The late John Glew contributed valuable equipment to the paleolimnology community for successful collection and processing of cores of sediment from aquatic ecosystems. Unfortunately, tubes that fit his hammer-gravity corer design are no longer conveniently available for purchase and, with his sudden passing, Glew gravity and coring equipment is difficult or impossible to access. In some field-sampling situations, other commercially available equipment present limitations. Here, we provide an updated design of the Glew gravity corer which accommodates a hammer-percussion instrument and overcomes limitations we have encountered when coring lakes in remote locations from floats of a helicopter or small, inflatable watercraft. Our approach integrates the ‘best of both worlds’ provided by the Glew and commercially available Uwitec designs, using readily available components. We updated the Glew corer tube collar to be compatible with standard, commercially available 90-mm external diameter (86-mm internal diameter) PVC tubing that fits Uwitec components (e.g., Uwitec rubber ‘piston’ and ‘stoppers’; using terminology of the Uwitec catalogue), and designed a spring-loaded gasket-style plunger that achieves greater suction than the standard Glew designs. We also updated the Glew vertical sectioner to be compatible with 90-mm-diameter core tubes typically ranging from 60–120 cm long. An outcome is consolidation of the Uwitec and Glew gravity coring systems, which has allowed for interchangeability and choice among use of original and hammer-driven Glew, Uwitec, and the new hybrid ‘Uwi-Glew-ee’ gravity corer and sectioner configurations, depending on logistical constraints of fieldwork and anticipated lake sediment composition. The parts and systems are available from University of Waterloo’s Science Technical Services (https://uwaterloo.ca/science-technical-services/).

中文翻译：

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建立在开放筒式取芯器和切片系统的基础上，以培养 John Glew 的持续遗产

已故的 John Glew 为古湖泊学界提供了宝贵的设备，以成功收集和处理来自水生生态系统的沉积物核心。不幸的是，适合他的锤式重力取芯器设计的管子不再方便购买，而且随着他的突然去世，Glew 重力和取芯设备很难或不可能获得。在某些现场采样情况下，其他商用设备存在局限性。在这里，我们提供了 Glew 重力取芯器的更新设计，它可容纳锤击仪器并克服了我们在从直升机的浮标或小型充气船只上对偏远地区的湖泊取芯时遇到的限制。我们的方法结合了 Glew 和商用 Uwitec 设计提供的“两全其美”，使用现成的组件。我们更新了 Glew 取芯管套环，使其与适合 Uwitec 组件（例如，Uwitec 橡胶“活塞”和“塞子”；使用术语Uwitec 目录），并设计了一个弹簧加载垫圈式柱塞，其吸力比标准 Glew 设计更大。我们还更新了 Glew 垂直切片机，以兼容 90 毫米直径的芯管，通常长度为 60-120 厘米。结果是 Uwitec 和 Glew 重力取芯系统的整合，这允许在使用原始和锤驱动的 Glew、Uwitec 和新的混合“Uwi-Glew-ee”重力取芯器和切片机配置之间进行互换和选择，取决于实地工作的后勤限制和预期的湖泊沉积物成分。零件和系统可从滑铁卢大学的科学技术服务中心 (https://uwaterloo.ca/science-technical-services/) 获得。