determine (1) the entity responsible for coordinating and facilitating this exchange and (2) the approach to ensure its sustained support.

Although the report suggests specific advancement strategies related to the models used to formulate seasonal and decadal sea ice prediction, the same level of specificity is not provided for observations (e.g., types and locations or frequencies of observations). Rather, it is the committee’s view that systematically identifying obstacles that prevent models from producing more accurate sea ice predictions at seasonal to decadal timescales will aid in (1) directing and prioritizing process studies, (2) designing observing networks, and (3) focusing model development. This perspective takes into account that the modeling infrastructure has advanced sufficiently to support a series of sensitivity studies designed to strategically inform research investments related to key observational needs. In addition, the committee has identified steps that will advance the modeling capabilities that are essential to sea ice prediction over seasonal to decadal timescales. These steps involve sustained interactions with the observational and user communities, reinforcing the importance of integration across the three communities. The extent to which such integration can be achieved will likely determine the rate at which sea ice prediction capabilities advance.

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