'Climate Response Functions' for the Arctic Ocean: a proposedcoordinated modeling 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 c...
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| Format: | Article |
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Copernicus GmbH
2018
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| Online Access: | http://hdl.handle.net/1721.1/115217 https://orcid.org/0000-0001-9230-3591 |
| _version_ | 1811072199275053056 |
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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 | 2024-09-23T09:02:06Z |
| format | Article |
| id | mit-1721.1/115217 |
| institution | Massachusetts Institute of Technology |
| last_indexed | 2024-09-23T09:02:06Z |
| publishDate | 2018 |
| publisher | Copernicus GmbH |
| record_format | dspace |
| spelling | mit-1721.1/1152172024-05-15T02:22:51Z 'Climate Response Functions' for the Arctic Ocean: a proposedcoordinated modeling 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) 2018-05-03T17:58:23Z 2018-05-03T17:58:23Z 2017-07 2017-06 2018-04-27T13:43:52Z Article http://purl.org/eprint/type/JournalArticle 1991-962X http://hdl.handle.net/1721.1/115217 Marshall, John et al. “‘Climate Response Functions’ for the Arctic Ocean: a Proposed Coordinated Modeling Experiment.” Geoscientific Model Development Discussions 10 (January 2017): 2833-2848 © 2017 Author(s) https://orcid.org/0000-0001-9230-3591 http://dx.doi.org/10.5194/GMD-2016-316 Geoscientific Model Development Discussions Creative Commons Attribution 3.0 Unported license http://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 proposedcoordinated modeling experiment |
| title | 'Climate Response Functions' for the Arctic Ocean: a proposedcoordinated modeling experiment |
| title_full | 'Climate Response Functions' for the Arctic Ocean: a proposedcoordinated modeling experiment |
| title_fullStr | 'Climate Response Functions' for the Arctic Ocean: a proposedcoordinated modeling experiment |
| title_full_unstemmed | 'Climate Response Functions' for the Arctic Ocean: a proposedcoordinated modeling experiment |
| title_short | 'Climate Response Functions' for the Arctic Ocean: a proposedcoordinated modeling experiment |
| title_sort | climate response functions for the arctic ocean a proposedcoordinated modeling experiment |
| url | http://hdl.handle.net/1721.1/115217 https://orcid.org/0000-0001-9230-3591 |
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