Alexander Soloviev, Nova Southeastern: "Hidden" Upwelling

Alexander Soloviev, Nova Southeastern: "Hidden" Upwelling

by Alexander Soloviev

Life & Natural Systems Earth Sciences & Geography RBKHydrology and the hydrosphereRBKCOceanography (seas and oceans)
🎙 Alexander Soloviev 👥 336 📅 January 29, 2026 ⏱ 53 min 👁 55 📄 original study 🧭 2026-08-16
Available in: English (current) Français

Keywords

hidden upwellingSoutheast Florida ShelfGulf Streamcoral reefsADCP

Summary

Dr. Alexander Soloviev presents his research on ‘hidden’ upwelling on the Southeast Florida Shelf (SFS). Classical wind-driven upwelling is common on eastern ocean boundaries, but on western boundaries like Florida, it typically occurs only during extreme events. However, an alternative form of upwelling, termed ‘hidden’ upwelling, occurs within the benthic boundary layer without reaching the surface, due to strong stratification. This phenomenon is invisible to satellites and surface measurements but significantly affects temperature and nutrient conditions for coral reef ecosystems. Soloviev’s team has analyzed 25 years of coastal observations, including ADCP moorings, and recent measurements from a Wirewalker and a Slocum Glider equipped with ADCP. They identified that interactions between the Gulf Stream and bottom topography, particularly through submesoscale eddies, drive this upwelling. The presentation includes evidence from a 2021 fish kill event at Riviera Beach, where glider data showed cold water upwelling near the reef. The research highlights the importance of subsurface physical drivers for coral reef management.

159 words

Critical Evaluation

Value of the Information & Strength of the Argument

The presentation provides valuable insights into a poorly understood phenomenon, supported by extensive observational data. The speaker effectively argues that hidden upwelling is a significant process on the SFS, driven by eddy-topography interactions. He presents a compelling case with multiple lines of evidence, including long-term mooring data and recent glider observations. The argumentation is logical and acknowledges uncertainties, such as the exact mechanisms and the chicken-and-egg problem of eddy-jet interactions. The speaker also connects the research to practical implications for coral reef management, enhancing its value.

Scientific Rigor, Source Quality, Title Accuracy

The presentation demonstrates scientific rigor, with the speaker referencing peer-reviewed literature and his own publications. He clearly distinguishes between established findings and hypotheses. The title accurately reflects the content. The speaker does not overstate conclusions and acknowledges the need for further research. The sources cited are credible, including the EOS article and his own 2017 paper. The talk is well-structured and provides a thorough overview of the research.

169 words

Title / Content Match

The title accurately reflects the content, focusing on the phenomenon of 'hidden' upwelling on the Southeast Florida Shelf.

Quality & Reliability

8/10

The presentation is based on 25 years of observational data, including ADCP moorings, gliders, and a Wirewalker, and is given by a senior oceanographer with extensive peer-reviewed publications. The speaker clearly distinguishes established knowledge from hypotheses, and acknowledges uncertainties. However, the talk is a seminar presentation, not a peer-reviewed publication, and some conclusions are preliminary.

Key Moments

Markers derived by PSI from the transcript: the creator did not define chapters.

Cited Sources

  • EOS article on hidden upwelling systems — Referenced as the source of the term 'hidden upwelling' and the concept of overlooked branches of ocean circulation.
  • Soloviev et al. 2017 paper in Deep-Sea Research — Publication describing the countercurrent and undercurrent observations on the Southeast Florida Shelf.
  • Presentation by Louisa Bill and Katherine Gan — Seminar presentation on September 17, 2025, that provided a schematic of hidden upwelling related to eddy-topography interaction.

Concurring Sources

  • EOS article on hidden upwelling systems — Supports the existence and importance of hidden upwelling as a global phenomenon.
  • Soloviev et al. 2017 paper in Deep-Sea Research — Provides observational evidence of the countercurrent and undercurrent on the SFS.

Contribution & Novelties

The presentation contributes original insights into the phenomenon of hidden upwelling on the Southeast Florida Shelf, a region where classical upwelling is rare. It synthesizes 25 years of observations to identify the dominant mechanisms, particularly the role of submesoscale eddies and the countercurrent. The research provides new evidence for the coupling between eddies and the undercurrent, and highlights the ecological significance for coral reefs. This work advances understanding of subsurface physical drivers of reef variability and has direct implications for coral reef management.

Pour aller plus loin :

  • Topostrophy — Concept used to characterize eddy-topography interactions, relevant to the mechanisms discussed.
  • Gulf Stream — The western boundary current that plays a central role in the upwelling dynamics.
  • Coral reef — Ecosystems affected by hidden upwelling, providing context for the ecological implications.

131 words

Radar Profile

The radar profile shows high scores in quantity and quality of information, reflecting the extensive observational data and rigorous analysis. The technical level is moderately high, suitable for a specialized audience. The global reliability is strong, given the speaker's expertise and peer-reviewed publications. Overall, the presentation is scientifically robust and valuable.

Reliability 8/10

💬 No comments were provided for analysis.