South China Sea Levels Have Rised 150 mm Since 1900: A Study

The South China Sea is not only important for China, but also for other countries in the region


The sea level of the South China Sea has risen by 150 mm since 1900, according to researchers from the South China Sea Oceanological Institute.

The study, conducted by researchers under the Chinese Academy of Sciences (CAS) and other institutions in the country, focuses on Porites corals, a widespread coral in the South China Sea with high growth rates, clear annual growth layers and sensitive response to change seawater environment, the Xinhua News Agency reported.

The researchers analyzed the correlation mechanisms between Porites coral oxygen stable isotopes and sea level, sea surface salinity, sea surface temperature and rainfall in the South China Sea, and reconstructed sea level records at annual resolution.

Studies show that sea levels dropped by 0.73 mm a year from 1850 to 1900, and then increased by 1.31 mm a year from 1900 to 2015. Sea level rise in the South China Sea has accelerated, rising by 3.75 mm a year since 1993, Xinhua reported.

The study found that sea level changes in the South China Sea may have been the result of a combination of solar and greenhouse gas activities from 1850 to 1950, and greenhouse gases may have been the dominant factor behind the rapid rise in sea levels since 1950..

The study was published in the journals Palaeogeography, Palaeoclimatology, Palaeoecology, the news agency added.

SCS is not only important for China, but also for other countries in the region and the world because of about USD 4 trillion or a third of global maritime trade through it.

(This story has not been edited by NDTV staff and is automatically generated from a syndicated feed.)


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