نوع مقاله : مقاله پژوهشی
نویسندگان
1 استاد/ گروه مهندسی آب، دانشکده عمران، دانشگاه تبریز
2 دانش آموخته کارشناسی ارشد/ مهندسی و مدیریت منابع آب، دانشگاه تبریز و دانشجوی دکتری مهندسی و مدیریت منابع آب، دانشگاه تهران .
چکیده
کلیدواژه‌ها
عنوان مقاله [English]
نویسندگان [English]
Groundwater resources due to lately affected by climate changes and precipitation fluctuations are valuable. Given that the interaction between climate and groundwater components are more complicated than interaction between climate and surface waters components, therefore investigation of changes in groundwater has an important role in planning and sustainable water resources management In this research, trend of groundwater, precipitation and stream flow time series in monthly, seasonal and annual time scales and dominant periods of trend in original time series for stations located in Azarshahr plain, East Azerbaijan Province and part of the watershed of Urmia Lake were found by using the hybrid Mann-Kendall method with wavelet transform during 45 years. Results showed that, all the stations have a downward trend for all the time scale studied. Accurately, in the results, 16 months, 6 months and 8 years periods were detected as dominant periods for groundwater time series in monthly, seasonally and annual scales, respectively. According to sequential Mann-Kendall results, it can be obtained that a decreasing trend starts from 1378 in the stations. In addition, Sen’s method was used to confirm the proposed MK test and its accuracy was confirmed.
کلیدواژه‌ها [English]
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