Sampling and data sharing strategy

Shipboard and shore-based researchers should refer to the current Integrated Ocean Drilling Program Sample, Data, and Obligations policy posted on the Web at Any policy changes that may occur with the beginning of the International Ocean Discovery Program will be distributed to the Shipboard Scientific Party and shore-based collaborators as soon as possible. The document outlines the policy for distributing IODP samples and data to research scientists, curators, and educators. The document also defines the obligations that sample and data recipients incur. The Sample Allocation Committee (SAC; composed of co-chief scientists, staff scientist, and IODP curator on shore and curatorial representative on board the ship) will work with the entire scientific party to formulate a formal expedition-specific sampling plan for shipboard and postcruise sampling.

Shipboard scientists are expected to submit sample requests (at no later than 3 months before the beginning of the expedition. This timing is necessary to coordinate the research to be conducted and to ensure that the scientific objectives are achieved. Based on sample requests (shore-based and shipboard), the SAC will prepare a tentative sampling plan, which will be revised on the ship as dictated by recovery and cruise objectives. The sampling plan will be subject to modification depending upon the actual material recovered and collaborations that may evolve between scientists during the expedition. The SAC must approve modifications of the sampling strategy during the expedition.

All personal sample frequencies and sizes must be justified on a scientific basis and will depend on core recovery, the full spectrum of other sample requests, and the cruise objectives. Some redundancy of measurements is unavoidable, but minimizing the duplication of measurements among the shipboard party and identified shore-based collaborators will be a factor in evaluating sample requests. All shipboard scientists and approved shore-based requesters are expected to collaborate and cooperate within the framework of this plan. Sampling for individual scientist’s postexpedition research may be conducted during the expedition or may be deferred until after the expedition. This decision will be made during the expedition.

If critical intervals are recovered (e.g., ash layers, Cretaceous OAEs), there may be considerable demand for samples from a limited amount of cored material. These intervals may require modifications to the sampling plan (e.g., special handling, reduced sample size, or deferring of sampling to postexpedition), coordinated by the SAC before the critical intervals are sampled.

Following Expedition 351, cores will be delivered to the Integrated Ocean Drilling Program Kochi Core Center in Kochi, Japan. All collected data and samples will be protected by a 1 y postexpedition moratorium, during which time they will be available only to the Expedition 351 science party and approved shore-based participants. This moratorium will extend either 1 year from the end of the expedition or, if a postexpedition sampling party is deemed necessary, 1 y following the completion of the sampling party.