FIFE Soil Impedance: Daily Dielectric Measurements

Five locations in the FIFE study area provided daily soil dielectric property measurements during the 1987 Intensive Field Campaigns. The dataset compares calculated volumetric water content from impedance probes against traditional gravimetric soil samples. This time-series data captures small-scale diurnal moisture variations that traditional sampling methods would miss.

Use Cases

• Validating indirect soil moisture measurement methods based on dielectric constant data.
• Analyzing diurnal soil moisture variations using high-frequency time-series impedance data.
• Comparing volumetric water content calculations from impedance probes against gravimetric measurements.
• Characterizing soil moisture distribution patterns across a study area.

Strengths

• Provides a consistent time-series from five distinct locations, enabling spatial-temporal analysis.
• Includes a direct comparison between impedance probe data and traditional gravimetric measurements.

Limitations

• Column names and specific data structure are unknown, limiting immediate usability.
• Conflicting metadata exists: one platform lists a last update in 2026, while another indicates the data is from 1989.
• Dataset size, row count, and exact file formats are not clearly specified across sources.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Daily measurements of soil dielectric properties obtained with impedance probes at fixed locations.

Time Range

1987

Freshness

2026-04-09 21:55:19.836019

Geography

FIFE study area