منابع مشابه
Stratospheric tracer modeling key aspects
This study describes key aspects of global chemistry-transport models and the impact on stratospheric tracer transport. We concentrate on global models that use assimilated winds from numerical weather predictions, but the results also apply to tracer transport in general circulation models. We examined grid resolution, numerical diffu-5 sion and dispersion of the winds fields, the meteorology ...
متن کاملKey aspects of stratospheric tracer modeling using assimilated winds
This study describes key aspects of global chemistry-transport models and their impact on stratospheric tracer transport. We concentrate on global models that use assimilated winds from numerical weather predictions, but the results also apply to tracer transport in general circulation models. We examined grid resolution, numerical diffusion, air parcel dispersion, the wind or mass flux update ...
متن کاملComments on some recent measurements of anomalously steep and 03 tracer spectra in the stratospheric surf zone
Recent aircraft measurements, primarily in the extratropics, of the horizontal variance of nitrous oxide (N90] and ozone (O• in the middle stratosnho, ro, indicate that horizontal spectra of the tracer variance scale nearly as k -2, where k is the spatial wavenumber along the aircraft flight track [$trahan and Mahlman, 1994; Bacmeister et al., 1996]. This spectral scaling has been regarded as i...
متن کاملStratospheric Aerosol Retrieval From OSIRIS Limb Scattered Sunlight Spectra
The recent development of satellite observations of limb scattered sunlight at optical wavelengths has afforded a new opportunity to measure the vertical structure of atmospheric composition from the upper troposphere to the mesosphere, on a global scale. The determination of profiles of atmospheric composition from observed limb radiance profiles requires two elements, a forward radiative tran...
متن کاملA Study of Tracer Transports by Planetary Scale Waves in the Mit Stratospheric General Circulation Model
The quasi-geostrophic global stratospheric model at MIT developed by is used to study the zonal and time-averaged transport of potential temperature and ozone by the planetary zonal wavenumbers 1-6. Several types of covariances between the winds, geopotential, and the tracers are calculated in order to evaluate the directions and strength of the fluxes and the winds causing the fluxes. The eddy...
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ژورنال
عنوان ژورنال: Journal of the Atmospheric Sciences
سال: 2004
ISSN: 0022-4928,1520-0469
DOI: 10.1175/1520-0469(2004)061<0161:sts>2.0.co;2