Drought Periods Assessment in Eastern Georgia Using SPI-3 Index in 1936-2023

Amiranashvili, A.; Davitashvili, T.; Kharshiladze, O.; Samkharadze, I.; Amilakhvari, D.

Please use this identifier to cite or link to this item: http://openlibrary.ge/handle/123456789/10767

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DC Field	Value	Language
dc.contributor	M. Nodia Institute of Geophysics of I. Javakhishvili Tbilisi State University, Tbilisi, Georgia	en
dc.contributor	Ilia Vekua Institute of Applied Mathematics of Ivane Javakhishvili Tbilisi State University, Tbilisi, Georgia	en
dc.contributor	Institute of Hydrometeorology of Georgian Technical University, Tbilisi, Georgia	en
dc.contributor.author	Amiranashvili, A.	en
dc.contributor.author	Davitashvili, T.	en
dc.contributor.author	Kharshiladze, O.	en
dc.contributor.author	Samkharadze, I.	en
dc.contributor.author	Amilakhvari, D.	en
dc.date.accessioned	2025-12-01T17:05:31Z	-
dc.date.available	2025-12-01T17:05:31Z	-
dc.date.issued	2025	-
dc.identifier.citation	1st International Scientific Conference “Modern problems in Geophysics”. Proceedings, ISBN 978-9941-36-434-1, ISSN 3088-4349, Tbilisi, Georgia, November 6-8, 2025. Publish House of Iv. Javakhishvili Tbilisi State University, Tbilisi, 2025, pp. 121-124.	en
dc.identifier.uri	http://openlibrary.ge/handle/123456789/10767	-
dc.description.abstract	In the work detailed statistical analysis of the duration of drought periods D (months) normalized per decade for four SPI-3 categories (agriculture drought; SPI ≤ -1.0, ≤ -1.5, ≤ -2.0 and ≤ -2.5) in Eastern Georgia based on observations at 18 meteorological stations during 1936-2023 is presented. The statistical characteristics of D values in 1936-2023, 1936-1975, and 1984-2023 were compared. The variability of D values in 1984-2023 compared to 1936-1975 (ΔD) was assessed. In particular, it was found that ΔD values are different at different points. On average, for eastern Georgia, ΔD values for all SPI categories, except ≤ -2.5, are increasing (i.e., an increase in the duration of droughts is observed).	en
dc.language.iso	en	en
dc.subject	Modern problems in Geophysics	en
dc.subject	Proceedings	en
dc.subject	SPI	en
dc.subject	atmospheric precipitation	en
dc.subject	drought categories	en
dc.subject	drought risk	en
dc.subject	climate change	en
dc.title	Drought Periods Assessment in Eastern Georgia Using SPI-3 Index in 1936-2023	en
dc.type	Article	en
Appears in Collections:	1st International Scientific Conference “Modern problems in Geophysics”. Proceedings, Tbilisi, Georgia, November 6-8, 2025

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