We are thrilled to announce the release of Surface Ocean CO₂ Atlas (SOCAT) version 2023 which is now available on SOCAT website. SOCAT-based estimates have shown that the oceans take up a quarter of the CO₂ emissions from human activity, thus helping to mitigate climate change and providing a way to balance the Earth's carbon budget. The latest update of the community-led Surface Ocean CO₂ Atlas (www.socat.info), version 2023, has delivered 35.6 million, quality-controlled, in situ surface ocean fCO₂ (fugacity of CO₂) measurements collected between 1957 and 2022 with an estimated accuracy of <5 μatm.

The SOCAT synthesis products and the fCO₂ measurements in them are key for quantification of ocean CO₂ uptake at a monthly timescale, providing vital information for climate policy. However, the open ocean data collection effort has dramatically declined since 2017. SOCAT itself is at immediate risk upon losing its European data management team, while facing persistent funding shortfalls. The need for accurate knowledge of ocean CO₂ uptake and its variation now and in the future makes sustained funding of accurate surface ocean CO₂ observations and their synthesis imperative.

For more information see the SOCATv2023 release poster (download here) and www.socat.info

This is to let you know about the upcoming webinar on marine carbon dioxide removal. This webinar series presented by the Coastal Acidification Networks along the West Coast and Alaska as well as California Ocean Science Trust is intended to deliver the best available information on marine carbon dioxide removal (mCDR) and to explore concepts related to coastal ocean carbon. Through this series of co-designed webinars, participants will gain a better understanding of mCDR technologies, limitations, risks, and learn how to become engaged.

The webinar will take place on 23 June 2023, at 18:00 UTC. Please register here: https://register.gotowebinar.com/register/4220985988067491159

We are pleased to let you know about the upcoming GOA-ON's June webinar focusing on "Biogeochemical Studies in the Tropical and South Atlantic Ocean - from air-sea CO₂ exchanges to ocean acidification", hosted by the LAOCA regional hub. The webinar will take place on 27 June 2023 at 14:00 UTC and will feature presentations by:

• Michelle Graco (Instituto del Mar del Peru) will present the results of the main studies developed at the upwelling system of Perú focused on the oceanographic dynamics, the carbonate system and the implementation of a low-cost coastal marine observatory to monitor natural stressors and contribute to the SDG 14.
• Thiago Monteiro (Federal University of Rio Grande, Brazil) will present some of the main studies developed by the Brazilian Ocean Acidification Network (BrOA) in the western Tropical Atlantic, in the South Atlantic and in the Antarctic Peninsula, followed by an overview of our current knowledge of carbon chemistry, from air-sea CO₂ exchanges to ocean acidification.
• Carla Berghoff from the National Institute for Fisheries Research and Development in Argentina will moderate.

Please register here: https://unesco-org.zoom.us/webinar/register/WN_SkfeDp48TfiUMiY87xX98w#/registration

This is to let you know that the NASA Plankton, Aerosol, Cloud, ocean Ecosystem (PACE) Applications team invites the research, applied sciences, and decision-making communities to the 2023 PACE Applications *virtual* workshop held in 6-7 September, 2023 at 10:00AM ET. The PACE mission and community will identify best practices and next steps to address and improve user readiness, prepare for PACE data integration and application functionality, and finally post-launch transition and application implementation.

We encourage the marine biogeochemistry community, especially those working at the intersection of biogeochemistry and ocean ecology, to become familiar and engaged with PACE mission preparations. The event registration form is available here. For more information please visit the website: https://pace.oceansciences.org/events_more.htm?id=56

We would like to let you know about the upcoming webinar on ocean deoxygenation organized by the Global Ocean Oxygen Network (IOC Expert Working Group GO2NE). The 20th webinar of the Webinar Series on Ocean Deoxygenation will take place on 19 June 2023, 15:00 h CEST (Zoom platform). The webinar will feature presentations by a more senior and an early-career scientist, 20 minutes each followed by 10 minutes moderated discussion sessions. Please register here.

We are pleased to let you know about the workshop FAIR Data Practices for Ship-based Ocean Time Series that will be held on 9-12 January 2024 at BIOS in Bermuda and will bring together globally distributed ship-based ocean time series representatives who are interested and committed to FAIR data practices with data managers and experts in semantic web technologies with the following objectives:

• Share and vet newly drafted biogeochemical and biological use cases for adoption by the broader METS community
• Work with participating time series representatives to implement these use cases for their time series programs
• Co-develop best practices for responsible use of ocean time series datasets (as a contribution to the Ocean Best Practices System repository)
• Share new findings and update recommendations on sampling and analytical protocols from the 2012 Bermuda Time Series Methods Workshop
• Explore mechanisms (and identify champions!) for engaging broader stakeholders (managers, educators, etc.) in the use of ocean time series data sets
• Start planning (and identify champions!) for an Ocean HackWeek for ocean time series data

Registration will open in Fall 2023. For more information please read the original announcement: https://www2.whoi.edu/site/mets-rcn/projects/fair-ship-based-ocean-time-series-international-workshop/

On behalf of the Global Ocean Oxygen Database and Atlas Steering Committee we would like to ask you to complete a short survey (10 questions, less than 10 minutes) to help identify who, where and how ocean oxygen is measured, what type of quality checks and flags are applied, etc. Ocean oxygen data are a critical part to understand our ocean today and in the future. However, currently there is no common entry point to obtain ocean oxygen data of known quality from the open and coastal ocean, measured from Eulerian and Lagrangian platforms. Within the Ocean Decade Programme Global Ocean Oxygen Decade (GOOD) an effort called Global Ocean Oxygen Database and ATlas (GO2DAT) is trying to change this.

We would like to let you know that twelve working group proposals were submitted to the SCOR Secretariat for consideration at the 2023 SCOR Annual Meeting and are available on the SCOR web site at https://scor-int.org/events/scor-2023-annual-meeting/. The SCOR Executive Committee will be very grateful for comments from SCOR National Committees, individuals, and interested organizations to assist in the review of these proposals. 

Please send your comments on these proposals to the SCOR Secretariat (This email address is being protected from spambots. You need JavaScript enabled to view it.) before 31st August 2023. Instructions and criteria for reviewing SCOR Working Group proposals can be found out: https://scor-int.org/wp-content/uploads/2023/05/Call_for_review_WG_proposals_May2023-final.pdf

We would like to let you know that SOLAS will hold an online Spanish workshop on Marine Biogeochemistry Research on Latin American Coastal Zones on 26 May 2023 at 14:00-17:50 UTC-4. The workshop aims to learn about current research on coastal marine biogeochemistry in Latin America, focusing on, but not restricted to, the key biogeochemical interactions and feedback between the ocean and the atmosphere of upwelling zones.

Registration is open and accessible to all participants: the registration form

We would like to let you know about the next AtlantOS Ocean Hour webinar that will focus on OASIS and current and planned air-sea flux process studies in the Caribbean Sea and Atlantic Ocean. Talks will address this important topic, highlight these projects and showcase opportunities for engagement. Presentations include OASIS, QUICCHE Cape basin process study, Atlantic Hurricane Saildrone mission and GEOMAR's upwelling study. The webinar will take place on May 25th, 2023, at 9:00 - 10:00 AM EST [6 AM PST | 3 PM CEST].