A COMMUNITY MODEL FOR WATER IN THE CONTINENTAL EARTH SYSTEM

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The summary of the document is as follows:

Mathematical models are important tools to understand water in the continental Earth system, but none of the currently available models are adequately complete to tackle the diverse set of critical science questions facing society today. The large number of available models has limited collaborative development within the water sciences and limited interaction with sister disciplines, like the atmospheric and ocean sciences. This document outlines a plan to create a Community Water Model, which will be designed to provide the best available simulations of the hydrologic cycle and coupled water processes within the contiguous United States and adjacent watersheds. This will be accomplished by developing a modeling platform patterned after current multiphysics modeling software that has been optimized to solve problems related to water. The platform will provide the computational resources and access to data required to create a Community Water Model. The CWM will enable multiple workflow configurations to meet the wide range of objectives for which hydrologic models are constructed. It will be an open source code managed by the scientific community and it will grow in capabilities through contributions from the community. The Community Water Model can serve as the connection point for other disciplines that require prediction of continental water movement including general circulation, landform evolution, biogeochemical, vegetation, ecological and economic models.