Climate model initialization: first report on the added value of using data from INTAROS

The first results of the work performed in Task 6.1 are described, that has the main goal of improving the skill of climate predictions, investigating the benefits related to the exploitation of INTAROS data.

In particular,results from seasonal and decadal prediction systems are presented, with two different General Circulation Models (NorCPM and EC-Earth), with a central focus on the predictive capacity over the Arctic region. The major goals have been addressed:

1) Disentangling the predictability that arises from the initialization of different climate components (sea ice, ocean, hydrology), and the benefits related to the assimilation of specific observational products.
2) Quantifying their impact on prediction quality, from the main forecast biases to specific skill metrics