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The possibility to calculate linear-source receptor relationships for the transport of atmospheric trace substances with a Lagrangian particle dispersion model (LPDM) running in backward mode is shown and presented with many tests and examples. This mode requires only minor modifications of the forward LPDM. The derivation includes the action of sources and(More)
  • P J Seibert
  • 1994
In an earlier article (JAVMA, Jan 15, 1994), the author outlined some of the first steps necessary in establishing a hospital safety program that will comply with current Occupational Safety and Health Administration (OSHA) guidelines. One of the main concerns of the OSHA guidelines is that there be written plans for managing hazardous materials, performing(More)
An analytical inversion method for determining regional and global emissions of greenhouse gases: Sensitivity studies and application to halocarbons, Atmos. The MIT Faculty has made this article openly available. Please share how this access benefits you. Your story matters. Abstract. A new analytical inversion method has been developed to determine the(More)
The accident at the Fukushima Dai-ichi nuclear power plant (FD-NPP) on 11 March 2011 released large amounts of radioactivity into the atmosphere. We determine the total emission of the noble gas xenon-133 ((133)Xe) using global atmospheric concentration measurements. For estimating the emissions, we used three different methods: (i) using a purely(More)
The International Monitoring System (IMS) is part of the verification regime for the Comprehensive Nuclear-Test-Ban-Treaty Organization (CTBTO). At entry-into-force, half of the 80 radionuclide stations will be able to measure concentrations of several radioactive xenon isotopes produced in nuclear explosions, and then the full network may be populated with(More)
General comments This paper is motivated by the need to derive statements about possible or probable source locations for anomalous radionuclide measurements that may be observed in the global radionuclide measurement network which is under construction for the verification of the Comprehensive Nuclear-Test-Ban Treaty. It introduces the adjoint of a(More)