Abstract: The aspects of the navy's multivariate optimum interpolation (MVOI) for atmospheric analysis are presented. Included is an overview of how the MVOI is used in the navy's data-assimilation system, and the basic design of ...

Abstract: Analyzing and balancing wind and mass fields on constant pressure surfaces and then interpolating the results to model coordinates cause significant errors, which lower verification scores and create inertial gravity noise. ...

Abstract: Empirical formulas which have been derived to describe the profiles of wind, temperature and humidity through the atmospheric surface boundary layer (SBL) are used to derive equations predicting the fluxes of momentum, ...

Abstract: An air?soil layer coupled scheme is developed to compute surface fluxes of sensible heat and latent heat from data collected at the Oklahoma Atmospheric Radiation Measurement?Cloud and Radiation Testbed (ARM?CART) stations. ...

Abstract: Two versions of the NOGAPS model are used to generate normal-mode balanced datasets. The various forces that act on gravitational modes are then examined to determine the modes whose coefficient time tendencies are ...

Abstract: The statistical analysis of innovation (observation minus forecast) vectors is one of the most commonly used techniques for estimating observation and forecast error covariances in large-scale data assimilation. Building ...

Abstract: On 29 November 1991 a series of collisions involving 164 vehicles occurred on Interstate 5 in the San Joaquin Valley in California in a dust storm that reduced the visibility to near zero. The accompanying high surface ...

Abstract: A two-dimensional axially symmetric computer model was used to study downwash-induced fog clearings. In order to produce a clearing the helicopter downwash must reach the ground while the helicopter hovers at or above the ...