Chinese scientists extract longest ice core in low, middle latitudes

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Chinese scientists have extracted a 324-meter-long ice core from the Purog Kangri ice sheet, breaking the record of ice core extraction in low and middle latitudes.

Chinese scientists conduct a survey on the Qinghai-Xizang Plateau, southwest China. /CMG

Purog Kangri, located on the Qinghai-Xizang Plateau of southwest China, is the third largest ice sheet in the world, following the Antarctic and the Greenland ice sheets.

With a maximum measured thickness of nearly 400 meters, the ice sheet is deemed an important area in the study of climate and environmental changes of the Qinghai-Xizang Plateau as well as the whole world, since the plateau is known as the "roof of the world" and Asia's "water tower."

Ice cores offer a way to study Earth's past environmental conditions as they contain specific chemical and physical components that accumulate each year as the snow turns into a layer of ice.

(Cover: Chinese scientists conduct a survey on the Qinghai-Xizang Plateau, southwest China. /CMG)