As part of the "KROP - Kongsfjorden Rijpfjorden Observatory Programme" UiT The Arctic University of Norway and The Scottish Association for Marine Science maintain marine observatories (moorings) in two high-Arctic fjords in Svalbard: Kongsfjorden and Rijpfjorden. The observatories consists of an array of CTDs, temperature loggers, ADCPs and a sediment trap, in addition to various other instruments or installations that change from year to year. This dataset contains ADCP data from Kongsfjorden 2017-2018. The data files contain the unprocessed raw data. The instruments were a RDI Workhorse Sentinel 300 KHz, s/n 11047 (upward, 101 m) and s/n 11192 (downward, 106 m). A quality controlled, processed version will be added at a later stage. The "...D.000" file contains the downward looking ADCP data, the "...U.000" file the upward looking ADCP data. After 2018 there is a 3 year break in the time series due to failure of the mooring. The ADCP data series continues with the 2021-2022 deployment.