Christopher Somes

I'm able to make this animation of how the ocean breathes in and out CO₂ because of data collected by NOAA scientists, data served at NOAA websites, and tools provided by NASA. All are under threat of being dismantled by the Trump administration.

Postdoc position available studying the biological carbon pump within Jan Taucher's team at GEOMAR
🌊

www.geomar.de/en/karriere/...

Overview of oxygen “stage” nomenclature used in this review. From top to bottom shows the ranges most often associated with the descriptive terms OMZ, oxygen-deficient zone (ODZ), anoxia, dysoxia/hypoxia, and anoxia in seawater. Oxygen concentrations are shown on a log-linear scale along with a simplified schematic of several proxy-relevant components of other redox-sensitive reactions. Chemical concentrations other than oxygen are non-dimensional, but all relate to scales. The redox ladder is modified from Canfield and Thamdrup (2009).

#WeekendReading: Hoogakker (and 67 other people) go into the current state of low-oxygen proxies currently in use in paleoceanography. It's a small book (95 pages), more than a paper, and covers a lot. 🧪⚒️
bg.copernicus.org/articles/22/...

OSU is hiring! Come work at CEOAS - Open rank faculty position and director of the Oregon State Stable Isotope Laboratory. My network is small on Bluesky, please share widely! Reach out if you have questions about living in Corvallis or about CEOAS specifically.

jobs.oregonstate.edu/postings/165...

Last Tuesday, I was set to give a talk on 'climate change in the Northeast' at a retirement home but had to cancel due to hourly job threats.

After nearly two weeks of overwhelming uncertainty, today it happened. I was fired from my dream of working at NOAA. I'm so sorry to everyone also affected.

I’m a federal employee, a research meteorologist at a NOAA lab (OAR-NSSL). I still have my job tonight. Many of my NOAA colleagues and many more of my fellow civil servants don’t. I want to share what people like me do. Instead of doomscrolling, maybe we can learn what civil service looks like.

Delighted to see this paper with collaborators and friends out 🌊

We delve into whether or not remote sensing data can help discriminate amongst the (very) divergent projections of ocean productivity changes from climate models. Should we treat all members of the ensemble equally?

Check it out!

Projecting atmospheric N2O rise until the end of the 21st century: an Earth System Model study - IOPscienceSearch Projecting atmospheric N2O rise until the end of the 21st century: an Earth System Model study, M De Sisto, C Somes, A Landolfi, A H MacDougall

Check out our new study led by Makcim De Sisto, in which we coupled our land and marine N2O modules via the atmosphere to prognostically project atmospheric N2O into the future

iopscience.iop.org/article/10.1...

Researching ocean storage of carbon and heat? Considering to attend EGU25 (27 April – 2 May 2025)?

Submit an abstract to our session:
"Ocean storage and loss of carbon and heat, and relevance for climate":
meetingorganizer.copernicus.org/EGU25/sessio...

Looking forward to discussing at EGU25!

New starter pack for organisations involved in ocean science in some way. 🌊🧪

I’ll be adding more as they start opening accounts on here.

Let me know which ones I have missed!

go.bsky.app/U1Ei6XY

Hi folks! Check out this starter pack that we created to find folks in oceanography (including marine microbiology, biogeochemistry, modeling, 'omics, and more). Please reply to this post if you would like to be added to the starter pack. Thanks!
go.bsky.app/KaUvLwp

I'd like to be added, thanks!

So, is anyone interested in and wants to follow people doing marine biogeochemistry?
I might have a starter pack for you!
(also, I blame @malinodalen.bsky.social for this)
bsky.app/starter-pack...

Spot anyone not there (maybe you?), say something.

Global impact of benthic denitrification on marine N2 fixation and primary production simulated by a variable-stoichiometry Earth system model Abstract. Nitrogen (N) is a crucial limiting nutrient for phytoplankton growth in the ocean. The main source of bioavailable N in the ocean is delivered by N2-fixing diazotrophs in the surface layer. ...

Congrats to Na Li on her first paper, reminding us not to forget about the benthos when assessing N2 fixation and the global marine nitrogen cycle

bg.copernicus.org/articles/21/...

When to add a new process to a model – and when not: A marine biogeochemical perspective Models are critical tools for environmental science. They allow us to examine the limits of what we think we know and to project that knowledge into s…

How do YOU decide when to add a new process to a model? This was a fun exercise 🌊https://www.sciencedirect.com/science/article/pii/S0304380024002588

I made a list of marine scientists and oceanographic institutions here for the Oceanography feed. It looks like many people tried Bluesky but then gave up months ago, when it was still quiet. How do we get them back? 🌊

Open PostDoc Position in Paleoceanography and Marine Geology at the Institute of Geosciences, Kiel University #SouthernOcean #CarbonCycle #GlacialInterglacialClimateVariability. Please distribute or get in touch if you have questions. Deadline July 15! www.uni-kiel.de/personal/de/...

Check out our new PAGES working group on Past Ocean Oxygenation

pastglobalchanges.org/science/wg/p...

Introducing a new PAGES working group: Past Ocean Oxygenation
PO2 | PAGES (pastglobalchanges.org)

Focus on Biological Processes Does Not Capture the Whole Picture January 10, 2024/Kiel. The ocean plays a crucial role in the storage of carbon dioxide (CO2). The so-called marine biological carbon pump is an important research topic in this context. However, accor...

In a new opinion paper, GEOMAR climate researcher Ivy Frenger and international colleagues call for a comprehensive view of the marine biological carbon pump: www.geomar.de/en/news/arti...

Attention marine carbon-13 isotope enthusiasts! I recently completed a big update to our expanding global marine 𝛅13C-POC dataset on doi.org/10.1594/PANG... via
@PANGAEAdataPubl
. It has been a big effort from Maria-Theresia and me so please check it out, RT, and use it!