Evaluation of a multivariate variational assimilation of conventional and satellite data for the diagnosis of cyclone systemsA variational data assimilation method for the study of cyclone-scale weather systems is described. The variational data assimilation method is to incorporate primitive equations for a moist, convectively unstable atmosphere and the radiative transfer equation. The variables to be adjusted include the three-dimensional vector wind, height, temperature, and moisture from rawinsonde data, and cloud-wind vectors, moisture, and radiance from satellite data. The development of variational model 1 which contains two nonlinear horizontal momentum equations, an integrated continuity equation, and a hydrostatic equation is examined. Examples applying the assimilation model to rawinsonde and satellite data are presented.
Document ID
19870036068
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Achtemeier, Gary L. (Illinois State Water Survey Champaign, IL, United States)
Ochs, H. T., III (Illinois State Water Survey Champaign, IL, United States)
Kidder, S. Q. (Illinois State Water Survey Champaign, IL, United States)
Scott, R. W. (Illinois State Water Survey Climate and Meteorology Section, Champaign, United States)