Colorado, Idaho, and Utah bare Earth digital elevation models acquired by scanning lidar in September 2021. This data set is part of the SnowEx 2021 campaign and provides DEMs at a 0.5 meter spatial resolution, derived from point cloud digital terrain models. The data were produced by NSIDC_CPRD alongside vegetation height and snow depth datasets.
Use Cases
- Model snow depth distribution based on underlying terrain elevation.
- Analyze vegetation height relative to ground elevation.
- Generate high-resolution terrain maps for hydrological studies.
- Assess topographic features for avalanche risk modeling.
- Calibrate satellite-derived elevation data with lidar ground truth.
Strengths
- DEMs have a 0.5 meter spatial resolution.
- Data covers multiple areas across three U.S. states.
- Produced alongside complementary vegetation height and snow depth datasets.
Limitations
- Last updated 2021-09-21 23:59:59.999000; freshness should be verified.
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count and file formats are unknown, which may limit suitability assessment.
Provenance
- Source
- NSIDC_CPRD
- Collection Method
- Acquired by a scanning lidar system and derived from point cloud digital terrain models.
- Time Range
- September 2021
- Freshness
- 2021-09-21 23:59:59.999000
- Geography
- Multiple areas in Colorado, Idaho, and Utah.