Trends of meteorological and hydrological droughts and associated parameters using innovative approaches

Abu Arra, Ahmad; Alashan, Sadık; Şişman, Eyüp

Trends of meteorological and hydrological droughts and associated parameters using innovative approaches

dc.authorid	0000-0003-3696-9967
dc.contributor.author	Abu Arra, Ahmad
dc.contributor.author	Alashan, Sadık
dc.contributor.author	Şişman, Eyüp
dc.date.accessioned	2024-08-27T05:49:19Z
dc.date.available	2024-08-27T05:49:19Z
dc.date.issued	2024
dc.department	İstanbul Medipol Üniversitesi, Mühendislik ve Doğa Bilimleri Fakültesi, İnşaat Mühendisliği Bölümü
dc.description.abstract	Climate change and drought have profound effects on hydro-meteorological series. In addition to spatial, these effects could be on annual, seasonal, monthly, or daily temporal scales. In the literature, seasonal Mann-Kendall and Kendall Tau, Standardized Precipitation Index (SPI), Standardized Precipitation Evapotranspiration Index (SPEI), and Standardized Runoff Index are mostly used to detect seasonal effects (autumn, winter, spring, and summer), despite some restrictive assumption. Innovative Polygon Trend Analysis (IPTA) method developed from Innovative Trend Analysis (ITA) analyzes monthly effects on hydro-meteorological variables without restrictive assumptions. In this study, the IPTA method is revised and developed as Periodic Innovative Polygon Trend analysis (P-IPTA) to analyze hydro-meteorological series in periods of 1, 3, 6, 9, and 12 months instead of one-month duration. The method turns to the IPTA for one-month evaluations. Also, ITA method is improved by adding the frequencies for each drought classification (F-ITA). For the precipitation and water availability (Istanbul, Türkiye) and stream flow (Danube River, Romania) series, the P-IPTA method has been used in addition to the SPI, SPEI, and SDI methods to detect the trends in meteorological and hydrological droughts, and their associated parameters. There are generally decreasing trends, increasing drought frequencies, and decreasing wet event frequencies in the study areas. As the period lengths of the hydro-meteorological series increase, drought becomes more evident. Unlike these methods, the method results are consistent with the F-ITA SPI, SPEI, and SDI graphs and can give drought and wet periods. Similarly, the new P-IPTA method will enable researchers to investigate seasonal effects not only on hydro-meteorological series but also on any variable.
dc.description.sponsorship	Turkish State of Meteorological Service	en_US
dc.identifier.citation	Abu Arra, A., Alashan, S. ve Şişman, E. (2024). Trends of meteorological and hydrological droughts and associated parameters using innovative approaches. Journal of Hydrology, 640. http://dx.doi.org/10.1016/j.jhydrol.2024.131661
dc.identifier.doi	10.1016/j.jhydrol.2024.131661
dc.identifier.issn	0022-1694
dc.identifier.issn	1879-2707
dc.identifier.scopus	2-s2.0-85199172849
dc.identifier.scopusquality	Q1
dc.identifier.uri	http://dx.doi.org/10.1016/j.jhydrol.2024.131661
dc.identifier.uri	https://hdl.handle.net/20.500.12511/12773
dc.identifier.volume	640
dc.identifier.wos	001278147100001	en_US
dc.identifier.wosquality	Q1
dc.indekslendigikaynak	Web of Science
dc.indekslendigikaynak	Scopus
dc.institutionauthor	Şişman, Eyüp
dc.language.iso	en
dc.relation.ispartof	Journal of Hydrology	en_US
dc.relation.publicationcategory	Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rights	info:eu-repo/semantics/openAccess
dc.subject	Climate Change
dc.subject	Drought Indices
dc.subject	Innovative Polygon Trend Analysis (IPTA)
dc.subject	Standardized Precipitation Evapotranspiration Index (SPEI)
dc.subject	Standardized Precipitation Index (SPI)
dc.subject	Streamflow Drought Index (SDI)
dc.subject	Time Series
dc.subject	Trend Analysis
dc.title	Trends of meteorological and hydrological droughts and associated parameters using innovative approaches
dc.type	Article