Scientists have just released the most detailed map of Antarctica’s hidden landscape beneath its thick ice. This high-resolution map offers new insights into how the continent may react to climate change.
Glaciologist Hamish Pritchard from the British Antarctic Survey (BAS), who led the research, compared the ice situation to pouring syrup over a dessert. The terrain influences how the ice flows and where it might speed up in a warming world. “Ridges can hold back moving ice, while hollows allow it to flow faster,” he explained.
The new map, known as Bedmap3, builds on previous studies by incorporating over 52 million additional data points. These were gathered from various sources, including planes, satellites, and even dog-drawn sleds. Over 60 years of research went into its creation, as detailed in a study published in the journal Scientific Data.
This map not only highlights ice thickness but reveals Antarctica’s towering mountains and deep valleys with unprecedented clarity. It shows that the ice is thicker than scientists previously suspected, especially in a surprising canyon in Wilkes Land, which has nearly 3 miles (4.8 km) of ice. This is thicker than the previously believed most substantial ice, located in the Astrolabe Basin.
The map is crucial for understanding the ice sheet’s dynamics. According to Peter Fretwell, a mapping specialist at BAS, "The ice’s thickness is not the main worry; rather, it’s that much of it sits below sea level, making it vulnerable to warmer seawater, which increases the risk of melting.”
In recent years, a large-scale study by the World Meteorological Organization reported that global temperatures have risen an average of 1.1 degrees Celsius since the late 19th century, primarily due to human activities. This heating trend accelerates ice melt, and maps like Bedmap3 are essential for predicting future changes in Antarctica.
The new findings have sparked discussions on social media, with many expressing surprise at the unexpected thickness of Antarctica’s ice. Users have shared articles and insights, showing a keen interest in how these changes could impact global sea levels.
As we learn more about Antarctica’s hidden features, it becomes clear that this continent is more vulnerable than previously understood — a wake-up call for addressing climate challenges ahead.