unstable layer
[/ʌnˈsteɪbəl ˈleɪər/]
nounpl: unstable layers
camada instável
1. A layer of air in the atmosphere that is prone to vertical motion and convection, occurring when warm air is beneath cooler air, creating conditions favorable for thunderstorms and severe weather
The meteorologist identified an unstable layer in the lower troposphere that would likely trigger severe thunderstorms.
O meteorologista identificou uma camada instável na troposfera inferior que provavelmente desencadearia tempestades severas.
2. In materials science or geology, a stratum or level that lacks structural integrity and is susceptible to failure or displacement
The construction engineers had to reinforce the unstable layer of soil before proceeding with the foundation work.
Os engenheiros de construção tiveram que reforçar a camada instável do solo antes de prosseguir com o trabalho de fundação.
This is primarily technical terminology used in meteorology, weather forecasting, and earth sciences. It is commonly employed in both Brazilian and American weather services to explain severe weather development. In Brazil, meteorologists regularly use this term when discussing conditions that may produce heavy rainfall and thunderstorms during the rainy season.
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