Daniel Sandborn

TRACE-Python: Tracer-based Rapid Anthropogenic Carbon Estimation Implemented in Python (version 1.0) Abstract. An implementation of Tracer-based Rapid Anthropogenic Carbon Estimation (TRACE), an algorithm for estimating anthropogenic carbon in the ocean, was produced using the Python coding language....

Need an observation-based open-source tool to estimate ocean anthropogenic carbon?

- Transit Time Distribution approach
- Improved accessibility & flexibility
- Updated inventories thru 2500

Our preprint is live! egusphere.copernicus.org/preprints/20...

#oceanography #oceancarbon #python

U.S. GO-SHIP is seeking to fill 6 student positions (with the CTD, LADCP, and Tracer teams) on the 2026 re-occupation of the Pacific Ocean zonal 9.5°N line P04E (Marshall Islands to Panama, ~7.5 weeks, May-July 2026). App review begins January 2

🌊⚽ Coming to Ocean Sciences Meeting '26 in Glasgow and looking for some non-science fun?

Then fill out this interest form for the second ever edition of OSM football*: forms.gle/GbjvxnhCBDVy...

Everyone's welcome, and no firm commitment required (yet 👀)

*soccer for my American friends

#OSM26

Check out our new preprint! We explain the equatorial Pacific thermocline's temperature response to climate change using a smorgasbord of modeling simulations. eartharxiv.org/repository/v...

What can #CFC concentrations in the ocean tell us about the ocean's changing #GreenhouseGas sink?

Let's talk about it at my webinar on surface ocean transient tracer saturations, October 21st 2025, 11am PDT/2pm UTC.
More details and sign up here! usgoship.ucsd.edu

#Oceanography #CO2 #OceanScience

The interplay of future emissions and geophysical uncertainties for projections of sea-level rise - Nature Climate Change Unclear emissions and ice-sheet processes drive uncertainties in future sea-level rise. The authors show that the timing of emissions reductions drives the uncertainties during the twenty-first century, but geophysical uncertainties become more important with time, especially under optimistic scenarios.

🌊 New study shows timing of CO₂ cuts is the main driver of sea-level rise variability by 2065–2075; unless Antarctic Ice Sheet tipping points are triggered…

Rapid decarbonisation + adaptation are both crucial to manage sea-level rise risks

www.nature.com/articles/s41...

Key points:

A gap-filling reconstruction of Lake Superior pCO₂ was trained on underway data.

Annual lake-air CO₂ flux alternated between net efflux and influx over 2019–2023.

Lake Superior's carbon budget demonstrated improved agreement of measured and modeled carbon fluxes.

How does #LakeSuperior interact with rising atmospheric CO₂?

Check out our paper in JGR Biogeosciences: "A Neural Network-Based Estimate of the Seasonal to Inter-Annual Variability of the Lake Superior Carbon Cycle"

doi.org/10.1029/2024...
#carbon #limnology #machinelearning

New AI approach sharpens picture of carbon export in the Southern Ocean • MBARI Applying machine learning algorithms to a trove of data collected by robotic floats has improved estimates of ocean productivity and carbon export in the Southern Ocean.

Using robots and AI to unlock the secrets of a remote ocean with @soccomproject.bsky.social 🌊🤖🌊

Applying machine learning algorithms to a trove of data collected by robotic floats has improved estimates of ocean productivity and carbon export in the Southern Ocean: www.mbari.org/news/new-ai-...

Please share with students & ECRs in your life!
U.S. GO-SHIP is looking for students to participate in the occupation of A16S. 3 positions open. Application deadline is August 28, 2025 (will remain open until filled). Details: usgoship.ucsd.edu/2025/08/04/g...

Hello, @davidho.bsky.social! I'd appreciate being added to contribute to the feed. This has been super useful to me.

GitHub - d-sandborn/pyTRACE: Tracer-based Rapid Anthropogenic Carbon Estimation (TRACE) in Python. Tracer-based Rapid Anthropogenic Carbon Estimation (TRACE) in Python. - GitHub - d-sandborn/pyTRACE: Tracer-based Rapid Anthropogenic Carbon Estimation (TRACE) in Python.

#Python version coming soon! Demo testers welcome: github.com/d-sandborn/p...

Tracer-based Rapid Anthropogenic Carbon Estimation (TRACE) Abstract. The ocean is one of the largest sinks for anthropogenic carbon dioxide (Canth) and its removal of carbon dioxide (CO2) from the atmosphere has been valued at hundreds of billions to trillion...

Our paper describing Tracer-based Rapid Anthropogenic Carbon Estimation is out in ESSD! 🌊
doi.org/10.5194/essd...
#oceanography #carbon #matlab #software

Honored to have contributed to this project led by Victoria Christensen and co. at USGS and NPS. It's already being deployed at #IsleRoyale this summer -- can't wait to see the results!

New Dreissenid risk assessment just dropped!
"Water quality-based risk assessment for zebra mussel establishment: a case study of single- and multiple-factor methods in northern temperate lakes"
doi.org/10.1080/1040...
#dreissenid #limnology

New Insights into a Blind Spot in Aquatic Carbon Dioxide Exchange - Eos Multi-annual measurements across Lake Superior indicate remarkable similarities between large lakes and ocean CO2 exchange during the ice-free season.

Honored to have our paper featured by Eos! Underway #𝑝CO₂ time series on #lakes are rare and valuable data, so I hope we see more of it soon.

eos.org/editor-highl...

Superior's CO₂ reservoir equilibrated with the atmosphere repeatedly, indicating increasing sea surface 𝘱CO₂ with rising atmospheric CO₂

Superior's CO₂ reservoir equilibrated with the atmosphere repeatedly, indicating increasing sea surface 𝘱CO₂ with rising atmospheric CO₂

The seasonal 𝘱CO₂ cycle showed competition of thermal and non-thermal drivers and spatial heterogeneity associated with riverine influence

Underway 𝘱CO₂ was measured in Lake Superior from 2019 to 2022 to form the first multi-year 𝘱CO₂ time series in the Laurentian Great Lakes

Underway pCO2 Surveys Unravel CO2 Invasion of Lake Superior From Seasonal Variability <em>Journal of Geophysical Research: Biogeosciences</em> is an AGU journal publishing papers on the biogeosciences of the Earth system and the extension of this research to planetary studies.

The 3rd chapter of my dissertation is published in the Journal of Geophysical Research: Biogeosciences! doi.org/10.1029/2023...

tl;dr -> Underway 𝘱CO₂ measurements pick out CO₂ invasion of Lake Superior from seasonal variability

A few key points...