Numerous measurements other than those within the core funding for the program are expected and welcomed for each cruise leg. Those measurements that are already under consideration are listed in the link "Core and Ancillary measurements". Many of the measurements do not yet have principal investigators or funding. Principal investigators who are planning proposals for such measurements should contact the committee co-chairmen prior to submission, so that integration with and potential impact on the cruise can be considered. Proposals that require additional shiptime for measurements outside the planned scope will likely be difficult to handle. The data policy addresses both the prioritization of measurements and the requirements for data release.

The committee co-chairmen are: