Global topological reference framework for navigable space

Deep Frontiers – Mapping the Real Frontiers of Global Trade

Deep Frontiers is a scientific infrastructure for modelling, simulating and analysing global commodity circulation. It produces realistic simulated maritime routes through a continuous topological graph of navigable space in order to analyse the dependencies, vulnerabilities and reconfigurations that structure material globalisation.

Simulated nominal routes: global structure of simulated maritime circulation.

Scientific Infrastructure at a Glance

Current state of the global topological reference framework developed as part of Deep Frontiers.

Global coverage Continuous reference framework for navigable space.
24 million Navigation nodes in the global graph.
1.4 billion Topological edges describing navigable continuity.
847 ports Current reference network for global simulations.
720 000+ Simulated maritime routes at global scale.
500,000 CPU hours Jean Zay allocation, GENCI–IDRIS.

The current reference network connects 847 strategic ports selected among ≈ 3 700 facilities for global simulations. This resolution results from a methodological choice. The reference framework is scalable and designed to integrate several thousand additional ports or terminals when finer-grained analyses are required.

Scientific infrastructure dedicated to maritime modelling — road and rail network integration currently under development.

From declared trade to simulated circulation

International trade data often describe exchange as country-to-country relations. Deep Frontiers shifts the focus toward the spatial conditions of circulation: ports, corridors, realistic simulated maritime routes, strategic chokepoints and logistics infrastructure.

Spatialising flows

The approach makes it possible to ask not only who trades with whom, but where commodities can circulate, where systems become vulnerable and how routes are reconfigured under constraint.

Identifying functional discontinuities

The decisive frontiers of globalisation also emerge from chokepoints, port interfaces, rerouting patterns under constraint and dependencies organizing critical commodity flows.

A global graph for simulating circulation

The core project is about a continuous topological graph of global navigable space. This reference framework currently includes about 24 million nodes and 1.4 billion edges. It is used to produce realistic simulated maritime routes, compare circulation states and analyse the effects of spatial constraints.

Scientific knowledge production chain

Deep Frontiers transforms declared trade data into spatial knowledge produced through graph-based numerical experiments.

1 Data Trade data · country-to-country matrices
2 Interfaces Countries · ports · network access points
3 Reference model Global topological graph of navigable space
4 Experimentation Route simulation · constrained scenarios
5 Emergent knowledge Geo-economic exposure · functional frontiers · vulnerabilities
Continuous graph Representing the continuity of navigable space at a global/regional/local scale.
Simulated routes Producing realistic simulated maritime routes to spatialise trade-flow circulations.
Constrained scenarios Confronting a simulated nominal state with closure, tension or disruption scenarios.
Systemic effects Identifying detours, rerouting patterns, vulnerabilities and spatial reconfigurations under constraint.

Simulating constraints, analysing reconfigurations

Closures, geopolitical tensions, environmental crises or logistical constraints can deeply impact global circulation. The Bab el-Mandeb case study compares two simulated situations: (a) routes using this strategic passage and (b) reconfigured routes during a blockade.

Each scenario works as a digital simulation of global circulation: constraints are introduced into the reference framework, routes are recalculated, and spatial/geo-economic reconfigurations are analyzed.

Scenario library

Deep Frontiers incrementally builds a scenario library including isolated strategic passages, combined disruptions, cascading perturbations and the emergence of new chokepoints. Some scenarios have already been computed; detailed analyses are currently being prepared for scientific publication.

Bab el-Mandeb — computed scenario Panama corridor — computed scenario Strategic chokepoints — ongoing Combined disruptions — in preparation Cascading perturbations — in preparation Future port creation — in preparation
Nominal routes and detours after the closure of Bab el-Mandeb

Comparison of simulated circulation before disruption and recomputed trajectories under a blockade scenario.

Both maps highlight the structuring role of Bab el-Mandeb as regards the continuity of flows between the Indian Ocean, the Red Sea and the Mediterranean, as well as the systemic diversion effect. These scenarios illustrate the modelling and simulation capabilities of Deep Frontiers. The routes produced are designed to represent realistic maritime trajectories at global scale; however, they do not currently constitute a real-time operational routing service for maritime navigation.

Geo-economic outcomes for commodity flows

The closure of Bab el-Mandeb does not only generate local detours: it reveals new geo-economic polarities and dependency relations. By combining trade data with recalculated maritime routes, Deep Frontiers identifies the trade relations most sensitive to disruptions.

Matrix-based reading

The figures below illustrate the most exposed relations and the distribution of this vulnerability across geo-economic blocs.

Trade and geo-economic exposure

Top exposed relations, affected trade versus extra distance, and the distribution of exposure across blocs.

Understanding dependency and vulnerability

Deep Frontiers offers new insights into the study of supply chains, energy dependencies, food-system vulnerabilities, and disruption effects within global circulation systems.

Research and modeling

Deep Frontiers is open to scientific collaborations with researchers, institutions, and partners interested in maritime networks, global connectivity, spatial modeling, and the analysis of complex systems. We welcome opportunities to exchange ideas, share expertise, develop joint research projects, and explore new applications of our methods and data.

Dialogue with maritime and logistics professionals

We welcome discussions with companies, insurers, reinsurers, logistics operators, port stakeholders, and consulting firms interested in exploring how scientific methods can support strategic analysis, risk assessment, resilience planning, and decision-making.

Application domains

geo-economics geo-strategy Supply-chain resilience Critical infrastructure Trade reconfiguration Energy corridors Food security Critical raw materials Port competition

Team & Contact

Deep Frontiers is a scientific platform conceived and developed by Éric Carroll to model, simulate and analyse global circulation through a continuous graph of navigable space. The associated research program on maritime circulation systems, functional frontiers of trade and geo-economic vulnerabilities is scientifically co-led by Éric Carroll and Régis Darques.

The graph, routing framework, simulated route datasets, HPC workflows, computational pipelines and trade-data integration methods form the methodological and computational core of Deep Frontiers. They support route-based scientific and strategic analyses of trade flows, dependencies, vulnerabilities and spatial reconfigurations.

For scientific discussions, collaboration inquiries or partnership opportunities, please contact us directly.

Éric Carroll

CNRS · UMR ESPACE

Scientific lead and architect of the Deep Frontiers platform · Scientific co-lead of the associated research program · Route-based geo-economic analysis · Trade-flow data integration · Global graph modelling · Route simulation · Scenario design · HPC workflows · Strategic and applied development

Régis Darques

CNRS · UMR ESPACE

Scientific co-lead of the associated research program · Global circulation systems · Functional frontiers of trade · Spatial, cartographic and geo-economic interpretation of trade flows