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Open research questions in Tropical and Extratropical Cyclones Research

33 unresolved questions extracted from the limitations and future-work sections of 397 Tropical and Extratropical Cyclones Research papers in our library. Each links back to the study that raised it.

What the literature leaves open

  • Abstract The impacts and potential multidecadal variability of cyclones of tropical origin (CTOs) remain poorly understood, particularly when these events make landfall or pass near Europe (named CTO‐Es) or cause measurable impacts in Europe (named CTO‐EIs).

    Is Europe Under UNSEEN Risk of Cyclones of Tropical Origin? · 2026 · DOI

  • Apart from addressing the accuracy issue, key open questions mainly concern the generalisation of the results from this study. This study can also be regarded as a proof-of-concept anal- ysis, leading naturally to further work on the role of diabatic processes, including but not limited to moist processes, in the evolution of SJs.

    Identifying the diabatic processes driving the evolution of a sting jet: the case of Storm Ciarán · 2026 · DOI

  • However, attempts to generalize convection‐environment relationships across the broad‐scale tropics have produced inconsistent results, partly owing to limits of reanalysis, modeling, and satellite remote sensing, along with suggested regional variability that altogether behoove regionally targeted field campaigns.

    Linking Interregional NASA Airborne Observations of Near‐Storm Environments to Tropical Oceanic Convective Structure · 2026 · DOI

  • Abstract Wintertime explosive cyclones (ECs) pose severe wind-related hazards in the midlatitudes, yet the variability of their wind destructive potential (WDP) over the North Pacific and the dynamics driving this variability remain elusive.

    The leading modes of wind destructive potential variability of wintertime explosive cyclones over the North Pacific · 2026 · DOI

  • Significance Statement This study examines the intraseasonal variability of the tropical easterly jet (TEJ) core position—an essential yet understudied component of the Asian summer monsoon.

    Intraseasonal Northwest–Southeast Oscillation of the Tropical Easterly Jet Core and Its Modulation by Atmospheric Internal Dynamics and Boreal Summer Intraseasonal Oscillation · 2026 · DOI

  • Abstract How tropical cyclone (TC) frequency may change following volcanic eruptions remains debated, owing to limited contemporary eruption samples.

    Post‐Eruption Tropical Cyclone Genesis Potential Change Over the Western North Pacific Modulated by Initial Oceanic Conditions · 2026 · DOI

  • Tropical cyclone (TC) inner-core surface wind vectors underpin intensity forecasting and storm-surge prediction, yet direct observations remain scarce: routine aircraft reconnaissance is confined to the North Atlantic and Eastern Pacific and, even there, samples each storm only episodically.

    Global kilometre-scale tropical cyclone inner-core vector winds from sparse scalar CYGNSS observations · 2026

  • While the model has shown promising results, it has only been validated on a single case study region and set of variables, so future work will focus on further validation by applying the method to a wider range of scenarios and using synthetic training data that will enable more rigorous vali- dation.

    Simulating spatial multi-hazards with generative deep learning · 2026 · DOI

  • However, we consider this beyond the scope of the current work, which aims only to demonstrate the effectiveness of the hazGAN approach. While the temporal problem is generally beyond the scope of this work, it may be possible to represent some types of preconditioning effects by simply using a longer temporal window for the temporal aggregation function hk|t (x).

    Simulating spatial multi-hazards with generative deep learning · 2026 · DOI

  • The time series length was limited to 30 min to avoid non-stationarity issues, which poses a fundamental difficulty as longer time series are required to capture larger turbulent eddies observed at timescales of tens of minutes.

    How well can the Mann model describe typhoon turbulence? · 2026 · DOI

  • Non-stationarity in the eye and rainbands makes it difficult to apply the Mann model to these regions, and stationary turbulence models are not designed to represent the non-stationary nature of tropical cyclones at timescales of 10 min and longer.

    How well can the Mann model describe typhoon turbulence? · 2026 · DOI

  • Whether large spectral energy at k > 10−1 m−1 in the inner-cyclone region and eyewalls is related to tower vibration, tower shadowing, measurement-quality issues, sea spray evaporation, surface roughness changes, or waves could not be verified with available data; more measurements are required.

    How well can the Mann model describe typhoon turbulence? · 2026 · DOI

  • The assumption of stationarity over 10 min or longer intervals is problematic in tropical cyclones due to rapid increases in wind speed and pronounced changes in wind direction, yet the Mann model assumes horizontally homogeneous, stationary turbulence fields.

    How well can the Mann model describe typhoon turbulence? · 2026 · DOI

  • It also simulates higher TC track density over the eastern Pacific and the North Atlantic, while TC tracks are relatively sparse within CPL and SLAB for these regions.

    Tropical Cyclone Activity in the High‐Resolution Community Earth System Model and the Impact of Ocean Coupling · 2018 · DOI

  • As few studies have employed GIS software to analyze typhoon tracks over time and space, our goal is to demonstrate how ArcGIS can be used to map and analyze typhoon tracks to better understand the distribution and movement of these dangerous storms in this heavily populated region.

    An Analysis of Typhoon Tracks Around Japan Using ArcGIS · 2016 · DOI

  • While the physical mechanism remains to be identified, it is tempting to relate this periodicity to the pentadecadal variability identified in the North Pacific Index (NPI) time series.

    A 1,000-Year History of Typhoon Landfalls in Guangdong, Southern China, Reconstructed from Chinese Historical Documentary Records · 2001 · DOI

  • Abstract State‐of‐the‐art climate models are approaching gray‐zone resolutions that can improve the representation of tropical cyclones (TCs), but the extent of these gains remains uncertain.

    Advancing Toward Gray Zone: Evaluation of Tropical Cyclones in Key Basins With the 12.5 km High Resolution CAS FGOALS‐f3 Model · 2026 · DOI

  • The TNA anomaly patterns can be classified into an eastern coastal and a western warm-pool type, but their respective impacts remain unclear.

    Distinct impacts of tropical North Atlantic warming flavors on cross-basin tropical cyclone activity · 2026 · DOI

  • Further research could benefit from incorporating non-stationary frameworks and mesoscale fluctuation methodologies developed in both the wind energy and civil engineering communities for tropical cyclone turbulence generation.

    How well can the Mann model describe typhoon turbulence? · 2026 · DOI

  • The Mann model fails to represent large-scale fluctuations observed in the outer-cyclone region, with the model unable to capture the broad energy-containing range with multiple peaks and flatter spectral top.

    How well can the Mann model describe typhoon turbulence? · 2026 · DOI

  • The analysis is expected to be sensitive to the definition of each typhoon region, and given the complex spatial structure of a constantly evolving and moving tropical cyclone, the region definitions may be an oversimplification.

    How well can the Mann model describe typhoon turbulence? · 2026 · DOI

  • Time to genesis varies widely, even within a five‐member ensemble of 20° simulations, indicating large stochastic variability.

    Tropical Cyclogenesis From Self‐Aggregated Convection in Numerical Simulations of Rotating Radiative‐Convective Equilibrium · 2020 · DOI

  • The changes to the parameterized convective gravity waves (and QBO) are primarily limited to the tropical stratosphere.

    Improved Simulation of the QBO in E3SMv1 · 2019 · DOI

  • It remains to be confirmed that this increase is entirely the consequence of the improved locational and tracking tech- niques of the Bureau of Meteorology.

    Tropical cyclone · 1973 · DOI

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33 open questions have been extracted from the limitations and future-work passages of 397 Tropical and Extratropical Cyclones Research 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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