Arianna Rocchi was supported by the FPI grant (PRE2020-092994) from the Spanish Ministerio de Ciencia e Innovación (MICIN) and European Social Fund (ESF) “Investing in your Future”. The PolarChange project (PID2019-110288RB-I00) also received funding from the Spanish Ministerio de Ciencia e Innovación (MICIN). Further support was provided through an advanced grant from the European Research Council (ERC-2018-AdG #834162). This study is part of the POLARCSIC platform activities and had the institutional support of the “Severo Ochoa Centre of Excellence” accreditation (Grant CEX2024-001494-S funded by AEI 10.13039/501100011033) to the ICM CSIC