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Open research questions in Climate variability and models

1,783 gap statements mined from Climate variability and models papers in our 7.9M-paper local library, which holds 8,100 papers on the topic — drawn mostly from each paper's own stated research gap, future-work, challenge and limitation notes, and its abstract. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one.

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What the literature leaves open

  • The paper identifies a gap in traditional forecasting approaches that rely on statistical or structural models and do not account for uncertainty surrounding the ability and willingness of the world to adapt to climate change and reduce emissions. It highlights the need for a framework that allows constraints to vary within certain thresholds.

    Taking the highway or the green road? Conditional temperature forecasts under alternative SSP scenarios · 2026 · DOI

  • There is a need to understand the atmospheric drivers of extreme rainfall in KwaZulu-Natal. Prior work has focused on seasonal rainfall totals rather than extreme rainfall events. The study aims to address this gap by investigating atmospheric drivers of extreme rainfall over KwaZulu-Natal during the 1990–2020 period.

    Spatiotemporal Variability and Multiscale Drivers of Extreme Rainfall in KwaZulu-Natal, South Africa · 2026 · DOI

  • Statistical uncertainties remain large for the most extreme and long-lasting events. The relation between double jet states and heatwaves is less clear in ERA5. The study is based on simulations with the CESM1.2 model and ERA5 data.

    Rare events algorithm study of extreme double jet summers and their connection with heatwaves over the Northern Hemisphere · 2026 · DOI

  • The explicit nature of the relation between large scale circulation patterns and extreme heatwaves is still not known. The mechanisms by which large scale circulation patterns are related to extreme heatwaves are not well understood. There is a need for improved statistics of rare summer-long double jet states.

    Rare events algorithm study of extreme double jet summers and their connection with heatwaves over the Northern Hemisphere · 2026 · DOI

  • Classical HMM applications to rainfall have a conditional-independence limitation. Prior work has not adequately addressed the challenges of regime-aware rainfall prediction in Chile's hydroclimate. There is a need for a hierarchical framework that explicitly separates large-scale regime dynamics from local spatial dependence.

    Characterizing Climate-Driven Shifts in Chilean Rainfall Regimes with a Hybrid Hidden Markov–Copula Framework · 2026 · DOI

  • The paper identifies the need for a review of the PROMES Regional Climate Model's development and contributions. The paper highlights the importance of regional climate models in studying regional climate features. The paper notes the lack of a comprehensive synthesis of the model's development, performance, and contributions.

    The PROMES Regional Climate Model: Three Decades of Development and Contributions to Regional Climate Ensemble Research · 2026 · DOI

  • The study aims to address this gap by analyzing a 20-year radiosonde dataset and ERA5 reanalysis. The study examines the large-scale atmospheric drivers of the event.

    The Record-Breaking Low-Level Jet Event in Subtropical South America During the Winter of 2026 · 2026 · DOI

  • There is a need to assess long-term climate changes in Malawi and Zambia. The study identifies a gap in understanding the impact of climate change on precipitation, temperature, and potential evapotranspiration in the region.

    Spatio-Temporal Trends in Precipitation, Temperature, and Extremes: A Study of Malawi and Zambia (1981–2021) · 2024 · DOI

  • This study presents a multi‐decadal (1975–2024) analysis of daily temperature and precipitation records from seven long‐term meteorological stations in Belize, a country where systematic, station‐based ENSO assessments remain scarce.

    Beyond ENSO : Temperature, Rainfall Variability and Emerging Climate Risks in Belize · 2026 · DOI

  • Despite the widespread assumption that El Niño‐Southern Oscillation (ENSO) dominates climate variability across Central America, its localized influence on individual nations remains poorly quantified.

    Beyond ENSO : Temperature, Rainfall Variability and Emerging Climate Risks in Belize · 2026 · DOI

  • While long‐term trends and interdecadal variability of NSWS have been extensively investigated in China, the causes of its interannual variability remain insufficiently understood.

    Interannual Changes in Springtime Near‐Surface Wind Speed Over Eastern China Associated With the Nonlinear Combined Effects of Large‐Scale Circulation Changes · 2026 · DOI

  • On decadal‐to‐multidecadal timescales, the relative contributions to Atlantic multidecadal variability (AMV) from internal variability versus external forcing remain debated, with emerging evidence suggesting externally forced signals may be more significant than previously thought.

    North Atlantic Sea Surface Temperature Variability: Impacts, Mechanisms, and Challenges · 2026 · DOI

  • To address the gaps in understanding the spatiotemporal changes of sub-daily precipitation extremes (SPEs) across different timescales and the quantitative role of urbanization, the study takes the Middle‒Lower Yangtze River (MLYR) as a case study region to quantify changes in SPEs during the summers (June–August) from 1971 to 2022 and explores the underlying mechanisms.

    Considerable increase in sub-daily precipitation extremes and its possible causes across the middle‒lower reaches of Yangtze River · 2026 · DOI

  • Despite their substantial impacts, the spatiotemporal characteristics of WEPEs remain insufficiently understood, hindering effective risk assessment and management.

    Widespread extreme precipitation events and associated population exposure have escalated rapidly across China during 1979–2024 · 2026 · DOI

  • A systematic global assessment of dominant drivers and their interactions is still lacking.

    Dominant drivers for geographic patterns and multi-scale variability of global land‒atmosphere coupling · 2026 · DOI

  • Interdecadal variability in China’s summer rainfall is commonly attributed to ocean forcing, but the role of upstream land heating across the Tibetan, Iranian, and Mongolian Plateaus remains unclear.

    Sensible heating over Asian plateaus is comparable to ocean forcing in modulating China’s interdecadal rainfall patterns · 2026 · DOI

  • However, the difference in probability acceleration between HHE and DHE over global land monsoon regions, and their anthropogenic attribution, remain unclear.

    Increasing probability of humid-heat extremes outpaces that of dry-heat extremes in global land monsoon regions under anthropogenic warming · 2026 · DOI

  • A unified framework for the systematic and simultaneous evaluation of CMIP6 models in reproducing warming responses across the Arctic, Tibetan Plateau, and Antarctic remains lacking.

    Revisiting the CMIP6 simulations of the most-concerned surface air temperature changes at the Earth's three poles · 2026 · DOI

  • However, whether state-of-the-art climate models capture the changes in SH atmospheric circulation remains unclear.

    Evaluation of CMIP6 models in simulating the trend slowdown of the summer Southern Annular Mode · 2026 · DOI

  • Northwest China (NWC), a representative arid-semiarid region, exhibits a particularly marked warming and wetting trend in recent decades; however, large CMIP6 ensemble spreads limit projection credibility, while systematic quantification of uncertainty sources and the effect of model selecting remains insufficient.

    Source of uncertainty in future warming and wetting projections over Northwest China · 2026 · DOI

  • While conventional LIMs have proven effective in understanding, reproducing, and forecasting climate variability, they are often limited by assumptions of stationarity or memoryless white-noise random forcing.

    Noise Persistence in a Cyclostationary Linear Inverse Model Framework and Its Impact on ENSO Evolution and Prediction Skills · 2026 · DOI

  • Further research could explore the application of the hybrid framework to other regions or time periods - The study suggests exploring the use of other uncertainty quantification metrics - The framework could be extended to incorporate additional atmospheric covariates…

    Characterizing Climate-Driven Shifts in Chilean Rainfall Regimes with a Hybrid Hidden Markov–Copula Framework · 2026 · DOI

  • Sustainability, seen as planning for model code and simulation archives, including an open-source release strategy, - participation in coordinated ensemble…

    The PROMES Regional Climate Model: Three Decades of Development and Contributions to Regional Climate Ensemble Research · 2026 · DOI

  • Simulation-only study, - Limited to 1950-2013, - Does not account for other factors that may influence Sahel…

    Contrasting impacts of Atlantic and Pacific decadal SST variability on regional Sahel precipitation · 2026 · DOI

  • Investigate the impacts of other climate modes on Sahel precipitation, - Examine the role of regional land-atmosphere feedbacks in modulating the effects of the AMV…

    Contrasting impacts of Atlantic and Pacific decadal SST variability on regional Sahel precipitation · 2026 · DOI

Most-cited papers in Climate variability and models

Most recent work

Find a gap in your own Climate variability and models sub-topic

This page shows what the Climate variability and models literature already flags as unresolved. To narrow it to your specific question, search the Research Gap Finder: the search is free with a free account and lists the papers closest to your topic first. Unlocking that topic (50 credits, charged once) fills the comparison table from our 7.9M-paper local library and writes the gaps from its rows.

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Open questions raised by papers listed on this page include: (1) There is a need to understand the atmospheric drivers of extreme rainfall in KwaZulu-Natal (“Spatiotemporal Variability and Multiscale Drivers of Extreme Rainfall in…”, 2026); (2) The mechanisms by which large scale circulation patterns are related to extreme heatwaves are not well understood (“Rare events algorithm study of extreme double jet summers and their connection…”, 2026); (3) There is a need for a hierarchical framework that explicitly separates large-scale regime dynamics from local spatial dependence (“Characterizing Climate-Driven Shifts in Chilean Rainfall Regimes with a Hybrid…”, 2026); (4) The paper notes the lack of a comprehensive synthesis of the model's development, performance, and contributions (“The PROMES Regional Climate Model: Three Decades of Development and…”, 2026); (5) While long‐term trends and interdecadal variability of NSWS have been extensively investigated in China, the causes of its interannual variability remain insufficiently understood (“Interannual Changes in Springtime Near‐Surface Wind Speed Over Eastern China…”, 2026). 1,783 gap statements have been mined from Climate variability and models papers in our 7.9M-paper local library, which holds 8,100 papers on the topic; the gaps come from whichever of those papers state one. They are mostly the research gaps the authors state and the papers' abstracts, plus future-work, limitations and challenges passages. The ones listed below are a selection still marked open; each names the study that raised it, with a DOI link where the paper has one, so you can read the original claim in context.

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