A Comparison of Long-Term Meteorological Data of Khulna and Dhaka to Comprehend Climate Change Impacts

Abstract

The terms "climate change" and "climate change impacts" have become ubiquitous in the 21st century. Even though they are not the primary contributors to the problem, low-lying and developing nations like Bangladesh are bearing the brunt of the consequences of climate change. Nevertheless, the purpose of this research is to evaluate the two distinctly distinct regions with regard to the effects that climate change has had on a variety of meteorological parameters (temperature, rainfall rate, relative humidity, wind speed, and direction). The research was carried out using previously obtained data over a long period of time from the Bangladesh Meteorological Department (BMD) as well as reports that were previously published. Using the collected data, a regression analysis is performed, and it is shown that both Dhaka and Khulna stations are experiencing temperature increases that are greater than 1.5 degrees Celsius. However, in accordance with the international agreement known as the "Paris Agreement," the target is to restrict the rise in global temperature to no more than 1.5 degrees Celsius. In contrast to the temperature, the rate of rainfall is increasing in the Khulna station, whereas it is decreasing in the Dhaka station. On the other hand, relative humidity and wind speed are both going in the downward trendline at both stations. On the other hand, it has been determined that Khulna station is more susceptible to the effects of climate change than Dhaka station.