Hysteresis of European summer precipitation under a symmetric CO 2 ramp-up and ramp-down pathway
Abstract This study investigates the mechanism of the hysteresis of European summer mean precipitation in a CO 2 removal (CDR) simulation. The European summer mean precipitation exhibits robust hysteresis in response to the CO 2 forcing; after decreasing substantially (∼40%) during the ramp-up perio...
Published in: | Environmental Research Letters |
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Online Access: | http://dx.doi.org/10.1088/1748-9326/ad52ad https://iopscience.iop.org/article/10.1088/1748-9326/ad52ad https://iopscience.iop.org/article/10.1088/1748-9326/ad52ad/pdf |
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crioppubl:10.1088/1748-9326/ad52ad 2024-09-15T18:23:16+00:00 Hysteresis of European summer precipitation under a symmetric CO 2 ramp-up and ramp-down pathway Im, Nari Kim, Daehyun An, Soon-Il Paik, Seungmok Kim, Soong-Ki Shin, Jongsoo Min, Seung-Ki Kug, Jong-Seong Oh, Hyoeun Korea Research Environment Open NETwork the National Center for Meteorological Supercomputer of the Korea Meteorological Administration (KMA), the National Supercomputing Center Korean Government National Research Foundation of Korea Seoul National University 2024 http://dx.doi.org/10.1088/1748-9326/ad52ad https://iopscience.iop.org/article/10.1088/1748-9326/ad52ad https://iopscience.iop.org/article/10.1088/1748-9326/ad52ad/pdf unknown IOP Publishing http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining Environmental Research Letters volume 19, issue 7, page 074030 ISSN 1748-9326 journal-article 2024 crioppubl https://doi.org/10.1088/1748-9326/ad52ad 2024-07-29T04:15:33Z Abstract This study investigates the mechanism of the hysteresis of European summer mean precipitation in a CO 2 removal (CDR) simulation. The European summer mean precipitation exhibits robust hysteresis in response to the CO 2 forcing; after decreasing substantially (∼40%) during the ramp-up period, it shows delayed recovery during the ramp-down period. We found that the precipitation hysteresis over Europe is tied to the hysteresis in the Atlantic Meridional Overturning Circulation (AMOC). During the ramp-down period, an anomalous high surface pressure circulation prevails over Europe. The anomalous high pressure system is a baroclinic response of the atmosphere to strong North Atlantic cooling associated with a weakened AMOC. This anomalous circulation suppresses summertime convective activity over the entire Europe by decreasing near-surface moist enthalpy in Central and Northern Europe while increasing lower free-tropospheric temperature in Southern Europe. Our findings underscore the need to understand complex interactions in the Earth system for reliable future projections of regional precipitation change under CDR scenarios. Article in Journal/Newspaper North Atlantic IOP Publishing Environmental Research Letters |
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IOP Publishing |
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description |
Abstract This study investigates the mechanism of the hysteresis of European summer mean precipitation in a CO 2 removal (CDR) simulation. The European summer mean precipitation exhibits robust hysteresis in response to the CO 2 forcing; after decreasing substantially (∼40%) during the ramp-up period, it shows delayed recovery during the ramp-down period. We found that the precipitation hysteresis over Europe is tied to the hysteresis in the Atlantic Meridional Overturning Circulation (AMOC). During the ramp-down period, an anomalous high surface pressure circulation prevails over Europe. The anomalous high pressure system is a baroclinic response of the atmosphere to strong North Atlantic cooling associated with a weakened AMOC. This anomalous circulation suppresses summertime convective activity over the entire Europe by decreasing near-surface moist enthalpy in Central and Northern Europe while increasing lower free-tropospheric temperature in Southern Europe. Our findings underscore the need to understand complex interactions in the Earth system for reliable future projections of regional precipitation change under CDR scenarios. |
author2 |
Korea Research Environment Open NETwork the National Center for Meteorological Supercomputer of the Korea Meteorological Administration (KMA), the National Supercomputing Center Korean Government National Research Foundation of Korea Seoul National University |
format |
Article in Journal/Newspaper |
author |
Im, Nari Kim, Daehyun An, Soon-Il Paik, Seungmok Kim, Soong-Ki Shin, Jongsoo Min, Seung-Ki Kug, Jong-Seong Oh, Hyoeun |
spellingShingle |
Im, Nari Kim, Daehyun An, Soon-Il Paik, Seungmok Kim, Soong-Ki Shin, Jongsoo Min, Seung-Ki Kug, Jong-Seong Oh, Hyoeun Hysteresis of European summer precipitation under a symmetric CO 2 ramp-up and ramp-down pathway |
author_facet |
Im, Nari Kim, Daehyun An, Soon-Il Paik, Seungmok Kim, Soong-Ki Shin, Jongsoo Min, Seung-Ki Kug, Jong-Seong Oh, Hyoeun |
author_sort |
Im, Nari |
title |
Hysteresis of European summer precipitation under a symmetric CO 2 ramp-up and ramp-down pathway |
title_short |
Hysteresis of European summer precipitation under a symmetric CO 2 ramp-up and ramp-down pathway |
title_full |
Hysteresis of European summer precipitation under a symmetric CO 2 ramp-up and ramp-down pathway |
title_fullStr |
Hysteresis of European summer precipitation under a symmetric CO 2 ramp-up and ramp-down pathway |
title_full_unstemmed |
Hysteresis of European summer precipitation under a symmetric CO 2 ramp-up and ramp-down pathway |
title_sort |
hysteresis of european summer precipitation under a symmetric co 2 ramp-up and ramp-down pathway |
publisher |
IOP Publishing |
publishDate |
2024 |
url |
http://dx.doi.org/10.1088/1748-9326/ad52ad https://iopscience.iop.org/article/10.1088/1748-9326/ad52ad https://iopscience.iop.org/article/10.1088/1748-9326/ad52ad/pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Environmental Research Letters volume 19, issue 7, page 074030 ISSN 1748-9326 |
op_rights |
http://creativecommons.org/licenses/by/4.0 https://iopscience.iop.org/info/page/text-and-data-mining |
op_doi |
https://doi.org/10.1088/1748-9326/ad52ad |
container_title |
Environmental Research Letters |
_version_ |
1810463452562456576 |