Posted: Fri, 01/27/2017 - 10:20

SOCCOM researchers are actively involved in efforts to develop a global biogeochemical observing system of ~1000 Argo floats equipped with SOCCOM-type biogeochemical sensors.



​Biogeochemical Argo Science & Implementation Plan 



Biogeochemical Argo website

Posted: Thu, 01/12/2017 - 11:41

A University of Washington oceanographer is chief scientist on a voyage in the waters around Antarctica as part of a major effort to monitor the Southern Ocean.

Stephen Riser, a UW professor of oceanography, embarked Dec. 24 as part of the Southern Ocean Carbon and Climate Observations and Modeling, or SOCCOM, project to collect better data about the planet’s most remote ocean.

UW Oceanographer Dropping Robotic Floats On Voyage To Antarctica

Posted: Tue, 01/10/2017 - 13:58

Greta Shum of Climate Central is reporting on a SOCCOM cruise from Punta Arenas, Chile to McMurdo Station in Antarctica. Watch her “cool” interview with Steve Riser of UW, float expert and lead SOCCOM scientist on the cruise, and see more videos on this adventure on our "SOCCOM At Sea" channel on YouTube.

Posted: Thu, 12/22/2016 - 10:32

The Southern Ocean State Estimate (SOSE) is a general circulation model that is least squares fit to all available observations to produce a physically realistic estimate of the ocean’s state. As part of SOCCOM, a version of SOSE has been developed that incorporates biogeochemistry (B-SOSE), and a solution at 1/3 degree resolution for the period 2008 - 2012 is now available at http://sose.ucsd.edu/bsose_solution_Iter105.html. B-SOSE includes the BLING biogeochemical model which represents carbon, nitrogen and oxygen cycles, and constrains this output with biogeochemical data from Argo floats, hydrographic cruises, and satellites. Extensive validation of the solution is available at at http://sose.ucsd.edu/bsose_valid.html, and the SOSE team is happy to provide any additional diagnostics upon request.

Posted: Tue, 11/29/2016 - 10:50

Ken Johnson, our associate director, is co-chair of the new international Biogeochemical Argo Program that includes SOCCOM.  Read the program’s first newsletter HERE


Posted: Thu, 11/17/2016 - 09:48

Read about SOCCOM's Year 3 plans for float deployment at the Southern Ocean Observing System (SOOS) website.SOCCOM 3 year plan

Posted: Wed, 11/16/2016 - 15:21

An article by Jeff Tollefson in the November 16 edition of Nature magazine, "How much longer can Antarctica’s hostile ocean delay global warming?," features SOCCOM researchers Joellen (leader of the SOCCOM modeling group), Ken Johnson (SOCCOM Associate Director), and Jorge Sarmiento (SOCCOM director).  

Joellen Russell wasn’t prepared for the 10-metre waves that pounded her research vessel during an expedition south of New Zealand. “It felt like the ship would be crushed each time we rolled into a mountain of water,” recalls Russell, an ocean modeller at the University of Arizona in Tucson. At one point, she was nearly carried overboard by a rogue wave.

Posted: Mon, 10/31/2016 - 14:13

AGU Fall Meeting

[Download printable version]


C21C: Variability in the Arctic and Antarctic: Sea Ice, Ocean, and Atmosphere Interactions I Posters
08:00 - 12:20
Moscone South - Poster Hall

C21C-0717 Air-sea interactions in the Southeast Pacific: Mooring, ship, and float observations
Sarah Ogle, Veronica Tamsitt, Lynne Talley, Sarah Gille, Sebastien Bigorre

C21C-0715 Wind-driven Sea-Ice Changes Intensify Subsurface Warm Water Intrusion into the West Antarctic Land Ice Front
Xichen Li, Sarah Gille, Shang-Ping Xie, David Holland, Marika Holland

Posted: Fri, 10/21/2016 - 11:43
Tuesday, October 25th at 2:30 pm ET / 11:30 am PT
​(Do some technical difficulties, the recording of this event is not yet available)


At no time has a clear picture of our oceans' health been more important than now, as the international agreement reached in Paris to limit and reduce our carbon emissions goes into effect November 4.

That picture is coming into greater focus as scientists studying the Southern Ocean through the NSF-funded SOCCOM project begin analyzing data gathered by more than four dozen robotic floats deployed into this critically important body of water that encircles Antarctica. 

Join us Tuesday, October 25, at 2:30 pm EDT (11:30 am PDT) as leading oceanographers discuss the latest, and sometimes surprising, findings coming from their SOCCOM research. 

Posted: Thu, 08/11/2016 - 08:39

Peering into the insides of a machine can be a useful way to learn about how it works. MBARI researchers Ken Johnson and Hans Jannasch created a transparent version of a profiling float, an instrument that makes biogeochemical measurements in the ocean, for educational purposes. To make the clear float, Jannasch collected old, discarded parts at MBARI and from partners at the University of Washington, and replaced the yellow outer casing of the float with a transparent PVC tube.

The inner parts are labeled and there are two cutaway elements—one to see the flow-cell, a device that allows seawater to be pumped over the sensors and shields the pH sensor from light, and another to see the bladder that inflates and deflates to allow the float to sink to the bottom and rise through the upper 2,000 meters of the open ocean, collecting measurements along the way. Jannasch, hailing from Germany, painted the cutaways red, a technique he remembers from his childhood when he saw an exhibit of a train that was cut in half in the Deutsches Museum in Munich.