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Modification of the CREAMS Nutrient submodel


Saleh, Abdul Razak (2011) Modification of the CREAMS Nutrient submodel. In: International Workshop and Conference on Analysis and Applications, 15-19 May 2000, Chiang Mai University, Thailand. (Unpublished)

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Abstract

The CREAMS nutrient submodel was modified to improve the prediction, of the nitrogen loss from a flat agricultural field with a fluctuating water table.The CREAMS nutrient submodal was modified by incorporating a water function in the CREAMS denitrification algorithm.The capability of the CREAMS nutrient submodel and modified CREAMS nutrient submodel in predicting nitrogen loss was evaluated by using linear regression analysis, t-test on the slope and intercept of the regression equation, standard deviation of differences, absolute average differences, and percent error.Observed data from an experimental plot near Baton Rouge, Louisiana, USA were used in this study.The modified model underestimated the total nitrogen losses by 2% compared to 35% overestimation by the CREAMS model.Overall performance of the modified model in predicting nitrogen losses was satisfactory.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: CREAMS model, Nitrogen loss prediction: Modified CREAMS model, nutrient submodel
Subjects: Q Science > QA Mathematics > QA76 Computer software
Divisions: College of Arts and Sciences
Depositing User: Prof. Dr. Abdul Razak Saleh
Date Deposited: 23 May 2013 03:56
Last Modified: 23 May 2013 03:56
URI: http://repo.uum.edu.my/id/eprint/7977

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