پديد آورندگان :
داﻣﺎدي، سكينه داﻧﺸﮕﺎه زاﺑﻞ - داﻧﺸﮑﺪه آب و ﺧﺎك , دﻫﻮاري، ﻋﺒﺪاﻟﺤﻤﯿﺪ داﻧﺸﮕﺎه زاﺑﻞ - داﻧﺸﮑﺪه آب و ﺧﺎك , دﻫﻤﺮده ﻗﻠﻌﻪ ﻧﻮ، ﻣﺤﻤﺪرﺿﺎ داﻧﺸﮕﺎه زاﺑﻞ - داﻧﺸﮑﺪه آب و ﺧﺎك , اﺑﺮاﻫﯿﻤﯿﺎن، ﻣﺤﺒﻮﺑﻪ داﻧﺸﮕﺎه زاﺑﻞ - ﭘﮋوﻫﺸﮑﺪه ﺗﺎﻻب ﺑﯿﻦ اﻟﻤﻠﻠﯽ ﻫﺎﻣﻮن
كليدواژه :
ﺣﻮزه آﺑﺨﯿﺰ , ﺣﺮﯾﻢ رودﺧﺎﻧﻪ , دوره ﺑﺎزﮔﺸﺖ , دبي , رواﻧﺎب
چكيده فارسي :
ﺳﯿﻼب ﻫﺮ ﺳﺎﻟﻪ ﺑﺎﻋﺚ ﺗﺨﺮﯾﺐ ﺳﺎﺧﺘﺎر اﻗﺘﺼﺎدي و اﺟﺘﻤﺎﻋﯽ ﺟﻮاﻣﻊ و ﺧﺴﺎرات ﻣﺎﻟﯽ و ﺟﺎﻧﯽ ﻓﺮاواﻧﯽ ﻣﯽﺷﻮد. ﯾﮑﯽ از ﻋﻮاﻣﻞ ﻣﻮﺛﺮ در ﺑﺮوز ﺳﯿﻼبﻫﺎ ﺗﻮﺳﻌﻪ ﺷﻬﺮﻧﺸﯿﻨﯽ در اﻃﺮاف رودﺧﺎﻧﻪﻫﺎ ﻣﯽﺑﺎﺷﺪ. در اﺛﺮ ﺗﻐﯿﯿﺮات اﻗﻠﯿﻤﯽ، ﻃﯽ دﻫﻪﻫﺎي اﺧﯿﺮ، اﺳﺘﺎن ﺳﯿﺴﺘﺎن و ﺑﻠﻮﭼﺴﺘﺎن ﺑﺎ آب و ﻫﻮاي ﮔﺮم و ﺧﺸﮏ، ﻣﺴﺘﻌﺪ وﻗﻮع ﭘﺪﯾﺪه ﺳﯿﻞ ﺑﻮده اﺳﺖ. ﻫﺪف از ﭘﮋوﻫﺶ ﺣﺎﺿﺮ، ﭘﻬﻨﻪﺑﻨﺪي ﺳﯿﻼب ﺣﻮزه آﺑﺨﯿﺰ ﺳﺮﺑﺎز ﺑﺎ اﺳﺘﻔﺎده از ﻣﺪل ﻫﯿﺪروﻟﯿﮑﯽ HEC-RAS ﻣﯽﺑﺎﺷﺪ. ﺑﺮاي اﻧﺠﺎم ﭘﮋوﻫﺶ، اﺑﺘﺪا ﺑﺎ ﺗﻮﺟﻪ ﺑﻪ ﺗﺼﺎوﯾﺮ ﻣﺎﻫﻮارهاي، ﻧﻘﺸﻪ ﮐﺎرﺑﺮي اراﺿﯽ و ﺷﻤﺎره ﻣﻨﺤﻨﯽ رواﻧﺎب، ﻣﺪل SCS ﻣﻨﻄﻘﻪ ﺗﻌﯿﯿﻦ ﺷﺪ. در اداﻣﻪ، دﺑﯽ ﺳﯿﻼب ﺣﻮﺿﻪ ﺑﺎ دوره ﺑﺎزﮔﺸﺖﻫﺎي 50 ،25 ،10 و 100 ﺳﺎﻟﻪ ﺑﺎ اﺳﺘﻔﺎده از ﻣﺪل ﻫﯿﺪروﻟﻮژﯾﮑﯽ HEC-HMS ﺷﺒﯿﻪ ﺳﺎزي ﺷﺪ. ﻧﺘﺎﯾﺞ ﺷﺒﯿﻪ ﺳﺎزي ﺑﻪ ﺗﺮﺗﯿﺐ ﻣﻨﺠﺮ ﺑﻪ وﻗﻮع دﺑﯽﻫﺎي اوج ﺳﯿﻼب ﺑﺎ ﻣﯿﺰان 3376/8، 4563/7، 5462/4 و 6359/3 ﻣﺘﺮ ﻣﮑﻌﺐ ﺑﺮ ﺛﺎﻧﯿﻪ ﺑﺮاي دوره ﺑﺎزﮔﺸﺖﻫﺎي 50 ،25 ،10 و 100 ﺳﺎﻟﻪ در ﺣﻮﺿﻪ ﻣﻮرد ﻣﻄﺎﻟﻌﻪ ﺷﺪ. ﺑﻪﻣﻨﻈﻮر ارزﯾﺎﺑﯽ ﮐﺎراﯾﯽ ﻣﺪل در ﻣﺮﺣﻠﻪ واﺳﻨﺠﯽ و اﻋﺘﺒﺎرﺳﻨﺠﯽ از ﺷﺎﺧﺺﻫﺎي ارزﯾﺎﺑﯽ ﻧﺶ-ﺳﺎﺗﮑﻠﯿﻒ و ﻣﺠﺬور ﻣﯿﺎﻧﮕﯿﻦ ﻣﺮﺑﻌﺎت ﺧﻄﺎ اﺳﺘﻔﺎده ﺷﺪ ﮐﻪ ﻧﺘﺎﯾﺞ آنﻫﺎ ﺣﺎﮐﯽ از ﮐﺎراﯾﯽ ﻣﻄﻠﻮب ﻣﺪل اﺳﺖ. در اداﻣﻪ، ﻧﻘﺸﻪ ﭘﻬﻨﻪﺑﻨﺪي ﺳﯿﻼب ﺣﻮزه آﺑﺨﯿﺰ ﺳﺮﺑﺎز ﻣﺤﺪوده ﺷﻬﺮ راﺳﮏ ﺑﺎ دوره ﺑﺎزﮔﺸﺖﻫﺎي ﻣﻮرد ﻧﻈﺮ ﺑﺎ ﮐﻤﮏ ﻣﺪل ﻫﯿﺪروﻟﯿﮑﯽ HEC-RAS ﺗﻬﯿﻪ ﺷﺪ. ﻧﺘﺎﯾﺞ ﻧﺸﺎن داد ﮐﻪ ﺑﺎ دوره ﺑﺎزﮔﺸﺖﻫﺎي 10، 25، 50 و 100 ﺳﺎﻟﻪ ﺑﻪ ﺗﺮﺗﯿﺐ 449/95 ،397/12 ،366/86 و 580/78 ﻫﮑﺘﺎر ﻣﺴﺎﺣﺖ ﭘﻬﻨﻪ ﺳﯿﻼب ﺣﻮزه آﺑﺨﯿﺰ ﺳﺮﺑﺎز ﻣﺤﺪوده ﺷﻬﺮ راﺳﮏ اﻓﺰاﯾﺶ ﻣﯽﯾﺎﺑﺪ.
چكيده لاتين :
Every year, floods destroy the economic and social structure of communities and cause a lot of financial and human losses. One of the effective factors in the occurrence of floods is the development of urbanization around rivers. Due to climate change, in recent decades, Sistan and Baluchestan Province with hot and dry climate, is prone to floods. The aim of the present study is to zoning the flood of Sarbaz Watershed using HEC-RAS hydraulic model. To conduct the research, the SCS model of the area was first determined according to satellite images, land use map and runoff curve number. Then, the flood discharge of the basin with 10, 25, 50 and 100 years return periods was simulated using the HEC-HMS hydrological model. The simulation results resulted in the occurrence of peak flood discharges of 3363.8, 4563.7, 54462 and 6359.3 m3s-1 for return periods of 10, 25, 50 and 100 years in the study basin, respectively. In order to evaluate the efficiency of the model in calibration and validation stage, Nash-Sutcliffe evaluation indices and the mean square error were used, the results of which indicate the optimal performance of the model. Then, the flood zoning map of Sarbaz Watershed in Rusk City was prepared in desired return period with the help of HEC-RAS hydraulic model. The results showed that with the return periods of 10, 25, 50 and 100 years, 366.86, 397.12, 449.95 and 580.78 hectares of flood zone of Sarbaz Watershed in Rask City area will increase, respectively.
