The Influences of Climate Change on the Runoff of Gharehsoo River Watershed

  • Javan K
  • Saleh F
  • Shahraiyni H
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Abstract

The purpose of this study is to survey the impact of climate change on the runoff of Gharehsoo River in northwest of Iran. In this research the outputs of monthly precipitation and temperature data of PRECIS model, which is a regional climate model with 50 × 50 km resolution on the basis of B2 scenario, have been utilized for base (1961-1990) and future (2071-2100) periods. The output results of PRECIS model show that the average temperature of watershed increased up to 2˚C - 5˚C. In addition, future precipitation is more than the base precipitation on January, February, March, September and December. The observed data of 1996-2002 used for calibration of HSPF model and the data of 2003-2004 were used for HSPF validation. The present monthly patterns for precipitation and temperature were estimated using the geostatistical techniques and the future monthly patterns were retrieved by the combination of future monthly PRECIS data and monthly patterns of precipitation and temperature.

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Javan, K., Saleh, F. N., & Shahraiyni, H. T. (2013). The Influences of Climate Change on the Runoff of Gharehsoo River Watershed. American Journal of Climate Change, 02(04), 296–305. https://doi.org/10.4236/ajcc.2013.24030

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