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Transport ExperimentsMM II defined a series of experiments to better understand and characterize model transport and to assess the realism of this transport by comparison to observations. Measurements from aircraft, balloon, and satellite, not yet available at the time of MM I [Prather and Remsberg, 1993], provide new and stringent constraints on model transport, and address the limits of our transport modeling abilities. Simulations of the idealized tracers the age spectrum, and propagating boundary conditions, and conserved HSCT-like emissions probe the relative roles of different model transport mechanisms, while simulations of SF6 and C02 make the connection to observations. Some of the tracers are related, and transport diagnostics such as the mean age can be derived from more than one of the experiments for comparison to observations. The goals of the transport experiments are: (1) To isolate the effects of transport in models from other processes; (2) To assess model transport for realistic tracers (such as SF6 and C02) for comparison to observations; (3) To use certain idealized tracers to isolate model mechanisms and relationships to atmospheric chemical perturbations; (4) To identify strengths and weaknesses of the treatment of transport processes in the models; (5) To relate evaluated shortcomings to aspects of model formulation. The following section are included:Executive Summary, Introduction, Age Spectrum, Observation, Tropical Transport in Models, Global Mean Age in Models, Source-Transport Covariance, HSCT "ANOY" Tracer Distributions, and Summary and Conclusions.
Document ID
20000024741
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Hall, Timothy M.
(NASA Goddard Inst. for Space Studies New York, NY United States)
Wuebbles, Donald J.
(Illinois Univ. Urbana, IL United States)
Boering, Kristie A.
(California Univ. Berkeley, CA United States)
Eckman, Richard S.
(NASA Langley Research Center Hampton, VA United States)
Lerner, Jean
(NASA Goddard Inst. for Space Studies New York, NY United States)
Plumb, R. Alan
(Massachusetts Inst. of Tech. Cambridge, MA United States)
Rind, David H.
(NASA Goddard Inst. for Space Studies New York, NY United States)
Rinsland, Curtis P.
(NASA Langley Research Center Hampton, VA United States)
Waugh, Darryn W.
(Johns Hopkins Univ. Baltimore, MD United States)
Wei, Chu-Feng
(Illinois Univ. at Urbana-Champaign Urbana, IL United States)
Date Acquired
August 19, 2013
Publication Date
September 1, 1999
Publication Information
Publication: Models and Measurements Intercomparison 2
Subject Category
Geophysics
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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