“Climate response functions” for the Arctic Ocean: a proposed coordinated modelling experiment
A coordinated set of Arctic modelling experiments, which explore how the Arctic responds to changes in external forcing, is proposed. Our goal is to compute and compare “climate response functions” (CRFs) – the transient response of key observable indicators such as sea-ice extent, freshwater conten...
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| Format: | Article |
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Copernicus GmbH
2018
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| Online Access: | http://hdl.handle.net/1721.1/113897 https://orcid.org/0000-0001-9230-3591 |
| _version_ | 1811081068854378496 |
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| author | Proshutinsky, Andrey Marshall, John C Scott, Jeremy |
| author2 | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences |
| author_facet | Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Proshutinsky, Andrey Marshall, John C Scott, Jeremy |
| author_sort | Proshutinsky, Andrey |
| collection | MIT |
| description | A coordinated set of Arctic modelling experiments, which explore how the Arctic responds to changes in external forcing, is proposed. Our goal is to compute and compare “climate response functions” (CRFs) – the transient response of key observable indicators such as sea-ice extent, freshwater content of the Beaufort Gyre, etc. – to abrupt “step” changes in forcing fields across a number of Arctic models. Changes in wind, freshwater sources, and inflows to the Arctic basin are considered. Convolutions of known or postulated time series of these forcing fields with their respective CRFs then yield the (linear) response of these observables. This allows the project to inform, and interface directly with, Arctic observations and observers and the climate change community. Here we outline the rationale behind such experiments and illustrate our approach in the context of a coarse-resolution model of the Arctic based on the MITgcm. We conclude by summarizing the expected benefits of such an activity and encourage other modelling groups to compute CRFs with their own models so that we might begin to document their robustness to model formulation, resolution, and parameterization. |
| first_indexed | 2024-09-23T11:41:10Z |
| format | Article |
| id | mit-1721.1/113897 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T11:41:10Z |
| publishDate | 2018 |
| publisher | Copernicus GmbH |
| record_format | dspace |
| spelling | mit-1721.1/1138972024-05-15T08:59:15Z “Climate response functions” for the Arctic Ocean: a proposed coordinated modelling experiment Proshutinsky, Andrey Marshall, John C Scott, Jeremy Massachusetts Institute of Technology. Department of Earth, Atmospheric, and Planetary Sciences Marshall, John C Scott, Jeffery R A coordinated set of Arctic modelling experiments, which explore how the Arctic responds to changes in external forcing, is proposed. Our goal is to compute and compare “climate response functions” (CRFs) – the transient response of key observable indicators such as sea-ice extent, freshwater content of the Beaufort Gyre, etc. – to abrupt “step” changes in forcing fields across a number of Arctic models. Changes in wind, freshwater sources, and inflows to the Arctic basin are considered. Convolutions of known or postulated time series of these forcing fields with their respective CRFs then yield the (linear) response of these observables. This allows the project to inform, and interface directly with, Arctic observations and observers and the climate change community. Here we outline the rationale behind such experiments and illustrate our approach in the context of a coarse-resolution model of the Arctic based on the MITgcm. We conclude by summarizing the expected benefits of such an activity and encourage other modelling groups to compute CRFs with their own models so that we might begin to document their robustness to model formulation, resolution, and parameterization. National Science Foundation (U.S.) (Award 1603557) 2018-02-27T18:04:39Z 2018-02-27T18:04:39Z 2017-07 2017-06 2018-02-23T13:59:47Z Article http://purl.org/eprint/type/JournalArticle 1991-9603 1991-959X http://hdl.handle.net/1721.1/113897 Marshall, John et al. “‘Climate Response Functions’ for the Arctic Ocean: a Proposed Coordinated Modelling Experiment.” Geoscientific Model Development 10, 7 (July 2017): 2833–2848 © 2017 Copernicus GmbH https://orcid.org/0000-0001-9230-3591 http://dx.doi.org/10.5194/GMD-10-2833-2017 Geoscientific Model Development Attribution 3.0 Unported (CC BY 3.0) https://creativecommons.org/licenses/by/3.0/ application/pdf Copernicus GmbH Copernicus Publications |
| spellingShingle | Proshutinsky, Andrey Marshall, John C Scott, Jeremy “Climate response functions” for the Arctic Ocean: a proposed coordinated modelling experiment |
| title | “Climate response functions” for the Arctic Ocean: a proposed coordinated modelling experiment |
| title_full | “Climate response functions” for the Arctic Ocean: a proposed coordinated modelling experiment |
| title_fullStr | “Climate response functions” for the Arctic Ocean: a proposed coordinated modelling experiment |
| title_full_unstemmed | “Climate response functions” for the Arctic Ocean: a proposed coordinated modelling experiment |
| title_short | “Climate response functions” for the Arctic Ocean: a proposed coordinated modelling experiment |
| title_sort | climate response functions for the arctic ocean a proposed coordinated modelling experiment |
| url | http://hdl.handle.net/1721.1/113897 https://orcid.org/0000-0001-9230-3591 |
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