#paleoclimate — Public Fediverse posts

Still haven't gotten around comprehending how to convert a lat-lon grid with ice thickness to a correct regional sum of freshwater amount in Gt.

But something else keeps popping up in my head now.
Peltier's ice model / reconstruction (dunno which it is) doesn't include sea ice at all https://www.atmosp.physics.utoronto.ca/~peltier/data.php

Tarasov's GLAC1D model does. https://doi.org/10.5281/zenodo.10159104
At least the melted parts of sea ice is included. But not the ever-lasting part.

That ever-lasting part is melting today, and has been melting for a long while now. But it didn't melt during past AMOC hickups. What melted back then was ice that covered Scotland with a whopping 400m ice wall. And higher ice mountains still melted in other regions. But not sea ice in the Arctic ocean.

...hm. What I really want to know is how the amount of freshwater influx back then
compares to the amount today, and how today's very little left-over ice would be capable of stopping AMOC.

We'll be having a blue Arctic ocean before 2030, says a new study https://www.ft.com/content/63fbcf2b-9acc-4ccb-ac12-9f3b78e85b68

https://www.nature.com/articles/s41467-024-54508-3 #Heuze and #Jahn 2024, "The first ice-free day in the Arctic Ocean could occur before 2030" #openaccess 💃

Wouldn't it be cool to know by then how much ice in kilos or Gt melted ? And how that amount compares to the amount before previous AMOC shutdowns during the LGM and deglaciasation?

#paleoclimate #sealevelrise #GlacierMelt #AMOC #seaice #Arctic

Happily, AQUA plans to run our mentoring program again in 2024. If you are a Quaternary scientist working in Australasia and interested in being either a mentor or mentee, please check out all the details here:

https://aqua.org.au/2024-mentoring-program/

Please feel free to share with colleagues and students who may be interested.

#AusQuaternary #Quaternary #paleoenvironment #paleoclimate #academia

I’m recruiting MSc/PhD students to join my lab at #ClemsonUniversity in Fall ‘23! If you’re interested in #paleotempestology (#prehistoric #hurricanes), the hydro side of #paleoclimate, and/or records of #coastal or #hydrological #hazards, get in touch! We use multiple proxies, primarily #sediment & #treerings, to reconstruct #extreme events in the past. There are plenty of opportunities for #fieldwork & #labwork. If you’re going to #AGU22 & want to chat about this, let me know & we’ll meet up!