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Hemant Khatri

@hemant-khatri.bsky.social
99 followers 134 following 25 posts

Physical Oceanographer and Climate Scientist | Senior Scientist @ UK Met Office | hmkhatri.github.io | views and thoughts expressed here are my own

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Reposted by Hemant Khatri
David Ho @davidho.bsky.social · 22/09/2026
Tellus has a long, storied history. I submitted my first paper there 30 years ago for that reason. I'm excited about Tellus's rebirth and plan to submit my next paper on the Arctic Ocean carbon cycle there. In the age of money-grubbing publishers, I encourage you to consider Tellus.
Publication Fees
Starting in 2026, Tellus operates as a Diamond Open Access journal.
All articles are published Open Access with no fees for authors — no submission charges and no article processing charges (APCs).
This model is made possible through financial support from the Max Planck Digital Library (MPDL), the International Meteorological Institute (IMI), and the Bolin Centre for Climate Research, which together cover the journal's publication costs.

 🌊🧪⚒️
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Ed Hawkins @edhawkins.org · 26/06/2026
Maximum temperature anomalies over the UK for the last two days. If you're wondering whether we need a new colour scale... you're not wrong. These anomaly maps are relative to the 1991-2020 average. (Based on HadUK-Grid dataset and produced by the Met Office National Climate Information Centre)
Temperature anomalies on 24th June 2026Temperature anomalies on 25th June 2026
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Reposted by Hemant Khatri
Michelle Cusolito, M.Ed. ❌👑 @mcusolito.bsky.social · 02/06/2026
A lack of scientific understanding leads to this. 🌊 #STEM #MarineScience Trump Administration to Dismantle Ocean Monitoring System www.nytimes.com/2026/06/01/c...
nytimes.com
Trump Administration to Dismantle Ocean Monitoring System
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Zack Labe @zacklabe.com · 30/03/2026
Changes in March temperatures in the #Arctic by decade... (now updated through 2025 data) Data from @copernicusecmwf.bsky.social ERA5 reanalysis.
Four polar stereographic maps showing Arctic near-surface air temperature anomalies for the month of March in 1986-1995, 1996-2005, 2006-2015, and 2016-2025. Most all areas are observing long-term warming, which is largest at the edges of the Arctic Ocean on the Atlantic and Pacific facing marginal seas.
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Hemant Khatri @hemant-khatri.bsky.social · 26/03/2026
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Reposted by Hemant Khatri
David Ho @davidho.bsky.social · 10/03/2026
It’s astounding and encouraging that the Met Office put out these long scientific explanations of how our world works. We need more science in the world like this. 👏
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Hemant Khatri @hemant-khatri.bsky.social · 27/02/2026
Ocean scienceseeting 2026 over. ✌️ Brain: 🧠🔥 Feet: 🦶😫 Already looking forward to OSM28. #OSM26
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Reposted by Hemant Khatri
Hemant Khatri @hemant-khatri.bsky.social · 25/02/2026
Are you at ocean sciences meeting? Wanna hear about ocean memory and its role in climate variability? Check out my talk at 11 am on 26th Feb in CC42B: Global Teleconnections session in Alsh-SEC. Would love your take on ocean memory! Come by if you can make it. #OSM26 @ricwilli.bsky.social
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Hemant Khatri @hemant-khatri.bsky.social · 25/02/2026
Are you at ocean sciences meeting? Wanna hear about ocean memory and its role in climate variability? Check out my talk at 11 am on 26th Feb in CC42B: Global Teleconnections session in Alsh-SEC. Would love your take on ocean memory! Come by if you can make it. #OSM26 @ricwilli.bsky.social
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Hemant Khatri @hemant-khatri.bsky.social · 24/02/2026
Great talk by Prof. Eleanor Frajka-Williamson @eleanorfrajka.bsky.social on the history of AMOC research! Fascinating to see how decades of observations have evolved our understanding of the Atlantic meridional overturning circulation and its role in our climate system. #OSM26
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Hemant Khatri @hemant-khatri.bsky.social · 23/02/2026
Historically, the U.S. has funded almost 50% of global ocean observation programs. However, amidst shifting geopolitics and rising global uncertainty, it remains to be seen whether other nations will step up to fill the funding gap. #OSM26
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Lisa Beal @letstalkocean.bsky.social · 10/02/2026
Got ocean science you’re excited about?Want to support 🌊community programs? Looking for editors and reviewers who care? @jgroceans.bsky.social
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Hemant Khatri @hemant-khatri.bsky.social · 07/12/2025
Excited to share our new publication in GRL We examine how a seasonal North Atlantic Oscillation affects the thermal and biogeochemical states in the North Atlantic Ocean for many years. agupubs.onlinelibrary.wiley.com/doi/10.1029/... @agu.org @ricliv.bsky.social
agupubs.onlinelibrary.wiley.com
Contrasting Fast and Slow Ocean Thermal, Carbon and Nutrient Responses to the North Atlantic Oscillation
Ocean thermal, carbon and nutrient states respond to the North Atlantic Oscillation on fast and slow timescales, lasting up to a decade Thermal variability is driven by anomalous surface winds an...
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Sabrina Fernandes @sabrinafernandes.bsky.social · 22/11/2025
COP30 overpromised, underdelivered, empowered distractions, backtracked on issues and once again gave big oil and big ag a free pass. Unfortunately, the suspicions of climate scientists (here in Brazil and abroad) were confirmed again.
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Lisa Beal @letstalkocean.bsky.social · 19/11/2025
Science fraud is on the rise, facilitated by for-profit, open-access journals (Richardson et al, 2025, PNAS). These same journals are accelerating author and reviewer burnout by profiting from quantity while neglecting quality. Choose society journals where reputation and community are everything!
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The Economist @economist.com · 09/11/2025
New data modelling suggests that the world is on track to warm by 2°C and 3°C even if countries met every near-term climate pledge and hit their targets for net-zero CO₂ emissions
econ.st
For the first time, climate models show the 1.5°C goal is dead
Governments have failed to limit global warming. What comes next?
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Zack Labe @zacklabe.com · 04/10/2025
Record warm ocean temperatures continued in September across the North Pacific Ocean, with a number of consequential impacts (including on downstream weather patterns). This graph shows the average for a band across the midlatitudes for every September from 1854-2025 using @noaa.gov ERSSTv5 data.
Green line graph time series of average sea surface temperature anomalies for each September from 1850 through 2025 for only the midlatitude region of the North Pacific Ocean. There is large interannual variability, but an overall long-term increasing trend. Anomalies are computed relative to a 1981-2010 baseline. 2025 is a record high.
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Prof Michael Meredith 🌊🧪🥼❄️ @oceanandice.bsky.social · 31/08/2025
Two stories juxtaposed on the BBC website... sigh. Anyone else spot the irony here?
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Hemant Khatri @hemant-khatri.bsky.social · 01/09/2025
I guess I was right to switch to @bsky.app from Twitter. www.theguardian.com/technology/2...
theguardian.com
Science research gets more engagement on Bluesky than X, study finds
Bluesky posts referencing scholarly articles ‘find substantially higher levels of interaction’ than on Elon Musk’s platform
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Bloomberg News @bloomberg.com · 27/08/2025
Heavy monsoon rains trigger flash floods across Pakistan and India, forcing mass evacuations and causing deaths.
bloom.bg
Deadly Monsoon Rains Force Mass Evacuations in South Asia
Heavy monsoon rains have triggered flash floods across Pakistan and India, forcing mass evacuations and causing deaths.
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National Oceanography Centre @noc.ac.uk · 14/07/2025
@metoffice.gov.uk ‘s 'State of the UK Climate' report is out today, with some key findings: 🌊UK sea level is rising faster than the global average 🌡️extremes are becoming the norm 🥇record breaking weather events are becoming more frequent 🔥the last 3 yrs have been in the UK's top 5 warmest on record
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Lily Dove @solilyquy.bsky.social · 07/07/2025
The Secretary of Commerce's new policy requiring his personal review of all NOAA contracts over $100,000 is directly harming American science. 🧪 How do I know? Because this morning, twelve of America's rising leaders in climate science (including myself) were furloughed.
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Zack Labe @zacklabe.com · 30/06/2025
What a tragedy this is even being proposed on paper... 💔 NOAA FY2026 Congressional Justification: www.noaa.gov/sites/defaul...
Termination of OAR’s Climate Laboratories and Cooperative Institutes (-$102,292, -204 FTE/ -216 Positions) –NOAA will continue to support high priority ocean and weather research programs in NOS and NWS.

In coordination with the requested terminations for Weather Laboratories and Cooperative Institutes (see OAR-10) and Ocean Laboratories and Cooperative Institutes (see OAR-19), NOAA will close the Atlantic Oceanographic & Meteorological Laboratory (AOML) in Miami, FL; the Air Resources Laboratory (ARL) in College Park, MD, Idaho Falls, ID, and Oak Ridge, TN, as well as a nation-wide network of soil moisture sensors; the Chemical Sciences Laboratory (CSL) in Boulder, CO; the Geophysical Fluid Dynamics Laboratory (GFDL) in Princeton, NJ; the Global Monitoring Laboratory (GML) in Boulder, CO, Utqiaġvik, AK, Mauna Loa, HI, Hilo, HI, Big Island, HI, American Samoa, and the South Pole; the Pacific Marine Environmental Laboratory (PMEL) in Seattle, WA; and the Physical Sciences Laboratory (PSL) in Boulder, CO.
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Dr. Jeff Masters @drjeffmasters.bsky.social · 01/07/2025
Excellent post by @dinahvp.bsky.social‬ on the plan to devastate NOAA research, with quotes from @franklinjamesl.bsky.social @wxmanms1.bsky.social. "Only a small fraction of NOAA Research would remain and be transferred to the NWS, including portions of the weather, tornado and technology research."
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Zack Labe @zacklabe.com · 25/06/2025
Awful. More horrible science news "The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) learned yesterday that the Department of Defense (DoD) will stop processing & delivering the Special Sensor Microwave Imager/Sounder (SSMIS) data no later than 30 June 2025."
Screenshot from NSIDC that says: "Dear Colleague:

The NASA National Snow and Ice Data Center Distributed Active Archive Center (NSIDC DAAC) learned yesterday that the Department of Defense (DoD) will stop processing and delivering the Special Sensor Microwave Imager/Sounder (SSMIS) data no later than 30 June 2025. The SSMIS data are used as input for the following NSIDC DAAC-produced data sets, which will therefore stop processing no later than 30 June 2025:"
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David Ho @davidho.bsky.social · 25/06/2025
I know there’s a lot of news right now but this is really crazy. They’re booting the National Science Foundation out of its newish building with no plans for where 1800 people are going to go.
eos.org
National Science Foundation Staff Booted From Headquarters - Eos
Staff at the National Science Foundation (NSF) were notified on 25 June that the agency’s office space, located in Alexandria, Va., will be taken over by Department of Housing and Urban Development (H...
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Hemant Khatri @hemant-khatri.bsky.social · 04/06/2025
Great initiative by Bill Gates. The global economic uncertainty and wars are hitting poor countries the most. Hope this initiative would provide the required investment.
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Dhruv Bhagtani @dhruv21.bsky.social · 30/05/2025
Excited to share new research in the Journal of Geophysical Research:Oceans with @andyhogg.bsky.social, @navidcy.bsky.social, Ryan Holmes, and @hemant-khatri.bsky.social on how the North Atlantic Oscillation impacts the basin's subtropical and subpolar gyres: doi.org/10.1029/2024... 🌊
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Alejandra Caraballo @esqueer.net · 22/05/2025
Trump just revoked the ability for foreign students to enroll at Harvard. Every foreign student, which is in the thousands, enrolled for next year at Harvard will not be able to continue studying if this isn't challenged in court. www.nytimes.com/2025/05/22/u...
nytimes.com
Trump Administration Halts Harvard’s Ability to Enroll International Students
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Ed Hawkins @edhawkins.org · 12/05/2025
Updated Climate Visuals (1) Warming stripes for atmosphere and ocean (2) Climate indicators (adding land humidity for 2024) (3) UK climate indicators (adding some 2024 data) ed-hawkins.github.io/climate-visu...
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David Ho @davidho.bsky.social · 09/05/2025
RIP American science: NSF faces radical shake-up as officials abolish its 37 divisions, layoff staff, and terminate more funded grants.
science.org
Exclusive: NSF faces radical shake-up as officials abolish its 37 divisions
Changes seen as a response to presidential directives on what research to fund
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Hemant Khatri @hemant-khatri.bsky.social · 01/05/2025
Interesting study showing economic losses due to emissions by individual fossil fuel companies. Such studies aimed at quantifying economic losses and emissions by individual sectors, companies and countries are needed to determine accountability for global warming. www.nature.com/articles/s41...
nature.com
Carbon majors and the scientific case for climate liability - Nature
A transparent and reproducible scientific framework is introduced to formalize how trillions in economic losses are attributable to the extreme heat caused by emissions from fossil fuel companies, whi...
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Zack Labe @zacklabe.com · 24/04/2025
"The possible elimination of the lab, called GFDL, in concert with potential cuts to other NOAA operations, threatens irreparable harm not only to global understanding of climate change and long-range scenarios for the planet but to the country’s safety, competitiveness and national security."
propublica.org
White House Proposal Could Gut Climate Modeling the World Depends On
Potential funding cuts for NOAA and its research partners threaten irreparable harm not only to climate research but to American safety, competitiveness, and national security.
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Hemant Khatri @hemant-khatri.bsky.social · 22/04/2025
That's definitely on my reading list.
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Hemant Khatri @hemant-khatri.bsky.social · 18/04/2025
Looks like Trump has vowed to destroy everything, including oceans, climate research, trade, freedom of speech.
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Zack Labe @zacklabe.com · 17/04/2025
"To envision the disastrous impact of this plan, one only needs to see what NOAA research has provided to the U.S. taxpayer and imagine where we would be without it." "Now is the time to reach out to your elected representatives." "Stand Up for NOAA Research" - @nwas.org and @ametsoc.org statement
ametsoc.org
Stand Up for NOAA Research – The Time to Act is Now
The AMS is a global community committed to advancing weather, water, and climate science and service.
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Hemant Khatri @hemant-khatri.bsky.social · 17/04/2025
That's insane.
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Henri F. Drake @henrifdrake.bsky.social · 16/04/2025
It's even worse than removing the grant funding for university research (in groups like mine at UC Irvine). NOAA labs and cooperative institutes collect the climate data we use, develop the predictive weather and climate models, and train the students we hire. This demolishes U.S. climate research.
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David Ho @davidho.bsky.social · 13/04/2025
Critical yet often overlooked is that NOAA's Oceanic and Atmospheric Research maintains vital long-term monitoring programs like the CO₂ Keeling Curve that, while essential, often struggle for funding from agencies like NSF that prioritize hypothesis-driven research over sustained observation.
nytimes.com
White House Plan Calls for NOAA Research Programs to Be Dismantled (Gift Article)
A Trump administration budget proposal would essentially eliminate one of the world’s foremost Earth sciences research operations.
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Hemant Khatri @hemant-khatri.bsky.social · 09/04/2025
It's sad to see CIMES funding cut at Princeton. It has been an incredibly successful research program.
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Prof Michael Meredith 🌊🧪🥼❄️ @oceanandice.bsky.social · 03/04/2025
The big question is - will the penguins now impose reciprocal tariffs? www.theguardian.com/us-news/2025...
theguardian.com
Trump imposes tariffs on uninhabited Heard and McDonald Islands near Antarctica
Australian prime minister surprised after remote external territories – including islands home to penguins – targeted by US president
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Simon Lee @simonleewx.com · 12/03/2025
10th UK Climate Dynamics Workshop 2025 7–9 July, Met Office, Exeter Abstract deadline 16 May www.rmets.org/event/10th-u...
rmets.org
10th UK Climate Dynamics Workshop 2025
UK Climate Dynamics Workshops are annual in-person events aiming to promote collaboration amongst the UK academic sector and the Met Office.
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Eric Topol @erictopol.bsky.social · 01/03/2025
Francis Collins, the NIH Director for 12 years, led the Human Genome Project and other NIH efforts for 32 years, resigned today. Key words from his resignation letter www.nytimes.com/2025/03/01/u...
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Zack Labe @zacklabe.com · 24/03/2025
Monday ice update - #Arctic sea ice extent is currently the 2nd lowest on record (JAXA data) • about 400,000 km² below the 2010s mean • about 840,000 km² below the 2000s mean • about 1,330,000 km² below the 1990s mean • about 1,760,000 km² below the 1980s mean Plots: zacklabe.com/arctic-sea-i... 🧪
Line graph time series of 2025's daily Arctic sea ice extent compared to decadal averages from the 1980s to the 2010s. The decadal averages are shown with different colored lines with purple for the 1980s, blue for the 1990s, green for the 2000s, and white for the 2010s. Thin white lines are also shown for each year from 2000 to 2024. 2025 is shown with a thick gold line. There is a long-term decreasing trend in ice extent for every day of the year shown on this graph between January and April by looking at the decadal average line positions.
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David Ho @davidho.bsky.social · 22/03/2025
What troubles me about Columbia, an institution I was associated with for 34 years, is that the actions of the Trump administration serve as a test case for future pressure on other universities, many of which lack the resources to fight. Things are gonna suck for academia in the US.
nytimes.com
Columbia University’s Concessions to Trump Seen as a Watershed (Gift Article)
Threatened with losing $400 million in federal funding, the university agreed to overhaul its protest policies and security practices.
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David Ho @davidho.bsky.social · 22/03/2025
This won't end well.
A scorpion labeled Trump on the back of a frog labeled Columbia University, from the story in Lev Nitoburg's 1933 novel The German Quarter.
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Zack Labe @zacklabe.com · 16/03/2025
Methane (CH₄) is a potent greenhouse gas. Here are the latest monthly observations... 🧪⚒️ November 2024 - 1940.75 ppb November 2023 - 1931.75 ppb + Data: gml.noaa.gov/ccgg/trends_... + More info on trends: www.pnas.org/doi/abs/10.1...
Red colored line graph time series of global atmospheric methane abundance from January 1984 through November 2024. Methane abundance is measured in units of parts per billion. Current levels are 1941 ppb. A seasonal cycle is visible on the graph. There is also decadal variability and a long-term increasing trend.
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Hemant Khatri @hemant-khatri.bsky.social · 15/03/2025
It may be the time for Tesla to find a new CEO.
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David Ho @davidho.bsky.social · 15/03/2025
It would be good if there was a government agency tasked with warning people about these things.
wapo.st
Storms kill 16 across the U.S. as tornado risks are set to peak
Numerous significant tornadoes are expected Saturday afternoon and evening, with the highest risk across several states in the Deep South, forecasters say.
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Professor Matthew England FAA @profmattengland.bsky.social · 14/03/2025
Suppression of climate data built up by decades of hard working scientists dedicated to measuring and understanding planetary health. Removing facilities that measure climate change will not change US exposure to its catastrophic consequences 🔥🌀🌊🌪️
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