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Fusion of aerial gamma-ray survey and remote sensing data for a deeper understanding of radionuclide fate after radiological incidents: examples from the Fukushima Dai-Ichi response

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Abstract

We consider fusion of heterogeneous data, consisting of multispectral imagery collected from the WorldView-2 satellite and aerial gamma-ray spectra collected during the NNSA Aerial Measuring System response to the Fukushima Dai-ichi Nuclear Power Plant crisis. These data are analyzed using the non-linear dimension reduction technique of diffusion maps. The data is then used for classification of regions in the scene. A strong spatial coherence is observed in the gamma-ray data that is closely coupled to the underlying terrain classification obtained from the multispectral data, indicating correlation between these a priori uncorrelated measurements.

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Acknowledgments

This work was supported in part by a research grant From the Defense Threat Reduction Agency, Basic Science for Combatting Weapons of Mass Destruction, HDTRA1-13-1-0015 “Harmonic Analysis Methods for Autonomous Radiological Search: A Data Driven Approach”. The authors gratefully acknowledge Chae Clark and Dan Weinberg from the University of Maryland for valuable insights into the computational techniques used in the data analysis.

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Authors and Affiliations

  1. Norbert Wiener Center for Harmonic Analysis and Applications, University of Maryland, College Park, MD, USA

    Wojciech Czaja, Benjamin Manning & James M. Murphy

  2. Remote Sensing Laboratory, Joint Base Andrews, MD, USA

    Lance McLean

Authors
  1. Wojciech Czaja
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  2. Benjamin Manning
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  3. Lance McLean
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  4. James M. Murphy
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Correspondence to Lance McLean.

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Czaja, W., Manning, B., McLean, L. et al. Fusion of aerial gamma-ray survey and remote sensing data for a deeper understanding of radionuclide fate after radiological incidents: examples from the Fukushima Dai-Ichi response. J Radioanal Nucl Chem 307, 2397–2401 (2016). https://doi.org/10.1007/s10967-015-4650-z

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  • DOI: https://doi.org/10.1007/s10967-015-4650-z

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