Ken Johnson
@montereyken.bsky.social
Ocean scientist building a global biogeochemical sensor array to observe ocean health and changes in chemical cycling. http://soccom.org, https://go-bgc.org
Sad to learn from a round mail that UC Davis' stable isotope facility (SIF) is shutting down. This place and its excellent staff have been of incredible service to biogeoscience and ecology around the globe, making isotope analysis accessible and affordable. This is a bummer. 🌊🦑🧪
@soccomproject.bsky.social @bgc-argo.bsky.social @globaloceanbgc.bsky.social 🌊The commentary by Dove et al (bit.ly/4fd2whZ) on the future of Argo comes at a critical moment for US Argo. GO-BGC, the major US BGC-Argo project funded by NSF completes all float deployments in 3 months. 1/3
I'm proud to announce a commentary from the Phenomena, Observations, and Synthesis panel of @usclivar.bsky.social about the necessity of the Argo program. 🌊 🧪 You can check it out here: doi.org/10.5670/ocea...
🌊 A BGC-Argo/El Niño update from @globaloceanbgc.bsky.social & @bgc-argo.bsky.social. El Niño is on. Temp. is over 30C along the equator between 180 and 150W. Ocean pCO2 has dropped below atmospheric. Nitrate is zero and plankton/chlorophyll are crashing as they run out of fertilizer when.... 1/2
🌊 @globaloceanbgc.bsky.social GO-BGC float of the month. El Niño is coming. The 2023/24 event is clear in the @bgc-argo.bsky.social record. The white, 29C contour outlines anomalies in pCO2, NO3, chlorophyll and particulate organic carbon. Those white contours are emerging again. Stay tuned.
🌊
Ken Johnson@montereyken.bsky.social · 3mo agoA sad day. Jorge Sarmiento, one of the greats in ocean science, passed away today. Jorge was a model leader; thoughtful, compassionate, and an excellent scientist. His leadership of @soccomproject.bsky.social transformed @bgc-argo.bsky.social into a global system.
A sad day. Jorge Sarmiento, one of the greats in ocean science, passed away today. Jorge was a model leader; thoughtful, compassionate, and an excellent scientist. His leadership of @soccomproject.bsky.social transformed @bgc-argo.bsky.social into a global system.
Best job in ocean science and engineering, and I have one!
MBARI@mbarinews.bsky.social · 3mo agoWe're celebrating our inner space and MBARI's birthday today! 🎂🎉 For 39 years, MBARI has been exploring the stunning community of life that thrives deep beneath the ocean’s surface. Thanks for following along on this incredible journey here on social and beyond!
We're celebrating our inner space and MBARI's birthday today! 🎂🎉 For 39 years, MBARI has been exploring the stunning community of life that thrives deep beneath the ocean’s surface. Thanks for following along on this incredible journey here on social and beyond!
🧪📍🌊 🦑🍎 using GO-BGC data to reveal trends in nitrogen cycling in oxygen deficient zones www.mbari.org/news/mbari-t...
MBARI technology provides new insight into hidden ocean chemistry • MBARI
New research led by the University of Miami Rosenstiel School of Marine, Atmospheric, and Earth Science has found that nitrogen cycling in marine oxygen-deficient zones is far more dynamic than previo...
mbari.org
🌊cool article by Mari Bif on how science comes to fruition. And I'm in with my brother!
Eos@eos.org · 5mo agoTo predict how oxygen-depleted areas of the ocean will evolve, scientists must observe the invisible chemistry that drives them, writes Mariana Bif @miamirosenstiel.bsky.social (and formerly at @mbarinews.bsky.social). eos.org/science-upda...
April 2026 National Academies hybrid workshop on exploring the future of @bgc-argo.bsky.social @globaloceanbgc.bsky.social - learn more here: tinyurl.com/4985e7zx 🌊
Surface ocean processes impact structure deep into the ocean interior. In our perspective paper, @maratimes.bsky.social, grad student Katarina Merk, and I discuss using physical perspectives to interpret subsurface biogeochemical distributions and why we as a community should care! 🌊
Physical controls on heterogeneous mesopelagic biogeochemistry
Communications Earth & Environment - A patchy distribution of biogeochemical properties in the ocean interior arises from the combined influence of biological and physical processes.
rdcu.be
🌊BGC-Argo float of the month is 5906497 with 4 years under Antarctic sea ice, just popped out. It was adopted by the American School in Jeddah, Saudi Arabia and named “Hedy Lamarr” – the actress who co-invented and patented frequency hopping communications. Named for her science contribution. 1/2
Home for the next few weeks. Gotta say, Tahiti is a funny place to board an icebreaker! 🌊⛴️
🌊with the wave
Ken Johnson@montereyken.bsky.social · 8mo agoWhat's interesting as the Thanksgiving Holiday arrives? The first @bgc-argo.bsky.social profiling floats begin to emerge from under Antarctic sea ice each year. Float 5905383 is the first @soccomproject.bsky.social float for 2025/26. It has spent 7.9 years operating under ice. #argofloats #oneargo
What's interesting as the Thanksgiving Holiday arrives? The first @bgc-argo.bsky.social profiling floats begin to emerge from under Antarctic sea ice each year. Float 5905383 is the first @soccomproject.bsky.social float for 2025/26. It has spent 7.9 years operating under ice. #argofloats #oneargo
And I thought we made a lot of @bgc-argo.bsky.social profiling floats!!!! We're going to have to work harder. @globaloceanbgc.bsky.social @soccomproject.bsky.social
Seth Bushinsky@sethbushinsky.bsky.social · 9mo agoSorry to everyone whose manuscripts / prospectuses I'm late commenting on, but there was some important float manufacturing to do... 🌊 #argo #oneargo #argofloats
🌊BGC-Argo float of the month is a sensor, not a float. Bif and Johnson (GBC; doi/10.1029/2024GB008473) show that the concentration of nitrite can be extracted from the UV spectra of ISUS or SUNA nitrate sensors. But more.. @globaloceanbgc.bsky.social floats. @mbarinews.bsky.social
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-...
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.
mbari.org
🌊The Southern Ocean is warming, is productivity changing? New paper by Liniger et al. uses the nitrate sensors on 274 SOCCOM/BGC-Argo floats to compute annual NCP. It has increased significantly over the past two decades. @mbarinews.bsky.social @soccomproject.bsky.social @bgc-argo.bsky.social
🌊 BGC-Argo float of the month. The 300th float of the GO-BGC project was launched in the S Atlantic. Funded by the US NSF, these floats provide essential observations of ocean metabolism - productivity, oxygen, pH... @bgc-argo.bsky.social @globaloceanbgc.bsky.social #OneArgo #Argo
🌊 As the #UNOC3 gets underway, the international community is calling for increased support for #OneArgo, a key phase of the #Argo program, which is essential for monitoring the ocean and addressing climate challenges. @cnrs.fr @euro-argo.eu www.ifremer.fr/en/espace-pr...
Ocean monitoring: an international call to urgently strengthen the Argo program
As the 3rd United Nations Ocean Conference (UNOC3) gets underway, the international community is drawing attention to the pivotal role of the Argo ocean observing program, as featured in a recent arti...
ifremer.fr
👿 NSF in Turmoil: Radical Reorganization, Removal of Directors, Forced Layoffs 🧪 Follows take over by DOGE #SaveNSF science.org
Dr. David Miller 🏳️🌈@davidimiller.bsky.social · last yr.🚨 Breaking: NSF faces radical shake-up as officials abolish its 37 divisions 1️⃣ Removes/demotes division director leaders 2️⃣ Forced layoff notices to NSF staff going out tonight 3️⃣ More grant terminations expected tomorrow One glimmer of hope: the 8 directorates appear to be staying
Welcome our newest addition to the fleet! ⛴️ We're excited to announce the arrival of our new flagship vessel, R/V David Packard, at our headquarters in Moss Landing, California. This state-of-the-art ship will expand our capacity for ocean exploration. Learn more: www.mbari.org/news/mbari-e...
MBARI expands capacity for ocean research with new state-of-the-art ship • MBARI
MBARI’s marine operations team begins preparations for science missions aboard our new flagship research vessel David Packard later this year.
mbari.org
So, speaking of Universities caving to government demands and people bringing up loyalty oaths, here's a story that involves a well known oceanographer. In 1935 Massachusetts enacted a law that required teachers in public and private schools to take a loyalty oath to teach in the state 1/n 🌊
Massachusetts Teachers' Oath - Wikipedia
en.wikipedia.org
🌊Float of the Month, 5906440 (@globaloceanbgc.bsky.social @bgc-argo.bsky.social). Drifting north for 4 years, it shows the evolution of the bio. response to ocean phys. At low latitudes, warm water does not mix deep enough (Mixed Layer Depth, black line on NO3 plot) to bring NO3 to the surface. 1/2
Protecting the ocean has always been a bipartisan effort, in Congress and across multiple White House administrations. In the face of ill-conceived attacks on @noaa.gov, it's time to raise our voices. My thoughts in defense of NOAA and #OceanScience: mbayaq.co/4k8vEsx
🌊MBARIs @mbarinews.bsky.social new research vessel, R/V David Packard, has left Vigo Spain to come home. Its first science mission, deploy @bgc-argo.bsky.social floats across the Atlantic and up the Pacific. First O2 float in for @argogermany.bsky.social. More for @globaloceanbgc.bsky.social
