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
🌊with the wave
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
#argofloats #oneargo
November 25, 2025 at 6:11 AM
🌊with the wave
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
#argofloats #oneargo
November 25, 2025 at 6:07 AM
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
#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
November 19, 2025 at 4:57 AM
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
🌊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
But more..
@globaloceanbgc.bsky.social floats. @mbarinews.bsky.social
October 4, 2025 at 12:45 AM
🌊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
But more..
@globaloceanbgc.bsky.social floats. @mbarinews.bsky.social
Reposted by Ken Johnson
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-...
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.
www.mbari.org
August 26, 2025 at 4:02 PM
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-...
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-...
🌊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
@mbarinews.bsky.social @soccomproject.bsky.social @bgc-argo.bsky.social
August 12, 2025 at 11:06 PM
🌊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
@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
August 2, 2025 at 4:14 AM
🌊 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
🌊Float of the Month. The BGC-Argo array in May 2025! With ships, it took decades to collect the data to visualize the chemistry and biology of the ocean interior. Now we can do it monthly, realtime, quality controlled. Access is easy with webODV. This is going to change things! #UNOC3 #OneArgo
June 5, 2025 at 2:36 AM
Reposted by Ken Johnson
🌊 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...
@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...
www.ifremer.fr
June 2, 2025 at 1:12 PM
🌊 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...
@cnrs.fr @euro-argo.eu
www.ifremer.fr/en/espace-pr...
Reposted by Ken Johnson
👿 NSF in Turmoil: Radical Reorganization, Removal of Directors, Forced Layoffs
🧪
Follows take over by DOGE
#SaveNSF
science.org
🧪
Follows take over by DOGE
#SaveNSF
science.org
🚨 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
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
Exclusive: NSF faces radical shake-up as officials abolish its 37 divisions
Changes seen as a response to presidential directives on what research to fund
www.science.org
May 9, 2025 at 2:29 AM
👿 NSF in Turmoil: Radical Reorganization, Removal of Directors, Forced Layoffs
🧪
Follows take over by DOGE
#SaveNSF
science.org
🧪
Follows take over by DOGE
#SaveNSF
science.org
Reposted by Ken Johnson
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...
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.
www.mbari.org
April 3, 2025 at 6:10 PM
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...
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...
Reposted by Ken Johnson
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
🌊
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
🌊
March 22, 2025 at 8:45 PM
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
🌊
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
🌊
🌊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
March 10, 2025 at 3:51 AM
🌊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
Reposted by Ken Johnson
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
February 25, 2025 at 6:14 PM
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
February 3, 2025 at 2:38 PM
🌊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
Reposted by Ken Johnson
The demo is based on this video: www.youtube.com/watch?v=eZzp...
The Atlantic Meridional Overturning
YouTube video by OceanClimateAtUoL
www.youtube.com
January 12, 2025 at 12:23 AM
The demo is based on this video: www.youtube.com/watch?v=eZzp...
🌊🧪@bgc-argo.bsky.social Float of the Month. WMO 7900823 deployed nearly 80 south in the Ross Sea has done 2 years under ice. Here's the data plot (all data freely available @soccomproject.bsky.social). No bloom this year! Too much ice melt, no deep mixing, and no iron to feed plankton - IMO.
January 11, 2025 at 1:16 AM
🌊🧪@bgc-argo.bsky.social Float of the Month. WMO 7900823 deployed nearly 80 south in the Ross Sea has done 2 years under ice. Here's the data plot (all data freely available @soccomproject.bsky.social). No bloom this year! Too much ice melt, no deep mixing, and no iron to feed plankton - IMO.
It’s 10 days into the new year & @globaloceanbgc.bsky.social & @soccomproject.bsky.social have already deployed 10 new @bgc-argo.bsky.social profiling floats. 410 in the water, 70 with chem & 332 have chem/bio sensors - O2, pH, NO3, & bio-optics. They sample the upper 2 km
every 10 days. 🌊⛴️🌡🧪
every 10 days. 🌊⛴️🌡🧪
January 10, 2025 at 11:06 PM
It’s 10 days into the new year & @globaloceanbgc.bsky.social & @soccomproject.bsky.social have already deployed 10 new @bgc-argo.bsky.social profiling floats. 410 in the water, 70 with chem & 332 have chem/bio sensors - O2, pH, NO3, & bio-optics. They sample the upper 2 km
every 10 days. 🌊⛴️🌡🧪
every 10 days. 🌊⛴️🌡🧪
Almost historical. I created the Periodic Table of Elements in the Ocean back in 1998 with my son, then age 14 who wrote the JavaScript, and daughter age 12 who chased down all references in the MLML library, to figure out how we could use the internet. Nice to see it in use. #mbari #globaloceanbgc
What do #MarineChemists and #chemical #oceanographers actually do? 🌊🧪
We measure elements in the ocean. Yes, the same ones you see on the #periodic table (check out: www.mbari.org/know-your-oc...)! These measurements tell us how the ocean works and supports life. Another🧵
We measure elements in the ocean. Yes, the same ones you see on the #periodic table (check out: www.mbari.org/know-your-oc...)! These measurements tell us how the ocean works and supports life. Another🧵
January 9, 2025 at 5:58 AM
Almost historical. I created the Periodic Table of Elements in the Ocean back in 1998 with my son, then age 14 who wrote the JavaScript, and daughter age 12 who chased down all references in the MLML library, to figure out how we could use the internet. Nice to see it in use. #mbari #globaloceanbgc
🌊 Forgot the wave
Happy Holidays from the SOCCOM (soccom.princeton.edu) and GO-BGC (go-bgc.org) projects. The present under the tree? 115 BGC-Argo profiling floats deployed this year and more at sea. All data freely available.
Thanks to all the folks who made this happen and the US NSF for their support.
Thanks to all the folks who made this happen and the US NSF for their support.
December 21, 2024 at 1:07 AM
🌊 Forgot the wave
Reposted by Ken Johnson
Happy Holidays from the SOCCOM (soccom.princeton.edu) and GO-BGC (go-bgc.org) projects. The present under the tree? 115 BGC-Argo profiling floats deployed this year and more at sea. All data freely available.
Thanks to all the folks who made this happen and the US NSF for their support.
Thanks to all the folks who made this happen and the US NSF for their support.
December 21, 2024 at 1:06 AM
Happy Holidays from the SOCCOM (soccom.princeton.edu) and GO-BGC (go-bgc.org) projects. The present under the tree? 115 BGC-Argo profiling floats deployed this year and more at sea. All data freely available.
Thanks to all the folks who made this happen and the US NSF for their support.
Thanks to all the folks who made this happen and the US NSF for their support.
Happy Holidays from the SOCCOM (soccom.princeton.edu) and GO-BGC (go-bgc.org) projects. The present under the tree? 115 BGC-Argo profiling floats deployed this year and more at sea. All data freely available.
Thanks to all the folks who made this happen and the US NSF for their support.
Thanks to all the folks who made this happen and the US NSF for their support.
December 21, 2024 at 1:06 AM
Happy Holidays from the SOCCOM (soccom.princeton.edu) and GO-BGC (go-bgc.org) projects. The present under the tree? 115 BGC-Argo profiling floats deployed this year and more at sea. All data freely available.
Thanks to all the folks who made this happen and the US NSF for their support.
Thanks to all the folks who made this happen and the US NSF for their support.
Reposted by Ken Johnson
This is the first in an occasional series on ‘older ocean science papers you should read’.
Ever wonder why cans no longer have Pb soldered seams? In 1980, Settle and Patterson used methods developed to measure Pb in seawater and measured lead in canned tuna. In Science (tinyurl.com/y4z83z8j), 1/4
Ever wonder why cans no longer have Pb soldered seams? In 1980, Settle and Patterson used methods developed to measure Pb in seawater and measured lead in canned tuna. In Science (tinyurl.com/y4z83z8j), 1/4
November 26, 2024 at 3:56 AM
This is the first in an occasional series on ‘older ocean science papers you should read’.
Ever wonder why cans no longer have Pb soldered seams? In 1980, Settle and Patterson used methods developed to measure Pb in seawater and measured lead in canned tuna. In Science (tinyurl.com/y4z83z8j), 1/4
Ever wonder why cans no longer have Pb soldered seams? In 1980, Settle and Patterson used methods developed to measure Pb in seawater and measured lead in canned tuna. In Science (tinyurl.com/y4z83z8j), 1/4
This is the first in an occasional series on ‘older ocean science papers you should read’.
Ever wonder why cans no longer have Pb soldered seams? In 1980, Settle and Patterson used methods developed to measure Pb in seawater and measured lead in canned tuna. In Science (tinyurl.com/y4z83z8j), 1/4
Ever wonder why cans no longer have Pb soldered seams? In 1980, Settle and Patterson used methods developed to measure Pb in seawater and measured lead in canned tuna. In Science (tinyurl.com/y4z83z8j), 1/4
November 26, 2024 at 3:56 AM
This is the first in an occasional series on ‘older ocean science papers you should read’.
Ever wonder why cans no longer have Pb soldered seams? In 1980, Settle and Patterson used methods developed to measure Pb in seawater and measured lead in canned tuna. In Science (tinyurl.com/y4z83z8j), 1/4
Ever wonder why cans no longer have Pb soldered seams? In 1980, Settle and Patterson used methods developed to measure Pb in seawater and measured lead in canned tuna. In Science (tinyurl.com/y4z83z8j), 1/4
Thank you Sonne. They are currently at sea on a Geotraces cruise in the Indian Ocean, Eric Achterberg Chief Sci. There are 7 GO-BGC (go-bgc.org) profiling floats on board and 3 already launched (7902123, -24, -25). We very much appreciate their help deploying floats.
November 18, 2024 at 5:23 PM
Thank you Sonne. They are currently at sea on a Geotraces cruise in the Indian Ocean, Eric Achterberg Chief Sci. There are 7 GO-BGC (go-bgc.org) profiling floats on board and 3 already launched (7902123, -24, -25). We very much appreciate their help deploying floats.