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Open research questions in Oceanographic and Atmospheric Processes

69 unresolved questions extracted from the limitations and future-work sections of 813 Oceanographic and Atmospheric Processes papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • Multiple scattering causes vertical deviation in the particulate 180° backscatter retrieved via oceanic high-spectral-resolution lidar (HSRL), but the severity of these deviations under realistic conditions remains unclear.

    Vertical deviation in particulate 180° backscatter of oceanic high-spectral-resolution lidar based on <i>in situ</i> phase functions · 2026 · DOI

  • Key open questions are identified, highlighting the challenge of linking small-scale processes to the large-scale coherence and persistence of DC staircases in the ocean.

    Dynamics of diffusive-convective staircases in the ocean · 2026

  • These findings reinforce that MOM6 introduces notable changes compared to MOM5, many of which remain underexplored in the context of regional ocean dynamics.

    Two-tier MOM6 regional modelling suite of the East Australian Current system · 2026 · DOI

  • Realistic island wake flows and resulting marine atmospheric boundary layer (MABL) structures subjected to diurnal changes in surface heat fluxes are not well understood, especially over islands with low topographic peaks (< 1 kilometer).

    Diurnal Characteristics of the Island Wake Marine Atmospheric Boundary Layer Downstream of Barbados · 2026 · DOI

  • Boreal springtime intraseasonal sea surface temperature cooling (SIC) events are a recurrent feature of the northern Gulf of Guinea (NGoG), yet the processes governing their intermittency and magnitude remain incompletely understood.

    Mechanisms of spring intraseasonal cooling in the Northern Gulf of Guinea · 2026 · DOI

  • However, these two different compensation methods have so far only been compared in a single, coarse-resolution climate model, and therefore little is known robustly about the effect of salinity compensation on the AMOC tipping point.

    Critical freshwater forcing for AMOC tipping in climate models – compensation matters · 2026 · DOI

  • Statistical interpolation methods struggle to simultaneously fill the severely sparse data gaps and capture the non-linear interactions, necessitating advanced artificial intelligence (AI) to explicitly learn and leverage their underlying relationships.

    Jingwei-Nutrients: A global spatiotemporal reconstruction of ocean nutrients (1965–2023) using multi-task deep learning · 2026 · DOI

  • One limitation of the current implementation is that the TFT forecasting model is trained exclusively on Indian Ocean and global basin data and may require domain adaptation for deployment in other regional contexts such as the Arctic or Antarctic oceans, where seasonal dynamics differ substantially.

    FloatChat - An Explainable Multimodal AI Platform for Predictive Oceanographic Data Intelligence with QC-Aware Natural Language Querying · 2026 · DOI

  • Trade-offs between MOOSE-GE costs and scientific objectives must be carefully selected and documented to define key scientific objectives and determine which scientific questions to address or abandon with future network configurations.

    Decadal ocean observations in the Northwestern Mediterranean: insights from the MOOSE-GE cruises · 2026 · DOI

  • OSSE (Observing System Simulation Experiment) approaches will be explored to optimize ship time allocation, number of stations, and vertical resolution for bottle sampling.

    Decadal ocean observations in the Northwestern Mediterranean: insights from the MOOSE-GE cruises · 2026 · DOI

  • Regular training (5-10 years) of machine learning tools such as CANYON-MED is needed to strengthen their capacity while maintaining data quality, requiring repeated cruises to cover large basin-scale areas.

    Decadal ocean observations in the Northwestern Mediterranean: insights from the MOOSE-GE cruises · 2026 · DOI

  • Glider operations require significant manpower (2-3 months endurance) and can only collect information down to 1000m with limited variables (T, S, O2, Chla, CDOM, backscattering).

    Decadal ocean observations in the Northwestern Mediterranean: insights from the MOOSE-GE cruises · 2026 · DOI

  • Future work should investigate spatially aware architectures such as graph neural networks, explicit integration of numerical weather prediction outputs, and ensemble or Bayesian extensions for uncertainty estimation. , typhoons, marine heatwaves) remains to be systematically evaluated; and comparisons with hybrid approaches combining data assimilation and machine learning were not conducted.

    A deep learning approach for near-coastal sea surface temperature prediction · 2026 · DOI

  • Future research will focus on ad- dressing this and other open questions. This gives optimism that HIDRA-D would also perform well there, as it is its successor, although this remains to be thoroughly tested.

    HIDRA-D: deep-learning model for dense sea level forecasting using sparse altimetry and tide gauge data · 2026 · DOI

  • These results demonstrate the effectiveness of autonomous gliders for sustained and cost-efficient ocean observation in regions where data is scarce and geopolitical sensitivity is high.

    USE OF THE SEAEXPLORER GLIDER FOR OCEANOGRAPHIC DATA COLLECTION ON THE ROMANIAN CONTINENTAL SHELF · 2025 · DOI

  • Abstract Dense overflows from marginal seas are critical pathways of oxygen supply to the Arabian Sea oxygen minimum zone (OMZ), yet these remain inadequately understood.

    Ventilation of the Arabian Sea Oxygen Minimum Zone by Persian Gulf Water · 2024 · DOI

  • Nevertheless, the dynamics of the GG freshwater plumes remain poorly documented because of the scarcity of historical, in situ observations and the lack of an ad hoc satellite‐based analysis in this region.

    Seasonal Variability of Freshwater Plumes in the Eastern Gulf of Guinea as Inferred From Satellite Measurements · 2021 · DOI

  • While the EAC and its eddies have been the subject of many synoptic studies, a consistent three‐dimensional picture of the current, its downstream evolution, and the associated seasonal and intra‐annual variability is lacking.

    Downstream Evolution of the East Australian Current System: Mean Flow, Seasonal, and Intra‐annual Variability · 2020 · DOI

  • Decades of atmospheric research have focused on the Western North Atlantic Ocean (WNAO) region because of its unique location that offers accessibility for airborne and ship measurements, gradients in important atmospheric parameters, and a range of meteorological regimes leading to diverse conditions that are poorly understood.

    Atmospheric Research Over the Western North Atlantic Ocean Region and North American East Coast: A Review of Past Work and Challenges Ahead · 2020 · DOI

  • However, the strongest anticyclonic flows occur over steep continental slopes, and, despite bathymetric slopes being known to influence baroclinic instability, their large‐scale impacts on BG halocline remain unexplored.

    Critical Role of Continental Slopes in Halocline and Eddy Dynamics of the Ekman‐Driven Beaufort Gyre · 2019 · DOI

  • This is especially true in the southern Indian Ocean (SIO), where observations are inconclusive about the existence and numerical models predict inconsistent locations of the SIO garbage patch.

    Role of Indian Ocean Dynamics on Accumulation of Buoyant Debris · 2019 · DOI

  • As a clarification of seemingly contradictory findings from previous studies, it is shown that ocean observations can adequately constrain atmospheric state estimates provided that the analysis‐observing frequency is sufficiently high and the ensemble size determining the background error covariance is sufficiently large.

    Strongly Coupled Data Assimilation in Multiscale Media: Experiments Using a Quasi‐Geostrophic Coupled Model · 2019 · DOI

  • Abstract The East Australian Current (EAC) dominates the ocean circulation along south‐eastern Australia, however, little is known about the submesoscale frontal instabilities associated with this western boundary current.

    Characterizing frontal eddies along the <scp>E</scp>ast <scp>A</scp>ustralian <scp>C</scp>urrent from <scp>HF</scp> radar observations · 2017 · DOI

  • Abstract The Indonesian Throughflow (ITF) region possesses strong mixing and experiences significant freshwater input, but the role of salinity variability in the Indonesian Seas remains unclear.

    Interannual variability of the Indonesian Throughflow: The salinity effect · 2016 · DOI

  • Abstract In the four major Eastern Boundary Upwelling Systems (EBUS), mesoscale eddies are known to modulate the biological productivity and transport near‐coastal seawater properties toward the offshore ocean, however little is known about their main characteristics and vertical structure.

    Main eddy vertical structures observed in the four major Eastern Boundary Upwelling Systems · 2015 · DOI

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69 open questions have been extracted from the limitations and future-work passages of 813 Oceanographic and Atmospheric Processes papers in our library. Each one below links back to the study that raised it, so you can read the original claim in context.

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