由于不均匀大气湍流引起的近喷口火山灰云层的发展和与风切变的关系
The development of near-vent volcanic ash cloud layers due to inhomogeneous atmospheric turbulence and relationship to wind shear
摘要：
火山灰云通常会随着距离喷口的距离而变得多层和稀薄。我们探索这种分层结构的发展机制之一。我们回顾数据的特点，在自由大气的湍流分层，以及观测的层状云近喷口和远端的例子。然后，我们探索和对比火山灰传输和扩散模型的输出，明确使用观测到的大气湍流的分层结构的模型。结果表明，湍流和静止的大气层的交替提供了一种机制，多层灰云的发展，通过调制的方式，其中发生的沉降。
英文摘要：
Volcanic ash clouds often become multilayered and thin with distance from the vent. We explore one mechanism for development of this layered structure. We review data on the characteristics of turbulence layering in the free atmosphere, as well as examples of observations of layered clouds both near-vent and distally. We then explore and contrast the output of volcanic ash transport and dispersal models with models that explicitly use the observed layered structure of atmospheric turbulence. The results suggest that the alternation of turbulent and quiescent atmospheric layers provides one mechanism for development of multilayered ash clouds by modulating the manner in which settling occurs.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
