Perceiving the Trend of Terrestrial Climate Change during the Past 40 year (1978-2018)
In past few decades, climate has manifested numerous shifts in its trend. Various natural and anthropogenic factors have influenced the dynamics and the trends of climate change at longer time scale. To understand the long term climate fluctuations, we have analyzed forty years (1978 - 2018) data of...
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ftbilinugalpubl:oai:ojs.pkp.sfu.ca:article/2488 2023-05-15T18:18:47+02:00 Perceiving the Trend of Terrestrial Climate Change during the Past 40 year (1978-2018) Bhargawa, Asheesh Singh, A.K. 2021-02-07 application/vnd.openxmlformats-officedocument.wordprocessingml.document application/pdf https://journals.bilpubgroup.com/index.php/jasr/article/view/2488 eng eng BILINGUAL PUBLISHING GROUP https://journals.bilpubgroup.com/index.php/jasr/article/view/2488/4359 https://journals.bilpubgroup.com/index.php/jasr/article/view/2488/2500 https://journals.bilpubgroup.com/index.php/jasr/article/view/2488 Copyright (c) 2021 Author(s) https://creativecommons.org/licenses/by-nc/4.0 Journal of Atmospheric Science Research; Vol. 4 , No. 1 (January 2021); 1-15 2630-5119 Principal component analysis Total solar irradiance (TSI) Cloud cover CO2 abundance Global surface temperature (GST) anomaly Global climate index (GCI) info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2021 ftbilinugalpubl 2023-03-14T18:46:32Z In past few decades, climate has manifested numerous shifts in its trend. Various natural and anthropogenic factors have influenced the dynamics and the trends of climate change at longer time scale. To understand the long term climate fluctuations, we have analyzed forty years (1978 - 2018) data of ten climatic parameters that are responsible to influence the climate dynamics. The parameters involved in the present study are total solar irradiance (TSI), ultra violet (UV) index, cloud cover, carbon dioxide (CO2) abundances, multivariate (ENSO) index, volcanic explosivity index (VEI), global surface temperature (GST) anomaly, global sea ice extent, global mean sea level and global precipitation anomaly. Using the above mentioned climate entities; we have constructed a proxy index to study the quantitative measure of the climate change. In this process these indicators were aggregated to a single proxy index as global climate index (GCI) that has measured the strength of present climate change in semblance with the past natural variability. To construct GCI, the principal component analysis (PCA) has been used on yearly based data for the period 1978 - 2018. Actually PCA is a statistical tool with which we can reduce the dimensionality of the data and it retains most of the variation in the new data set. Further, we have confined our study to natural climate drivers and anthropogenic climate drivers. Our result has indicated that the strongest climate change has been occurred globally by the end of the year 2018 in comparison to late 1970’s natural variability. Article in Journal/Newspaper Sea ice Bilingual Publishing Co. (BPC): E-Journals |
institution |
Open Polar |
collection |
Bilingual Publishing Co. (BPC): E-Journals |
op_collection_id |
ftbilinugalpubl |
language |
English |
topic |
Principal component analysis Total solar irradiance (TSI) Cloud cover CO2 abundance Global surface temperature (GST) anomaly Global climate index (GCI) |
spellingShingle |
Principal component analysis Total solar irradiance (TSI) Cloud cover CO2 abundance Global surface temperature (GST) anomaly Global climate index (GCI) Bhargawa, Asheesh Singh, A.K. Perceiving the Trend of Terrestrial Climate Change during the Past 40 year (1978-2018) |
topic_facet |
Principal component analysis Total solar irradiance (TSI) Cloud cover CO2 abundance Global surface temperature (GST) anomaly Global climate index (GCI) |
description |
In past few decades, climate has manifested numerous shifts in its trend. Various natural and anthropogenic factors have influenced the dynamics and the trends of climate change at longer time scale. To understand the long term climate fluctuations, we have analyzed forty years (1978 - 2018) data of ten climatic parameters that are responsible to influence the climate dynamics. The parameters involved in the present study are total solar irradiance (TSI), ultra violet (UV) index, cloud cover, carbon dioxide (CO2) abundances, multivariate (ENSO) index, volcanic explosivity index (VEI), global surface temperature (GST) anomaly, global sea ice extent, global mean sea level and global precipitation anomaly. Using the above mentioned climate entities; we have constructed a proxy index to study the quantitative measure of the climate change. In this process these indicators were aggregated to a single proxy index as global climate index (GCI) that has measured the strength of present climate change in semblance with the past natural variability. To construct GCI, the principal component analysis (PCA) has been used on yearly based data for the period 1978 - 2018. Actually PCA is a statistical tool with which we can reduce the dimensionality of the data and it retains most of the variation in the new data set. Further, we have confined our study to natural climate drivers and anthropogenic climate drivers. Our result has indicated that the strongest climate change has been occurred globally by the end of the year 2018 in comparison to late 1970’s natural variability. |
format |
Article in Journal/Newspaper |
author |
Bhargawa, Asheesh Singh, A.K. |
author_facet |
Bhargawa, Asheesh Singh, A.K. |
author_sort |
Bhargawa, Asheesh |
title |
Perceiving the Trend of Terrestrial Climate Change during the Past 40 year (1978-2018) |
title_short |
Perceiving the Trend of Terrestrial Climate Change during the Past 40 year (1978-2018) |
title_full |
Perceiving the Trend of Terrestrial Climate Change during the Past 40 year (1978-2018) |
title_fullStr |
Perceiving the Trend of Terrestrial Climate Change during the Past 40 year (1978-2018) |
title_full_unstemmed |
Perceiving the Trend of Terrestrial Climate Change during the Past 40 year (1978-2018) |
title_sort |
perceiving the trend of terrestrial climate change during the past 40 year (1978-2018) |
publisher |
BILINGUAL PUBLISHING GROUP |
publishDate |
2021 |
url |
https://journals.bilpubgroup.com/index.php/jasr/article/view/2488 |
genre |
Sea ice |
genre_facet |
Sea ice |
op_source |
Journal of Atmospheric Science Research; Vol. 4 , No. 1 (January 2021); 1-15 2630-5119 |
op_relation |
https://journals.bilpubgroup.com/index.php/jasr/article/view/2488/4359 https://journals.bilpubgroup.com/index.php/jasr/article/view/2488/2500 https://journals.bilpubgroup.com/index.php/jasr/article/view/2488 |
op_rights |
Copyright (c) 2021 Author(s) https://creativecommons.org/licenses/by-nc/4.0 |
_version_ |
1766195482811432960 |