Application gaps in Earth Science

Representative open questions

Showing 30 of 68 — 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.

• A decision tree to guide precautionary and adaptive tiering in marine nursery identification and management (2026) · doi

  Governance and implementation mechanisms for transitioning from single-sector to ecosystem-based management of nursery areas require explicit evaluation within the tiering framework. The paper cites socioeconomic factors underpinning marine protected area effectiveness but does not specify how knowledge co-production and collaborative governance should modify precautionary tiering decisions.

• 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.

• Remote sensing image enhancement and water eutrophication prediction based on atmospheric-water multimodal information fusion (2026) · doi

  The model predicts chlorophyll concentration at time t+1 based on historical remote sensing images; the capability to perform multi-step ahead eutrophication forecasting (e.g., 7-day or 30-day predictions) using atmospheric-water multimodal information has not been evaluated.

• Regionally important developmental foraging grounds for green turtles and hawksbills in the Southwest Indian Ocean (2026) · doi

  Long-term in-water population monitoring programs for sea turtles in Southwest Indian Ocean foraging grounds should investigate the ecological roles and functional contributions of different life stages (subadults, adults) to inform population recovery targets and conservation strategies beyond simple abundance metrics.

• 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

  The susceptibility mapping identifies concentrated high-risk zones (1.7%) primarily in Wukirsari, yet the paper does not specify monitoring strategies or early warning system parameters tailored to the convergence of rainfall intensity, seismic forcing, and rapid tourism-driven settlement expansion along the Piyungan-Dlingo-Imogiri collector road where new tourism poles are emerging.

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

  While the paper demonstrates spatial contrasts in monthly maximum daily precipitation across Pakistan's hydroclimatic zones using CMIP6 data, it lacks specification for integrating sub-daily precipitation extremes and compound flood-drought events into infrastructure design standards, leaving a gap in translating climate projections to specific engineering thresholds for dams, embankments, and irrigation systems.

• 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.

• Coal seam porosity and water resources estimation based on big data analysis and deep learning models: A case study in the Surat Basin, Australia (2026) · doi

  The paper title emphasizes 'deep learning models' for coal seam porosity and water resources estimation, but the excerpt provided focuses entirely on discrete fracture network methodology, geometric assumptions, and fault/fracture mapping. The integration of deep learning with DFN outputs for regional porosity or water resources prediction is not detailed in this section.

• 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 identifies forest fire prevention as critical given 3,000 annual fires affecting 30,000 hectares in Algeria, with weather exchange as an exacerbating factor, but does not specify which climate variables (temperature, precipitation, humidity) should be integrated into fire risk models or how land-use planning revisions should be spatially designed.

• 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.

• Spatiotemporal evolution and drivers of grassland ecosystem service value in Inner Mongolia (2026) · doi

  The proposed cross-regional ecological compensation mechanisms require operational implementation but lack specific models for delineating beneficiary regions versus externally burdened regions based on grassland ESV spatial patterns. Future work must develop and test empirical frameworks for quantifying ecological service benefits received by downstream beneficiary areas and corresponding compensation obligations based on the identified high- and low-value service area distribution in Inner Mongolia.

• 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.

• Improving forecasts of persistent contrails through ice deposition adjustments (2026) · doi

  The Richardson number threshold of 0.25 represents a critical condition where wind shear within stratified layers reduces supersaturation persistence, but the sensitivity of contrail formation to Richardson number dynamics at regional scales (like Lake Ontario region) has not been systematically evaluated in operational forecasting contexts.

• 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.

• Assessing Environmental Pollution: Quality Control Using CRITIC-WASPAS Methods under Intuitionistic Fuzzy Z-Numbers (2026) · doi

  The paper applies CRITIC-WASPAS and CRITIC-EDAS methods to environmental pollution assessment but does not establish how the results from these two approaches (which yielded different rankings in Table 14) should be reconciled or integrated for practical environmental quality control decision-making.

• 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.