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Effect of Study Duration on Measurements of Water Table Depths
Author(s) -
Zobeck T. M.,
Ritchie A.
Publication year - 1984
Publication title -
soil science society of america journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.836
H-Index - 168
eISSN - 1435-0661
pISSN - 0361-5995
DOI - 10.2136/sssaj1984.03615995004800040049x
Subject(s) - water table , soil water , table (database) , hydrology (agriculture) , environmental science , precipitation , term (time) , geology , soil science , groundwater , meteorology , geography , geotechnical engineering , physics , quantum mechanics , computer science , data mining
Water table depths and precipitation were measured over a 10‐yr period on four fine‐textured soils in central Ohio. Well, moderately well, poorly and very poorly drained soils were observed to compare the effect of study duration on water table depth measurements. Relatively long‐term (10‐yr) average water table levels were compared to shorter‐term 5‐, 4‐, 3‐, 2‐ and 1‐yr studies. Average water table depth measurements of the shorter‐term studies had greater deviations from the long‐term average as soil wetness increased, and study duration decreased during February, March, and May. Three‐year studies are suggested for similar soils to adequately predict water table depth assuming moderate deviations (up to 50 cm) from the long‐term average depth during February, March and May in unusually wet or dry years.