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Applying Automatic Differentiation to the Community Land Model-
incollection
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Author(s)
Azamat Mametjanov
, Boyana Norris
, Xiaoyan Zeng
, Beth Drewniak
, Jean Utke
, Mihai Anitescu
, Paul Hovland
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Published in Recent Advances in Algorithmic Differentiation
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Editor(s) Shaun Forth, Paul Hovland, Eric Phipps, Jean Utke, Andrea Walther |
Year 2012 |
Publisher Springer |
Abstract Earth system models rely on past observations and knowledge to simulate future climate states. Because of the inherent complexity, a substantial uncertainty exists in model-based predictions. Evaluation and improvement of model codes are one of the priorities of climate science research. Automatic Differentiation enables analysis of sensitivities of predicted outcomes to input parameters by calculating derivatives of modeled functions. The resulting sensitivity knowledge can lead to improved parameter calibration. We present our experiences in applying OpenAD to the Fortran-based crop model code in the Community Land Model (CLM). We identify several issues that need to be addressed in future developments of tangent-linear and adjoint versions of the CLM. |
Cross-References Forth2012RAi |
AD Tools OpenAD |
BibTeX
@INCOLLECTION{
Mametjanov2012AAD,
title = "Applying Automatic Differentiation to the Community Land Model",
doi = "10.1007/978-3-642-30023-3_5",
author = "Azamat Mametjanov and Boyana Norris and Xiaoyan Zeng and Beth Drewniak and Jean Utke
and Mihai Anitescu and Paul Hovland",
abstract = "Earth system models rely on past observations and knowledge to simulate future
climate states. Because of the inherent complexity, a substantial uncertainty exists in model-based
predictions. Evaluation and improvement of model codes are one of the priorities of climate science
research. Automatic Differentiation enables analysis of sensitivities of predicted outcomes to input
parameters by calculating derivatives of modeled functions. The resulting sensitivity knowledge can
lead to improved parameter calibration. We present our experiences in applying OpenAD to the
Fortran-based crop model code in the Community Land Model (CLM). We identify several issues that
need to be addressed in future developments of tangent-linear and adjoint versions of the CLM.",
pages = "47--57",
crossref = "Forth2012RAi",
booktitle = "Recent Advances in Algorithmic Differentiation",
series = "Lecture Notes in Computational Science and Engineering",
publisher = "Springer",
address = "Berlin",
volume = "87",
editor = "Shaun Forth and Paul Hovland and Eric Phipps and Jean Utke and Andrea Walther",
isbn = "978-3-540-68935-5",
issn = "1439-7358",
year = "2012",
ad_tools = "OpenAD"
}
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