The data set contains raw datafiles from instruments that were moored in the Laptev Sea between 2013 and 2016. The moorings were operated as part of the Russian-German BMBF-funded Transdrift project. Four moorings (1893-T1, Kotelnyy, Vilkitzky, Taymyr-T1) were deployed in September 2013 and recovered in September 2014 aboard the RV Viktor Buinitsky. During the 2014 expedition, five moorings were re-deployed, two of which were recovered in 2015 (Taymyr-T1-14 and 1893-T1-14) and three in 2016 (Vilkitzky-T1-14, Vilkitzky-T2-14, Vilkitzky-T3-14) by a Russian expedition to the Laptev Sea. The attached files include raw data from numerous SBE37-CTDs, as well as some turbidity meters and 2 records from a Wetlabs Ecotriplet. The moorings also contained ADCP current profilers, which are not included in this file due to limitations in the Russian-German data agreements. A spreadsheet with coordinates and instruments as well as mooring schematics are included in the attachment.