Changes in extremely hot days under stabilized 1.5 °C and 2.0 °C global warming scenarios as simulated by the HAPPI multi-model ensemble
Abstract. The Half A degree additional warming, Prognosis and Projected Impacts (HAPPI) experimental protocol provides a multi-model database to compare the effects of stabilizing anthropogenic global warming of 1.5 °C over preindustrial levels to 2.0 °C over these levels. The HAPPI experiment is ba...
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ftcdlib:oai:escholarship.org/ark:/13030/qt1898974d 2023-05-15T18:18:22+02:00 Changes in extremely hot days under stabilized 1.5 °C and 2.0 °C global warming scenarios as simulated by the HAPPI multi-model ensemble Wehner, Michael Stone, Dáithí Mitchell, Dann Shiogama, Hideo Fischer, Erich Graff, Lise S Kharin, Viatcheslav V Lierhammer, Ludwig Sanderson, Benjamin Krishnan, Harinarayan 2017-10-25 https://escholarship.org/uc/item/1898974d unknown eScholarship, University of California qt1898974d https://escholarship.org/uc/item/1898974d public Atmospheric Sciences Oceanography Physical Geography and Environmental Geoscience article 2017 ftcdlib 2021-07-05T17:07:46Z Abstract. The Half A degree additional warming, Prognosis and Projected Impacts (HAPPI) experimental protocol provides a multi-model database to compare the effects of stabilizing anthropogenic global warming of 1.5 °C over preindustrial levels to 2.0 °C over these levels. The HAPPI experiment is based upon large ensembles of global atmospheric models forced by sea surface temperature and sea ice concentrations plausible for these stabilization levels. This paper examines changes in extremes of high temperatures averaged over three consecutive days. Changes in this measure of extreme temperature are also compared to changes in hot season temperatures. We find that the differences between the two stabilization scenarios in extreme high temperatures over land ranges from about 0.25 to 1.0 °C depending on location and model. Results from the HAPPI models are consistent with similar results from the one available fully coupled climate model. However, a complicating factor in interpreting extreme temperature changes across the HAPPI models is their diversity of aerosol forcing changes. Article in Journal/Newspaper Sea ice University of California: eScholarship |
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Open Polar |
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University of California: eScholarship |
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unknown |
topic |
Atmospheric Sciences Oceanography Physical Geography and Environmental Geoscience |
spellingShingle |
Atmospheric Sciences Oceanography Physical Geography and Environmental Geoscience Wehner, Michael Stone, Dáithí Mitchell, Dann Shiogama, Hideo Fischer, Erich Graff, Lise S Kharin, Viatcheslav V Lierhammer, Ludwig Sanderson, Benjamin Krishnan, Harinarayan Changes in extremely hot days under stabilized 1.5 °C and 2.0 °C global warming scenarios as simulated by the HAPPI multi-model ensemble |
topic_facet |
Atmospheric Sciences Oceanography Physical Geography and Environmental Geoscience |
description |
Abstract. The Half A degree additional warming, Prognosis and Projected Impacts (HAPPI) experimental protocol provides a multi-model database to compare the effects of stabilizing anthropogenic global warming of 1.5 °C over preindustrial levels to 2.0 °C over these levels. The HAPPI experiment is based upon large ensembles of global atmospheric models forced by sea surface temperature and sea ice concentrations plausible for these stabilization levels. This paper examines changes in extremes of high temperatures averaged over three consecutive days. Changes in this measure of extreme temperature are also compared to changes in hot season temperatures. We find that the differences between the two stabilization scenarios in extreme high temperatures over land ranges from about 0.25 to 1.0 °C depending on location and model. Results from the HAPPI models are consistent with similar results from the one available fully coupled climate model. However, a complicating factor in interpreting extreme temperature changes across the HAPPI models is their diversity of aerosol forcing changes. |
format |
Article in Journal/Newspaper |
author |
Wehner, Michael Stone, Dáithí Mitchell, Dann Shiogama, Hideo Fischer, Erich Graff, Lise S Kharin, Viatcheslav V Lierhammer, Ludwig Sanderson, Benjamin Krishnan, Harinarayan |
author_facet |
Wehner, Michael Stone, Dáithí Mitchell, Dann Shiogama, Hideo Fischer, Erich Graff, Lise S Kharin, Viatcheslav V Lierhammer, Ludwig Sanderson, Benjamin Krishnan, Harinarayan |
author_sort |
Wehner, Michael |
title |
Changes in extremely hot days under stabilized 1.5 °C and 2.0 °C global warming scenarios as simulated by the HAPPI multi-model ensemble |
title_short |
Changes in extremely hot days under stabilized 1.5 °C and 2.0 °C global warming scenarios as simulated by the HAPPI multi-model ensemble |
title_full |
Changes in extremely hot days under stabilized 1.5 °C and 2.0 °C global warming scenarios as simulated by the HAPPI multi-model ensemble |
title_fullStr |
Changes in extremely hot days under stabilized 1.5 °C and 2.0 °C global warming scenarios as simulated by the HAPPI multi-model ensemble |
title_full_unstemmed |
Changes in extremely hot days under stabilized 1.5 °C and 2.0 °C global warming scenarios as simulated by the HAPPI multi-model ensemble |
title_sort |
changes in extremely hot days under stabilized 1.5 °c and 2.0 °c global warming scenarios as simulated by the happi multi-model ensemble |
publisher |
eScholarship, University of California |
publishDate |
2017 |
url |
https://escholarship.org/uc/item/1898974d |
genre |
Sea ice |
genre_facet |
Sea ice |
op_relation |
qt1898974d https://escholarship.org/uc/item/1898974d |
op_rights |
public |
_version_ |
1766194921930227712 |