Muğla İlinde 1960-2018 Dönemi Kuraklık Analizi

Abstract

The objective of this study is to investigate the meteorological, agricultural and hydrological drought of Muğla city for the period of 1960-2018 as well as to analyse precipitation trend. Monthly total precipitation data for the period of 1960-2018 belonging to Muğla meteorological station obtained from the Turkish State Meteorological Service were used in this study. Run (Swed-Eisenhart) homogeneity test, Mann-Kendall method and Standardized Precipitation Index method were applied to precipitation data. In addition, the severity and duration of droughts were examined. As a result, long years' precipitation and drought trend were demonstrated for Muğla city. The annual total precipitation for Muğla city in the period 1960-2018 was found to be 1180.2 mm. The lowest amount of precipitation in the study period was 564.6 mm in 2008 and the highest amount of rainfall was 1805 mm in 1969. In the province of Muğla, the number of the humid months was slightly higher than the other classes. In the province of Muğla, the numbers of the mildly humid and moderately dry months were slightly higher than the other classes. It was seen that the numbers of humid and dry months in Muğla province were mostly clustered in mildly humid, moderately humid, mildly dry and moderately dry classes. In addition, analyzes show that drought is less repetitive as the time period increases, but has a longer duration effect. Total drought severity and total drought duration of Muğla station on scales basis coincided with almost similar years. However, in the 3-monthly Standardized

Boyabat Yöresi Yıllık Kuraklıklarının Farklı Meteorolojik Kuraklık İndisleri Kullanılarak Araştırılması

“…Turkey, which is located in the middle belt with semi-arid climate characteristics, is struggling with drought. Researchers investigate and determine the effects of drought all over the country (Türkeş, 1996;Kömüşçü, 2001;Yıldız, 2009;Kıymaz, Gunes, & Asar, 2011;Hınış, 2013;Oğuztürk & Yıldız, 2014;Akar, Oguz, & Yurekli, 2015;Gümüş, Başak, & Oruç, 2016;Dikici, 2019;Beden, Demir, & Ülke Keskin, 2020;Boustani & Ülke Keskin, 2020;Karabulut, 2020;Oğuz, Pekin, & Çamalan, 2021). Sırdaş and Şen (2003) reported in their study that was conducted for the 1930-1990 period that the severity of droughts gradually increased in Turkey.…”

Trend analysis of agricultural drought and crop yield in Eastern Thrace provinces of Turkey

“…Gocic and Trajkovic (2013) analyzed the trend of SPI in Serbia. In Turkey, Oguz et al, (2021) examined the trend and drought in Mugla region. Nouri and Homaee (2019) applied gamma and log-logistic distribution in their study for SPI and SPEI and concluded that SPI do not correlate well with SPEI in arid regions.…”

“…Cumulative probabilities calculated by the distribution function was then converted to SPI values, which has a standard deviation of 1 and a mean of 0 (McKee et al, 2013). The trend analysis was carried out using a non-parametric method (M-K test) and Sen's slope method (Oguz et al, 2021). The SPI values were further related with the yields of wheat, sunflower and barley crops of 2004-2021 using simple regression technique.…”

“…This situation shows that an agriculturally wet situation prevails in Tekirdag (Table 2). The studies of Dabanli (2019), Kankal andAkcay (2019), andOguz et al, (2021) showed that the cities of Turkey were more affected by drought. It was understood that humidity was observed in places where the Black Sea climate was dominant.…”