Category Archives: Meetings

Workshop on Abrupt Changes in the North Atlantic Subpolar Gyre at Utrecht University

Posted on December 19, 2024 by | Leave a comment

Wednesday February 26 (starting at 12:00) to Friday February 28 (ending at 13:00)

All career stages are welcome to attend. Remote attendance is possible, but we encourage in-person participation. Lunch and dinner will be provided for all participants. Expenses for hotel and travel are not included. There is no participation fee. Invited speakers will be staying at hotel Mitland. A list of other hotels located near the workshop is attached below.

Please register here if you would like to attend and submit an abstract for a short poster session (optional). You are very welcome to share this advertisement with anyone that may be interested. 

Summary of the workshop

Previous modeling studies suggest that North Atlantic subpolar gyre (SPG) convection may exhibit abrupt changes and may in some cases collapse in response to global warming. These changes have been shown to have important climate impacts, yet may occur without a more severe collapse of the AMOC and hence this raises questions about the associated mechanisms. Do such abrupt changes reflect a persistent shift in SPG dynamics (“tipping point”) or do these changes simply reflect extreme anomalies in response to a forcing? And what is the role of the AMOC?

The aim of this workshop is to begin to address these questions by bringing together leading researchers on SPG dynamics. Current research on this topic will be summarized through a series of presentations, and we will work together to define a protocol for modeling, detecting and understanding abrupt changes in the SPG through a series of discussions.

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Call for Abstract Submissions – North Atlantic Session at OSM24

Posted on August 29, 2023 by | Leave a comment

Jannes Koelling, Jaime Palter, Ric Williams, Fiamma Straneo, Hilary Palevsky

We’re hosting a session at OSM24 on ocean physics and biogeochemistry in the subpolar North Atlantic and would love to get submissions from the OSNAP community. The abstract and session link are below:

PL005 – Physical transport and biogeochemical cycling in the subpolar North Atlantic (https://agu.confex.com/agu/OSM24/prelim.cgi/Session/195794)

The subpolar North Atlantic is a key region for regulating Earth’s climate which features strong ocean-atmosphere interaction and connects the upper and lower branches of the Atlantic Meridional Overturning Circulation (AMOC). The progressive transformation from warm surface waters into North Atlantic Deep Water (NADW) and their subsequent equatorward spreading drives northward ocean heat transport, sequesters anthropogenic carbon, and oxygenates the deep ocean. Recent advances have significantly improved our understanding of sources of AMOC variability and spreading pathways of NADW, as well as the biogeochemical implications of both.

This session will highlight the latest research on ocean physics and biogeochemistry in the subpolar North Atlantic in a broad interdisciplinary setting. We invite contributions on a diverse set of topics including AMOC variability and its connection to Earth’s climate, the transport pathways and transformation of heat, freshwater, oxygen, nutrients and carbon throughout the basin, and their links to air-sea gas exchange, carbon sequestration, and the biological carbon pump. The session encourages submissions using the wealth of data from past and ongoing observational programs, such as OSNAP, OVIDE, AZOMP, and BGC-Argo, as well as studies using regional or global models.

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SCIENTIFIC MEETING

Posted on September 1, 2022 by | Leave a comment

Atlantic Overturning: New Observations and Challenges

The Royal Society meeting will take place on 5-6 December 2022, 09:00 – 17:00 (London Time). Both in-person and online attendance will be available.

Please note that the number of participants is limited. Thus, you will have to request an invitation in advance to attend.

Although speakers are by invitation, posters may be submitted. If you would like to apply to present a poster please submit your proposed title, abstract (not more than 200 words and in third person), author list, name of the proposed presenter and institution to the Scientific Programmes team no later than Monday 17 October 2022. Please include the text ‘Poster abstract submission’ in the email subject line.

More information can be found on the Royal Society meeting website.

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Call for Abstracts: AGU Fall Meeting Session “OS026 – Variability and controls of ocean climate revealed by long-term multidisciplinary eulerian observatories”

Posted on July 13, 2022 by | Leave a comment

Dear colleagues,

We are pleased to invite you to submit an abstract to the session: Variability and controls of ocean climate revealed by long-term multidisciplinary eulerian observatories that we have prepared at the next AGU Falll Meeting, which will take place on 12-16 December 2022 in Chicago (in person and virtual participation).

The deadline to submit your abstract is *3 August (23:59 EDT/03:59 GMT)*, instructions are found here.

We hope to meet you virtually or in person in December. Please don’t hesitate to forward this call to other colleagues who may be interested.

Raquel, Elizabeth, Yao and Dariia

*OS026 – Variability and controls of ocean climate revealed by long-term multidisciplinary eulerian observatories*

The global ocean absorbs, stores, and redistributes vast amounts of heat and carbon and is therefore the main driver of climate regulation. It means that human-induced forcing is superimposed on ocean natural variability, and that this variable forcing involves complex interactions and feedbacks of physical, chemical and biological processes from the air-sea interface to the sea-floor. To understand these complex relationships between ocean processes, their forcings, and effects, long term time-series of Essential Ocean Variables (EOV) from fixed point (Eulerian) multidisciplinary observatories, monitoring processes that take place over much shorter periods of time, are critical.

In this session, we aim to share most recent research based on long term OceanSITES data sets or on long term time-series from eulerian multidisciplinary observatories not included in the network addressing air/sea exchange processes such as heat and freshwater fluxes, and ocean carbon and oxygen update; ocean transport, but also other biogeochemical, biological, and deep ocean processes. We welcome contributions which describe ocean variability at different time-scales from large-scale climatic fluctuations to hurricanes, and examine their governing mechanisms and environmental implications. Submissions focused on processes-oriented studies integrating different observing platforms (e.g. satellite, Argo floats, gliders, …) with long-term eulerian observation (moorings, ship-based time-series) are also encouraged as well as studies combining observations and modelling.

*Conveners:*Raquel Somavilla (Spanish Institute of Oceanography), Elizabeth Shadwick (CSIRO Marine and Atmospheric Research), Yao Fu (Georgia Institute of Technology), and Dariia Atamanchuk (Dalhousie University)

*Index Terms: *4215 Climate and interannual variability, 4805 Biogeochemical cycles, processes, and modeling, 4504 Air/sea interactions, 4532 General circulation

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OSNAP at the 2022 US AMOC Science Team Meeting

Posted on April 22, 2022 by | Leave a comment

OSNAP-related presentations at the 2022 US AMOC Science Team Meeting can be found on the site linked below. We look forward to ‘seeing’ everyone and learning about the latest findings. If you have any edits or questions please contact Anne-Sophie Fortin (afortin3@gatech.edu).

OSNAP at Upcoming Meetings

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OSNAP at Ocean Sciences Meeting

Posted on February 1, 2022 by | Leave a comment

OSNAP related presentations at OSM 2022 can be found on the site linked below. We look forward to ‘seeing’ everyone and learning about the latest findings. If you have any edits or questions please contact Anne-Sophie Fortin (afortin3@gatech.edu) 

OSNAP at Upcoming Meetings

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OSNAP at EGU

Posted on April 16, 2021 by | Leave a comment

OSNAP related presentations at EGU 2021 can be found on the site linked below. We look forward to ‘seeing’ everyone, and learning about the latest findings. If you have any edits or questions please contact Sarah Clem (sarah.clem@duke.edu) 

OSNAP at Upcoming Meetings

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OSNAP at Ocean Sciences Meeting 2020

Posted on February 17, 2020 by | Leave a comment

If you’re at Ocean Sciences this week, and curious to learn more about ongoing OSNAP research, there are numerous opportunities. Follow the link below to find a list of oral and poster presentations featuring OSNAP related topics:

OSNAP at Upcoming Meetings

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OSNAP at Ocean Science Meeting 2020

Posted on September 4, 2019 by | Leave a comment

Below is a list of Ocean Sciences 2020 special sessions that may be interested to the OSNAP community.  Abstracts are due September 11, 2019.

 

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Ocean Sciences 2020 – OSNAP related abstract submission

Posted on July 19, 2019 by | Leave a comment

We are want to draw your attention to the following session at the Ocean Sciences Meeting, 16-21 February 2020 in San Diego, CA. Abstracts can be submitted by visiting https://agu.confex.com/agu/osm20/prelim.cgi/Session/85893 until the submission deadline Wednesday, 11 September.

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Atlantic Ocean Variability in A Changing Climate: Observations, Modeling, and Theories

Description

By redistributing a large amount of heat and salt, the Atlantic Ocean significantly impacts regional and global climate over a wide range of time scales. In particular, the Atlantic has seen strong variations in the ocean heat and freshwater content over the past couple of decades, as well as in the uptake and storage of anthropogenic carbon, which has been attributed to changes in the ocean circulation, e.g., those related to the Atlantic Meridional Overturning Circulation (AMOC). However, the mechanisms through which the ocean circulation changes (e.g., in the mean state and variability) and impacts the climate system (e.g., via a series of modes of variability such as the Atlantic Multidecadal Variability, the North Atlantic Oscillation), as well as the feedback, remain poorly understood. This session invites submissions that advance our understanding of the Atlantic Ocean variability, the role it plays in the atmosphere–ocean–sea-ice system, and its impact on the future climate. It aims to bring together recent progress in understanding the circulation and climate variability in the Atlantic sector from paleoclimate, historical and future perspectives. Studies utilizing observational, modeling and/or theoretical frameworks are all welcome.

******

We very much hope to see you in San Diego.

 

Best regards,

Feili Li (Duke University)

Rohit Ghosh (Max Planck Institute for Meteorology)

Laifang Li (Duke University)

Dian Putrasahan (Max Planck Institute for Meterology)

 

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