UDASH - Unified Database for Arctic and Subarctic Hydrography

Oceanographic data in high latitudes are sparse in both space and time. Most of these data are publicly available from different online archives. They often contain redundant profiles and data of different quality. To date, none of these archives offers a complete collection of all available temperature and salinity (T/S) measurements in the Arctic Ocean with a uniform quality level. We therefore compiled UDASH, a comprehensive hydrographic database of the Arctic Ocean, which aims at including all publicly available data. It so far consists of 288 532 quality-checked oceanographic profiles between 1980 and 2015, starting at 65°N.