Newfoundland and Labrador climate index

The Newfoundland and Labrador (NL) climate index aims to describe the environmental conditions on the NL shelf and in the Northwest Atlantic as a whole. It consists of annual normalized anomalies of 10 subindices with equal contribution: Winter North Atlantic Oscillation, air temperature, sea ice, icebergs, sea surface temperature, vertically-averaged temperature and salinity at Station~27, cold intermediate layer (CIL) core temperature at Station~27, CIL area on 3 hydrographic sections and bottom temperature on the NL shelf. This index runs from 1951 to 2025 and will be updated annually. Data associated with Cyr, F. and Galbraith, P. S.: A climate index for the Newfoundland and Labrador shelf, Earth Syst. Sci. Data, 13, 1807–1828, https://doi.org/10.5194/essd-13-1807-2021, 2021.