Our new paper on marine heatwaves in the North Indian Ocean is now published in Frontiers in Climate.
We identify distinct modes of marine heatwave variability shaped by interactions between ENSO and the Monsoon Intraseasonal Oscillation.
Read more: www.frontiersin.org/journals/cli...
Posts by Ligin Joseph
New paper out in @jgroceans.bsky.social.
Upper-ocean heat content in the Western Indian Ocean increases despite declining surface heat flux β driven by heat transport and convergence.
Joint work: @unisouthampton.bsky.social @noc.ac.uk and IIT BBS
π agupubs.onlinelibrary.wiley.com/doi/10.1029/...
In my latest article for @uk.theconversation.com, I break down how warmer oceans, higher evaporation, slow storm motion, and coastal proximity can turn even weak cyclones into intense rainmakers.
Wrote an article for The Conversation on this yearβs extreme monsoon rainfall and its increasing trend.
It summarizes some of the major flooding events this year, explores their causes, and discusses the long-term trend in extreme monsoon precipitation over India.
- Moisture in the 2023 event was primarily sourced from regions near Madagascar and the western Indian Ocean, while 2013 had stronger inland contributions.
- The Bay of Bengal acted more as a vapor transport pathway than a direct moisture source.
Using a Lagrangian tracing model, we tracked the evaporative sources behind these floods and found that:
Our new study in Climate Dynamics reveals how interactions between the subpolar and subtropical jet streams played a critical role in triggering the extreme rainfall events over the North Indian Subcontinent in 2013 and 2023.
Read: link.springer.com/article/10.1...
Thank you! It covers 1982β2024, using 1991β2010 as the base period for the anomalies.
π Global Sea Surface Temperatures (SST) are steadily rising π.
This radial plot shows monthly SST anomalies averaged over 60Β°Sβ60Β°N. Each ring = a year, and segments = months, highlighting the growing intensity of positive SST anomalies due to climate change.
The 2024 Southwest Monsoon in India recorded 7.6% above the Long Period Average (LPA), marking an 'excess rainfall' year. This visualization shows monsoon trends over decades, revealing fluctuations influenced by ENSO and IOD phases.
Thanks to @lijodxl.bsky.social for insightful suggestions!