Bays and Estuaries Resistance Surface for Coastal Marten Connectivity Analysis

A geospatial raster layer representing bays and estuaries along the Pacific Coast, developed as part of a landscape connectivity model for the coastal marten (Martes caurina humboldtensis). The dataset was created by the Department of the Interior to fill null values in a primary land cover model, assigning a resistance value of 20 to each pixel. It was last updated on March 4, 2026.

Use Cases

• Modeling landscape resistance to movement based on assigned pixel resistance values.
• Integrating supplemental waterbody data with forest cover models based on the described raster calculation process.
• Analyzing barriers to species dispersal based on cumulative resistance of river and estuary pixels.
• Creating connectivity surfaces for coastal mammals based on the described resistance surface components.

Strengths

• Designed to integrate perfectly with the GNN Structure forest model, addressing its null-value estuaries.
• Each pixel in the layer has a defined resistance value of 20.
• Includes a detailed description of the development process, including raster calculation logic.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• The geographic extent is implied but not explicitly defined.

Provenance

Source

Department of the Interior

Collection Method

Manually created 'filler' polygons combined with raster conversion and calculation.

Freshness

Last updated 2026-03-04 08:21:18.097461; freshness should be verified.

Geography

Pacific Coast, likely focusing on Oregon and surrounding areas.