Ahmad J Khattak

Computational scientist/hydrologist; Multiscale Modeler; Permafrost; National Water Model

[Ahmad J Khattak @_ajkhattak]

Looking for a new challenger in Head Ball 2. My player name is player632602501, come and play with me! Download via > https://t.co/6kc4X4zye0 #headball2 @HB2Official

[Ahmad J Khattak @_ajkhattak]

suggesting its representation in Earth System Models may not be imperative.

Read more about our work
https://t.co/rdAyqnuF6s

#Arctic #tundra #permafrost
#thermokarst #subsidence

[Ahmad J Khattak @_ajkhattak]

New paper! Limited control of microtopography evolution on ground subsidence in polygonal tundra landscapes published in Science of The Total Environment.

Key finding: The evolution of microtopography in ice-wedge polygons does not accelerate/decelerate ground subsidence rates

[Ahmad J Khattak @_ajkhattak]

Our paper, recently published in #NatureComms led by AlexHamm, presents exciting findings regarding the impact of heavy rainfall on Arctic permafrost regions.

#continentality #permafrost #arctic #cooling #warming #rainfall #heavyrain

https://t.co/K4Ey2TZUEv

[Mehdi Hasan @mehdirhasan]

Imran Khan: Pakistan's Supreme Court rules arrest was illegal - BBC News https://t.co/O6sTnZY6KA

[Mehdi Hasan @mehdirhasan]

“It is time for the US to speak up about the arrest of Imran Khan” says ⁦@OborneTweets⁩ https://t.co/wnjyrEc3U6

[Mehdi Hasan @mehdirhasan]

What’s happening right now in Pakistan is truly scary. Don’t forget, Pakistan is a nuclear power. And Imran Khan won the last election. It’s a tinderbox.

[ORNL Biology and Environment @ORNLBio_Env]

.@ORNL scientists created a high-performance computer simulation of the Arctic tundra and found that the gradual sinking of the land surface as the #climate warms is unlikely to cause rampant thawing in the future.

https://t.co/9MtAETVmNt

[Ahmad J Khattak @_ajkhattak]

Our new paper on the mechanistic representation of #biogeochemistry in #stream #hyporheic zone is out now. #rivernetworks #watershed #multiscalemodels
https://t.co/ihn1GZPzA3

[DOE Office of Science @doescience]

A warming climate doesn't seem like it should result in colder streams, but that's what's happening in the Arctic. Research @ORNL, @NatlParkService & @USGS shows thawing permafrost is pushing groundwater deeper, keeping it colder until it feeds streams: https://t.co/qHkY5bVgmg

[Ylva Sjöberg @SjobergYlva]

So exciting that @AGU_Eos highlights our new paper on temperatures of headwater streams in Alaska. Still a lot more to learn about streams in changing permafrost regions! @jon_a_odonnell @USGS_Alaska @ORNL @science_ku @theAGU #AGUpubs https://t.co/GL9rxsWph9

[Ahmad J Khattak @_ajkhattak]

Our latest field observations and modeling studies show as Arctic warms and permafrost thaws, streams may become cooler. @PYRN_official @ipapermafrost
https://t.co/gGKVm6ke1N

[Not so Exhausted Anymore, Ph.D. @PhdExhausted]

I'll relax once I submit this paper.
I'll relax once I submit my thesis.
I'll relax once I defend my thesis.
I'll relax after I get a post-doc.
Damn! I guess I'll have to relax after I get a permanent position.

No. The future always gets busier.
Schedule proper breaks NOW. 💛

[@grosseguido.bsky.social @grosse_guido]

AWI is hiring >30 new PhD and Postdoc positions in its new INSPIRES program: https://t.co/DwLpQVRSET. Good place to start a career in Climate, Geoscience, Coastal systems, Arctic ecosystems, permafrost, Marine and polar life, Marine bioeconomy, or Marine data science. @AWI_Media

[Oak Ridge Lab @ORNL]

Four ORNL technologies win @RD100Awards. 👏

🏆 🏆 🏆 🏆

Read about this year's recipients ➡️ https://t.co/h04gFFWxzE

[Ahmad J Khattak @_ajkhattak]

Our Amanzi-ATS team won 2020 R&D100 award (known as the Oscars of innovation) for developing a power simulation software to study complex environmental systems.
#RD100Awards #RandDWorld #innovation #RD100 https://t.co/y98LVLKzHK