A new study published by scientists revealed that the increase in global sea level has accelerated significantly in recent years. The study, published in the journal Science Advances, examined sea level changes in the period 1960-2023 and the factors that led to this change in detail. According to research findings, a significant increase in the rate of sea level rise was observed, especially after the 2000s. The Biggest Factor is Ocean Warming and Thermal Expansion.
In the study, it was determined that the biggest reason for the increase in sea level is the warming of the oceans. The “thermal expansion” process, defined as the expansion of water’s volume as it heats up, accounted for approximately 43 percent of the total rise. In addition, it was determined that different sources contribute to global sea level. Glacier Melting and Terrestrial Water Loss Were Effective According to the research, other important factors contributing to the increase in sea level were listed as follows: Melting of mountain glaciers: Melting caused by the Greenland Ice Sheet: Melting caused by the Antarctic Ice Sheet: Decrease in terrestrial water storage capacity: 3% These data revealed that glaciers and large ice masses play an important role in global sea level change.
The Rate of Rise Increased Significantly After 2005. In the research, it was calculated that the global sea level increased by approximately 2 millimeters per year on average in the period 1960-2023. However, it was determined that this rate reached approximately 4 millimeters per year in the 2005-2023 period. This showed that the rate of sea level rise has approximately doubled in recent times. Ocean Warming is the Main Reason for the Acceleration Scientists stated that a significant part of the increase in the rate of rise is due to thermal expansion caused by ocean warming.
In addition, the decrease in terrestrial water storage capacity was among the factors contributing to the acceleration. The research revealed that glaciers played a more dominant role in the past, but the effect of ocean warming has gradually increased since the 1980s. Experts Point Out the Importance of Long-Term Monitoring In the study, it was emphasized that regular and detailed monitoring of sea level changes is of critical importance, especially for coastal regions.
It was stated that the data obtained could form an important scientific basis for future flood risks and coastal protection planning.
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