Decadal-to-Multidecadal Variability of Seasonal Land Precipitation in Northern Hemisphere in Observation and CMIP6 Historical Simulations
Based on the centennial-scale observations and CMIP6 historical simulations, this paper employs the ensemble empirical mode decomposition to extract the decadal-to-multidecadal variability of land precipitation (DMVLP) in the northern hemisphere. The spatial distributions of the dominant mode from t...
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ftdoajarticles:oai:doaj.org/article:baa71b7e95bf4c56883efba734f23409 2023-05-15T17:34:09+02:00 Decadal-to-Multidecadal Variability of Seasonal Land Precipitation in Northern Hemisphere in Observation and CMIP6 Historical Simulations Hua Chen Zhenchen Xu 2020-02-01T00:00:00Z https://doi.org/10.3390/atmos11020195 https://doaj.org/article/baa71b7e95bf4c56883efba734f23409 EN eng MDPI AG https://www.mdpi.com/2073-4433/11/2/195 https://doaj.org/toc/2073-4433 2073-4433 doi:10.3390/atmos11020195 https://doaj.org/article/baa71b7e95bf4c56883efba734f23409 Atmosphere, Vol 11, Iss 2, p 195 (2020) decadal-to-multidecadal variability seasonal land precipitation cmip6 historical simulations Meteorology. Climatology QC851-999 article 2020 ftdoajarticles https://doi.org/10.3390/atmos11020195 2022-12-31T03:22:30Z Based on the centennial-scale observations and CMIP6 historical simulations, this paper employs the ensemble empirical mode decomposition to extract the decadal-to-multidecadal variability of land precipitation (DMVLP) in the northern hemisphere. The spatial distributions of the dominant mode from the empirical orthogonal function are different in four seasons. Regions with the same sign of precipitation anomalies are likely to be teleconnected through oceanic forcing. The temporal evolutions of the leading modes are similar in winter and spring, with an amplitude increasing after the late 1970s, probably related to the overlap of oceanic multidecadal signals. In winter and spring, the Interdecadal Pacific Oscillation (IPO) and the Atlantic Multidecadal Oscillation (AMO) play a joint role. They were in phase before late 1970s and out of phase after then, weakening/strengthening the impacts of the North Pacific and North Atlantic on the DMVLP before/after late 1970s. In summer and autumn, AMO alone plays a part and the amplitude of time series does not vary as in winter and spring. The ability of the coupled models from CMIP6 historical simulations is also evaluated. The good-models average largely captures the spatial structure in four seasons and the associated oceanic signals. The poor-models average is hardly or weakly correlated with observation. Article in Journal/Newspaper North Atlantic Directory of Open Access Journals: DOAJ Articles Pacific Atmosphere 11 2 195 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
decadal-to-multidecadal variability seasonal land precipitation cmip6 historical simulations Meteorology. Climatology QC851-999 |
spellingShingle |
decadal-to-multidecadal variability seasonal land precipitation cmip6 historical simulations Meteorology. Climatology QC851-999 Hua Chen Zhenchen Xu Decadal-to-Multidecadal Variability of Seasonal Land Precipitation in Northern Hemisphere in Observation and CMIP6 Historical Simulations |
topic_facet |
decadal-to-multidecadal variability seasonal land precipitation cmip6 historical simulations Meteorology. Climatology QC851-999 |
description |
Based on the centennial-scale observations and CMIP6 historical simulations, this paper employs the ensemble empirical mode decomposition to extract the decadal-to-multidecadal variability of land precipitation (DMVLP) in the northern hemisphere. The spatial distributions of the dominant mode from the empirical orthogonal function are different in four seasons. Regions with the same sign of precipitation anomalies are likely to be teleconnected through oceanic forcing. The temporal evolutions of the leading modes are similar in winter and spring, with an amplitude increasing after the late 1970s, probably related to the overlap of oceanic multidecadal signals. In winter and spring, the Interdecadal Pacific Oscillation (IPO) and the Atlantic Multidecadal Oscillation (AMO) play a joint role. They were in phase before late 1970s and out of phase after then, weakening/strengthening the impacts of the North Pacific and North Atlantic on the DMVLP before/after late 1970s. In summer and autumn, AMO alone plays a part and the amplitude of time series does not vary as in winter and spring. The ability of the coupled models from CMIP6 historical simulations is also evaluated. The good-models average largely captures the spatial structure in four seasons and the associated oceanic signals. The poor-models average is hardly or weakly correlated with observation. |
format |
Article in Journal/Newspaper |
author |
Hua Chen Zhenchen Xu |
author_facet |
Hua Chen Zhenchen Xu |
author_sort |
Hua Chen |
title |
Decadal-to-Multidecadal Variability of Seasonal Land Precipitation in Northern Hemisphere in Observation and CMIP6 Historical Simulations |
title_short |
Decadal-to-Multidecadal Variability of Seasonal Land Precipitation in Northern Hemisphere in Observation and CMIP6 Historical Simulations |
title_full |
Decadal-to-Multidecadal Variability of Seasonal Land Precipitation in Northern Hemisphere in Observation and CMIP6 Historical Simulations |
title_fullStr |
Decadal-to-Multidecadal Variability of Seasonal Land Precipitation in Northern Hemisphere in Observation and CMIP6 Historical Simulations |
title_full_unstemmed |
Decadal-to-Multidecadal Variability of Seasonal Land Precipitation in Northern Hemisphere in Observation and CMIP6 Historical Simulations |
title_sort |
decadal-to-multidecadal variability of seasonal land precipitation in northern hemisphere in observation and cmip6 historical simulations |
publisher |
MDPI AG |
publishDate |
2020 |
url |
https://doi.org/10.3390/atmos11020195 https://doaj.org/article/baa71b7e95bf4c56883efba734f23409 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Atmosphere, Vol 11, Iss 2, p 195 (2020) |
op_relation |
https://www.mdpi.com/2073-4433/11/2/195 https://doaj.org/toc/2073-4433 2073-4433 doi:10.3390/atmos11020195 https://doaj.org/article/baa71b7e95bf4c56883efba734f23409 |
op_doi |
https://doi.org/10.3390/atmos11020195 |
container_title |
Atmosphere |
container_volume |
11 |
container_issue |
2 |
container_start_page |
195 |
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1766132893571088384 |