Premium
DEVELOPMENT AND VERIFICATION OF A WATER BALANCE MODEL FOR SUBSURFACE DRAINAGE DESIGN 1
Author(s) -
Bhattacharya Ashim K.,
Broughton Robert S.
Publication year - 1979
Publication title -
jawra journal of the american water resources association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.957
H-Index - 105
eISSN - 1752-1688
pISSN - 1093-474X
DOI - 10.1111/j.1752-1688.1979.tb00387.x
Subject(s) - water table , drainage , water balance , hydrology (agriculture) , standard deviation , soil water , table (database) , correlation coefficient , environmental science , precipitation , soil science , groundwater , geology , mathematics , statistics , geotechnical engineering , meteorology , geography , computer science , data mining , biology , ecology
A water balance model was developed to predict daily water table depths in some corn fields with or without subsurface drainage systems, using pertinent soil and water properties and weather data. The model outputs were compared with the recorded data of observed water table depths. Some statistical parameters such as the mean, standard deviation, the coefficient of correlation, the sum of the squares of deviations, and a nonparametric statistical test were used to study the extent of agreement between the observed and the predicted water table depths. No significant difference was found between the distributions of the observed and the predicted water table depths at the 99% confidence level. The study was conducted on some sand and clay soils of the Ottawa‐St. Lawrence Lowlands region in Canada where there is a cool, moist climate and poor natural drainage.