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    Öğe
    Heatwave dynamics in Türkiye: a long-term spatiotemporal analysis of frequency, duration, and intensity (1970-2022)
    (Springer, 2025) Tatli, Hasan; Serkendiz, Hidir
    This study examines the spatial and temporal characteristics of heatwaves (HWs) in T & uuml;rkiye, a region predominantly characterized by an arid-semiarid macro-Mediterranean climate, which is susceptible to frequent droughts. Using daily maximum temperature data from 277 meteorological stations across T & uuml;rkiye (1970-2022), the research analyzes HW frequency, duration, and intensity, adopting a definition aligned with the World Meteorological Organization (WMO). Temporal trends were assessed using statistical trend analysis, while spatial patterns were evaluated through spatial autocorrelation methods. The findings indicate a statistically significant increase in the frequency of heatwaves over time, with the annual average number of events rising from approximately 5 in the 1970s to over 10 since the 2000s. This trend is particularly evident in the Marmara, Aegean, and Black Sea regions. Trend analysis results reveal that heatwave duration has exhibited a statistically significant increase throughout the study period in 96.4% of the analyzed stations. The most pronounced increases have been observed in the Marmara, Black Sea, and Eastern Mediterranean regions. These results underscore the growing impact of climate change on T & uuml;rkiye and highlight the need for targeted adaptation and mitigation strategies. Insights from this study can inform the development of early warning systems, resource allocation, and public health preparedness, ultimately enhancing community and ecosystem resilience to climate-related challenges.
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    Öğe
    Mapping Heatwave Vulnerability: Multidimensional Assessment of Heatwave Vulnerability from an Environmental and Socioeconomic Perspective
    (Asce-Amer Soc Civil Engineers, 2026) Serkendiz, Hidir
    This research implements a multidimensional conceptual framework to assess heatwave vulnerability across T & uuml;rkiye, based on the Intergovernmental Panel on Climate Change (IPCC) three-component definition of vulnerability: exposure, sensitivity, and adaptive capacity. The framework operationalizes these components using an indicator approach. Heatwave exposure is measured by the frequency of heatwave days, while sensitivity and adaptive capacity are represented by 18 physical and human geography variables. Indicators and variables were weighted using the analytic hierarchy process, resulting in four subindices and a composite heatwave vulnerability index (HVI). The index values were classified into five categories: very low, low, moderate, high, and very high, and spatial models were created. Findings show that high heatwave exposure is concentrated in northern and northwestern T & uuml;rkiye, with a significant increase in the eastern and southeastern Marmara region. The study observes a general gradient of decreasing heatwave exposure from northwest to southeast. The HVI results reflect these spatial patterns, indicating high to very high vulnerability in western, northwestern, and northern regions, and very low to low vulnerability in eastern and southeastern regions. These insights can guide regional planning, policy-making, and future climate vulnerability research in T & uuml;rkiye.