GEOTRACES Intermediate Data Product 2017

The GEOTRACES Intermediate Data Product (IDP2017) was made available on 16 August 2017. This new data product gathers the data acquired during the first 6 years of the programme and builds on the product released in 2014. It expands on the collection of results from the Atlantic and Arctic Oceans and adds new data from the Pacific and Southern Oceans.

The GEOTRACES IDP2017 consists of two parts:

  1. the digital datasets — available for download below or as a subset via the online service hosted by the Alfred Wegener Institute (AWI). The digital datasets contain hydrographic and biogeochemical data for about 2000 stations from more than 40 cruises and cover the global ocean, with data density being the highest in the Atlantic.
  2. the eGEOTRACES Electronic Atlas — is based on the digital data package and provides section plots (as illustrated below) and animated 3D scenes for many of the parameters. The 3D scenes provide geographical context, which is crucial for correctly assessing extent and origin of tracer plumes as well as for inferring processes acting on the tracers and shaping their distribution.
Full-depth distribution of thorium-230 (Th) along a GEOTRACES section between Peru and Tahiti.
Full-depth distribution of thorium-230 (Th) along a GEOTRACES section between Peru and Tahiti. Enlarge image

© 2017 Reiner Schlitzer, Alfred Wegener Institute (AWI), Bremerhaven, Germany.

Full-depth distribution of cadmium (Cd) along a GEOTRACES section between Peru and Tahiti.
Full-depth distribution of cadmium (Cd) along a GEOTRACES section between Peru and Tahiti. Enlarge image

© 2017 Reiner Schlitzer, Alfred Wegener Institute (AWI), Bremerhaven, Germany.

Full-depth distribution of iron (Fe) along a GEOTRACES section between Peru and Tahiti.
Full-depth distribution of iron (Fe) along a GEOTRACES section between Peru and Tahiti. Enlarge image

© 2017 Reiner Schlitzer, Alfred Wegener Institute (AWI), Bremerhaven, Germany.

IDP2017 digital datasets

The IDP2017 digital datasets are made available to download by the GEOTRACES International Data Assembly Centre hosted by the British Oceanographic Data Centre (BODC). They are provided in 4 data formats: ASCII, Microsoft Excel, NetCDF and ODV collections. The latter is for use with the Ocean Data View software.

To access these datasets you will be required to register as a BODC web user and agree to the terms and conditions of the GEOTRACES IDP2017 download agreement. This includes a requirement that you commit to proper citations of the product itself and of the relevant original papers associated with the particular data used. Until the IDP2017 paper is published, please cite the IDP2014 paper as specified in the download agreement.

CTD Sensor Data

Discrete Sample Data

Aerosol and Rain Data

More information is provided on the IDP2017 brochure. Please help us to improve the Intermediate Data Product by sending us your feedback.