Accessibility navigation

On the use of a time sequence of surface pressures in four-dimensional data assimilation

Bengtsson, L. (1980) On the use of a time sequence of surface pressures in four-dimensional data assimilation. Tellus, 32 (3). pp. 189-197. ISSN 0040-2826

Full text not archived in this repository.

It is advisable to refer to the publisher's version if you intend to cite from this work. See Guidance on citing.

To link to this item DOI: 10.1111/j.2153-3490.1980.tb00946.x


The possibility of using a time sequence of surface pressure observations in four-dimensional data assimilation is being investigated. It is shown that a linear multilevel quasi-geostrophic model can be updated successfully with surface data alone, provided the number of time levels are at least as many as the number of vertical levels. It is further demonstrated that current statistical analysis procedures are very inefficient to assimilate surface observations, and it is shown by numerical experiments that the vertical interpolation must be carried out using the structure of the most dominating baroclinic mode in order to obtain a satisfactory updating. Different possible ways towards finding a practical solution are being discussed.

Item Type:Article
Divisions:Science > School of Mathematical, Physical and Computational Sciences > Department of Meteorology
ID Code:31687

University Staff: Request a correction | Centaur Editors: Update this record

Page navigation