Dynamical and hydrological changes in climate simulations of the last millennium
Simulations of climate of the last millennium (LM) show that external forcing had a major contribution to the evolution of temperatures; warmer and colder periods like the Medieval Climate Anomaly (MCA; ca. 950–1250 CE) and the Little Ice Age (LIA; ca. 1450–1850 CE) were critically influenced by cha...
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fttriple:oai:gotriple.eu:oai:doaj.org/article:3f81d481282444f0a30c3d37b9f76b24 2023-05-15T17:36:18+02:00 Dynamical and hydrological changes in climate simulations of the last millennium P. J. Roldán-Gómez J. F. González-Rouco C. Melo-Aguilar J. E. Smerdon 2020-07-01 https://doi.org/10.5194/cp-16-1285-2020 https://cp.copernicus.org/articles/16/1285/2020/cp-16-1285-2020.pdf https://doaj.org/article/3f81d481282444f0a30c3d37b9f76b24 en eng Copernicus Publications doi:10.5194/cp-16-1285-2020 1814-9324 1814-9332 https://cp.copernicus.org/articles/16/1285/2020/cp-16-1285-2020.pdf https://doaj.org/article/3f81d481282444f0a30c3d37b9f76b24 undefined Climate of the Past, Vol 16, Pp 1285-1307 (2020) geo envir Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2020 fttriple https://doi.org/10.5194/cp-16-1285-2020 2023-01-22T18:10:38Z Simulations of climate of the last millennium (LM) show that external forcing had a major contribution to the evolution of temperatures; warmer and colder periods like the Medieval Climate Anomaly (MCA; ca. 950–1250 CE) and the Little Ice Age (LIA; ca. 1450–1850 CE) were critically influenced by changes in solar and volcanic activity. Even if this influence is mainly observed in terms of temperatures, evidence from simulations and reconstructions shows that other variables related to atmospheric dynamics and hydroclimate were also influenced by external forcing over some regions. In this work, simulations from the Coupled Model Intercomparison Project Phase 5 and Paleoclimate Modelling Intercomparison Project Phase 3 (CMIP5/PMIP3) are analyzed to explore the influence of external forcings on the dynamical and hydrological changes during the LM at different spatial and temporal scales. Principal component (PC) analysis is used to obtain the modes of variability governing the global evolution of climate and to assess their correlation with the total external forcing at multidecadal to multicentennial timescales. For shorter timescales, a composite analysis is used to address the response to specific events of external forcing like volcanic eruptions. The results show coordinated long-term changes in global circulation patterns, which suggest expansions and contractions of the Hadley cells and latitudinal displacements of westerlies in response to external forcing. For hydroclimate, spatial patterns of drier and wetter conditions in areas influenced by the North Atlantic Oscillation (NAO), Northern Annular Mode (NAM), and Southern Annular Mode (SAM) and alterations in the intensity and distribution of monsoons and convergence zones are consistently found. Similarly, a clear short-term response is found in the years following volcanic eruptions. Although external forcing has a greater influence on temperatures, the results suggest that dynamical and hydrological variations over the LM exhibit a direct response to ... Article in Journal/Newspaper North Atlantic North Atlantic oscillation Unknown Climate of the Past 16 4 1285 1307 |
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geo envir P. J. Roldán-Gómez J. F. González-Rouco C. Melo-Aguilar J. E. Smerdon Dynamical and hydrological changes in climate simulations of the last millennium |
topic_facet |
geo envir |
description |
Simulations of climate of the last millennium (LM) show that external forcing had a major contribution to the evolution of temperatures; warmer and colder periods like the Medieval Climate Anomaly (MCA; ca. 950–1250 CE) and the Little Ice Age (LIA; ca. 1450–1850 CE) were critically influenced by changes in solar and volcanic activity. Even if this influence is mainly observed in terms of temperatures, evidence from simulations and reconstructions shows that other variables related to atmospheric dynamics and hydroclimate were also influenced by external forcing over some regions. In this work, simulations from the Coupled Model Intercomparison Project Phase 5 and Paleoclimate Modelling Intercomparison Project Phase 3 (CMIP5/PMIP3) are analyzed to explore the influence of external forcings on the dynamical and hydrological changes during the LM at different spatial and temporal scales. Principal component (PC) analysis is used to obtain the modes of variability governing the global evolution of climate and to assess their correlation with the total external forcing at multidecadal to multicentennial timescales. For shorter timescales, a composite analysis is used to address the response to specific events of external forcing like volcanic eruptions. The results show coordinated long-term changes in global circulation patterns, which suggest expansions and contractions of the Hadley cells and latitudinal displacements of westerlies in response to external forcing. For hydroclimate, spatial patterns of drier and wetter conditions in areas influenced by the North Atlantic Oscillation (NAO), Northern Annular Mode (NAM), and Southern Annular Mode (SAM) and alterations in the intensity and distribution of monsoons and convergence zones are consistently found. Similarly, a clear short-term response is found in the years following volcanic eruptions. Although external forcing has a greater influence on temperatures, the results suggest that dynamical and hydrological variations over the LM exhibit a direct response to ... |
format |
Article in Journal/Newspaper |
author |
P. J. Roldán-Gómez J. F. González-Rouco C. Melo-Aguilar J. E. Smerdon |
author_facet |
P. J. Roldán-Gómez J. F. González-Rouco C. Melo-Aguilar J. E. Smerdon |
author_sort |
P. J. Roldán-Gómez |
title |
Dynamical and hydrological changes in climate simulations of the last millennium |
title_short |
Dynamical and hydrological changes in climate simulations of the last millennium |
title_full |
Dynamical and hydrological changes in climate simulations of the last millennium |
title_fullStr |
Dynamical and hydrological changes in climate simulations of the last millennium |
title_full_unstemmed |
Dynamical and hydrological changes in climate simulations of the last millennium |
title_sort |
dynamical and hydrological changes in climate simulations of the last millennium |
publisher |
Copernicus Publications |
publishDate |
2020 |
url |
https://doi.org/10.5194/cp-16-1285-2020 https://cp.copernicus.org/articles/16/1285/2020/cp-16-1285-2020.pdf https://doaj.org/article/3f81d481282444f0a30c3d37b9f76b24 |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_source |
Climate of the Past, Vol 16, Pp 1285-1307 (2020) |
op_relation |
doi:10.5194/cp-16-1285-2020 1814-9324 1814-9332 https://cp.copernicus.org/articles/16/1285/2020/cp-16-1285-2020.pdf https://doaj.org/article/3f81d481282444f0a30c3d37b9f76b24 |
op_rights |
undefined |
op_doi |
https://doi.org/10.5194/cp-16-1285-2020 |
container_title |
Climate of the Past |
container_volume |
16 |
container_issue |
4 |
container_start_page |
1285 |
op_container_end_page |
1307 |
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