letters to the editor

letters to the editor Comments on "Integration of space and terns from missing information. However, the scale of the depicted structures seems to be synoptic rather in situ observations to study global than small scale with an approximate diameter of 10°. climate change" Closer inspection of the data assimilation scheme of ECMWF reveals that it is based on 660 km x 660 km In a recent article, Bengtsson and Shukla (1988) sug- x 330 hPa boxes and that synop observations are gested a reanalysis of one or two decades of world- taken as less important than geopotential height field wide data with the present analysis scheme of the informations. In the optimum interpolation of the ECMWF including one day forecast by the present scheme, true subgrid scale variations are treated as model. This dataset could then be used to study "observational errors." Since subsynoptic scales pro- climate related statistics of the atmospheric circula- duce atmospheric motions that contribute to turbu- tions. Numerical forecast models have been used lence and air-sea fluxes, this results in a bias in the before for climate studies. However, long term statis- computed air-sea interaction fluxes. Also, the eddy tics were not possible because of the frequent im- energy http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Bulletin of the American Meteorological Society American Meteorological Society

letters to the editor

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Publisher
American Meteorological Society
Copyright
Copyright © American Meteorological Society
ISSN
1520-0477
D.O.I.
10.1175/1520-0477-72.2.242
Publisher site
See Article on Publisher Site

Abstract

Comments on "Integration of space and terns from missing information. However, the scale of the depicted structures seems to be synoptic rather in situ observations to study global than small scale with an approximate diameter of 10°. climate change" Closer inspection of the data assimilation scheme of ECMWF reveals that it is based on 660 km x 660 km In a recent article, Bengtsson and Shukla (1988) sug- x 330 hPa boxes and that synop observations are gested a reanalysis of one or two decades of world- taken as less important than geopotential height field wide data with the present analysis scheme of the informations. In the optimum interpolation of the ECMWF including one day forecast by the present scheme, true subgrid scale variations are treated as model. This dataset could then be used to study "observational errors." Since subsynoptic scales pro- climate related statistics of the atmospheric circula- duce atmospheric motions that contribute to turbu- tions. Numerical forecast models have been used lence and air-sea fluxes, this results in a bias in the before for climate studies. However, long term statis- computed air-sea interaction fluxes. Also, the eddy tics were not possible because of the frequent im- energy

Journal

Bulletin of the American Meteorological SocietyAmerican Meteorological Society

Published: Feb 1, 1991

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