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4DVAR retrieval of prognostic land surface model variables.
(2004)
The major findings of the first type of retrieval are: Initial soil moisture contents as well as deep soil temperature can all be successfully retrieved, for realistic initial guess errors; the relative difficulty in ...
The effects of wind shear on convective boundary layer entrainment.
(2004)
24 large eddy simulations (LES) were conducted for CBLs growing under varying conditions of surface buoyancy flux, free atmospheric stratification, and wind shear. With the intent of elucidating the effects of surface layer ...
Alterations in land surface-atmosphere processes resulting from the 1988 Greater Yellowstone Area fires.
(2004)
Meteorological observations for the 10-year period 1984 to 1993 have been collected from 178 stations within the GYA, quality assured, and spatially and temporally interpolated to produce gridded data suitable for model ...
North Atlantic winter surface extratropical cyclone track variability on interannual-to-decadal time-scales.
(2004)
The variability of cyclone activity at interannual and decadal-to-multidecadal time-scales is examined. First, interannual cyclone variability is classified into three major modes based on a VARIMAX Rotated Principal ...
Intraseasonal variability of the North American monsoon over Arizona.
(2004)
Another aspect of intraseasonal variability is the daily persistence of regimes. DR is the most persistent regime, followed by CEMR, NDR, EMR, and CEMSR. Occasionally, sharp changes in storm coverage precede or follow a ...
Role of upper-level wind shear on the structure and maintenance of derecho-producing convective systems.
(2004)
To explore the role of upper-level shear in derecho environments, a set of two-dimensional simulations of density currents within a dry, neutrally stable environment are used to examine the ability of a cold pool to lift ...
Variational pseudo multiple-Doppler analyses of a dryline utilizing very-high resolution mobile Doppler radar data.
(2004)
The dryline has long been associated with the development of severe thunderstorms in the southern Plains during the spring and early summer months. The propagation and structure of the dryline are closely tied to surface ...