Abstract

The objective of this paper is to determine the trend and to estimate the streamflow of the Gökırmak River. The possible trend of the streamflow was forecasted using an autoregressive integrated moving average (ARIMA) model. Time series and trend analyses were performed using monthly streamflow data for the period between 1999 and 2014. Pettitt’s change point analysis was employed to detect the time of change for historical streamflow time series. Kendall’s tau and Spearman’s rho tests were also conducted. The results of the change point analysis determined the change point as 2008. The time series analysis showed that the streamflow of the river had a decreasing trend from the past to the present. Results of the trend analysis forecasted a decreasing trend for the streamflow in the future. The decreasing trend in the streamflow may be related to climate change. This paper provides preliminary knowledge of the streamflow trend for the Gökırmak River.

Details

Title
Trend analysis and forecasting of the Gökırmak River streamflow (Turkey)
Author
Arslan, Gökhan 1 ; Kale, Semih 2 ; Adem Yavuz Sönmez 3 

 Department of Fishing and Fish Processing Technology, Fisheries Faculty, Atatürk University, 25000 Erzurum, Turkey 
 Department of Fishing and Fish Processing Technology, Faculty of Marine Sciences and Technology, Çanakkale Onsekiz Mart University, 17020 Çanakkale, Turkey 
 Department of Basic Sciences, Fisheries Faculty, Kastamonu University, 37100 Kastamonu, Turkey 
Pages
230-246
Publication year
2020
Publication date
2020
Publisher
Walter de Gruyter GmbH
ISSN
1730413X
e-ISSN
18973191
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2446741798
Copyright
© 2020. This work is published under http://creativecommons.org/licenses/by-nc-nd/4.0 (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.