Quantification Of Relative Contribution Of Antarctic Ozone Depletion To Increased Austral Extratropical Precipitation During 1979-2013
Attributing the observed climate changes to relevant forcing factors is critical to predicting future climate change scenarios. Precipitation observations in the Southern Hemisphere indicate an apparent moistening pattern over the extratropics during the time period 1979 to 2013. To investigate the...
Main Authors: | , , |
---|---|
Format: | Text |
Language: | unknown |
Published: |
STARS
2016
|
Subjects: | |
Online Access: | https://stars.library.ucf.edu/scopus2015/2707 |
id |
ftunicentralflor:oai:stars.library.ucf.edu:scopus2015-3706 |
---|---|
record_format |
openpolar |
spelling |
ftunicentralflor:oai:stars.library.ucf.edu:scopus2015-3706 2023-05-15T13:49:28+02:00 Quantification Of Relative Contribution Of Antarctic Ozone Depletion To Increased Austral Extratropical Precipitation During 1979-2013 Bai, Kaixu Chang, Ni Bin Gao, Wei 2016-02-27T08:00:00Z https://stars.library.ucf.edu/scopus2015/2707 unknown STARS https://stars.library.ucf.edu/scopus2015/2707 Scopus Export 2015-2019 text 2016 ftunicentralflor 2022-10-31T18:40:46Z Attributing the observed climate changes to relevant forcing factors is critical to predicting future climate change scenarios. Precipitation observations in the Southern Hemisphere indicate an apparent moistening pattern over the extratropics during the time period 1979 to 2013. To investigate the predominant forcing factor in triggering such an observed wetting climate pattern, precipitation responses to four climatic forcing factors, including Antarctic ozone, water vapor, sea surface temperature (SST), and carbon dioxide, were assessed quantitatively in sequence through an inductive approach. Coupled time-space patterns between the observed austral extratropical precipitation and each climatic forcing factor were firstly diagnosed by using the maximum covariance analysis (MCA). With the derived time series from each coupled MCA modes, statistical relationships were established between extratropical precipitation variations and each climatic forcing factor by using the extreme learning machine. Based on these established statistical relationships, sensitivity tests were conducted to estimate precipitation responses to each climatic forcing factor quantitatively. Quantified differential contribution with respect to those climatic forcing factors may explain why the observed austral extratropical moistening pattern is primarily driven by the Antarctic ozone depletion, while mildly modulated by the cooling effect of equatorial Pacific SST and the increased greenhouse gases, respectively. Text Antarc* Antarctic University of Central Florida (UCF): STARS (Showcase of Text, Archives, Research & Scholarship) Antarctic Austral Pacific The Antarctic |
institution |
Open Polar |
collection |
University of Central Florida (UCF): STARS (Showcase of Text, Archives, Research & Scholarship) |
op_collection_id |
ftunicentralflor |
language |
unknown |
description |
Attributing the observed climate changes to relevant forcing factors is critical to predicting future climate change scenarios. Precipitation observations in the Southern Hemisphere indicate an apparent moistening pattern over the extratropics during the time period 1979 to 2013. To investigate the predominant forcing factor in triggering such an observed wetting climate pattern, precipitation responses to four climatic forcing factors, including Antarctic ozone, water vapor, sea surface temperature (SST), and carbon dioxide, were assessed quantitatively in sequence through an inductive approach. Coupled time-space patterns between the observed austral extratropical precipitation and each climatic forcing factor were firstly diagnosed by using the maximum covariance analysis (MCA). With the derived time series from each coupled MCA modes, statistical relationships were established between extratropical precipitation variations and each climatic forcing factor by using the extreme learning machine. Based on these established statistical relationships, sensitivity tests were conducted to estimate precipitation responses to each climatic forcing factor quantitatively. Quantified differential contribution with respect to those climatic forcing factors may explain why the observed austral extratropical moistening pattern is primarily driven by the Antarctic ozone depletion, while mildly modulated by the cooling effect of equatorial Pacific SST and the increased greenhouse gases, respectively. |
format |
Text |
author |
Bai, Kaixu Chang, Ni Bin Gao, Wei |
spellingShingle |
Bai, Kaixu Chang, Ni Bin Gao, Wei Quantification Of Relative Contribution Of Antarctic Ozone Depletion To Increased Austral Extratropical Precipitation During 1979-2013 |
author_facet |
Bai, Kaixu Chang, Ni Bin Gao, Wei |
author_sort |
Bai, Kaixu |
title |
Quantification Of Relative Contribution Of Antarctic Ozone Depletion To Increased Austral Extratropical Precipitation During 1979-2013 |
title_short |
Quantification Of Relative Contribution Of Antarctic Ozone Depletion To Increased Austral Extratropical Precipitation During 1979-2013 |
title_full |
Quantification Of Relative Contribution Of Antarctic Ozone Depletion To Increased Austral Extratropical Precipitation During 1979-2013 |
title_fullStr |
Quantification Of Relative Contribution Of Antarctic Ozone Depletion To Increased Austral Extratropical Precipitation During 1979-2013 |
title_full_unstemmed |
Quantification Of Relative Contribution Of Antarctic Ozone Depletion To Increased Austral Extratropical Precipitation During 1979-2013 |
title_sort |
quantification of relative contribution of antarctic ozone depletion to increased austral extratropical precipitation during 1979-2013 |
publisher |
STARS |
publishDate |
2016 |
url |
https://stars.library.ucf.edu/scopus2015/2707 |
geographic |
Antarctic Austral Pacific The Antarctic |
geographic_facet |
Antarctic Austral Pacific The Antarctic |
genre |
Antarc* Antarctic |
genre_facet |
Antarc* Antarctic |
op_source |
Scopus Export 2015-2019 |
op_relation |
https://stars.library.ucf.edu/scopus2015/2707 |
_version_ |
1766251420193914880 |