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https://hdl.handle.net/11681/9348| Title: | Laboratory measurements of soil electric properties between 0.1 and 5 GHz |
| Authors: | Delaney, Allan J. Arcone, Steven A. |
| Keywords: | Dielectric properties Dielectric measurements Permafrost Frozen ground Soil properties Soils |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | CRREL report ; 82-10. |
| Description: | CRREL Report Abstract: Dielectric measurements have been performed on silt and sand samples from permafrost areas using Time Domain Reflectometry. The sample temperatures were varied from +25°C to -25°C, and volumetric water content was varied between oven-dry and 0.55 g H2O/cm^3. The data were processed for frequencies between 0.1 and 5.0 GHz. The results show a constant K' and a low K" for frequencies up to 1 GHz. A frequency dependence seen on the data above 2 GHz is probably the result of unfrozen, adsorbed water. At moisture levels near saturation at all temperatures, these soils have excellent propagation characteristics for ground-probing radar operating below 0.3 GHz. Massive ice should be easily detectable in permafrost within a few degrees of O°C. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/9348 |
| Appears in Collections: | CRREL Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| CR-82-10.pdf | 542.66 kB | Adobe PDF |  View/Open |