In the study, it is aimed to analyze all the evaluations and comments shared by Turkish tourists on the most visited destinations in Greece, Georgia and Bulgaria until October 5, 2020, through the TripAdvisor website. In this context, first of all, the comments/shares of Turkish tourists were classified within the framework of three basic lists (Places to Visit, Accommodation and Food Places), which were created according to the TripAdvisor Destination Discovery Algorithm. In addition to the lists determined by TripAdvisor, all accommodation businesses, restaurants, bars and cafes, all historical places to visit, outdoor and indoor activities, touristic and symbolic places, Spa and health centers and other activities in Greece, Georgia and Bulgaria destinations have been analyzed to determine how they were evaluated. During the research data collection process, KNIME Analytics Platform 3.7.1 and MAXQDA 2018 programs were used and data mining was carried out to reach a total of 2522 comments, evaluation points and forum discussion posts about Greece, Georgia and Bulgaria destinations. In addition, the demographic information and travel experiences of the commenting/sharing users were analyzed by including them in the data. Considering the evaluation scores of all touristic activities about the destinations as a result of the research 76.2 % of the Turkish tourists visiting the Greek destination rated the destination excellent and 14.2% very good. 76.2% of the Turkish tourists visiting the Georgia destination rated the destination excellent and 14.2% very good. On the other hand; 74.4% of the Turkish tourists who visited the Bulgarian destination rated the destination as excellent and 19% as very good

Precipitation variability is an important indicator for freshwater renewability and hydrometeorological hazards. The number of rainy days, one of the parameters considered within the scope of precipitation variability, is evaluated in determining the seasonality and intensity of the precipitation. In this study, which aims to analyze the trends observed in rainy days in Turkey’s river basins since the 1960s, the annual and seasonal rainy day series of 100 different stations were analyzed with the Mann-Kendall test. Statistically significant decreasing trends were determined in the number of annual, winter and spring rainy days series. These trends are prominent mainly in the basins located in the northwestern and southern parts of the country. At the same time, decreasing trends in closed basins and the Euphrates basin, which is Turkey’s largest basin, are also remarkable. The decrease in the number of rainy days may cause hydroclimatological results such as the shrinking of the rainy period and/or propagation of the dry sequences; the decrease in the total precipitation or the increase in the precipitation intensity and thus the frequency of the heavy rains. All these processes emphasize the importance of water and water-related natural disaster management in Turkey’s river basins.

According to United Nations World Tourism Organisation (UNWTO), tourism offers all over the world cultural, environmental and social (peace and security) benefits, as well as provides employment (creating jobs), economic growth and development. Tourism accounted for 1/10 of jobs created in the world, 10% of the World’s GDP (1.6 trillion by 2030 1.8 US Dollars), 7% of all exports, and 30% of all service exports in the world in 2017. Tourism grows the fastest with oil, food and automotive industries all over the world by increasing the number of destinations and income sources of most developing countries and supporting several sectors from construction to agriculture or telecommunications. In such a vitally important sector, competition among destinations is inevitable and its economic contribution is related to the service quality and the high revenues. In such a high competition, every type of potential or resource is given to the benefit of the tourism sector and used in promotional materials even, marketing and branding efforts e.g. quality of the snow cover or sun and beaches. Climate characteristics are vitally important for tourism to ensure both loyalty and branding and incomes. For nearly 50 years several climate indices on tourism have been developed to show the advantages of climatic characteristics at a given tourist destination. This study aims to analyse the climate of Erzurum city, a winter destination, through Climate and Tourism Information Schemes (CTIS) based mainly on bioclimatic comfort conditions as well as effective climatic parameters on tourism differently from other indices. Results show that even though bioclimatic comfort values address extreme cold stress in the winter tourism season, the area is suitable for winter tourism when considering other climatic parameters. It can be stated as a conclusion that a unique tourism climate index to Turkey should be developed by taking into account the prevalent tourism types mainly winter and 3 – S tourism.

Çayönü Tepesi, one of the outstanding Neolithic settlements of Anatolia, and Hilar Rocks with their well-preserved karst shapes are located approximately 6 km southwest of Ergani district in Diyarbakýr province. Çayönü Tepesi is one of the rare settlements identified in Anatolia, Levant, Mesopotamia and Zagros regions with an uninterrupted stratigraphy from the beginning of the Pottery Neolithic Period to the first half of the Pottery Neolithic Period. Çayönü Tepesi and the rock tombs on the Hilar Rocks next to it are substantial tourism destinations with a cultural heritage identity. However, the Hilar rocks are also important in terms of their geological heritage value, both with their natural site identity and their karst¬ic shapes. This study evaluates the karstic shapes of the Hilar Rocks in terms of geo-tourism and offers suggestions to improve the tourism potential. It also aims to evaluate and present the archaeo-tourism and geo-tourism potential in the context of the natural relationship between the Çayönü Tepesi Neolithic settlement and the Hilar Rocks, thus emphasizing the importance of the cultural and geological heritage of the region.

Globalization and the development of information systems have brought many changes in economic and social life. Changes in business life have gradually affected the sectors. The basic principle of competitiveness, the importance of which is increasing day by day in the global economy, is that businesses need to get help from information systems in order to make a difference and provide superiority. One of the first sectors to be affected by these changes in the aviation sector. Communication theorist McLuhan defines the development of information technologies and communication networks as “the world is a global village”. The village here is a concept used to describe the world evolving into the electronic culture. This situation has also increased the competition between businesses. The competitive environment and electronic culture have also caused the manual systems used in the travel industry to become electronic by adapting them to the environment. One of the auxiliary information systems used in this sense is Global Distribution Systems. Global Distribution Systems entered our lives in the 1980s. These systems have an important place in travel businesses. For businesses, being involved in global distribution sys¬tems means maintaining the existence of businesses and increasing their profitability. The aim of this study is to determine the status of global distribution systems used in airline companies and to convey the operation of these systems. The research consists of a literature review. In this context, the descriptive analysis method was preferred in the research. In the descriptive analysis, the previously obtained findings are summarized under the headings as they were obtained. The study aims to fill an important gap in order to understand the working principles of GDS systems.