Data Access

Data from IODP expeditions can be accessed via the expedition's Science Operator:  

Sample Access

Physical samples are archived at three repositories. Sample requests for all DSDP, ODP, and IODP cores are submitted using the Sample and Data Requests Database (SaDR). By receiving samples, researchers implicitly agree to comply with the IODP Sample, Data, and Obligations Policy. A Curatorial Advisory Board makes final decisisons regarding distribution of IODP samples.


The integrated data and publications portal Scientific Earth Drilling Information System (SEDIS) initiated during the Integrated Ocean Drilling Program 2003-2013 continues into the International Ocean Discovery Program and is now funded by ECORD and supported by MARUM. SEDIS allows search across source databases and aggregation of data sets from:

  • Post-moratorium data and metadata from all IODP and legacy program data systems (e.g., JANUS, LIMS, J-CORES, WDC-MARE/PANGAEA, Logging Database SSDB, etc.)
  • Publications and publications metadata from IODP/ODP/DSDP and the open literature related to scientific ocean drilling
  • Post-expedition data and metadata from post-cruise data capture projects and voluntarily submitted post-expedition data sets 

Site Survey Data Bank

The Site Survey Data Bank (SSDB) is a repository for digital site survey data submitted in support of IODP proposals, expeditions and related activities. Many files are freely available, but proprietary holds requested by proponents are strictly maintained. The SSDB also contains older site survey data for some ODP proposals and legs. Analog site survey data (e.g., paper plots) submitted in support of IODP, ODP and DSDP proposals and expeditions/legs are stored on site at the SSDB.

Micropaleontological Reference Centers

Maintained by curators at over a dozen sites around the world, the Micropaleontological Reference Centers (MRCs) provide scientists with an opportunity to examine microfossils of various geologic ages and from a globally distributed set of locations. The collections, with more than 20,000 samples, cover four microfossil groups—calcareous nannofossils, foraminifers, radiolarians, and diatoms—selected from sediment cores obtained from the scientific ocean drilling programs. The MRCs are a source of materials for current research and a legacy archive.

Microbiology Sample Material Availability

Subseafloor microbiological samples from some IODP expeditions are available for request.

  • List of samples at Bremen Core Repository
  • List of samples at Gulf Coast Repository
  • List of samples at Kochi Core Center