Mark Zelinka

Atmospheric scientist studying clouds and their role in climate change at Lawrence Livermore National Lab. Views are my own.

[Mark Zelinka @mzelinka]

We just published a paper on climate sensitivity in #CMIP6 models: https://t.co/wtEE7f1fmi

Figured it was time for my first twitter thread!

[Mark Zelinka @mzelinka]

Sobering. https://t.co/AliggAdKSg

[Kathleen Schiro @kathleenschiro]

Looking for a postdoc position, or know someone who is? Interested in cloud feedbacks? @mzelinka and I are recruiting for a project focused on high cloud feedbacks funded through the DOE RGMA program. Feel free to contact us for more information. Please share! https://t.co/IlCVEtd7xO

[Mark Zelinka @mzelinka]

Thanks so much for having me!

[Illinois CliMAS @CliMAS_Illinois]

Today we welcomed Dr. Mark Zelinka from Lawrence Livermore National Laboratory (@Livermore_Lab) as the 2024-2025 Distinguished Richard and Linda Turco Lecturer

[Mark Zelinka @mzelinka]

@PauloCeppi @LeverhulmeTrust @ImperialSci @ImperialPhysics @Grantham_IC Awesome Paulo! Well deserved.

[Mark Zelinka @mzelinka]

@rupephoto @coxypm @AnuRuhanen @coxypm Can I apply for this position? :-)

[Mark Zelinka @mzelinka]

@rupephoto @coxypm @AnuRuhanen This doesn't fully answer the question posed by @coxypm since some of the cloud changes are feedback, some are due to aerosol-cloud interactions, and some are not forced at all. So it is definitely a worthwhile open research question.

[NWS Bay Area 🌉 @NWSBayArea]

Livermore broke the daily maximum temperature record of 109° set in 1905. The new record for today, July 6th is now 111°.

[Mark Zelinka @mzelinka]

#MDPI strikes again

[Mark Zelinka @mzelinka]

@AndrewIWilliams @cristiproist @PauloCeppi @Tim_AndrewsUK @YueDong35680721 @PaulJDurack @markjwebb We are also considering replacements for this experiment, if someone comes up with a good one and documents it in a manuscript. GFMIP may have this covered already...?

[Mark Zelinka @mzelinka]

@AndrewIWilliams @cristiproist @PauloCeppi @Tim_AndrewsUK @YueDong35680721 @PaulJDurack "We" being @PauloCeppi, @markjwebb, Alejandro Bodas-Salcedo, and myself

[Mark Zelinka @mzelinka]

@Tim_AndrewsUK @D_McCoy_Atmos @pochedley @PauloCeppi @doescience @LLnL

[Mark Zelinka @mzelinka]

Shout out to my co-authors Tim Myers, @D_McCoy_Atmos, @pochedley, Peter Caldwell, @PauloCeppi, Steve Klein, and Karl Taylor, without whom this would not have been possible. And of course to the RGMA program at @doescience for funding this work thru PCMDI at @LLNL

[AGU (American Geophysical Union) @theAGU]

@wileyearthspace @CSUAtmosSci @UW @Harvard @LamontEarth @ANU_Research @ourANU @altmetric @UCBerkeley @UCIrvine @MIT @NASAGoddard @EU_ScienceHub @CIMAFoundation @SMHI @metofficeUK @AGUSciPolicy 🏅Editor’s Choice Paper🏅

“Causes of Higher Climate Sensitivity in CMIP6 Models” by Zelinka et al. (2020)

https://t.co/wFBuJ0vZA2

@Livermore_Lab @CUBoulder @D_McCoy_Atmos @imperialcollege

(6/6)

[Mark Zelinka @mzelinka]

@Tim_AndrewsUK @D_McCoy_Atmos @pochedley @PauloCeppi @doescience @LLnL That is certainly true. @Tim_AndrewsUK stopped us from presenting the original Figure 3 that was "impenetrable" in his words and would have doomed the paper to obscurity.

[Mark Zelinka @mzelinka]

Thanks so much for highlighting our study!

[Dr. Suzana Camargo @SCamargo]

Celebrating the 50th anniversary of Geophysical Research Letters, we highlight the paper by @mzelinka and co-authors published in GRL in 2020.
https://t.co/Hxc5IjPhef

[Mark Zelinka @mzelinka]

@cristiproist @hausfath @benmsanderson Agreed, though my recollection was that it didn't make much difference in practice when we Haus-filtered by ECS rather than TCR

[Mark Zelinka @mzelinka]

@cristiproist @hausfath @benmsanderson One would think the link between ECS and warming around the time of doubling in a 1%/yr compounding CO2 run would be tighter than between ECS and transient warming during the recent historical period, no?

[Mark Zelinka @mzelinka]

@cristiproist @hausfath @benmsanderson I'm confused. Sherwood, Webb, et al (2020) also derived a posterior TCR range that is essentially identical to IPCC's [1.5 to 2.2K, see Table 11] but which did not rely on observed warming rates to arrive at that constraint.

[LB @looksbizarre]

How it feels to be scrolling Twitter these days: