Bibliographic Details
| Title: |
Anthropogenically-forced weakening of the Indian summer monsoon and enhancement of the western North Pacific tropical cyclogenesis |
| Authors: |
Aswin Sagar, R. Krishnan, T. P. Sabin |
| Source: |
Frontiers in Earth Science, Vol 11 (2023) |
| Publisher Information: |
Frontiers Media S.A., 2023. |
| Publication Year: |
2023 |
| Collection: |
LCC:Science |
| Subject Terms: |
Indian summer monsoon (ISM), western North Pacific (WNP) tropical cyclogenesis, climate change, forced ISM weakening, enhanced WNP convection, genesis potential index (GPI), Science |
| More Details: |
This study addresses the role of human-induced climate change on the interactions of convective activities between the Indian summer monsoon (ISM) and western North Pacific (WNP) regions - an important scientific issue which has been hitherto overlooked. We have examined this problem using two numerical experiments of a high-resolution climate model, with and without anthropogenic forcing (i.e., HIST and HISTNAT) for the historical period 1951–2005, supplemented by innovative diagnostics like causal network analysis. Our findings suggest that an anthropogenically-forced weakening of the ISM circulation tends to significantly enhance the genesis potential index (GPI) of the WNP tropical cyclones by 13.5% and associated convective activities, by reorienting the large-scale flow over the tropical Indo-Pacific in a manner that is conducive for enhancement of the WNP tropical cyclogenesis. Additionally, it is found that the probability of extremely low sea-level pressure (SLP) ( |
| Document Type: |
article |
| File Description: |
electronic resource |
| Language: |
English |
| ISSN: |
2296-6463 |
| Relation: |
https://www.frontiersin.org/articles/10.3389/feart.2023.1149344/full; https://doaj.org/toc/2296-6463 |
| DOI: |
10.3389/feart.2023.1149344 |
| Access URL: |
https://doaj.org/article/1791050c189b49868723a5c34c4b7908 |
| Accession Number: |
edsdoj.1791050c189b49868723a5c34c4b7908 |
| Database: |
Directory of Open Access Journals |
