Analysis of total monthly precipitation of Susurluk Basin in Turkey using innovative polygon trend analysis method

Gokmen Ceribasi,Ahmet Iyad Ceyhunlu

doi:10.2166/wcc.2020.253

Gokmen Ceribasi, Ahmet Iyad Ceyhunlu

Open Access

https://doi.org/10.2166/wcc.2020.253

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Abstract

Abstract The effects of climate change caused by global warming can be seen in changes of climate variables such as precipitation, humidity, and temperatures. These effects of global climate change can be interpreted as a result of the examination of meteorological parameters. One of the most effective methods to investigate these effects is trend analysis. The Innovative Polygon Trend Analysis (IPTA) method is a trend analysis method that has emerged in recent years. The distinctive features of this method compared with other trend methods are that it depends on time series and can compare data series among themselves. Therefore, in this study, the IPTA method was applied to total monthly precipitation data of Susurluk Basin, one of Turkey's important basins. Data from ten precipitation observation stations in Susurluk Basin were used. Data were provided by the General Directorate of State Meteorology Affairs. The length of this data series was 12 years (2006–2017). As a result of the study, since there is no regular polygon in IPTA graphics of each station, it is seen that precipitation data varies by years. While this change is seen increasingly at some stations, it is seen decreasingly at other stations.

Highlights

While climate is defined as the average of long-term weather events of a region, global climate change is defined as changes occurring in climate elements
No single polygon was created at any station. This shows that precipitation data have instability
Horizontal directional arrows in months show that there is the same amount of precipitation on average in both series

Summary

Introduction

While climate is defined as the average of long-term weather events of a region, global climate change is defined as changes occurring in climate elements. The effects of climate change caused by global warming are seen on parameters such as precipitation, humidity, air movements, sea surface temperatures, and air temperatures. These effects of global climate change can be interpreted as a result of the. Climate change resulting from global warming shows its effect in almost every region of the world. The impact of this climate change occurs as water scarcity in some regions, and it occurs as floods in some regions. Studies on the issue of climate change have been increasing recently.

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