TY - JOUR TT - Investigation Of Seasonal Variation and Trend Effect in Stochastic Model Selection AU - Hınıs, Mehmet Ali PY - 2011 DA - February JF - Reserach Journal of Agricultural Sciences JO - Tarım Bilim. Araşt. Derg. (online) PB - Anatolia Bilim Akademisi WT - DergiPark SN - 1308-027X SP - 69 EP - 75 IS - 1 KW - Stochastic model KW - AR KW - ARMA KW - SAR KW - SARMA KW - trend and seasonal effect KW - estimation and diagnostic checking N2 - Stochastic models are frequently used methods in hydrology. These models are used to produce longer time period synthetic data having the same statistical parameters of limited observed data. Hydrologic data have usually seasonal variation and trend factors which effect to determine the best fit stochastic model.The effects of these parameters on various stochastic models were investigated in this study by using monthly averaged flow data of Demirci flow observation station in Konya basin in the present study. In various orders of AR, ARMA, SAR and SARMA models were evaluated for different seasonal effect and trend factor. In the second part of the study, several criteria were compared to determine the best fit model UR - https://dergipark.org.tr/en/pub/tabad/issue//385103 L1 - https://dergipark.org.tr/en/download/article-file/412832 ER -