ash plume top height estimation using aatsr

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ID: 169929
2014
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Abstract
An algorithm is presented for the estimation of volcanic ash plume top height using the stereo view of the Advanced Along Track Scanning Radiometer (AATSR) aboard Envisat. The algorithm is based on matching top of the atmosphere (TOA) reflectances and brightness temperatures of the nadir and 55° forward views, and using the resulting parallax to obtain the height estimate. Various retrieval parameters are discussed in detail, several quality parameters are introduced, and post-processing methods for screening out unreliable data have been developed. The method is compared to other satellite observations and in situ data. The proposed algorithm is designed to be fully automatic and can be implemented in operational retrieval algorithms. Combined with automated ash detection using the brightness temperature difference between the 11 and 12 μm channels, the algorithm allows efficient simultaneous retrieval of the horizontal and vertical dispersion of volcanic ash. A case study on the eruption of the Icelandic volcano Eyjafjallajökull in 2010 is presented.
Reference Key
virtanen2014atmosphericash Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;T. H. Virtanen;P. Kolmonen;E. Rodríguez;L. Sogacheva;A.-M. Sundström;G. de Leeuw
Journal bioorganic & medicinal chemistry
Year 2014
DOI
10.5194/amt-7-2437-2014
URL
http://www.atmos-meas-tech.net/7/2437/2014/amt-7-2437-2014.pdf
Keywords
foundations environmental engineeringearthwork

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