GEOTRACES International Data Assembly Centre (GDAC) – access to intermediate data products, data management policy and submission; cruise data inventories and historical data sets collected outside GEOTRACES. Full-depth distribution of thorium-230 (Th) along a GEOTRACES section between Peru and Tahiti. © 2017 Reiner Schlitzer, Alfred Wegener Institute (AWI), Bremerhaven, Germany. GEOTRACES Intermediate Data Product 2017 (IDP2017) – Version 2; access to digital datasets and to the eGEOTRACES Electronic Atlas. Click on image to view IDP2021 Brochure (PDF) GEOTRACES Intermediate Data Product 2021 (IDP2021) – was released in November 2021! It includes hydrographic and marine geochemical data from 77 cruises expanding the previous collection released in 2017. The product consists of two parts: a digital data package and an eGEOTRACES Atlas. The webODV tool allows analysis, exploration and visualization of the data. IDP2021 – webinar launch videos available here.