The workshop program including presentation slides and abstracts are available on the CW2013 wiki (located at ). After hearing all talks, participants discussed common themes that emerged during the workshop and identified possible next steps. The three-day workshop included 31 talks in five major sessions: coupling technologies overviews and recent developments, experience reports, interoperability (I/O), benchmarking, and performance of new and emerging architectures. The goals of the workshop were to update participants on recent developments in coupling technologies, share experiences deploying existing coupling infrastructure into new contexts, discuss common challenges and goals, and identify possible avenues for community convergence via software interoperability, benchmarking, and sharing infrastructure. Coupling technologies are software packages designed to instantiate a system of interacting components by offering support for parallel data exchange, repartitioning of distributed data structures across processor sets, grid interpolation and remapping, control flow management, and other utilities. The Second Workshop on Coupling Technologies for Earth System Models (CW2013) continued the momentum of the first workshop held two years prior ( Valcke and Dunlap 2011a, b) by bringing together researchers and practitioners from over 20 institutions across the globe.

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