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https://hdl.handle.net/11681/9153| Title: | Development of an airborne MMW FM-CW radar for mapping river ice |
| Authors: | Thayer School of Engineering. Dartmouth College. Yankielun, Norbert E. Ferrick, M. G. Weyrick, Patricia B. |
| Keywords: | Airborne High resolution radar Ice profiling Millimeter waves Radar remote sensing River ice Lake ice FM-CW radar Continous wave radar Glaciology |
| Publisher: | Cold Regions Research and Engineering Laboratory (U.S.) Engineer Research and Development Center (U.S.) |
| Series/Report no.: | CRREL report ; 93-1. |
| Description: | CRREL Report Abstract: Analyses of a river's freezeup ice cover stability and its breakup rely on detailed knowledge of the cover's thickness and the variability of that thickness. A high-resolution, millimeter wave (26.5- to 40-GHz) Frequency Modulated-Continuous Wave radar with real-time data acquisition and digital signal processing and display capability was deployed from a low-flying (3-10m) helicopter to continuously acquire, process and display data during an ice thickness profiling survey of a 24-km study reach. A nominal sheet ice thickness of 50 cm, occasional areas of new ice sheet as thin as 5 cm, open leads, and massive ice accumulations on the order of 5 m thick were encountered. Radar profiling data agreed with ground truth from borehole measurements of the sheet ice, and provided a more detailed view of the ice conditions than that obtained from a low altitude video survey. The radar system provided rapid, safe and accurate data acquisition, allowing detailed mapping of the ice conditions throughout the reach. |
| Rights: | Approved for public release; distribution is unlimited. |
| URI: | http://hdl.handle.net/11681/9153 |
| Appears in Collections: | CRREL Report |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| CRREL-93-1.pdf | 1.32 MB | Adobe PDF |  View/Open |