Tuning the climate of a global model
During a development stage global climate models have their properties adjusted or tuned in various ways to best match the known state of the Earth's climate system. These desired properties are observables, such as the radiation balance at the top of the atmosphere, the global mean temperature...
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American Geophysical Union (AGU)
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ftdoajarticles:oai:doaj.org/article:513bce38a9b44aec9c14eb74bb0075ac 2023-05-15T18:18:23+02:00 Tuning the climate of a global model Thorsten Mauritsen, Bjorn Stevens, Erich Roeckner, Traute Crueger, Monika Esch, Marco Giorgetta, Helmuth Haak, Johann Jungclaus, Daniel Klocke, Daniela Matei, Uwe Mikolajewicz, and Robert Pincus Hauke Schmidt, and Lorenzo Tomassini 2012-08-01T00:00:00Z https://doaj.org/article/513bce38a9b44aec9c14eb74bb0075ac EN eng American Geophysical Union (AGU) http://www.agu.org/journals/ms/ms1208/2012MS000154/ https://doaj.org/toc/1942-2466 1942-2466 https://doaj.org/article/513bce38a9b44aec9c14eb74bb0075ac Journal of Advances in Modeling Earth Systems, Vol 4, Iss 8, Pp M00A01-18 (2012) climate development models tuning Physical geography GB3-5030 Oceanography GC1-1581 article 2012 ftdoajarticles 2022-12-31T00:07:53Z During a development stage global climate models have their properties adjusted or tuned in various ways to best match the known state of the Earth's climate system. These desired properties are observables, such as the radiation balance at the top of the atmosphere, the global mean temperature, sea ice, clouds and wind fields. The tuning is typically performed by adjusting uncertain, or even non-observable, parameters related to processes not explicitly represented at the model grid resolution. The practice of climate model tuning has seen an increasing level of attention because key model properties, such as climate sensitivity, have been shown to depend on frequently used tuning parameters. Here we provide insights into how climate model tuning is practically done in the case of closing the radiation balance and adjusting the global mean temperature for the Max Planck Institute Earth System Model (MPI-ESM). We demonstrate that considerable ambiguity exists in the choice of parameters, and present and compare three alternatively tuned, yet plausible configurations of the climate model. The impacts of parameter tuning on climate sensitivity was less than anticipated. Article in Journal/Newspaper Sea ice Directory of Open Access Journals: DOAJ Articles |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
climate development models tuning Physical geography GB3-5030 Oceanography GC1-1581 |
spellingShingle |
climate development models tuning Physical geography GB3-5030 Oceanography GC1-1581 Thorsten Mauritsen, Bjorn Stevens, Erich Roeckner, Traute Crueger, Monika Esch, Marco Giorgetta, Helmuth Haak, Johann Jungclaus, Daniel Klocke, Daniela Matei, Uwe Mikolajewicz, and Robert Pincus Hauke Schmidt, and Lorenzo Tomassini Tuning the climate of a global model |
topic_facet |
climate development models tuning Physical geography GB3-5030 Oceanography GC1-1581 |
description |
During a development stage global climate models have their properties adjusted or tuned in various ways to best match the known state of the Earth's climate system. These desired properties are observables, such as the radiation balance at the top of the atmosphere, the global mean temperature, sea ice, clouds and wind fields. The tuning is typically performed by adjusting uncertain, or even non-observable, parameters related to processes not explicitly represented at the model grid resolution. The practice of climate model tuning has seen an increasing level of attention because key model properties, such as climate sensitivity, have been shown to depend on frequently used tuning parameters. Here we provide insights into how climate model tuning is practically done in the case of closing the radiation balance and adjusting the global mean temperature for the Max Planck Institute Earth System Model (MPI-ESM). We demonstrate that considerable ambiguity exists in the choice of parameters, and present and compare three alternatively tuned, yet plausible configurations of the climate model. The impacts of parameter tuning on climate sensitivity was less than anticipated. |
format |
Article in Journal/Newspaper |
author |
Thorsten Mauritsen, Bjorn Stevens, Erich Roeckner, Traute Crueger, Monika Esch, Marco Giorgetta, Helmuth Haak, Johann Jungclaus, Daniel Klocke, Daniela Matei, Uwe Mikolajewicz, and Robert Pincus Hauke Schmidt, and Lorenzo Tomassini |
author_facet |
Thorsten Mauritsen, Bjorn Stevens, Erich Roeckner, Traute Crueger, Monika Esch, Marco Giorgetta, Helmuth Haak, Johann Jungclaus, Daniel Klocke, Daniela Matei, Uwe Mikolajewicz, and Robert Pincus Hauke Schmidt, and Lorenzo Tomassini |
author_sort |
Thorsten Mauritsen, Bjorn Stevens, Erich Roeckner, Traute Crueger, Monika Esch, Marco Giorgetta, Helmuth Haak, Johann Jungclaus, Daniel Klocke, Daniela Matei, Uwe Mikolajewicz, and Robert Pincus |
title |
Tuning the climate of a global model |
title_short |
Tuning the climate of a global model |
title_full |
Tuning the climate of a global model |
title_fullStr |
Tuning the climate of a global model |
title_full_unstemmed |
Tuning the climate of a global model |
title_sort |
tuning the climate of a global model |
publisher |
American Geophysical Union (AGU) |
publishDate |
2012 |
url |
https://doaj.org/article/513bce38a9b44aec9c14eb74bb0075ac |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Journal of Advances in Modeling Earth Systems, Vol 4, Iss 8, Pp M00A01-18 (2012) |
op_relation |
http://www.agu.org/journals/ms/ms1208/2012MS000154/ https://doaj.org/toc/1942-2466 1942-2466 https://doaj.org/article/513bce38a9b44aec9c14eb74bb0075ac |
_version_ |
1766194949041160192 |