A GROUND-PENETRATING RADAR STUDY OF GOODREAM PALSAS, NEWFOUNDLAND, CANADA

被引：23

作者：

DOOLITTLE, JA ^{[1
]}

HARDISKY, MA ^{[1
]}

BLACK, S ^{[1
]}

机构：

[1] UNIV SCRANTON, DEPT BIOL, SCRANTON, PA 18510 USA

来源：

ARCTIC AND ALPINE RESEARCH | 1992年 / 24卷 / 02期

关键词：

D O I：

10.2307/1551537

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Ground-penetrating radar (GPR) and computer processing and graphic techniques were used to construct cross-sectional profiles and two-dimensional contour plots of two palsas near Schefferville, Quebec, Canada. Grids of varying sizes were established across a portion of Goodream palsa-fen which contained two palsas, and the areas was systematically sampled with GPR. Data from the radar profiles were computer processed and used to construct cross sections of the palsa mounds and fen. This procedure provided a quick and effective means for determining the thickness of the active layer, for characterizing the extent and depth to permafrost, and for charting the stratigraphic layers within the palsa fen. Compared with traditional methods for characterizing the internal structure and features of palsa, GPR and computer processing are many times faster, less labor intense, and less likely to overlook subsurface features or anomalies.

引用

页码：173 / 178

页数：6

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