This report presents a selection of data products from existing ocean and sea ice measurements under WP2 Task 2.2 (Exploitation of existing data towards improved data products). This is done by applying various methodologies for data processing to derive of geophysical and biogeochemical quantities that can be used further work in the project, especially in WP5 (Data management and integration) and in WP6 (Applications towards stakeholders). This report is complementary to D2.1 (Report on present observing capacities and gaps: ocean and sea ice observing systems), which includes an assessment of existing data collections based on an on-line survey (https://intaros.nersc.no/node/651).