Tropical cyclones enhance photosynthesis in moisture-stressed regions of India
Abstract We unravel the response of terrestrial ecosystems in India to Tropical Cyclones (TCs) originating in the North Indian Ocean (NIO). We find that about 34.6% of TCs drove greening and 65.4% caused browning response of vegetation during 2000–2020. TC-induced greening is more likely for TCs ori...
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Nature Portfolio
2025-03-01
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| Series: | npj Climate and Atmospheric Science |
| Online Access: | https://doi.org/10.1038/s41612-025-00988-z |
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| author | Rahul Kashyap Jayanarayanan Kuttippurath |
| author_facet | Rahul Kashyap Jayanarayanan Kuttippurath |
| author_sort | Rahul Kashyap |
| collection | DOAJ |
| description | Abstract We unravel the response of terrestrial ecosystems in India to Tropical Cyclones (TCs) originating in the North Indian Ocean (NIO). We find that about 34.6% of TCs drove greening and 65.4% caused browning response of vegetation during 2000–2020. TC-induced greening is more likely for TCs originated in pre-monsoon (100%) or monsoon (62.5%) than post-monsoon with large browning response (94%). Rainfall by TCs increases soil moisture (SM) and reduces climatic water deficit (CWD) for a moisture-stressed region, and its effective utilisation by vegetation triggers the greening response. Granger Causality reveals that TC-induced rain and greening response exhibit a maximum temporal lag of 40 days. The favourable vegetation response to TCs is a new insight as it sheds light on the complex Atmosphere-Land-Ocean (ALO) interactions on a regional scale. The findings can aid to improve climate models for better policy decisions aimed at climate adaptation and sustainability on both regional and global scales. |
| format | Article |
| id | doaj-art-91344648131c446d8fd73523345ebd60 |
| institution | Kabale University |
| issn | 2397-3722 |
| language | English |
| publishDate | 2025-03-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | npj Climate and Atmospheric Science |
| spelling | doaj-art-91344648131c446d8fd73523345ebd602025-08-20T03:41:49ZengNature Portfolionpj Climate and Atmospheric Science2397-37222025-03-018111610.1038/s41612-025-00988-zTropical cyclones enhance photosynthesis in moisture-stressed regions of IndiaRahul Kashyap0Jayanarayanan Kuttippurath1CORAL, Indian Institute of Technology KharagpurCORAL, Indian Institute of Technology KharagpurAbstract We unravel the response of terrestrial ecosystems in India to Tropical Cyclones (TCs) originating in the North Indian Ocean (NIO). We find that about 34.6% of TCs drove greening and 65.4% caused browning response of vegetation during 2000–2020. TC-induced greening is more likely for TCs originated in pre-monsoon (100%) or monsoon (62.5%) than post-monsoon with large browning response (94%). Rainfall by TCs increases soil moisture (SM) and reduces climatic water deficit (CWD) for a moisture-stressed region, and its effective utilisation by vegetation triggers the greening response. Granger Causality reveals that TC-induced rain and greening response exhibit a maximum temporal lag of 40 days. The favourable vegetation response to TCs is a new insight as it sheds light on the complex Atmosphere-Land-Ocean (ALO) interactions on a regional scale. The findings can aid to improve climate models for better policy decisions aimed at climate adaptation and sustainability on both regional and global scales.https://doi.org/10.1038/s41612-025-00988-z |
| spellingShingle | Rahul Kashyap Jayanarayanan Kuttippurath Tropical cyclones enhance photosynthesis in moisture-stressed regions of India npj Climate and Atmospheric Science |
| title | Tropical cyclones enhance photosynthesis in moisture-stressed regions of India |
| title_full | Tropical cyclones enhance photosynthesis in moisture-stressed regions of India |
| title_fullStr | Tropical cyclones enhance photosynthesis in moisture-stressed regions of India |
| title_full_unstemmed | Tropical cyclones enhance photosynthesis in moisture-stressed regions of India |
| title_short | Tropical cyclones enhance photosynthesis in moisture-stressed regions of India |
| title_sort | tropical cyclones enhance photosynthesis in moisture stressed regions of india |
| url | https://doi.org/10.1038/s41612-025-00988-z |
| work_keys_str_mv | AT rahulkashyap tropicalcyclonesenhancephotosynthesisinmoisturestressedregionsofindia AT jayanarayanankuttippurath tropicalcyclonesenhancephotosynthesisinmoisturestressedregionsofindia |