The 25th International SST Users’ Symposium and GHRSST Science Team Meeting will take place in Montreal, Canada from June 10th to 14th. The event will be co-hosted by Environment and Climate Change Canada and Université du Québec à Montréal.

Deadlines

• 21 May: Deadline for providing presentations, posters and pre-recordings
• 1 June: deadline for registration for participating online at GHRSST25

Key Preparation Documents for GHRSST25

Below you will find key documents which you should read prior to attending GHRSST25!

• GHRSST25 Agenda
• GHRSST25 Book of Abstracts
• GHRSST25 Info Pack (Logistics, Hotels, Transport, Venue Address)
• Guidelines for Participants
• Guidelines for Presenters (Posters, Keynotes, and Talks online and in-person)
• Guidelines for Chairs and Co-Chairs

Outline of the Symposium and Science Team Meeting

Monday: Reports of the agencies: DACs and GHRSST Data Producers updates and Reports of the task teams (1-4)

Tuesday: Science sessions and Poster session and icebreaker event

Wednesday: Science sessions (continuation) and Afternoon/evening: Social event and dinner

Thursday: Science Sessions (continuation)

Friday: GHRSST workshop, Wrap up and CEOS SST-VC Meeting (on invitation only)

The 25th International SST User Symposium Science Sessions

Science Session 1: Coupled Data Assimilation

Chair: Sergey Skachko (ECCC)

Co-Chair: Misako Kachi (JAXA)

Keynote

Towards Strongly Coupled Data Assimilation at Environment Canada, Mark Buehner (Environment and Climate Change Canada) (Presentation: Towards a Strongly Coupled Data Assimilation at Environment Canada (zenodo.org))

Talks

• SST for Ocean Forecasting, Coupled NWP and Seasonal Prediction at the Bureau of Meteorology, Pallavi Govekar (Bureau of Meteorology)
• Global daily SST analysis at Environment and Climate Change Canada, Sergey Skachko (Environment and Climate Change Canada) (Presentation: Global Daily SST Analysis at Environment and Cliimate Change Canada (zenodo.org))
• Radiance assimilation at ECMWF for SST and Sea Ice Concentration, Philip Browne (ECMWF) (Presentation: Radiance assimilation at ECMWF for SST and Sea Ice Concentration (zenodo.org))
• Use of near-real-time SST analyses for ENSO prediction and analyses with a coupled ocean-atmosphere model of intermediate complexity, Alexey Kaplan (Lamont-Doherty Earth Observatory of Columbia University)

Science Session 2: Climate Change and Variability in Global and Regional SST

Chair: Marisol García-Reyes (Farallon Institute)

Co-Chair: Haifeng Zhang (Bureau of Meteorology)

Keynote

Impact of resolution on observed SST climatology and variability, Cristina González-Haro (Institut de Ciències del Mar – ICM, Barcelona Expert Center – BEC on Remote Sensing Spanish National Research Council – CSIC)

Talks

• A new global, combined SST and IST CDR from 1982 to 2024, for the Copernicus Climate Change Service, Ioanna Karagali (Danish Meteorological Institute) (Presentation: A new global, combined SST and IST CDR from 1982 to 2024, for the Copernicus Climate Change Service C3S (zenodo.org))
• The strange case of the presisting Mediterranean heatwave, Salvatore Marullo (CNCNR – Institute of Marine Sciences – Rome – Italy)
• Exceptional global sea surface temperatures associated with the 2023 and 2024 El Nino, Christopher Merchant (National Centre for Earth Observation and Univeristy)
• Analysis of the Global Marine Heat waves based on CMA Ocean Data Analysis System for Sea Surface Temperature (CODAS-SST) Datasets, Zhihong Liao (National Meteorological Information Centre, China Meteorological Administration)

Science Session 3: Challenging Regions: the Coastal Margin and the Arctic

Chair: Sandra Castro (CCAR, University of Colorado)

Co-Chair: Jean-Philippe Paquin (Environment and Climate Change Canada)

Keynote

Multi-scale variations of ocean temperature off the coast of Nova Scotia: Analyses in situ and remote sensing observations and high-resolution ocean models towards applications in ecosystem and fishery, Youyu Lu (Fisheries and Oceans Canada) (Presentation: Mutli-scale variations of ocean temperature off the coast of Nova Scotia: Analyses of in situ and remote sensing observations and high-resolution ocean models towards applications in ecosystem and fishery (zenodo.org))

Talks

• Evolution of Copernicus Marine Surface Temperature Products in Coastal Regions and High Latitudes, Gary Corlett (EUMETSAT) (Presentation: https://zenodo.org/records/13378252)
• SST trends and extreme events across L4 SST datasets at 23 globally significant coastal habitats for top marine predators, Marisol García-Reyes (Farallon Institute) (Presentation: SST trends and extreme events across L4 SST datasets at 23 globally significant coastal habitats for top marine predators (zenodo.org))
• Using satellite-derived surface temperatures to benchmark climate models and reanalyses in the Arctic, Pia Nielsen-Englyst (Danish Meteorological Institute) (Presentation: Using satellite-derived surface temperatures to benchmark climate models and reanalyses in the Arctic (zenodo.org))
• Status of the Ice and Sea Surface Temperature activities at MET Norway and DMI, Steinar Eastwood (Norwegian Meteorological Institute) (Presentation: Ice Surface Temperature activities at MET Norway and DMI (zenodo.org))

Science Session 4: Calibration, Validation, and Product Assessment

Chair: Daniele Ciani (CNR-ISMAR)

Co-Chair: Marouan Bouali (Orbty Ltd.)

Keynote

Derivation and Validation of over two decades of skin SST retrievals from MODIS on Terra and Aqua, Peter Minnett (RSMAS, University of Miami) (Presentation: Deviation and validation of over two decades of skin SST retrievals from MODIS on Terra and Aqua (zenodo.org))

Talks

• Fiducial Reference Measurements for SST and sea-ice, Anne O’Carroll (EUMETSAT) (Presentation: Fiducial Reference Measurements for SST and sea-ice (zenodo.org))
• On Potential Contribution of TICFIRE on HAWC/AOS Mission for SST Validation and Applications, Jean-Pierre Blanchet (Université du Québec à Montréal – UQAM)
• Assessing the impact of additional L4 analyses in the Met Office GMPE product, Chongyuan Mao (Met Office)
• SOFS SST applications: validation of IMOS nighttime Geo-Polar Multi-Sensor L3S skin SST and investigation of SST fronts in the Southern Ocean, Haifeng Zhang (Bureau of Meteorology) (Presentation: Southern Ocean Flux Station (SOFS) data applications – validation of IMOS L3S SST products and investigation of a large SST gradient event (zenodo.org))

Science Session 5: Advances in Computing and Products

Chair: Veronica Lance (NOAA)

Co-Chair: Ed Armstong (NASA Jet Propulsion Laboratory, California Institute of Technology)

Keynote

A Deep Learning Approach to Satellite Bias Correction in Level 4 Data Assimilation SST Products, Garrett Graham (NOAA National Centers for Environmental Information/North Carolina Institute for Climate Studies)

Talks

• Fast Simulation of Infrared Atmospheric Optical Depth Based on Neural Network, Mingkun Liu (College of Marine Technology, Faculty of Information Science and Engineering, Ocean University of China)
• 4DVarNet-SST: Neural Data assimilation schemes for the production of L4 NRT SST product on the North Sea/Baltic Sea, Maxime Beauchamp (IMT Atlantique)
• Recent Advances in Applications of Cloud Computing and Cloud Data Optimization, Edward M. Armstrong (NASA Jet Propulsion Laboratory, California Institute of Technology) (Presentation: Recent Advances in Cloud Computing and Cloud Data Optimization (zenodo.org))
• Improvements to the NOAA iQuam System: Enhancing Data Completeness and Quality, Yaping Li (GST at NOAA/NESDIS/STAR)

Science Session: Applications and Observations

Chair: Gary Wick (NOAA/OAR/PSL)

Co-Chair: Pia Nielsen-Englyst (DMI)

Talks

• Improved Surface Currents from Altimeter-Derived and Sea Surface Temperature Observations: Application to the North Atlantic Ocean and intercomparison of the OSTIA L4 NRT and REP Products, Daniele Ciani (CNR-ISMAR)
• Selection, in-situ calibration, and minimum coverage of a GHRSST product for the monitoring of the Canadian Atlantic Zone, Peter Galbraith (Fisheries and Oceans Canada) (Presentation: Selection, in-situ calibration, and minimum coverage of a GHRSST product for the monitoring of the Canadian Atlantic Zone (zenodo.org))
• A new parameterization for oceanic diurnal warming, Andy Harris (NOAA-CISESS, University of Maryland)
• When is Wind Speed Not Enough for Characterizing the Cool Skin?, Sandra Castro (CCAR, University of Colorado)

GHRSST25 Points of Contact

For general questions, please contact the following persons:

• Erika Hayashi (GPO) ERH@dmi.dk
• Dorina Surcel Colan (ECCC), dorina.surcel-colan@ec.gc.ca
• Mélanie Nadeau (ESCER/UQAM) nadeau.melanie@uqam.ca