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Ligin Joseph @ligin.bsky.social · 30/09/2026

My latest explainer on how El Niño can bring drought to some regions and flooding to others.

Ligin Joseph @ligin.bsky.social · 30/09/2026

How can the same El Niño bring drought to some places and flooding to others? My new @uk.theconversation.com explainer breaks down the Walker circulation, teleconnections and other mechanisms in simple terms, with a schematic I created for the piece. tinyurl.com/4vak6pc7 #ElNino #ClimateScience

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Ligin Joseph @ligin.bsky.social · 27/08/2026

In my latest article for @uk.theconversation.com, I look at this year’s Indian monsoon paradox: drier than normal overall, potentially influenced by El Niño, yet still bringing extreme rainfall, floods and landslides. tinyurl.com/yycyjfem @sotonoceanearth.bsky.social #ElNino #IndianMonsoon.

theconversation.com

A ‘super El Niño’ could make India’s monsoon drier yet more dangerous

El Niño summers can mean less rain overall, but more extreme daily rainfall.

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Ligin Joseph @ligin.bsky.social · 26/05/2026

In our new @natcomms.nature.com study, we show that recent tropical rainfall changes are strongly shaped by shifts in atmospheric circulation, with land–sea thermal contrast and Indo-Pacific Warm Pool intensification playing key roles.

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Ligin Joseph @ligin.bsky.social · 26/05/2026

Climate change and temperature are closely linked: as CO₂ rises, most of the planet warms. But rainfall is more complex. Are recent tropical rainfall trends following the Wet-Get-Wetter or Warm-Get-Wetter paradigms, or is something else driving the changes?

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Ligin Joseph @ligin.bsky.social · 20/05/2026

Read the paper here: doi.org/10.1038/s414...

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Ligin Joseph @ligin.bsky.social · 20/05/2026

Changes associated with the land–sea thermal contrast and the intensification of the Indo-Pacific Warm Pool appear to play an important role. We also find that CMIP6 models struggle to reproduce the observed rainfall trends, and discuss several plausible reasons for these discrepancies.

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Ligin Joseph @ligin.bsky.social · 20/05/2026

We show that recent tropical rainfall changes are primarily driven by shifts in atmospheric circulation, rather than being explained solely by traditional thermodynamic paradigms.

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Ligin Joseph @ligin.bsky.social · 20/05/2026

In our latest study published in Nature Communications, we investigate the drivers of tropical precipitation changes over recent decades and examine whether CMIP6 climate models are able to reproduce the observed patterns.

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Ligin Joseph @ligin.bsky.social · 17/04/2026

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...

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Ligin Joseph @ligin.bsky.social · 30/12/2025

New paper out in @jgroceans.bsky.social. Upper-ocean heat content in the Western Indian Ocean increases despite declining surface heat flux → driven by heat transport and convergence. Joint work: @unisouthampton.bsky.social @noc.ac.uk and IIT BBS 🔗 agupubs.onlinelibrary.wiley.com/doi/10.1029/...

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Ligin Joseph @ligin.bsky.social · 09/12/2025

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.

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Ligin Joseph @ligin.bsky.social · 16/10/2025

Wrote an article for The Conversation on this year’s 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.

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Ligin Joseph @ligin.bsky.social · 13/05/2025

- 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.

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Ligin Joseph @ligin.bsky.social · 13/05/2025

Using a Lagrangian tracing model, we tracked the evaporative sources behind these floods and found that:

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Ligin Joseph @ligin.bsky.social · 10/01/2025

Thank you! It covers 1982–2024, using 1991–2010 as the base period for the anomalies.

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Ligin Joseph @ligin.bsky.social · 10/01/2025

🌍 Global Sea Surface Temperatures (SST) are steadily rising 🌊. This radial plot shows monthly SST anomalies averaged over 60°S–60°N. Each ring = a year, and segments = months, highlighting the growing intensity of positive SST anomalies due to climate change.

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Ligin Joseph @ligin.bsky.social · 13/12/2024

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!

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