3  Datasets

3.1 Overview

This page documents the datasets used in the Marshall Fire analysis.

3.2 Fire Perimeter

The official Marshall Fire perimeter from Boulder County Open Spatial Data, available as GeoJSON.

Marshall Fire Perimeter

3.3 Landfire Data

Landfire provides fuel, vegetation, and terrain data for fire modeling. The following layers are used:

  • FBFM13/FBFM40: Fire Behavior Fuel Model
  • SLP: Slope (degrees)
  • ASP: Aspect (degrees from north)

3.4 HRRR Wind Data

High-Resolution Rapid Refresh (HRRR) provides hourly wind field data at 3km resolution. Wind components:

  • u: East-west wind component (m/s)
  • v: North-south wind component (m/s)

3.4.1 Wind Animation

HRRR Wind Animation

3.5 Data Sources

Dataset Source Resolution
Fire Perimeter Boulder County ArcGIS Vector
Landfire USGS 30m
HRRR NOAA 3km, hourly