The National Academies' Board on Atmospheric Sciences and Climate (BASC) held a workshop to explore and evaluate current efforts to model physical processes of coupled atmosphere-land-ocean (A-L-O) models. Numerical models of the atmosphere and ocean are central to weather prediction, research, and education. Although great strides have been made over the past few decades in understanding the atmosphere and ocean, modeling capabilities, and numerical A-L-O simulations, some unresolved processes in the models do not adequately represent knowledge of the underlying physics. Moreover, there is evidence that further progress in numerical simulations is being impeded by the slow pace of improvement in the representation of key physical processes in the models and the fact that geophysical flow models are not receiving the attention needed to make these tools more useful and accurate. These models often are used to predict future events, so it is imperative that their underlying physical processes be represented as robustly as possible. During the workshop, the parameterization of physical processes in A-L-O models was addressed, including associated errors, testing, and efforts to improve the use of parameterizations. Participants also examined intellectual and scientific challenges in modeling and highlighted the idea that some of the key impediments to progress in representing physical processes are primarily cultural in nature.
Table of Contents
|1 Workshop Context||3-7|
|2 Development and Testing of Model Parameterizations: Some Examples||8-11|
|3 The Framework for Developing Parameterizations||12-18|
|4 Impediments to and Ideas for Progress in Model Development||19-27|
|5 Concluding Thoughts forecasts.||28-30|
|Appendix A Statement of Task||33-33|
|Appendix B Input from Workshop Invitees||34-55|
|Appendix C The Gap Between Simulation and Understanding in Climate Modeling||56-62|
|Appendix D Workshop Agenda||63-65|
|Appendix E Workshop Participants||66-67|
|Appendix F Abbreviations and Acronyms||68-69|
|Appendix G Committee and Staff Biographies||70-72|
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