气候变化领域集成服务门户(CCPortal): Development and Verification of a Numerical Library for Solving Global Terrestrial Multiphysics Problems

CCPortal

DOI	10.1029/2018MS001560
	Development and Verification of a Numerical Library for Solving Global Terrestrial Multiphysics Problems
	Bisht G.; Riley W.J.
发表日期	2019
ISSN	19422466
起始页码	1516
结束页码	1542
卷号	11 期号:6
英文摘要	Current generation Land Surface Models (LSMs) routinely simulate many nonlinear multiphysics processes. The complexity of future generation LSMs is expected to increase as critical new biophysical and biogeochemical processes are incorporated. Current generation LSMs have several shortcomings including the lack of robust numerical methods to solve discretized equations, monolithic software design that hinders testing of a process representation in isolation from other components, and absence of a flexible coupling framework to solve tightly coupled multiphysics problems. While the LSMs community vigorously evaluates the accuracy of the conceptual model to represent reality (validation), the accuracy of the numerical implementation of the conceptual model (verification) is seldom examined. Method of Manufactured Solutions is a technique for verifying complex codes when analytical solutions are unavailable. In this work, we present a stand-alone, open source numerical library for solving global terrestrial multiphysics processes that includes a flexible coupling framework. Robust numerical solution for linear and nonlinear equations is provided via the Portable, Extensible Toolkit for Scientific Computation library. We verify the numerical library using Method of Manufactured Solutions for a range of problems comprising single and multiphysics steady state problems that are applied in one or multiple physical domains. This work provides an example of incorporating code verification as an integral part of Land Surface Model development activities. ©2019. The Authors.
英文关键词	Land surface model; Method of Manufactured Solutions; model verification; Multiphysics
语种	英语
scopus关键词	Flexible couplings; Nonlinear equations; Open source software; Software design; Software testing; Surface measurement; Biogeochemical process; Land surface modeling; Method of manufactured solutions; Model verification; Multi-physics; Numerical implementation; Process representation; Scientific computation; Numerical methods; accuracy assessment; complexity; model test; numerical method; numerical model; simulation; software
来源期刊	Journal of Advances in Modeling Earth Systems
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/156904
作者单位	Climate and Ecosystem Sciences Division, Lawrence Berkeley National Laboratory, Berkeley, CA, United States; Now at Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA, United States
推荐引用方式 GB/T 7714	Bisht G.,Riley W.J.. Development and Verification of a Numerical Library for Solving Global Terrestrial Multiphysics Problems[J],2019,11(6).
APA	Bisht G.,&Riley W.J..(2019).Development and Verification of a Numerical Library for Solving Global Terrestrial Multiphysics Problems.Journal of Advances in Modeling Earth Systems,11(6).
MLA	Bisht G.,et al."Development and Verification of a Numerical Library for Solving Global Terrestrial Multiphysics Problems".Journal of Advances in Modeling Earth Systems 11.6(2019).