Porsuk Çayı Havzasında akarsu akımlarında gözlenen uzun dönemli eğilimler

Autor:	Faize Sariş, İlyas Sadık Tekkanat
Rok vydání:	2015
Předmět:	Hydrology Trend analysis Geography Data control Statistics Structural basin Rank correlation
Zdroj:	TÜRK COĞRAFYA DERGİSİ.
ISSN:	1308-9773 1302-5856
Popis:	In this study, interannual change in riverflows of Porsuk Creek Basin was revealed by using long-term minimum, maximum and mean riverflow data of stations located within the basin. Statistical methods were applied to hydroclimatological data which are grouped as (1) data completion , (2) data control, (3) trend analysis and (4) correlation analyses. By adopting this multiple-method use, it is aimed to increase reiability of results and also reveal several varability components (inhomogeneity, persistence, periodicity, trend) in the time series. Significant decreasing trends were detected in riverflow data (both in mean, minimum and maximum series) for the 42 years period between 1970 and 2011. These significant decreasing trends were observed at 56.7% of mean riverflows, 48.3% of minimum riverflow and 65% of maximum riverflows at 0.05 significance level. According to results of test graphs of Mann-Kendall Rank Correlation, the starting point for detected negative trend in the time series is concentrated at 1980s. Keywords: Hydroclimatology, data completion, trend analysis, Porsuk Creek Basin.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::ad156066254c475500e1964a3237b06a https://doi.org/10.17211/tcd.44842 Zobrazit plný text záznamu