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Research ChallengesSFA Research Summaries

Several crosscutting themes encourage fertilization across the SFA. Complexity, scale transitions, and multidiciplinary are scientific themes that cross-cut the Sustainable Systems SFA Challenges. Recognition of subsurface system complexity (with inherent emergent processes and feedbacks) is common to all of the SFA challenges. Each Challenge uses a hybrid approach whereby fundamental whereby fundamental processes and their interactions are explored and diagnostic  (or integrative often microscopic ) signatures of system responses are identified. Scale transitions are considered in each Challenge: the Unraveling Challenge explores processes from the molecular (<10-6) to the local field scale (10-2-10 m); the Evolution Challenge from the pore to the field scale; and the Plume Challenge from the pore to the plume (>100 m) scale. Each Challenge is multidisciplinary in nature and takes advantage of integrated and recognized LBNL expertise.

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