Simulation of the monthly runoff in Neyshabur Watershed considering the maximum monitoring stations in SWAT model

Article Type:
Research/Original Article (دارای رتبه معتبر)

Runoff is a crucial hydrological variable that provides vital information for water resource management and planning. In this study, we used the Soil and Water Assessment Tool (SWAT) to simulate monthly runoff in the Neyshabur watershed, Khorasan Razavi province, for a ten-year period from 2000 to 2009. We considered all available rain gauges, synoptic, and evapotranspiration stations within and around the watershed. We calibrated the model parameters and coefficients using the SUFI2 algorithm in the SWAT-CUP software package. We found that the parameters related to the infiltration process, such as CH_K2, CN2, SOL_AWC, and REVAPMN, had the most significant impact on the runoff. We evaluated the model's performance during the calibration and validation periods using parameters such as P-factor, R-factor, Kling-Gupta efficiency (KGE), Nash-Sutcliffe efficiency (NSE), and coefficient of determination (R2). The simulation results showed good agreement with the observed monthly runoff for both the calibration and validation periods. The NSE and R2 values were 0.84 and 0.87, respectively, at the Zarande Andarab station during the calibration period, and 0.74 and 0.78, respectively, during the validation period. The Hosseinabad Jangal station showed even better performance, with NSE and R2 values of 0.93 and 0.93, respectively, during the calibration period, and 0.90 and 0.90, respectively, during the validation period. Comparing our results with previous studies in the same watershed, we found that utilizing a more comprehensive monitoring network and increasing the statistical period of the study can significantly enhance the model's performance and reduce uncertainties in the calibration and validation stages.

Journal of Environmental Resources Research, Volume:11 Issue: 1, Winter-Spring 2023
83 to 97  
دانلود و مطالعه متن این مقاله با یکی از روشهای زیر امکان پذیر است:
اشتراک شخصی
با عضویت و پرداخت آنلاین حق اشتراک یک‌ساله به مبلغ 1,390,000ريال می‌توانید 70 عنوان مطلب دانلود کنید!
اشتراک سازمانی
به کتابخانه دانشگاه یا محل کار خود پیشنهاد کنید تا اشتراک سازمانی این پایگاه را برای دسترسی نامحدود همه کاربران به متن مطالب تهیه نمایند!
  • حق عضویت دریافتی صرف حمایت از نشریات عضو و نگهداری، تکمیل و توسعه مگیران می‌شود.
  • پرداخت حق اشتراک و دانلود مقالات اجازه بازنشر آن در سایر رسانه‌های چاپی و دیجیتال را به کاربر نمی‌دهد.
دسترسی سراسری کاربران دانشگاه پیام نور!
اعضای هیئت علمی و دانشجویان دانشگاه پیام نور در سراسر کشور، در صورت ثبت نام با ایمیل دانشگاهی، تا پایان فروردین ماه 1403 به مقالات سایت دسترسی خواهند داشت!
In order to view content subscription is required

Personal subscription
Subscribe for 70 € euros via PayPal and download 70 articles during a year.
Organization subscription
Please contact us to subscribe your university or library for unlimited access!