斯瓦尔巴群岛潮水冰川 Hansbreen 速度的高时间分辨率记录

摘要。监测冰川动力学的变化对于了解北极气候加速变暖的环境反应至关重要。然而，由于恶劣的环境条件和极夜，极地大地测量仍然面临相当大的挑战。这项研究记录了全球导航卫星系统 (GNSS) 长达 14 年的时间序列（2006 年至 2019 年）对分布在斯瓦尔巴群岛南部的潮水冰川汉斯布林 (Hansbreen) 上的 16 个消融桩的位置进行的调查。测量以极高的时间分辨率进行，从大约 1 周到大约 1 个月，覆盖海拔范围从 20 米到 490 米。每天测量一根木桩的位置。主要数据产品包括桩坐标和速度。还提供了年度和季节速度的时间序列。该数据集可能是进一步研究冰川动力学与气候变化对该地区冰流的长期和季节性影响相关的主题。它还提供了独特的材料，用于调整冰川动力学数值模型和验证卫星衍生产品，例如速度和数字高程模型。这里描述的数据集已通过 Zenodo 存储库公开：https://doi.org/10.5281/zenodo.8289380（Błaszczyk 等人，2023）。