10.21429/C9CW4RDavid HelwegVictoria KeenerApplications of Climate Downscaling in the Main Hawaiian Islands: Balancing Climate Modelers’ Products and Impact Modelers’ ExpectationsNCCWSC/CSC2017OtherHigh-resolution projections of future terrestrial climate conditions for the high Hawaiian islands (Hawaiʻi Island, Maui Nui, Oʻahu, and Kauaʻi) have been developed using statistical and dynamical downscaling methods. A “Workshop on Climate Downscaling and its Application in the High Hawaiian Islands” (https://pubs.er.usgs.gov/publication/ofr20161102) was held in 2015 to address questions from natural resource managers about how to integrate climate-related projections into their resource management decisions. Since the 2015 workshop, additional climate modeling has been done. New projections for the same places using familiar modeling techniques remained dissimilar, and a completely new modeling effort appears to be producing results unlike either of the two familiar methods. This report summarizes a second workshop, convened in April 2017 by the Pacific Islands Climate Science Center and Pacific RISA. The 2017 workshop focused on discussion of climate modelers’ products and resource climate impact modelers’ expectations. The climate impact modelers are the initial users of downscaled climate projections, and are the active transformers and translators of that information in the pathway between applications of climate prediction science by natural resource managers. The workshop brought together climate modelers and impact modelers working on Hawaiian climate systems, as well as colleagues working on similar issues in Alaska and the Caribbean. In addition to continued support to the climate adaptation community of practice in Hawai‘i, outcomes described in this report include development of modeling narratives for nontechnical audiences, technical guidance for modeling future climate and its impacts, as well as areas for future research.