What this catalogue is
A scoping review systematically identifies and maps the available evidence on a topic, field, concept, or issue. Depending on its objective, it may describe what evidence exists, clarify concepts or boundaries, examine how a topic has been studied, or identify knowledge gaps. This review applies that method to publicly available data resources relevant to the 26 August 2026 hazard cascade.
This catalogue is the item-level public record created from that review. It brings dispersed resources into a consistent structure and describes their provider, provenance, geographic and temporal coverage, access conditions, licence information, production method where documented, limitations, uncertainties, and review status.
The review and catalogue are updated at prespecified intervals or when predefined triggers are met. Completed, partial and unavailable searches are dated in the search register, while the resources and assets indexes show the current public catalogue.
Catalogue coverage
The catalogue covers resources that can support investigation of the event, its causes and consequences, and the wider conditions relevant to hazard, exposure, and risk.
- Data and information domains
- Geographical, geological, geomorphological, hydrological, cryospheric, environmental, infrastructure, and societal data and information.
- Resource types
- Datasets; satellite imagery and derived products; geospatial layers; observations and measurements; APIs and data services; data-bearing technical reports; reproducible code; and official webpages containing unique data.
- Providers
- National and local authorities; scientific and technical agencies; universities and research institutes; international and humanitarian organizations; satellite archives; research and geospatial repositories; mapping services; and project websites.
- Place and time
- The source area in Tibet, the affected corridor in Nepal, and connected areas relevant to the cascade, across pre-event baseline, event, and post-event periods.
Associated review article
The catalogue is being developed as a public companion to the living scoping review article:
The article will describe how resources were identified, screened, and documented, and will report their characteristics, coverage, and the data gaps identified by the review. This catalogue provides the detailed resource inventory, while the interactive WebGIS presents the spatially enabled subset.
How the catalogue is built
Search
Each search is designed for a defined source and purpose. Its interface, strategy, criteria, coverage, date, and results are documented in the public search register.
Assess
Each record is assessed against the predefined eligibility criteria. Until that assessment is complete, it remains under review.
Review
The eligibility decision is independently reviewed. Any disagreement is resolved before the record is marked reviewed or excluded.
Describe
For an eligible resource, information is charted from authoritative sources and organized into consistent fields covering identity, provenance, coverage, access, licensing, methods, validation, uncertainty, and limitations.
Inventory assets
Files, layers, satellite scenes, and service endpoints belonging to a record or resource are listed as assets. Assets remain attached to their parent entry and are not counted as separate resources.
Update
Later searches identify new or changed material. Entries are added, corrected, superseded, or otherwise updated while their status remains explicit.
Review method and reporting standards
PRISMA stands for Preferred Reporting Items for Systematic Reviews and Meta-Analyses. It is a family of reporting guidelines: it specifies what a review should report clearly and transparently, but it does not replace the method used to conduct the review.
JBI and PRISMA therefore have different roles in this project. JBI guides how the scoping review is conducted; the relevant PRISMA guidelines guide how its methods and results are reported.
- JBI
- Provides the methodological framework for defining the review, searching for evidence, selecting sources, charting information, and presenting a scoping review.
- PRISMA-ScR
- The PRISMA extension for scoping reviews. It guides reporting of the review question, eligibility, information sources, selection, charting, results, limitations, and conclusions.
- PRISMA-S
- The PRISMA extension for searches. It supports reproducible reporting of where, when, and how searches were conducted, including complete strategies and any limits used.
- PRISMA 2020 flow
- Provides the structure for reporting how many records were identified, removed as duplicates, assessed, excluded, and included.
- PRISMA-LSR
- Adds reporting items for reviews that are continually updated. Because it was developed primarily for living systematic reviews, only items applicable to this living scoping review are used.
How to read catalogue entries
- Record
- An item identified through a documented search. A record remains under review until its eligibility and required information have been assessed.
- Resource
- An eligible dataset, report, service, codebase, or other data-bearing item represented once in the catalogue, even when several records point to it.
- Asset
- A file, layer, scene, or endpoint associated with a record or resource. It is part of that parent entry rather than an additional resource.
- Reviewed
- The resource has completed eligibility assessment and verification of its required catalogue information. This does not state that it has been included in a manuscript version.
- Under review
- The item has been identified, but its eligibility or required information is still being assessed.
Eligibility
Resources are assessed against criteria defined for the living scoping review.
Eligible
- Datasets, imagery and derived products, geospatial layers, APIs and services, data-bearing technical reports, reproducible code, and official webpages containing unique measurements.
- Resources that inform documentation, analysis, or interpretation of the hazard cascade or relevant conditions within the affected corridor.
- Resources available without charge through direct access, free registration, or a transparent no-cost request route.
- Resources in any language.
Not eligible
- Paid or private holdings and resources with an opaque access process.
- Resources unrelated to the event or the defined cascade corridor.
- Commentary or duplicate news coverage containing no unique data.
Evidence classification
Each reviewed resource is classified by the kind of evidence it provides.
- Observed
- Measurements, field observations, instrument records, or source imagery.
- Interpreted
- Human-interpreted mapping, classification, or analysis derived from observations.
- Automated
- Outputs produced principally through automated detection or classification.
- Modelled
- Simulations, estimates, forecasts, or model-based reconstructions.
- Baseline
- Pre-event or contextual physical and environmental conditions.
- Exposure
- Population, infrastructure, land use, services, or other elements potentially affected.
- Mixed
- A resource containing more than one evidence class.
With respect and solidarity
We extend our deepest sympathy to the people and communities affected by the 26 August 2026 disaster, especially to those who lost family members and loved ones, sustained injuries, were displaced, or suffered the loss of homes, livelihoods, infrastructure, and cultural or natural heritage. We stand in solidarity with the people of Nepal and the Tibet Autonomous Region of China, and with every community across the affected region.
This research is offered in the hope that it can strengthen scientific understanding, risk awareness, preparedness, and future efforts to prevent or mitigate such hazards and catastrophes.