Interactive comment on “Estimation of the vertical profile of sulfur dioxide injection into theatmosphere by a volcanic eruption using satellite column measurements and inverse transport modeling” by S. Eckhardt et al
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Inverse modeling of injection height
Estimation of the vertical profile of sulfur dioxide injection into the atmosphere by a volcanic eruption using satellite column measurements and inverse transport modeling S. Eckhardt, A. J. Prata, P. Seibert, K. Stebel, and A. Stohl Norwegian Institute for Air Research, Kjeller, Norway Inst. of Meteorology, Univ. of Natural Resources and Applied Life Sciences, Vienna, Austria Received: 21 Jan...
متن کاملEstimation of the vertical profile of sulfur dioxide injection into the atmosphere by a volcanic eruption using satellite column measurements and inverse transport modeling
An analytical inversion method has been developed to estimate the vertical profile of SO2 emissions from volcanic eruptions. The method uses satellite-observed total SO2 columns and an atmospheric transport model (FLEXPART) to exploit the fact that winds change with altitude – thus, the position and shape of the volcanic plume bear information on its emission altitude. The method finds the vert...
متن کاملResponse to comments on "Large volcanic aerosol load in the stratosphere linked to Asian monsoon transport".
Fromm et al. and Vernier et al. suggest that their analyses of satellite measurements indicate that the main part of the Nabro volcanic plume from the eruption on 13 June 2011 was directly injected into the stratosphere. We address these analyses and, in addition, show that both wind trajectories and height-resolved profiles of sulfur dioxide indicate that although the eruption column may have ...
متن کاملInverse transport modeling of volcanic sulfur dioxide emissions using large-scale simulations
An inverse transport modeling approach based on the concepts of sequential importance resampling and parallel computing is presented to reconstruct altitude-resolved time series of volcanic emissions, which often cannot be obtained directly with current measurement techniques. A new inverse modeling and simulation system, which implements the inversion approach with the Lagrangian transport mod...
متن کاملComment on "Large volcanic aerosol load in the stratosphere linked to Asian monsoon transport".
Bourassa et al. (Reports, 6 July 2012, p. 78) report on the 13 June 2011 eruption of the Nabro volcano and satellite observations of stratospheric aerosol that they attribute to troposphere to stratosphere ascent via the Asian monsoon. They claim (citing another source) that the 13 June top injection height was well below the tropopause. We will show that the 13 June Nabro eruption plume was cl...
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