Ozan Mert Göktürk

Ondokuz Mayıs University · Department of Meteorological Engineering

1. GİRİŞ Hükümetlerarası İklim değişikliği Paneli'nin dördüncü değerlendirme raporunda (IPCC 2007) değişik emisyon senaryoları için çalıştırılmış Küresel Sirkülasyon Model (KSM) çıktılarına göre ülkemizin de içinde bulunduğu Akdeniz Havzası'nda yirmi birinci yüzyıl sonlarına doğru sıcaklıkların artışıyla beraber yağışlarda önemli azalmaların meydan...

The Etesian wind regime dominating the climate of the Aegean Sea in summer often influences a larger area extending from the Balkans and the Black Sea to the Levantine Basin of the Eastern Mediterranean. The steady dry northerly winds descending from the Balkans in summer often incite forest fires in the Aegean Sea region, while the moist air picke...

Turkey lies in a region that is highly vulnerable to climate change, and the indicators show that climate is changing in Turkey. The station observations show that temperatures are increasing throughout the country. Summer temperatures increase more than those of the other seasons. There are significant shifts in the timing of the snowfed river dis...

In this study, circulation types, their long-term mean occurrence frequencies and relationships with precipitation are investigated for the region Marmara, which is the most populated, agriculturally developed and industrialized area in Turkey. Automated Lamb Weather Types classification method is applied on NCEP/NCAR daily mean sea level pressure...

Mineral dust from Saharan Desert is an important component of the climate of the Mediterranean basin. The emissions and transport of dust from Sahara to Europe depends on meteorological conditions, therefore climate change can affect the sources of mineral dust and its transport pathways. On the other hand dust has also an effect on climate by modi...

In this study, the analysis of synoptic weather types and its influence on PM 10 concentration are investigated. Lamb Weather Types (LWTs) classification method is utilized to NCEP/NCAR daily sea level pressure data. An increase in average PM 10 concentrations are observed when anticyclonic patterns dominate the region. Southerly (S and SW) pattern...

The hydrological balance of the Black Sea is strongly governed by riverine input and exchange with the Mediterranean Sea through the shallow Bosporus Strait1 (34 m below present sea level (mbsl)), both of which have distinctly different oxygen isotope (delta18O) signatures. Therefore, the delta18O of Black Sea water is directly related to the prese...

We use stable isotopes of carbon and oxygen to investigate the potential palaeoclimate records from the caves near Johannesburg in South Africa. The sediments in these caves contain early human (hominin) fossils, as well as speleothem material, providing an ideal opportunity to investigate the palaeo-enviroments of our earliest ancestors. These sit...

1] A 50 kyr-long exceptionally well-dated and highly resolved stalagmite oxygen (d 18 O) and carbon (d 13 C) isotope record from Sofular Cave in northwestern Turkey helps to further improve the dating of Greenland Interstadials (GI) 1, and 3 – 12. Timing of most GI in the Sofular record is consistent within ±10 to 300 years with the ''iconic'' Hulu...

A 300 ky-long high resolution stalagmite record from Northern Turkey: Millennial-scale events and Black Sea flooding

Precise Timing of Dansgaard-Oeschger events 1-13 in stalagmites from Sofular Cave, Northern Turkey

The modern climate in Turkey and the eastern Mediterranean is strongly affected by two major climate systems; the North Atlantic/Siberian pressure system in winter and the Indian monsoon in summer. Turkey is ideally situated to study how and to what extent both systems were dynamically linked during the Holocene and late Pleistocene periods. Our cu...

Outlier trimming and homogeneity checking/correction were performed on the monthly precipitation time series of various lengths from 267 stations in Turkey. Outlier values are usually found during dry summer months, and are concentrated mostly over the southern parts of the country, where the dry period is most pronounced, implying natural extremes...

An article describing methods of measuring the sulfur concentrations in speleothems as a means to examine volcanic events.