Himalayan Katabatic Winds
Scientists have uncovered a surprising climate phenomenon in the Himalayas that may temporarily slow down the impacts of the global climate crisis. This revelation stems from the observation of ‘katabatic’ winds, triggered when high temperatures affect high-altitude ice masses. The study, published in the journal Nature Geoscience, utilized data from the Pyramid International Laboratory/Observatory climate station on Mount Everest, the world’s tallest summit.
Temperature Gap
A temperature gap forms between the air above the mountains and the cooler air in direct contact with ice masses. This gap results in increased turbulent heat exchange at the glacier’s surface, leading to a stronger cooling of the surface air mass. As warm air cools and becomes denser, it sinks, triggering katabatic winds down the slope in neighboring areas.
Potential Impact on Global Warming
While this phenomenon may offer a temporary reprieve in some areas, its long-term sustainability remains uncertain. However, the significance of studying its impact is underscored by the fact that the Himalayan mountain range feeds into 12 rivers, providing fresh water to nearly 2 billion people in 16 countries.
Concerns and Limitations
Despite the potential slowing down of the effects of global warming in specific regions, scientists emphasize that this phenomenon does not halt the overall melting of glaciers due to climate change. A June report highlighted that Himalayan glaciers melted 65% faster in the 2010s compared to the previous decade. The main impact of rising temperatures on glaciers is an increase in ice losses due to increased melting.
Related Posts
Month: Current Affairs - December, 2023
Category: Environment Current Affairs