Seite - 631 - in Book of Full Papers - Symposium Hydro Engineering

In order to study the morphological parameters of hydroxylation, two evaporation stations in the upstream (Joestan station) and downstream of the basin (Zidasht station) and Galinak hydrometric station near the Taleghan dam were used as Table 1 and Fig. 2. Table 1: Hydrometric meteorological stations of the Taleghan Basin longitude latitude Digit )m) Name 50-41-46 36-09-29 1931 Zidasht 50-53-43 36-11-19 1984 Joestan 50-44-00 36-10-00 1770 Galinak Figure 2: Location of the studied stations and reservoir dam of Taleghan The time series related to the annual precipitation of the two selected rain- monitoring stations for 1966-2013 was shown in Fig. 3. Also, the summary of their important statistics are given in Table 2. As seen, according to accessible 47-year-old statistics, the annual precipitation of the Zidasht station, which is almost overlooking the Taleghan dam, is about 70 mm less than the Joestan station, at an altitude of about 50 meters. In other statistics, there is a great deal of similarity between the two stations. Figure 3: Time series of annual precipitation of Zidasht and Joestan stations related to water during 1966-1967 to 2012-2013 2.4 MANN-KENDAL TEST The non-parametric Mann-Kendal test, which was presented by Mann in 1945 and then completed by Kendal in 1975, is based on the data rate in a time series. The test is applied to investigate the randomness of the data (the absence of a trend) versus the trend in the hydrological and meteorological time series (Fujihara, 2016; Partal and Kahya, 2005). The advantage of this test is the use of 1080960840720600480360240 Zidasht Joestan Annual Precipitation (mm) Dotplot of Zidasht, Joestan 631