STN-30: Global Simulated River Network at 30-Minute Resolution

STN-30 is a Simulated Topological Network representing the linkage of continental land mass and river drainage basins globally. It was developed for the UNH Water Balance and Water Transport Model (WBM/WTM) to enable horizontal water routing and model validation against observed discharge. The network employs a 30-minute (0.5 degree) spatial gridding suitable for continental to global-scale monthly flow simulations.

Use Cases

• Identifying land mass contributing to individual drainage basins based on the simulated topological network.
• Providing flow directionality for grid cells across continental land mass for water transport modeling.
• Deriving basin-wide characteristics such as stream order, mainstem length, and catchment area.
• Validating water balance and transport models against observed discharge data.

Strengths

• Designed for the UNH Water Balance and Water Transport Model (WBM/WTM), indicating a specific modeling application.
• Provides a specific flow directionality for all grid cells constituting the Earth's continental land mass.
• Uses a 30-minute spatial gridding suitable for continental to global-scale simulations.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Last update date is unknown; freshness unverified.

Provenance

Source

Organization: SCIOPS. Platform: nasa_earthdata.

Collection Method

Simulated network generated for the Global Hydrologic Archive and Analysis System (GHAAS).

Time Range

Temporal coverage is not specified in the description.

Freshness

Last updated: unknown

Geography

Spatial coverage is global, covering the continental land mass of the Earth.