Depth to Ground-Water Table by Remote Sensing

by Mohamed Abdel-Hady, (M.ASCE), Prof. of Civ. Engrg.; Oklahoma State Univ., Stillwater, OK,
Harlan H. Karbs, U.S. Army Corps of Engrs.; Fort Worth Dist., TX,

Serial Information: Journal of the Irrigation and Drainage Division, 1971, Vol. 97, Issue 3, Pg. 355-367

Document Type: Journal Paper


This study is aimed at investigating the potential of IR imagery, as a remote sensing technique, in detecting and surveying depth to ground-water table. This was accomplished by studying the variation of soil radiant energy from two types of soils in the 8 μ–14μ infrared spectral band as affected by depth to ground-water table in a specially designed apparatus. Results of experiments indicated that: (1) differences in depth to ground-water table, within the range used in experiment 0 ft to 4 ft level, in both types of soils used, was detectable by ground surface radiance measurements in the 8 μ–14μ wave band; (2) during the period of investigation (summer), radiant intensity was maximum from 2 p.m.–4 p.m.; (3) maximum radiant intensity difference resulting from variations to depth of water table also occurred during this period from ≃ 2 p.m.–4 p.m.; and (4) the differences in radiance during the peak period were significant, suggesting excellent potential applications of most of the high-class unclassified commercial imaging systems in detecting and surveying depth to ground-water table and soil moisture variations.

Subject Headings: Radiation | Groundwater | Remote sensing | Soil surveys | Soil classification | Soil water | Wave measurement | Hydrographic surveys

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