Application gaps in Earth Science

Representative open questions

Showing 30 of 60 — one per source paper, highest-quality first.

• G6-1.5K-MCB: Marine Cloud Brightening scenario design for the Geoengineering Model Intercomparison Project (GeoMIP) in CESM2.1, E3SMv2.0, and UKESM1.1 (2026) · doi

  Regional MCB deployment scenarios (distinct from the global midlatitude pattern tested here) require dedicated multi-model ensemble simulations to establish their climate impacts and serve as reference points for exploratory analyses of local heat mitigation strategies.

• Identifying regions that can constrain anthropogenic Hg emissions uncertainties through modelling (2026) · doi

  The paper references source-receptor relationships under present-day and 2050 emissions scenarios (Corbitt et al., 2011) but does not address how to incorporate projected changes in anthropogenic emissions (cement production, fossil fuel combustion) and cryosphere re-emission dynamics into updated regional constraint frameworks. Integration of time-evolving source inventories from 1978-2021 (Cui et al., 2025) with forward and inverse modeling is not systematically explored.

• Spatial perspective on environmental migration: Empirical insights from a spatiotemporal approach in the United States, 1970–2010 (2026) · doi

  While the paper references spatio-temporal quantitative links between climatic extremes and population flows from the Murray–Darling Basin in Australia (Bakar & Jin, 2018), the integrated spatial framework has not been systematically applied to compare environmental migration mechanisms across different geographic and climatic regions beyond the U.S. context.

• Assessing the outdoor thermal comfort impact of nature-based urban interventions in dense informal settlement upgrading processes: the case of Barrio 20 in Buenos Aires (2026) · doi

  The paper documents that rigid institutional standards and service regulations constrain NbS integration in informal neighborhoods compared to formal urban fabrics, but does not provide a typology of specific regulatory barriers (maintenance clearances, overhead height restrictions, etc.) or propose concrete regulatory reform mechanisms to enable more flexible context-sensitive standards for thermal comfort goals.

• A garden of forking paths: an ecosystem-based fisheries management case study of Florida red tides (2026) · doi

  The scoping process to define species directly and indirectly affected by red tides and to set relevant temporal, spatial, and sectoral bounds is identified as necessary but not detailed; no systematic approach for conducting this ecosystem-wide scoping specific to West Florida Shelf red tide events has been developed or tested.

• BEYOND OIL: AZERBAIJAN’S CLIMATE ACTION IN PRACTICE AND ITS EMERGING LOW-CARBON PATH (2026) · doi

  The paper references Article 6 of the Paris Agreement operationalization for 'strengthening international cooperation and carbon market mechanisms' in Azerbaijan's context, but does not specify which carbon market instruments (bilateral agreements, Article 6.2 transfers, Article 6.4 mechanism participation) Azerbaijan plans to engage with or how credits will be applied to NDC targets.

• Turf Algae Monitoring on Artificial Reefs Using Underwater Photography and ImageJ (2026) · doi

  The relationship between turf algae cover (measured via 2D ImageJ segmentation) and coral recruitment has not been quantified; future studies must link the ImageJ-based percent-cover metrics to measured rates of coral recruit settlement and survival to identify specific sediment load thresholds that trigger management intervention.

• Atmospheric moisture transport anomalies and vegetation response in arid coastal ecosystems: insights from the 2017 coastal El Niño in northern Peru (2026) · doi

  The study identifies that vegetation responses in polar coastal margins versus interior ice-covered regions differ substantially due to temperature versus moisture limitations, but lacks process-level investigation of these region-dependent controls; focused ecological studies on specific climate regimes are needed to examine how water, energy, and phenological constraints jointly regulate LAI-WVT relationships across different ecosystems.

• Earthquake Induced Landslide Identification to Support Landuse Planning in Rapid Growing Settlements Area of Imogiri and Dlingo Sub-District, Yogyakarta (2026) · doi

  Settlement expansion projections to 2026 and 2032 assume continuation of 2013-2022 accessibility-driven growth patterns along road networks, but do not account for how post-seismic infrastructure damage, landslide-triggered road closures, or mandatory building code restrictions in high-susceptibility zones would alter the actual land development trajectory in Imogiri (western slopes near Baturagung Escarpment) and Dlingo.

• Future outlook of monthly maximum daily precipitation in Pakistan’s hydroclimatic zones: high-resolution insights from CMIP6 multimodel data (2026) · doi

  The paper emphasizes embedding climate science into national adaptation policy for Pakistan but does not specify which decision-support indices (e.g., standardized precipitation evapotranspiration index, drought severity classification thresholds) should be derived from CMIP6-projected precipitation to operationalize early warning systems for flood and drought events across different hydroclimatic zones.

• Machine learning driven land surface temperature prediction and urban heat risk assessment in the Gambia (2026) · doi

  Long-term public health and socioeconomic impacts of urban heat islands in the Greater Banjul Area—including effects on street vendors, rental markets, productivity, and thermal comfort in poorly ventilated spaces—have not been quantitatively linked to the predicted LST and UHI intensity values from the machine learning model.

• Comprehensive study of anthropogenically unstable territory around the Rivne NPP, Ukraine (2026) · doi

  While the paper proposes transferring the integrated GIS-InSAR methodology to other Ukrainian territorial communities and critical infrastructure (dams, mining areas, industrial zones), no specific adaptation guidelines are provided for varying geological conditions, subsidence rates, or atmospheric regimes. Future work should establish modular component scaling protocols and region-specific DInSAR parameter optimization for hydroelectric dams and mining subsidence monitoring applications.

• Mechanisms of Intermediate-Depth Seismicity in Eastern Java: Insights from the 2021 Malang Intraslab Earthquake Sequence and Earthquake-Hazard Assessment (2026) · doi

  The paper maps persistent VI hotspots requiring focused attention in risk-reduction planning but does not specify which communities or infrastructure types (hospitals, power plants, schools) should be prioritized or what quantitative thresholds of VI constitute unacceptable risk. Operationalized decision-making frameworks linking VI thresholds to concrete mitigation interventions (retrofitting standards, emergency services positioning) for Java intraslab earthquake hazards are absent.

• Riparian ecosystem condition and impaired floodplain assessment in the Congaree river watershed, South Carolina (2026) · doi

  The study integrates ecological assessments with flood-hazard mitigation and green infrastructure planning through inter-agency coordination, but provides no specific framework, metrics, or case study demonstrating how riparian condition data from the assessment translates into actionable green infrastructure design decisions or flood-risk reduction strategies at the floodplain reach scale.

• ANALYSIS AND MAPPING OF THE VULNERABILITY OF TERRITORIES WITH MAJOR INDUSTRIAL RISKS AND THEIR IMPACTS ON URBAN MANAGEMENT IN THE WILAYA OF ALGIERS PRESENTED (2026) · doi

  The paper recommends decentralizing DRR governance in Algiers and implementing the 13 UNDRR moves (financial plans, building code revision, preparedness), but does not specify which building codes require revision for industrial risk zones or provide metrics for measuring DRR effectiveness across decentralized local authorities.

• Urban Environmental Risk Mitigation using PS-INSAR Time Series and 2D Seismic Analysis in Bekasi Area, Indonesia (2026) · doi

  The proposed spatial-planning framework differentiates risk mitigation strategies by deformation dominance and structural sensitivity but lacks quantitative thresholds for adaptive foundation design and flexible utility system specifications in subsidence-affected zones. Specific engineering design criteria tied to measured subsidence rates and seismic hazard levels must be developed for Bekasi and similar Indonesian cities (Jakarta, Semarang).

• Physical and chemical characterisation of ophthalmic lens-grinding wastewater: uncovering environmental implications (2026) · doi

  The paper identifies the need for adequate waste collection solutions for ophthalmic lens-grinding residues but does not provide specifications for collection methods, storage protocols, or pre-treatment requirements to prevent environmental discharge through wastewater systems.

• Monitoring the Changes of Natural to Urban Environment in Indonesia’s New Capital City Development through Historical Imagery (2026) · doi

  The study documents uneven spatial development patterns between the rapidly urbanized KIPP core and surrounding settlements (Sepaku and Penajam) that preserve traditional Kalimantan landscapes, but does not quantify or model the mechanisms driving this socio-spatial inequality or propose geospatial methods to monitor and predict continued divergence in vegetation loss and cultural landscape fragmentation across these heterogeneous zones.

• Climate change-induced agricultural disasters and policy-based agricultural insurance: empirical findings from China (2026) · doi

  The paper documents that infrastructure-based adaptation (water conservancy) only partially mitigates the cyclical 'warming-drying' trend and flood-drought disasters, yet it does not quantitatively model how combining insurance-based risk transfer with specific adaptation infrastructure investments (e.g., irrigation systems, drought-resistant varieties) could improve long-run agricultural resilience in climate-vulnerable regions.

• Human-induced intensification of sea surface temperature regime shifts threatens global Large Marine Ecosystems (2026) · doi

  The paper demonstrates that coastal temperature rise adjacent to western boundary currents is nonuniform with latitude, but does not quantify how this nonlinear warming pattern alters regime shift detection thresholds or triggers tipping points in specific fisheries. Spatially-explicit modeling linking western boundary current intensification to regionally-variable critical transitions in commercial stocks is needed.

• Convection over Southern Scandinavia: a Modeling Perspective (2026) · doi

  The tobac cloud tracking framework has not been extensively applied to ICON model simulations of Southern Scandinavian convection to systematically quantify cloud lifecycle properties (initiation, growth, dissipation rates) and their sensitivity to microphysical parameterizations during different synoptic regimes.

• The Global Observation System for Mercury dataset for mercury stable isotope signatures in environmental media (2026) · doi

  Mercury isotope fractionation during gas-phase oxidation of elemental mercury vapor by atomic chlorine and bromine has been quantified in laboratory settings, but field-scale validation in coastal and polar atmospheres with variable halogen concentrations and temperature regimes is absent from the current dataset.

• Spatiotemporal Land-Use/Land-Cover Transition and Its Environmental Impact Assessment: A Case Study of Kakching District (2026) · doi

  While the provided LCLUC data is from a broader perspective, its observed trends can be directly relevant to regions like Kakching in Manipur, but the specific local factors driving these trends remain unexplored.

• Understanding the spring cloud onset over the Arctic sea-ice (2026) · doi

  The sensitivity analysis for poleward moisture flux (Appendix J) across different sectoral contours (North Atlantic, Siberian, Pacific, Canadian Archipelago) suggests regional variations, but the implications and mechanisms underlying these sectoral differences are not fully explored.

• Deterministic Seismic Hazard Analysis (DSHA) and Peak Ground Acceleration Mapping in West Java (2018–2024) (2026) · doi

  The study focuses on Peak Ground Acceleration (PGA) mapping but does not provide spectral acceleration analysis or response spectra, which are needed for comprehensive building code development.

• Decadal ocean observations in the Northwestern Mediterranean: insights from the MOOSE-GE cruises (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.

• Toward healthy air quality under CMIP6 scenarios: insights into the compliance with the new WHO guidelines in China (2026) · doi

  National-level compliance statistics can mask substantial regional and urban disparities, highlighting the need for targeted interventions in high-risk cities and sectors within the YRD.

• Tracer Evolution in Multiscale Oceanic Flow Fields (2026) · doi

  The study focuses on a specific simulation period (January-June 2025) with monthly independent simulations; generalization to other time periods, regions, or seasonal variations is unclear.

• Exploratory relationships between selected ground motion parameters and coseismic landslides: A case study of the 2017 Jiuzhaigou MW6.5 earthquake (2026) · doi

  The improvement of 8.4% in coseismic landslide susceptibility prediction using multiple parameters compared to USGS PGA ShakeMap suggests further optimization of parameter combinations is needed.

• Simulating isoprene-NOx interactions in deep convective events using large-eddy simulations with online chemistry (2026) · doi

  While the paper highlights SAM-Chem's potential for investigating chemistry and dynamics at fine spatiotemporal scales, the applicability and transferability of results to other tropical regions and convective regimes remains unexplored.