Investigation of spatiotemporal variability of some precipitation indices in Seyhan Basin, Turkey: monotonic and sub-trend analysis

Cihangir Koycegiz () and Meral Buyukyildiz ()
Additional contact information
Cihangir Koycegiz: Konya Technical University
Meral Buyukyildiz: Konya Technical University

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards, 2023, vol. 116, issue 2, No 35, 2244 pages

Abstract: Abstract Irregular precipitation regimes have important effects on the increase in the incidence and severity of meteorological disasters, the use of water resources, the decrease in the variety and amount of agricultural products, and on biodiversity. Therefore, investigating the temporal and spatial variations of precipitation is vital important in the future planning and management both water resources and of agricultural activities. In this study, it is aimed to investigate annual and seasonal time scales the spatial variability and temporal trends of concentration, seasonality and aggressiveness of precipitation in Seyhan Basin (Turkey), which has different topography and climate characteristics. For this purpose, nonparametric indices such as the Precipitation Concentration Index (PCI), Seasonality Index (SI) and Modified Fournier Index (MFI) were used. To calculate these indices, monthly precipitation data of 7 stations for the period 1970–2019 were used. While monotonic trends in the PCI, SI and MFI series were analyzed using the classical Mann–Kendall test, sub-trends were examined using Onyutha's test, which is an innovative method. The presence of monotonic and sub-trends was evaluated at the 5% significance level. Analyses performed on both annual and seasonal scales showed that generally higher index values were obtained at stations in the south of the basin and lower indices values were obtained in other parts of the basin. The results of MK and Onyutha trend tests applied to annual total precipitation and PCI, SI and MFI values are similar. In general, insignificant positive trends were determined in the annual total precipitation and index values at the stations in the south of the basin, while insignificant negative trends were determined in the other regions.

Keywords: Erosivity; Mann–Kendall; Onyutha trend test; Precipitation concentration; Seasonality; Seyhan Basin (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

Downloads: (external link)
http://link.springer.com/10.1007/s11069-022-05761-6 Abstract (text/html)
Access to the full text of the articles in this series is restricted.

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:spr:nathaz:v:116:y:2023:i:2:d:10.1007_s11069-022-05761-6

Ordering information: This journal article can be ordered from
http://www.springer.com/economics/journal/11069

DOI: 10.1007/s11069-022-05761-6

Access Statistics for this article

Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards is currently edited by Thomas Glade, Tad S. Murty and Vladimír Schenk

More articles in Natural Hazards: Journal of the International Society for the Prevention and Mitigation of Natural Hazards from Springer, International Society for the Prevention and Mitigation of Natural Hazards
Bibliographic data for series maintained by Sonal Shukla () and Springer Nature Abstracting and Indexing ().