Arctic Daily Thaw and Freeze Depth Model (1998-2000)

Modeled daily thaw and freezing depths for the Arctic terrestrial drainage basin, calculated at a 25 km x 25 km resolution. The dataset spans from September 1998 through December 2000, generated by a finite-difference model for one-dimensional heat conduction with phase change. It is produced by the NSIDCV0 organization and is available in space-delimited ASCII text format via FTP.

Use Cases

• Analyzing seasonal freeze-thaw cycles using daily thaw depth and freezing depth columns.
• Modeling permafrost stability by correlating soil temperature and snow water equivalent inputs.
• Studying Arctic terrestrial hydrology through soil water content and dry-bulk density parameters.
• Validating other geospatial climate models using the 25 km resolution grid data.
• Assessing changes in the active layer thickness over the 1998-2000 period.

Strengths

• Provides a consistent 25 km x 25 km resolution geospatial grid for the entire Arctic terrestrial drainage basin.
• Covers a multi-year time series from September 1998 through December 2000 for temporal analysis.
• Based on a physics-based finite-difference model incorporating key soil and snow parameters.

Limitations

• Exact row count, file size, and specific column names are not provided by any source.
• Sources conflict on the last updated date (2000-12-31 vs. 2026-03-12), suggesting metadata inconsistency.
• Data is limited to a specific historical period (1998-2000) and may not reflect current conditions.

Provenance

Source

NSIDCV0

Collection Method

Generated by a finite-difference model for one-dimensional heat conduction with phase change, using inputs of snow water equivalent, soil temperature, soil dry-bulk density, and soil water content.

Time Range

1998-09 to 2000-12

Freshness

2026-03-12 23:59:43.422366

Geography

Arctic terrestrial drainage basin