![]() ![]() Copyright © by the American Society of Agronomy, Crop Science Society of America, and Soil Science Society of America, Inc. ![]() The differences are due to various reasons, such as disparities in algorithms at the process level and propagation of the resulting uncertainty into higher-order processes. SWAT parameters were nontransferrable if nutrient was the main output. Sediment prediction was marginally reliable. Our results indicate that only the stream flow result was reliable when the models were upgraded or downgraded between the two versions after calibration. However, the calibrated parameters determined by SWAT2009 and SWAT2012 were noticeably different, due mostly to the enhancements made in SWAT2012. Results indicate that flow and water quality output were well calibrated with both models. Ina-Geoportal sebagai geoportal nasional yang menghubungkan berbagai Kementerian, Lembaga, Provinsi, dan Daerah yang menjadi mitra penghubung simpul Jaringan Informasi Geospasial Nasional (JIGN). ![]() Using a global optimization technique, each model was calibrated for flow, sediment, and nutrient and then tested for transferability of parameters between the models. In this study, the characteristic significance of the enhancements in SWAT code was investigated using the two recent versions, SWAT2009 and SWAT2012. Changes in the SWAT code on a specific process may result in propagating influences in the output of other related processes. In recent years, the Soil and Water Assessment Tool ( SWAT) has experienced upgrades with enhanced functionalities and modeling capacities as it gets to the current version, SWAT2012.
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