OceanCarbon&Biogeochemistry

OCB will support participation in Cornell Summer Satellite Remote Sensing Workshop

OCB will support participation in Cornell Summer Satellite Remote Sensing Workshop June 1 – June 12, 2026, Cornell University, Ithaca New York The Cornell Summer Satellite Remote Sensing Workshop is being offered once again this year. The workshop is highly methods-oriented and intended to give participants the practical skills needed to work independently to acquire, analyze and visualize large data […]

April 23 – first SedMIP webinar

→Learn more about benthic modeling activities during the first SedMIP webinar on April 23 at 3pm – join us for a recap + summary of key points raised at the OSM26 town hall, intro to model inventory and model participation, and ways to get involved in this activity, we also are seeking speakers for this […]

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EXTENDED Nominations for new OCB Subcommittee Ocean Carbonate System Intercomparison Forum (OCSIF)

We are currently seeking nominations for members of a newly established OCSIF topical subcommittee of the OCB SSC – the Ocean Carbonate System Intercomparison Forum (OCSIF). This subcommittee has its origins in the OCB OCSIF working group focused on identifying and addressing uncertainties in the seawater carbonate system and increasing measurement inter-comparability, with goals of […]

OPO WG Bigelow August 2023 Meeting IMG_7748

New pub from the Operational Phytoplankton Observations Working Group!

New publication from the Operational Phytoplankton Observations (OPO) Working Group! Citation: Clayton, S., Neeley, A., Poulton, N., et al., (2026) Operational Phytoplankton Observations Best Practices: a guide for using imaging technologies for routine monitoring of phytoplankton communities. Version 1.0.0. Woods Hole, MA, Ocean Carbon and Biogeochemistry Program, Operational Phytoplankton Observations Working Group, 96pp. DOI: https://doi.org/10.25607/OBP-2059 […]

Metabarcoding Intercal webinar April 9

Join us for the first Metabarcoding Intercal webinar on April 9 at 12PM ET / 9AM PT to hear from Dr. Felix Milke, University of Oldenburg, Biogeography of Microbial Cohorts in the Global Oceans Dr. Mahwash Jamy, Uppsala University, Opportunities and Challenges in Long‑Read Metabarcoding for Ecology and Evolution — This new activity has just […]

Coastal Subject Matter Experts micro-survey

Input requested for COASTAL (essentially 100km of shoreline – including inland estuarine areas) Gap Analysis Discussion Groups. This is best effort voluntary work through end of 2026. Anyone can participate, but it is being coordinated by COAST-VC for CEOS. We invite subject matter experts to give input to the 2026 CEOS-wide Coastal Gap Analysis activity. […]

GO-BGC Float Data Workshop in August 2026

SAVE THE DATE! The Global Ocean Biogeochemistry Array (GO-BGC) program will be hosting a Float Data workshop on August 17-21, 2026 at the University of Washington, Seattle, USA. The workshop will be a Hack-a-thon type workshop, where small groups will pursue a scientific question/objective using BGC-Argo data. This workshop will include a combination of an overview […]

New Activity: SedMIP

A new OCB activity is underway: SedMIP: Sediment Biogeochemistry Model Intercomparison Project. Learn more and participate in this collaborative effort to systematically evaluate and improve benthic biogeochemical models: Attend the Town Hall at OSM26: TH23A: Advancing Benthic Modeling: Introducing SedBGC_MIP, a Community-Driven Model Intercomparison Initiative TUESDAY, February 24, 12:45-1:45p GMT in Hall3. The Abyss – […]

Recent Science Highlights

Improving our view of particle attenuation in the Southern Ocean with BGC-Argo floats

How much organic carbon is actually transported to depth in the Southern Ocean and what are the mechanisms driving seasonal and regional variability? With large-scale remote sensing observations constrained to the surface and the depth-resolved ship-based measurements being scarce, the emergence of the BGC-Argo fleet has opened up a new avenue to explore how carbon […]

New unified interface for existing ocean carbonate chemistry data products

The paper provides a comprehensive synthesis of 68 existing ocean carbonate chemistry data products and data product sets, including cruise-based compilations, time-series datasets, gap-filled observational products, and model-based reconstructions. The authors highlight the diversity of available products, noting differences in spatial coverage, temporal resolution, methodologies, and intended scientific applications. By systematically cataloguing and comparing these […]

How much carbon do fish move towards the seafloor as they feed and migrate in the water column?

Ocean organisms transfer carbon via many natural processes from surface to seafloor. These include the passive sinking of carbon-rich particles and the active transport of carbon as animals swim downward. A recent study in GBC modeled how carbon stored in fish biomass moves from the sea surface to the seafloor in shelf–slope–abyssal systems through feeding […]

The ocean is the largest natural carbon sink for atmospheric CO2

Only about half of human-made CO2 emissions remain in the atmosphere and drive global warming. The other half has so far been said to be taken up in roughly equal amounts by the biosphere on land and by physical-chemical processes in the ocean. In equal amounts? In a new assessment, Friedlingstein et al. reassess the […]

A heat burp breaks the assumed relationship of cumulative CO2 emissions and warming

The ocean stores vast amounts of heat and carbon under anthropogenic CO₂ emissions, but its behavior under net-negative emission scenarios remains poorly understood. Here we use an Earth System Model of intermediate complexity and show results of an idealized future climate scenario that includes sustained net-negative emissions over centuries. After gradual global cooling, the model […]

A Microbial Conveyor Belt Beneath the South Pacific

Global overturning circulation is a planetary conveyor belt: dense waters sink around Antarctica, spread through the deep ocean for centuries, and eventually rise elsewhere, redistributing heat, nutrients, and carbon. But how does this slow, pervasive movement of water impact marine microbes? To find out, researchers collected over 300 water samples spanning the full depth […]

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