Building resilience in the production and distribution of CO₂-in-seawater Certified Reference Materials (CRMs) continues to be an issue for the global marine carbon community because there is a single source of reference materials for total alkalinity, dissolved inorganic carbon, and pH in seawater and a calibrated HCl titrant for seawater alkalinity analysis (A. Dickson Laboratory, Scripps Institution of Oceanography, UC San Diego, USA). On 16 September 2021, as part of the Global Ocean Acidification Observing Network (GOA-ON) Week, IOCCP contributed to a dedicated session "Community Discussion around CO₂-in-seawater CRMs."

Apart from introducing the results from over 240 responses to the "CO₂-in-seawater Reference Material Community Survey" organized by the US Interagency Working Group on Ocean Acidification, the session informed and discussed about the status of CRMs and updates on resilience building globally and regionally in the US, Europe and for developing and lesser resourced laboratories. You can view the recorded webinar from the GOA-ON YoutTube Channel here: https://www.youtube.com/watch?v=8SJ2SW54Nhc

Moreover, we recommend reading a related article published on 29 September in Science News: "The world’s only source of critical seawater samples could dry up." You can access it from here: https://www.science.org/content/article/world-s-only-source-critical-seawater-samples-could-dry

We are excited to let you know that IOCCP is co-organzing and co-sponsoring the 53^rd International Colloquium on Ocean Dynamics which will take place on 16-20 May 2022 in Liege, Belgium. The theme of the 53rd Liege colloquium is "Low oxygen environments in marine and coastal waters: Drivers, consequences, solutions." The event will investigate new developments and insights related to deoxygenation in open and coastal waters. The colloquium is a contribution to the Ocean Decade program Global Ocean Oxygen Decade (GOOD). Please see the Colloquium website for a complete list of sessions, including one on "Deoxygenation: observing and modelling" co-convened by Véronique Garçon, IOCCP Co-Chair. Véronique and Maciej Telszewski, IOCCP Director, represent IOCCP on the Colloquium Organizing and Scientific Committee.

Abstract submission deadline is on 16 January 2022, and early-bird registration will close on 30 March 2022. Feel free to use the attached flyer to spread the announcement among your colleagues.

This is a friendly reminder that there is still a chance to submit an abstract for the 2022 Ocean Sciences Meeting (OSM 2022) which will be held on 27 February - 04 March 2022 in Honolulu, HI, USA. This year's conference format allows for in-person, virtual or hybrid attendance. See here for details on which registration option is most suitable for your needs: https://www.aslo.org/osm2022/in-person-virtual-or-hybrid/. In the Conference program you will find many sessions relevant for ocean carbon and biogeochemistry observations and modelling. A complete list of scientific sessions can be found here: https://www.aslo.org/osm2022/scientific-sessions/

Abstract deadline of 11:59 pm EDT on 29 September 2021 will be strictly enforced. Please note that abstract fee was waived for submissions by attendees from developing countries. See here for detailed abstract guidelines: https://www.aslo.org/osm2022/abstract-guidelines/

­Please join the Global Ocean Oxygen Network (IOC Expert Working Group GO2NE) for a new session of its webinar series on ocean deoxygenation. This 9^th webinar will take place on 23 September 2021 at 14:00 UTC. The webinar will feature presentations by: Dante Espinoza-Morriberon (Instituto del Mar del Perú) on "Numerical modelling of oxygen variability and deoxygenation trends in the Southeastern Pacific," and Renato Salvatteci (Kiel University, Germany) on "Paleoceanographic evidence for smaller fish species in a warm and oxygen-poor ocean." Recordings from this and past webinars are available from here: https://www.youtube.com/results?search_query=unesco+go2ne

We would like to let you know that an updated version of Jena CarboScope ocean CO₂ flux product can be accessed from the website at http://www.bgc-jena.mpg.de/CarboScope/?ID=oc_v2021. CarboScope provides the temporally and spatially resolved estimates of the global sea-air CO₂ flux based on the SOCAT data set of pCO₂ observations, as presented in Rödenbeck et al., 2013. The product comprises seasonal, interannual, and day-to-day variations. This update involves the use of SOCATv2021 data and the additional year 2020.

On behalf of the event organizers, we invite you to join the OASIS for a Predicted Ocean, a UN Ocean Decade Laboratory Satellite Event held on Thursday, September 16 during two identical one-hour sessions at 14:00 UTC and 23:00 UTC. This online workshop will bring the air-sea observation community together to discuss how we can contribute to Observing Air-Sea Interactions Strategy (OASIS) themes to make OASIS goals a reality. The Satellite Activity will encourage brainstorming and collaborations using short pre-recorded talks combined with highly interactive online tools. We will use Gather.Town with separate rooms for each theme, whiteboards, a poster session room, small meeting areas, and a larger plenary session. Don’t miss your chance to help launch the OASIS for a Predicted Ocean.

Please register for this workshop at no cost at the following link: https://airtable.com/shreC0mGhtDDUiz2O See below for more information on the themed poster sessions and events timetable.

On behalf of the Global Ocean Acidification Observing Network (GOA-ON) we would like to let you know that the Ocean Acidification Week 2021 is just around the corner (Monday 13 September - Friday 17 September, 2021). This year, GOA-ON's virtual OA Week includes 5 plenary sessions, updates from each regional hub, and many community discussion sessions. The full program can be viewed from here.

Please visit the OA Week 2021 webpage for more details about each virtual session, and to register. Feel free to share the webpage and full program with your professional networks.

We are happy to let you know that the Ocean Observing System Report Card for 2021 was released in July by the GOOS Observations Coordination Group. Each year this Report provides a key insight into the status of the Global Ocean Observing System, assessing observing networks’ progress, focusing on what is needed to meet the challenges and demands for ocean information, and encouraging collaborations and new partners to join the ocean observing community.

The 2021 Report features several key areas including a section on the status and value of monitoring ocean oxygen and deoxygenation to which IOCCP and the Global Ocean Oxygen Network (GO₂NE) among others have contributed. The 2021 Report Card can be viewed online or downloaded as PDF from www.ocean-ops.org/reportcard2021

On behalf of the GLODAP Reference Group, and hundreds of seagoing oceanographers that tirelessly have collected data all over the ocean, we are happy to announce the publication of GLODAPv2.2021. The Global Ocean Data Analysis Project (GLODAP) data product provides access to quality controlled surface to bottom ocean biogeochemical data, with an emphasis on seawater inorganic carbon. GLODAPv2.2021 is an update of the previous version, with 43 additional cruises, extension of time coverage until 2020, and the inclusion of DOIs for each individual cruise. GLODAPv2.2021 includes measurements from more than 1.3 million water samples from the global oceans collected on 989 cruises. The data for the 12 core variables have undergone extensive quality control, especially systematic evaluation of bias. The data are available in two formats: (i) as submitted by the data originator but updated to WOCE exchange format and (ii) as a merged data product with adjustments applied to minimize bias. 

The original data, their documentation and doi codes are available at the Ocean Carbon Data System of NOAA NCEI. This site also provides access to the merged data product, which is provided as a single global file and as four regional ones. An accompanying manuscript has been submitted for consideration for publication in Earth System Science Data: https://essd.copernicus.org/preprints/essd-2021-234/. See also the GLODAPv2.2021 release poster.

We would like to let you know that the next presentation in the GOA-ON Webinar Series will take place on Wednesday, 14 July 2021 at 10:00 Australian Eastern Standard Time (UTC +10). The speaker will be Dr. Eric Mortenson, a postdoctoral researcher at CSIRO, Australia. His talk is entitled, "Regional changes in Southern Ocean biogeochemistry due to projected carbon uptake". Please register here: https://register.gotowebinar.com/rt/3191371397724780304

If you missed any of the GOA-ON webinars, you can watch them on the GOA-ON Youtube Channel. Most recently, we heard from Dr. Mohammed Idrissi, Dr. Melissa Chierici, and Dr. Chibo Chikwililwa who discussed ocean acidification monitoring across western Africa.