The Correlation Between Temperature And Pressure Data in Turkey

Abstract

The distribution of the pressure in the earth surface is not equal in every part of the earth due to gravity, height, thermal and dynamic reasons. As well as the effect of the gravity force, in theory, the decrease in sea surface pressure and the amount of decrease in pressure while the height increases should have been the same in everywhere. However the temperature differences and the weather events in the troposphere cause that the weather gets warmer and becomes sparse in some places and gets cooler and becomes dense thus leads to change in pressure depending on the temperature. Based on aforementioned facts, in accordance with the hypothesis that the increase in temperature leads to decrease in pressure and the decrease in temperature leads to increase in pressure, in this study, the relation between the temperature and pressure in the climatic conditions of Turkey are tested by using statistical methods. For that purpose, homogeneity test has been applied to the average temperature and pressure data in months for 31 years, which covers the years 1975-2005, gathered from the meteorology stations of 81 cities in Turkey. Secondly, in order to determine the relation between two variables better as well as the average values, the amplitude values of temperature and pressure have been calculated. As a third step, since the units of the variables are different from each other, in order to establish a healthier relation, both the temperature and the pressure values have been released from units by standardizing. Lastly, in order to determine this relationship, the correlation coefficient method that inspects and scales the together change of two variables and after that cluster analysis method which classifies this relation as variance based by calculating the euclid distance between the data. According to the results obtained from these data, the negative relation between the temperature and pressure has been verified strongly and the emerging results have been grouped seasonally and annually with tables, graphics, and figures.