Comparative analysis of interdecadal precipitation variability over central North China and sub Saharan Africa
The interdecadal variability of precipitation over sub-Saharan Africa (SSA) and central North China (CNC) is examined and compared in this study. Previous studies have found that the two regions have similar interdecadal dry–wet evolution in the past 100 years. The results show obvious decadal preci...
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ftdatacite:10.6084/m9.figshare.7944221 2023-05-15T17:35:11+02:00 Comparative analysis of interdecadal precipitation variability over central North China and sub Saharan Africa OGOU, Faustin Katchele YANG, Qing Yawen DUAN Zhuguo MA 2019 https://dx.doi.org/10.6084/m9.figshare.7944221 https://tandf.figshare.com/articles/Comparative_analysis_of_interdecadal_precipitation_variability_over_central_North_China_and_sub_Saharan_Africa/7944221 unknown Taylor & Francis https://dx.doi.org/10.1080/16742834.2019.1593040 Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 CC-BY Space Science 29999 Physical Sciences not elsewhere classified FOS Physical sciences Medicine 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Cancer Inorganic Chemistry Science Policy Text article-journal Journal contribution ScholarlyArticle 2019 ftdatacite https://doi.org/10.6084/m9.figshare.7944221 https://doi.org/10.1080/16742834.2019.1593040 2021-11-05T12:55:41Z The interdecadal variability of precipitation over sub-Saharan Africa (SSA) and central North China (CNC) is examined and compared in this study. Previous studies have found that the two regions have similar interdecadal dry–wet evolution in the past 100 years. The results show obvious decadal precipitation fluctuations in the two regions. In CNC, a persistent negative precipitation anomaly is detected from the early 1970s to the 2000s. In SSA, a negative precipitation anomaly is apparent since the late 1970s, while a distinct upward trend is found since the 1990s although the precipitation anomaly is still negative. Significant correlation is found between the decadal precipitation anomalies in SSA and the SST modes (Atlantic Multidecadal Oscillation (AMO) and Pacific Decadal Oscillation (PDO)), as well as the North Atlantic Oscillation (NAO), while in CNC the decadal precipitation is influenced by the NAO and PDO. The EOF results show that the total explained variance of the first four EOFs in SSA is smaller than that of CNC. The fourth and third modes in SSA are significantly associated with the AMO and PDO respectively, while the first, third, and fourth modes are significantly associated with the NAO. The first mode in CNC is significantly associated with the NAO. The first mode of the precipitation anomaly in SSA fluctuates out of phase with that in CNC, while in-phase changes are apparent among the third and the fourth modes. Text North Atlantic North Atlantic oscillation DataCite Metadata Store (German National Library of Science and Technology) Pacific |
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Space Science 29999 Physical Sciences not elsewhere classified FOS Physical sciences Medicine 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Cancer Inorganic Chemistry Science Policy |
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Space Science 29999 Physical Sciences not elsewhere classified FOS Physical sciences Medicine 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Cancer Inorganic Chemistry Science Policy OGOU, Faustin Katchele YANG, Qing Yawen DUAN Zhuguo MA Comparative analysis of interdecadal precipitation variability over central North China and sub Saharan Africa |
topic_facet |
Space Science 29999 Physical Sciences not elsewhere classified FOS Physical sciences Medicine 59999 Environmental Sciences not elsewhere classified FOS Earth and related environmental sciences 39999 Chemical Sciences not elsewhere classified FOS Chemical sciences Cancer Inorganic Chemistry Science Policy |
description |
The interdecadal variability of precipitation over sub-Saharan Africa (SSA) and central North China (CNC) is examined and compared in this study. Previous studies have found that the two regions have similar interdecadal dry–wet evolution in the past 100 years. The results show obvious decadal precipitation fluctuations in the two regions. In CNC, a persistent negative precipitation anomaly is detected from the early 1970s to the 2000s. In SSA, a negative precipitation anomaly is apparent since the late 1970s, while a distinct upward trend is found since the 1990s although the precipitation anomaly is still negative. Significant correlation is found between the decadal precipitation anomalies in SSA and the SST modes (Atlantic Multidecadal Oscillation (AMO) and Pacific Decadal Oscillation (PDO)), as well as the North Atlantic Oscillation (NAO), while in CNC the decadal precipitation is influenced by the NAO and PDO. The EOF results show that the total explained variance of the first four EOFs in SSA is smaller than that of CNC. The fourth and third modes in SSA are significantly associated with the AMO and PDO respectively, while the first, third, and fourth modes are significantly associated with the NAO. The first mode in CNC is significantly associated with the NAO. The first mode of the precipitation anomaly in SSA fluctuates out of phase with that in CNC, while in-phase changes are apparent among the third and the fourth modes. |
format |
Text |
author |
OGOU, Faustin Katchele YANG, Qing Yawen DUAN Zhuguo MA |
author_facet |
OGOU, Faustin Katchele YANG, Qing Yawen DUAN Zhuguo MA |
author_sort |
OGOU, Faustin Katchele |
title |
Comparative analysis of interdecadal precipitation variability over central North China and sub Saharan Africa |
title_short |
Comparative analysis of interdecadal precipitation variability over central North China and sub Saharan Africa |
title_full |
Comparative analysis of interdecadal precipitation variability over central North China and sub Saharan Africa |
title_fullStr |
Comparative analysis of interdecadal precipitation variability over central North China and sub Saharan Africa |
title_full_unstemmed |
Comparative analysis of interdecadal precipitation variability over central North China and sub Saharan Africa |
title_sort |
comparative analysis of interdecadal precipitation variability over central north china and sub saharan africa |
publisher |
Taylor & Francis |
publishDate |
2019 |
url |
https://dx.doi.org/10.6084/m9.figshare.7944221 https://tandf.figshare.com/articles/Comparative_analysis_of_interdecadal_precipitation_variability_over_central_North_China_and_sub_Saharan_Africa/7944221 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic North Atlantic oscillation |
genre_facet |
North Atlantic North Atlantic oscillation |
op_relation |
https://dx.doi.org/10.1080/16742834.2019.1593040 |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.7944221 https://doi.org/10.1080/16742834.2019.1593040 |
_version_ |
1766134262259515392 |