Johanna Beckmann

Physicist @PIK_Climate, investigating Greenland's contribution to future sea level rise.

[Johanna Beckmann @JohaBeckmann]

And related to that, a pretty cool paper on the mechanism of Greenland blocking (that can lead to this extreme melt events) came out just recently: https://t.co/TxLCILKKj3

[Johanna Beckmann @JohaBeckmann]

Our(@Ricarda_Climate ) new paper is out: Future extreme melt events and their impact on the Greenland ice sheet‘s mass loss: Do they matter ?

[The Cryosphere @EGU_TC]

New research article: Effects of extreme melt events on ice flow and sea level rise of the Greenland Ice Sheet https://t.co/2gGEewN66x

[Johanna Beckmann @JohaBeckmann]

Turns out they do! Ongoing sever extreme melt events could increase SLR up to 20% in 2300 but only ice sheet simulation with a high temporal resolution (monthly ) show that.

[Lena Nicola @lena_climate]

Paper out in The Cryosphere 🎉
We revisit the temperature sensitivity of Antarctic precipitation which gives rise to simple scaling approaches in ice-sheet models. But which scaling factor should I take❓
https://t.co/7XQItVuVIg

[Arctic Basecamp @ArcticBasecamp]

🚨 BREAKING - #GREENLAND HEATWAVE FORECASTS EXTENSIVE SURFACE MELT. Expecting uncommon melt conditions 27 June 2023. Alert identified through our Pan Arctic Alert System refined by @climate_ice, Arctic Basecamp Science Advisor. MORE TO FOLLOW… Updates - https://t.co/1uGN7uDakh

[Securing Antarctica's Environmental Future @saef_arc]

Together at last!

Antarctica’s future is everyone’s future. 🌏

This group funded by @arc_gov_au are doing the #science to protect it.

Thanks to hosts @UniofAdelaide & @SAMuseum.

#SAEFHuddle

[Andrew Mackintosh ❄️ @AMacGlac]

Retreat of Brewster Glacier in New Zealand is revealing magnificent glacially-sculpted bedrock that might not have seen the light of day in thousands of years

Here I discuss these features
with expert filming by @bexparsonsking of @niwa_nz

@Monash_Science @MonashEAE @DLorrey

[Prof. Matt England @ProfMattEngland]

👉👉 Out today in @nature our new paper showing how meltwater increases around Antarctica are set to dramatically slowdown the Antarctic overturning circulation, with a potential collapse this century. https://t.co/p3au6k4zcK A🧵on how this work came about and what we found...

[Johanna Beckmann @JohaBeckmann]

Honored of being part of this important podcast from @spotify on #Eathday202. tune in : https://t.co/XdxSHCztM6

[Sarah Burch @SarahLynnBurch]

Speaking as an @IPCC_CH Lead Author, these are some of the most important new messages from the #climate report out today: (🧵)

1. For the first time we’re seeing evidence of real, sustained decreases in greenhouse gas emissions from some countries.

But take a breath because…

[Dr. Robert Rohde @RARohde]

🔥Heat wave in Antarctica, +38 °C (+68 °F) above normal.

That's not an error, or a typo.

The remote research station at Dome C recorded a temperature nearly 40 °C above normal for this time of year, beating the previous March record by a startling 20 °C.

[Johanna Beckmann @JohaBeckmann]

Klimaforschung – dein Traumjob? Find’s heraus: MINT auf Mission https://t.co/xpGHvMKVqv via @YouTube
@PIK_Klima @BMBF_Bund

[NYC Cryosphere Lab @Cryocity]

Here's the evolution of the 500hPa GPH over #Greenland during the recent extreme event ! Blocking centered over Greenland promotes the flow of warm and moist air over the ice, as in 2012 and 2019 ! thanks to @cambecc for the great tool ! @LamontEarth @EarthInstitute

[Tim Bartholomaus @TimBartholomaus]

I'm part of a paper now open for comment and review at @EGU_TC where we point out that not one of the 165 simulations of the latest, greatest, ensemble of projections for mass loss from the Greenland Ice Sheet reproduces mass loss as severe as observed for the last two decades.

[Scott Duncan @ScottDuncanWX]

Wild, wet and windy...

The jet stream will making quite a dramatic return to Europe in the coming days. Will feel more like autumn for some!

[bugspilot😶#noemotions @bugspilot]

#GulfofMexico #GulfOfMexicoFire
Das Meer brennt. Eine riesige Pipeline ist im Golf von Mexico explodiert. Als ob sie das Tor zur Hölle im Ozean auftut.
Wie löscht man nun ein brennendes Meer?

[Ricarda Lang @Ricarda_Lang]

Wir müssen Subventionen für fossile Energiegewinnung und Infrastruktur endlich beenden. #GulfofMexico

[Kai Kornhuber @KKornhuber]

Two dynamical perspectives on the NA #heatwave:

i. Anticyclonic wave breaking, forming an omega block.
ii. Amplified wave-4 in a strong, northward polar jet.

The latter might be linked to amplified land warming in NH high latitudes.
@LamontEarth @columbiaclimate @PIK_Climate

[Prof. Stefan Rahmstorf 🌏 🦣 @rahmstorf]

The heat dome over northwest America is just a part of a planetary wave number 4 pattern going around the whole northern hemisphere. I.e. 4 red areas with northward alternating with 4 blue areas with southward air flow aloft.