AI Article Synopsis
- Lake-effect snowfall (LES) occurs when cold air moves over open lakes, and its frequency is expected to increase on the Tibetan Plateau (TP) due to climate warming.
- Research shows that LES is linked to factors like lake area, wind speed, and temperature changes as cold air shifts southward, particularly affecting larger lakes.
- Model simulations indicate that in 2013, major lakes in southern TP caused over 50% of snowfall in nearby regions, and future projections suggest worsened conditions under climate scenarios, necessitating proactive policies.
Article Abstract
Lake-effect snowfall (LES) occurs when cold air moves across open lakes. LES is expected to occur more frequently over the TP, due to the intensified lake expansion caused by intensified global warming. Thus, there is an urgent need to comprehensively assess the LES over the TP. Here, we revealed that the LES is triggered by westerly southward shift leading to the drop in air temperature and is positively correlated with lake area, wind speed and longitude across 12 large lakes (>300 km) based on satellite observations and reanalysis data. Using a sensitivity model simulation, we determined that large lakes in the southern TP contributed to more than 50% of the snowfall in the downwind area in 2013. Projections indicate that the westerly-triggered LES will increase under the future RCP4.5 climate warming scenario, highlighting the importance of developing adaptive policies to address the growing risks associated with future LES.
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| http://dx.doi.org/10.1016/j.scib.2024.01.042 | DOI Listing |
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Article Synopsis
- Lake-effect snowfall (LES) occurs when cold air moves over open lakes, and its frequency is expected to increase on the Tibetan Plateau (TP) due to climate warming.
- Research shows that LES is linked to factors like lake area, wind speed, and temperature changes as cold air shifts southward, particularly affecting larger lakes.
- Model simulations indicate that in 2013, major lakes in southern TP caused over 50% of snowfall in nearby regions, and future projections suggest worsened conditions under climate scenarios, necessitating proactive policies.
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