Sampling and data sharing strategy

Shipboard and shore-based researchers should refer to the current Integrated Ocean Drilling Program Sample, Data, and Obligations policy ( Any policy changes that may occur with the beginning of the International Ocean Discovery Program will be distributed to the Shipboard Scientific Party and interested shore-based scientists as soon as possible. This policy describes the review and approval procedure for receiving samples and data, as well as the publication obligations incurred by sample and data recipients. All requests for samples and data must be approved by the Sample Allocation Committee (SAC), which is composed of the Co-Chief Scientists, Expedition Project Manager, and USIO curator onshore and curatorial representative onboard the ship.

Scientists must submit research plans using the Sample and Data Request Database ( ~3 months before the beginning of the expedition. The preexpedition planning process is necessary to coordinate the research to be conducted and to ensure that the expedition scientific objectives are achieved. Based on sample requests (shore based and shipboard) submitted by this deadline, the SAC will prepare a tentative sampling and data-sharing plan for shipboard and postexpedition activities, which will be revised on the ship as dictated by recovery and expedition 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 to the sampling plan during the expedition.

All sample frequencies and sizes must be justified scientifically and will depend on core recovery, the full spectrum of other requests, and the expedition objectives. Some redundancy of measurement 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 are expected to collaborate and cooperate within the framework of this plan.

The planned operations for this expedition minimize duplicate coring in order to maximize time to reach the highest priority deep drilling objectives, so each site is likely to have only one copy of the lithologic section for core description and sampling. The minimum permanent archive will be the standard archive half of each core. If some critical intervals are recovered (e.g., prominent unconformities, sediment/basement contacts), 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 sampling until after the expedition is completed). Although shipboard sampling for materials with ephemeral properties (e.g., whole rounds for pore water and microbiological samples) is a priority, these may be limited or shifted away from critical boundaries.

Sampling for individual scientist′s postexpedition research may be conducted during the expedition or may be deferred until postexpedition based on core recovery, available time, and the scope of samples requested. Following Expedition 349, cores will be delivered to the Integrated Ocean Drilling Program Kochi Core Center (KCC) in Kochi, Japan. All collected expedition cores and data will be protected by a 1 y postexpedition moratorium, during which time data and samples will be available only to the Expedition 349 science party and approved shore-based participants. This moratorium will extend either 1 y from the end of the expedition or 1 y from the completion of a postexpedition sampling party at KCC if most samples are taken at that time.