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Roshan Jha

@roshanjha.bsky.social

Research Fellow @ University of St Andrews | Interested in Temperature Extremes, Hydrology and Atmospheric Dynamics| PhD in Climate Science from IIT Bombay

2 Posts38 Follower 117 Folgt

Roshan Jha @roshanjha.bsky.social · last mo.

New study: dry-air entrainment intensifies moist heat extremes in higher latitudes in summer; continental drying could worsen this in future climates through increased lower free tropospheric dryness with @drmichaelbyrne.bsky.social doi.org/10.1029/2026GL122678

Entrainment‐Based Framework for Understanding Extratropical Moist Heat Extremes

Dry-air entrainment in the lower free troposphere intensifies extratropical moist heat extremes Entrainment-based framework explains breakdown of moist convective neutrality during extratropical ...

doi.org

Eos@eos.org · last mo.

New research into the rising frequency of extreme heat and humidity in higher-latitude regions. eos.org/research-spo...

Mike Byrne @drmichaelbyrne.bsky.social · last mo.

Counterintuitively, mixing of dry air into convecting plumes amplifies moist heat extremes. This "entrainment" effect strengthens as climate warms and dries, increasing human heat stress. Details in our new paper, led by @roshanjha.bsky.social: agupubs.onlinelibrary.wiley.com/doi/10.1029/...

agupubs.onlinelibrary.wiley.com

Eos@eos.org · last mo.

The mixing of dry air into rising plumes of warm, moist air helps explain why extremely hot and humid days are increasing in higher-latitude regions. eos.org/research-spo...

Mike Byrne @drmichaelbyrne.bsky.social · last mo.

Glacial collapse is more likely because of climate change. Glaciers are particularly vulnerable due to rapid warming in mountainous regions. This "elevation dependent warming" is caused by sfc albedo and Planck feedbacks (info: wcd.copernicus.org/articles/5/7...) www.bbc.co.uk/news/live/c6...

Nepal-Tibet: More than 350 killed in Nepal as rising lake raises fear of new flood - follow live

The US Geological Survey says "glacial collapse" triggered the wall of water and mud that tore through Nepal and Tibet. Hundreds of people are still missing.

bbc.co.uk

Eos @eos.org · last mo.

The mixing of dry air into rising plumes of warm, moist air helps explain why extremely hot and humid days are increasing in higher-latitude regions. eos.org/research-spo...

How Rising Air Plumes Help Spike Moist Heat - Eos

When dry air mixes with warm, moist air carried aloft by currents from the surface, it can contribute to rising wet-bulb temperatures near Earth’s surface.

eos.org

Roshan Jha @roshanjha.bsky.social · last mo.

Destruction of this scale may be the first time, but it is definitely not the last. Countries which emit the least bear the most.

Massive flash flood hits Nepal-China border; dozens dead, hundreds missing

YouTube video by CNN

youtu.be

Nature Reviews Earth & Environment @natrevearthenviron.nature.com · last yr.

Jha et al. assess 2024 extreme land heat, finding: - Many record-shattering events globally - >150 heatwave days in large swathes of S. America www.nature.com/articles/s43... (rdcu.be/ehobs) @roshanjha.bsky.social, @climatechirper.bsky.social per.bsky.social, @sarahinscience.bsky.social [8/n]

Extreme terrestrial heat in 2024 - Nature Reviews Earth & Environment

2024 shattered temperature records, surpassing 2023’s historic highs to become the warmest year ever recorded. Extreme heatwaves hit West Africa in February, South America and Eastern Europe in March,...

nature.com