Emissions corridors preserving the Atlantic ocean thermohaline circulation
The Atlantic thermohaline circulation (THC) transports large amounts of heat northward, acting as a heatingsystem for the northern North Atlantic and north-western Europe. Paleo-reconstructions and a large numberof model simulations have shown the THC to be stable only within certain limits beyond w...
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ftbrighamyoung:oai:scholarsarchive.byu.edu:iemssconference-3808 2023-07-23T04:20:33+02:00 Emissions corridors preserving the Atlantic ocean thermohaline circulation Zickfeld, K. Bruckner, T. 2002-07-01T07:00:00Z application/pdf https://scholarsarchive.byu.edu/iemssconference/2002/all/193 https://scholarsarchive.byu.edu/context/iemssconference/article/3808/viewcontent/120_zickfeld.pdf unknown BYU ScholarsArchive https://scholarsarchive.byu.edu/iemssconference/2002/all/193 https://scholarsarchive.byu.edu/context/iemssconference/article/3808/viewcontent/120_zickfeld.pdf International Congress on Environmental Modelling and Software climate change tolerable windows approach emissions corridors sensitivity analysis text 2002 ftbrighamyoung 2023-07-03T22:36:51Z The Atlantic thermohaline circulation (THC) transports large amounts of heat northward, acting as a heatingsystem for the northern North Atlantic and north-western Europe. Paleo-reconstructions and a large numberof model simulations have shown the THC to be stable only within certain limits beyond which the circulationshuts down. In this paper we derive emission corridors for the 21st century preserving the Atlanticthermohaline circulation. To this end a multi-gas reduced-form climate model has been coupled to a dynamicfour-box model of the Atlantic thermohaline circulation. Both models allow for the relevant uncertainties (i.e.,climate and hydrological sensitivity) to be taken into account. The emission corridors are calculated along theconceptual and methodological lines of the tolerable windows approach. The corridor boundaries demarcatetime-dependent limits beyond which either the THC collapses or the mitigation burden to avoid such an eventbecomes intolerable. Accordingly, the corridors represent the maneuvering space for any climate policy committedto preserve the THC without endangering future economic growth. Results show a large dependence ofthe width of the emission corridors on hydrological sensitivity, which is a measure for the amount of additionalfreshwater entering the North Atlantic, and on climate sensitivity. Text North Atlantic Brigham Young University (BYU): ScholarsArchive The Corridor ENVELOPE(78.139,78.139,-68.582,-68.582) |
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climate change tolerable windows approach emissions corridors sensitivity analysis |
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climate change tolerable windows approach emissions corridors sensitivity analysis Zickfeld, K. Bruckner, T. Emissions corridors preserving the Atlantic ocean thermohaline circulation |
topic_facet |
climate change tolerable windows approach emissions corridors sensitivity analysis |
description |
The Atlantic thermohaline circulation (THC) transports large amounts of heat northward, acting as a heatingsystem for the northern North Atlantic and north-western Europe. Paleo-reconstructions and a large numberof model simulations have shown the THC to be stable only within certain limits beyond which the circulationshuts down. In this paper we derive emission corridors for the 21st century preserving the Atlanticthermohaline circulation. To this end a multi-gas reduced-form climate model has been coupled to a dynamicfour-box model of the Atlantic thermohaline circulation. Both models allow for the relevant uncertainties (i.e.,climate and hydrological sensitivity) to be taken into account. The emission corridors are calculated along theconceptual and methodological lines of the tolerable windows approach. The corridor boundaries demarcatetime-dependent limits beyond which either the THC collapses or the mitigation burden to avoid such an eventbecomes intolerable. Accordingly, the corridors represent the maneuvering space for any climate policy committedto preserve the THC without endangering future economic growth. Results show a large dependence ofthe width of the emission corridors on hydrological sensitivity, which is a measure for the amount of additionalfreshwater entering the North Atlantic, and on climate sensitivity. |
format |
Text |
author |
Zickfeld, K. Bruckner, T. |
author_facet |
Zickfeld, K. Bruckner, T. |
author_sort |
Zickfeld, K. |
title |
Emissions corridors preserving the Atlantic ocean thermohaline circulation |
title_short |
Emissions corridors preserving the Atlantic ocean thermohaline circulation |
title_full |
Emissions corridors preserving the Atlantic ocean thermohaline circulation |
title_fullStr |
Emissions corridors preserving the Atlantic ocean thermohaline circulation |
title_full_unstemmed |
Emissions corridors preserving the Atlantic ocean thermohaline circulation |
title_sort |
emissions corridors preserving the atlantic ocean thermohaline circulation |
publisher |
BYU ScholarsArchive |
publishDate |
2002 |
url |
https://scholarsarchive.byu.edu/iemssconference/2002/all/193 https://scholarsarchive.byu.edu/context/iemssconference/article/3808/viewcontent/120_zickfeld.pdf |
long_lat |
ENVELOPE(78.139,78.139,-68.582,-68.582) |
geographic |
The Corridor |
geographic_facet |
The Corridor |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
International Congress on Environmental Modelling and Software |
op_relation |
https://scholarsarchive.byu.edu/iemssconference/2002/all/193 https://scholarsarchive.byu.edu/context/iemssconference/article/3808/viewcontent/120_zickfeld.pdf |
_version_ |
1772185013334310912 |