Using data insertion with the NAME model to simulate the 8 May 2010 Eyjafjallajökull volcanic ash cloud

Using data insertion with the NAME model to simulate the 8 May 2010 Eyjafjallajökull volcanic ash cloud
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使用 NAME 模型的数据插入来模拟 2010 年 5 月 8 日的埃亚菲亚德拉冰盖火山灰云

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发表时间:
2016
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通讯作者:
A. Prata
A. Prata
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作者:
K. L. Wilkins;I. M. Watson;N. Kristiansen;H. Webster;D. J. Thomson;H. Dacre;A. Prata

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一个数据插入方法,其中的分散模型初始化来自一系列卫星观测的灰属性,是用来模拟2010年5月8日Eyjafjallajökull火山灰云,从冰岛延伸到北方西班牙。我们还简要讨论了这种方法的应用,2010年4月阶段的埃亚菲亚德拉火山喷发和2011年5月格里姆火山喷发。这种方法的优点是,由于不使用一些常见的喷发源参数,因此只需要很少的有关喷发本身的知识。因此,该方法可能是有用的远程火山喷发物质的良好的卫星观测,但很少有人知道的实际喷发的属性。然而,它在观测的质量和可用性方面确实有一些局限性。我们证明,使用某些配置,数据插入方法是能够捕捉到的结构,一个薄的细丝的灰延伸超过北方西班牙,是不完全捕获的其他建模方法。它还根据定量的基于对象的质量度量,SAL结构,幅度,位置和空间覆盖度量,空间品质因数,对卫星观测进行了很好的验证。
A data insertion method, where a dispersion model is initialized from ash properties derived from a series of satellite observations, is used to model the 8 May 2010 Eyjafjallajökull volcanic ash cloud which extended from Iceland to northern Spain. We also briefly discuss the application of this method to the April 2010 phase of the Eyjafjallajökull eruption and the May 2011 Grímsvötn eruption. An advantage of this method is that very little knowledge about the eruption itself is required because some of the usual eruption source parameters are not used. The method may therefore be useful for remote volcanoes where good satellite observations of the erupted material are available, but little is known about the properties of the actual eruption. It does, however, have a number of limitations related to the quality and availability of the observations. We demonstrate that, using certain configurations, the data insertion method is able to capture the structure of a thin filament of ash extending over northern Spain that is not fully captured by other modeling methods. It also verifies well against the satellite observations according to the quantitative object‐based quality metric, SAL—structure, amplitude, location, and the spatial coverage metric, Figure of Merit in Space.
DOI: 10.1002/2014gl062454
发表时间: 2015-01
影响因子: 5.2
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发表时间: 2012
期刊: Atmospheres
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