Proglacial sediments properties in High Arctic glacier foreland: A case study of Werenskioldbreen (Svalbard)

The glacier environment exhibit a high sensitivity to the global climate change leading to progressive deglaciation and the exposure of previously ice-covered land. The newly exposed terrain provides a valuable opportunity to observe rapid ecosystem changes, such as the accumulation of glacial sediments, the development of soil-forming and progressive alterations in water and biogeochemical cycles. While developing hydrological and hydrogeological models for the Werenskioldbreen proglacial expanding zone, we encountered a significant problem due to insufficient data for parameterizing glacial sediments, constituting the environment for water flow and storage. These data provide detail insight into the physicochemical parameters of glacial sediments and classify them in terms of grain size distribution, hydraulic conductivity, pH, and Corg, Nt and Pt contents. Samples for macroscopic examination and further laboratory analysis were collected from each different proglacial sediment in the profile. Macroscopic characterisation in the field was carried out in accordance with standards PN-EN ISO 14688-1 and PN-EN ISO 14688-2 introduced into the catalogue of Polish Standards in 2006 and are cited in PN-EN 1997-2:2009, known as Eurocode 7: Geotechnical engineering design - Part 2: Identification and investigation of soils.More information on the data acquisition methodology is included in the publication (same title) or can be obtained through the contact provided.

冰川环境对全球气候变化具有高度敏感性，这会引发渐进式冰川消融，并使此前被冰盖覆盖的陆地裸露出来。新近裸露的地表为观测快速发生的生态系统变化提供了宝贵契机，比如冰川沉积物的堆积、成土作用的发育，以及水文与生物地球化学循环的渐进性改变。在为韦伦谢德布雷恩冰川（Werenskioldbreen）的冰前扩张区构建水文与水文地质模型时，我们遇到了一个显著问题：用于参数化构成水流与储水环境的冰川沉积物的数据不足。本数据集详细揭示了冰川沉积物的物理化学参数，并依据粒度分布、导水率、pH值以及有机碳（Corg）、总氮（Nt）和总磷（Pt）含量对沉积物进行了分类。研究人员从剖面中各不同冰前沉积物位置采集了样本，用于宏观观测与后续实验室分析。野外宏观特征描述严格遵循2006年纳入波兰标准目录的PN-EN ISO 14688-1与PN-EN ISO 14688-2标准，且该标准被引用至PN-EN 1997-2:2009，即《欧洲规范7：岩土工程设计 第2部分：土壤识别与勘察》。有关数据采集方法的更多细节可参阅同名出版物，或通过所提供的联系方式获取。