We would like to let you know that US Ocean Carbon & Biogeochemistry (OCB) is building the leadership team for a new NSF EarthCube-funded Marine Ecological Time Series Research Coordination Network (METS RCN) over the next 3-4 years. This RCN is primarily aimed at building community consensus around FAIR (Findable, Accessible, Interoperable, Reusable) data solutions and broadening users and applications of METS data sets. RCN activities will include both virtual and in-person consensus building activities, a METS data working group, regional user groups, products, and case studies to explore broader applications of METS data sets, and a data hackathon to build capacity to ingest, analyze, and integrate METS data with other disciplinary and cross-disciplinary data to accelerate scientific discovery. Applications for the steering committee members are welcome from all interested and enthusiastic experts in the fields of oceanography, data science, earth system models, statistics, or data synthesis, and with a vested interest in applying FAIR principles across METS programs.

RCN Steering Committee commitments will include:

• virtual planning and discussion meetings every ~6-8 weeks (more often as needed)
• planning and attending (as necessary/interested) RCN activities - travel support is available
• contributing to RCN publications and products

If you are interested and able to actively contribute and participate in METS RCN leadership, please send an abbreviated (2-page) CV and short (maximum of 1 page) statement of interest to This email address is being protected from spambots. You need JavaScript enabled to view it. by June 1, 2021.

We encourage you to join the Global Ocean Oxygen Network (IOC Expert Working Group GO₂NE) for a new session of its webinar series on ocean deoxygenation. The seventh webinar will take place on 26 May 2021, 14:00-15:00 UTC. The webinar will be moderated by Michael Roman (University of Maryland Center for Environmental Science, USA) and will feature two talks by Cassandra N. Glaspie (Louisiana State University, USA) on "Fish diet shifts associated with the northern Gulf of Mexico hypoxic zone" and by ­Nancy N. Rabalais (Louisiana State University, USA) on "Eutrophication-driven coastal hypoxia in the northern Gulf of Mexico."

Register for the webinar here. If you missed previous webinars from the series, you can access the recordings here. To register for the mailing list to receive information about upcoming events, follow this link.

We are absolutely thrilled to let you know that on 1 May 2021, the IOCCP welcomed six new members of the Scientific Steering Group (SSG), completing the biggest rotation on our Panel since its inception. Adrienne Sutton (NOAA PMEL, USA) and Keyhong Park (KOPRI, Republic of Korea) take over the responsibility for the Time Series Efforts theme; Richard Sanders (NORCE, Norway) will lead the Surface Ocean Biogeochemistry Observations theme; Maribel García-Ibáñez (UEA, UK) will coordinate the ship-based component of the Interior Ocean Observations theme; Steve Jones (UiB, Norway) takes responsibility for Data & Information Access Services theme; while Sana Ben Ismail (INSTM, Tunisia) will strengthen the regional implementation of IOCCP coordination and communication services across several of the themes. Our new SSG members were selected and approved by our sponsors from among many outstanding applications. To learn more about our new SSG members, visit their profiles.

At the same time, we want to acknowledge our five outgoing SSG members: Masao Ishii (MRI-JMA, Japan), Rik Wanninkhof (NOAA AOML, USA), Björn Fiedler (GEOMAR, Germany), Benjamin Pfeil (UiB, Norway) and Cristian Vargas (Uni. Concepción, Chile). The IOCCP Scientific Steering Group would like to express their gratitude for being able to channel their enthusiastic and visionary leadership to develop and implement activities of strategic importance to the marine biogeochemistry community. We wish them all the very best in future endeavours and we look forward to their ongoing involvement in the ocean carbon and biogeochemistry community.

We would like to let you know that the US Ocean Carbon & Biogeochemistry (OCB) funded Working Group on "Filling the gaps in observation-based estimates of air–sea carbon fluxes" will host a virtual workshop on May 26-27, 15:00-20:00 UTC. All interested are invited to register (follow the link here) for the first day of the meeting. The second day is for the WG members only. The WG is led by Galen McKinley (Columbia/LDEO, USA) and Peter Landschützer (MPI-Hamburg, Germany).

For more information on the workshop programme and the work of the WG, please see here: https://www.us-ocb.org/filling-the-gaps-in-observation-based-estimates-of-air-sea-carbon-fluxes-working-group/

We would like to let you know that the next GOA-ON Webinar by the Communities of Ocean Action on Ocean Acidification will take place on Monday, 17 May 2021, 12:00 –13:00 UTC. The two focal points for the Communities of Ocean Action on Ocean Acidification, Bronte Tilbrook (CISRO) and Peter Swarzenski (IAEA), will provide updates about progress made on the Voluntary Commitments (VC) and other developments. They will be joined by Roshan Ramessur (OA Africa Network) and Kirsten Isensee (IOC-UNESCO) who will share lessons learned from their VCs during the past year. The Communities of Ocean Action were created in 2017 at the Lisbon Ocean Conference to serve as a catalyst for change, providing an opportunity to network and collaborate on commitments which address Sustainable Development Goal (SDG) 14.

Register for the webinar by following this link: https://attendee.gotowebinar.com/regi…/2393100666611507214

We would like to let you know that on Thursday, 20 May 2021, 11:00-12:00 UTC, the European Marine Board (EMB) will host a webinar on Big Data and the value chain of ocean CO₂ measurements. The webinar will build on the science presented in EMB's 6^th Future Science Brief on Big Data in Marine Science, and will be presented by one of the co-authors of this publication, Dr. Dorothee Bakker (short bio).

The webinar will be hosted on ZOOM, for which you can register via this link. The recording of the webinar will also be made available on the EMB YouTube page.

We are excited to announce that IOC-UNESCO has just published the "Integrated Ocean Carbon Research: A Summary of Ocean Carbon Knowledge and a Vision for Coordinated Ocean Carbon Research and Observations for the Next Decade", a report which sets out to accomplish the vital task of indicating the current gaps and future directions for the integrated ocean carbon cycle research.

IOCCP was one of the five international research and coordination programmes on ocean-climate interaction, which have been working together since 2018 in the IOC Working Group on Integrated Ocean Carbon Research (IOC-R). The other organizations are: the Integrated Marine Biosphere Research Project (IMBeR), the Surface Ocean Lower Atmosphere Study (SOLAS), the Climate and Ocean Variability, Predictability and Change (CLIVAR) project and the Global Carbon Project (GCP).

The report presents a synthesis of the state of knowledge about the oceans’ role in the carbon cycle and points to the way ahead. Its objective is to provide decision-makers with the knowledge needed to develop climate change mitigation and adaptation policies for the coming decade. It also emphasizes the importance of scientific knowledge to the taking of informed decisions within the United Nations Framework Convention on Climate Change in order to achieve the goals of the Paris Agreement and build more resilient societies. Through continued collaboration amongst IOC-R WG co-conveners, we hope to develop an innovative joint programme of medium- and long-term integrated ocean carbon research to fill the gaps in this field.

Click here to access the official press release of IOC-UNESCO.

On behalf of the U.S. Interagency Working Group on Ocean Acidification we would like to encourage you to participate in a community survey about your use of CO₂-in-seawater reference materials. The survey will take 5-10 minutes and will help to gain a baseline understanding of how reference materials for the quality control of measurements of seawater CO₂ system parameters are used and how to build resilience in their production and distribution. Currently, 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). A recent webinar by Andrew Dickson entitled, “CO2-in-seawater reference materials: yesterday, today, and tomorrow” (see the video recording) provides the context and motivation for this larger effort.

While the survey will not close on a specific date, we request that you complete it by May 21, 2021. Individual responses to this survey are confidential. Data from this survey linked to respondents’ identities will never be released publicly. Rather, data for public release will be presented in aggregated forms.

We are happy to let you know about the publication of a new compilation of dissolved organic matter (DOM) data obtained from global ocean observations from 1994 to 2020. This compilation by Hansell et al. (2021) consists of measurements of dissolved organic matter (DOM) and other chemical and hydrographic parameters obtained during the global ocean observations from 1994-01-01 to 2019-12-31. Measurements of DOM in the open ocean have increased greatly since the late 1980's, spurred by the growth in scientific interest directed at the ocean carbon cycle. DOM data generated by many laboratories around the world are typically made available in diverse, regional data archives, making them less available than necessary for the data value to be maximized. The effort here was to make ship-collected bottle data accessible more directly and in uniform format.

On behalf of the Global Ocean Acidification Observing Network (GOA-ON) we would like to share information about the next presentation in the GOA-ON Webinar Series. On Wednesday, 21 April 2021 at 18:00 UTC, Dr. Kristina Barclay (Univ. Calgary, Canada) will talk about "Canada's Ocean Acidification Community of Practice." Please register here: https://register.gotowebinar.com/rt/8802503588583695629. An abstract of the talk is provided below.

If you missed any of the GOA-ON webinars, you can watch them on the GOA-ON Youtube Channel.