Simulated volcanic ash imagery: A method to compare NAME ash concentration forecasts with SEVIRI imagery for the Eyjafjallajökull eruption in 2010
Simulated volcanic ash imagery: A method to compare NAME ash concentration forecasts with SEVIRI imagery for the Eyjafjallajökull eruption in 2010
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模拟火山灰图像：一种将 2010 年埃亚菲亚德拉冰盖喷发的 NAME 火山灰浓度预测与 SEVIRI 图像进行比较的方法
DOI：
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发表时间：
2012
期刊：
影响因子：
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通讯作者：
H. Webster
中科院分区：
文献类型：
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作者：
S. Millington;R. Saunders;P. Francis;H. Webster
[1]在火山爆发时，火山灰咨询中心会发布火山灰扩散的预测声明，以便航空业管理空域，避免飞机遇到火山灰。观测结果，如卫星观测结果，与大气扩散模型的预测结果进行比较，以评估火山灰预测的质量。已经开发了一种方法，以便能够将火山灰卫星图像与利用大气扩散模型预测的火山灰浓度数据模拟的图像进行相似比较。灰浓度和数值天气预报数据被用作辐射传输模型的输入，以模拟辐射。模拟的卫星图像是从这些模拟的辐射创建的。在这里，旋转增强可见光和红外成像仪火山灰图像的基础上，红外亮度温度的埃亚菲亚德拉冰盖喷发在2010年进行了模拟。除了为火山灰咨询中心的预报员提供有用的工具外，模拟图像还可用于帮助了解火山灰如何影响卫星图像以及火山灰的物理特性。
[1] During volcanic eruptions that eject ash into the atmosphere Volcanic Ash Advisory Centers issue statements on the forecast dispersion of the ash so that the aviation industry can manage airspace to avoid aircraft encountering volcanic ash. Observations, such as those from satellites, are compared with the forecasts from an atmospheric dispersion model to assess the quality of the ash forecasts. A method has been developed to enable like-with-like comparison between satellite imagery of volcanic ash and simulated imagery using the forecast ash concentration data from an atmospheric dispersion model. The ash concentration and numerical weather prediction data are used as inputs to a radiative transfer model to simulate radiances. Simulated satellite images are created from these simulated radiances. Here, Spinning Enhanced Visible and Infrared Imager volcanic ash images based on infrared brightness temperatures for the Eyjafjallajokull eruption in 2010 are simulated. In addition to providing a useful tool for forecasters in a Volcanic Ash Advisory Center, the simulated images can be used to aid the understanding of how the ash affects the satellite imagery and also the physical properties of the ash.
2010 年埃亚菲亚德拉冰盖喷发远端火山云中火山灰浓度的业务预测
DOI：
10.1029/2011jd016790
发表时间：
2012
期刊：
Atmospheres
影响因子：
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作者：
Webster H
通讯作者：
Webster H