Standardized grain size data of sediment core PG1975-1 from Lake Elgene-Kyuele (Russia)

This data set is part of a larger data harmonization effort to make lake sediment core data machine readable and comparable. Here we standardized grain size element data of sediment core PG1975-1, retrieved in 2009 from Lake Elgene-Kyuele (lower Lena River, Yakutia, Russia) at 4.8 m water depth. The thermokarst lake Elgene-Kyuele is situated in the forest tundra and has several small outflows and one visible inflow. It lies at an elevation of ca. 147 m a.s.l. with a surface area of ca. 1.34 km2 and a maximum lake water depth of estimated 10.5 m. The 1.26 m sediment core was retrieved by a UWITEC hammer action gravity corer during the RU-Land_2009_Lena-transect expedition of the Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research (AWI, Germany, Potsdam) in cooperation with the North Eastern Federal State University (NEFU, Russia, Yakutsk). Grain-size was measured by COULTER LS 200 Laser Diffraction Particle Analyser at AWI Potsdam.

本数据集隶属于一项更大规模的数据协调整合工作，旨在实现湖泊沉积物岩芯（sediment core）数据的机器可读化与跨样本可比性。本次研究对2009年从俄罗斯雅库特地区勒拿河下游埃尔盖涅-库耶勒湖（Lake Elgene-Kyuele）水深4.8米处钻取的PG1975-1号沉积物岩芯的粒度元素数据开展了标准化处理。该热喀斯特湖（thermokarst lake）埃尔盖涅-库耶勒地处森林苔原带，拥有多处小型出水口与一处可见入水口；其湖面海拔约147米，表面积约1.34平方千米，最大水深估算为10.5米。本次采集的1.26米沉积物岩芯，由德国亥姆霍兹极地与海洋研究中心阿尔弗雷德·魏格纳研究所（Alfred Wegener Institute Helmholtz Centre for Polar and Marine Research, AWI, 德国波茨坦）联合东北联邦大学（North Eastern Federal State University, NEFU, 俄罗斯雅库茨克），在RU-Land_2009_Lena-transect考察航次中，借助UWITEC锤击式重力岩芯取样器完成钻取。岩芯粒度由德国波茨坦AWI实验室使用COULTER LS 200激光衍射粒度分析仪（COULTER LS 200 Laser Diffraction Particle Analyser）完成测定。