diameter is 60 mm Piston coring technique fixed at tripod on ice or on floating platform Applicable at up to 100 m water depth Performs on ice and water Manual hammering with variable weights Approx. weight [...] AVAATECH. Er verfügt über Sensoren zur Erfassung der Elementchemie (RFA) und magnetischen Suszeptibilität (MS) sowie über eine Kameraeinheit zu hochauflösenden Digital-Fotografie und Messung von RGB-Farbdaten [...] mm Piston coring technique fixed at lake bottom Applicable at up to 300 m water depth Performs on ice and water Strong penetration of sand layers by motor driven hammering with 100 kg weights Approx. weight