Spatiotemporal statistical analysis of water area changes with climatic variables using Google Earth Engine for Lakes Region in Türkiye

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dc.contributor.authorYilmaz O.S.
dc.date.accessioned2024-07-22T08:02:50Z
dc.date.available2024-07-22T08:02:50Z
dc.date.issued2023
dc.description.abstractIn this study, trend analysis of the lake surface areas was performed on the Google Earth Engine (GEE) platform in the period of 1985–2022 with Landsat 5/7/8/9 (TM) (ETM +), and (OLI) satellite images. The study analyzed 10 lakes, including Acigol, Aksehir, Beysehir, Burdur, Egirdir, Ilgin, Isikli, Karatas, Salda, and Yarisli in the Türkiye Lakes Region. In this analysis, the normalized differentiated water index was calculated for each of the 3147 satellite images, and water surfaces were extracted from other details using Otsu’s threshold method. In the study’s accuracy, the overall accuracy and F1-score values were calculated to be over 90% for all lakes. Moreover, the relationship between the changes in the surface areas of the lakes was evaluated using correlation analysis, with the sea surface temperature obtained from the NOAA satellite and the evaporation, temperature, and precipitation parameters obtained from the Era-5 satellite being used. In addition, the change of the area on the lake surface was analysed using Mann–Kendall (MK), Sen’s slope, and sequential MK test statistics. During the 37 years between 1985 and 2022, there was no significant change in the Acigol surface area, but a slight increasing trend was observed. Decreases of 76.07, 4.68, 41.77, 5.44, 37.56, 28.97, 78.65, 7.26, and 81.02% were determined in the lakes of Aksehir, Beysehir, Burdur, Egirdir, Ilgin, Isikli, Karatas, Salda, and Yarisli, respectively. The application of this method in the lakes region and monitoring these lakes, which are of great importance for Türkiye, provide valuable information in determining the lakes’ organizational strategies. © 2023, The Author(s), under exclusive licence to Springer Nature Switzerland AG.
dc.identifier.DOI-ID10.1007/s10661-023-11327-1
dc.identifier.issn01676369
dc.identifier.urihttp://akademikarsiv.cbu.edu.tr:4000/handle/123456789/12019
dc.language.isoEnglish
dc.publisherSpringer Science and Business Media Deutschland GmbH
dc.subjectEnvironmental Monitoring
dc.subjectLakes
dc.subjectSearch Engine
dc.subjectTemperature
dc.subjectWater
dc.subjectTurkey
dc.subjectEngines
dc.subjectImage analysis
dc.subjectSatellites
dc.subjectStatistical tests
dc.subjectrain
dc.subjectwater
dc.subjectwater
dc.subjectGoogle earth engine
dc.subjectGoogle earths
dc.subjectLake region
dc.subjectMann-Kendall
dc.subjectNDWI
dc.subjectSatellite images
dc.subjectSen’s slope
dc.subjectSequential mann–kendall
dc.subjectSurface area
dc.subjectclimate variation
dc.subjectInternet
dc.subjectNOAA satellite
dc.subjectsatellite imagery
dc.subjectsea surface temperature
dc.subjectspatiotemporal analysis
dc.subjectstatistical analysis
dc.subjectArticle
dc.subjectclimate
dc.subjectcorrelation analysis
dc.subjectenvironmental monitoring
dc.subjectenvironmental temperature
dc.subjectevaporation
dc.subjectlake
dc.subjectmathematical analysis
dc.subjectmeasurement accuracy
dc.subjectsatellite imagery
dc.subjectsearch engine
dc.subjectspatiotemporal analysis
dc.subjectsurface area
dc.subjecttrend study
dc.subjectTurkey (republic)
dc.subjectwater temperature
dc.subjectprocedures
dc.subjectsearch engine
dc.subjecttemperature
dc.subjectLakes
dc.titleSpatiotemporal statistical analysis of water area changes with climatic variables using Google Earth Engine for Lakes Region in Türkiye
dc.typeArticle

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