The mass balance in diagnostic studies: an example of analysed and forecast data calculations

Hannu Savijärvi

doi:10.3402/tellusa.v34i6.10839

The mass balance in diagnostic studies: an example of analysed and forecast data calculations

Tellus

Volume 34 (1982): Issue 6

By: Hannu Savijärvi

Open Access

|Jan 1982

Abstract

The effects of non-zero mass balance, often encountered in diagnostic studies using observed data, are discussed for atmospheric energy budget equations written in sigma coordinates. An example of these effects is given by comparing the annual sensible heat budget over North America calculated from ECMWF grid point analyses and operational forecasts. The systematic height errors of the model appear as a local mass imbalance.

References

Alestalo , M . 1981 . The energy budget of the earth-atmosphere system in Europe . Tellus 33 , 360 – 371 .
Search in Google Scholar Back to article
Bengtsson , L. and Lange , A . 1981 . Results of the WMOICAS NWP data study and intercomparison project for forecasts for the Northern Hemisphere in 1979-80 . WMO , Geneva .
Search in Google Scholar Back to article
Derome , J . 1981 . On the average errors of an ensemble of forecasts . Atmosphere-Ocean 19 , 103 – 127 .
Search in Google Scholar Back to article
Kung , E. C . 1967 . Diurnal and long-term variations of the kinetic energy generation and dissipation for a five-year period . Mon. Wea. Rev . 95 , 593 – 606 .
Search in Google Scholar Back to article
O'Brien J . 1970 . Alternative solutions to the classical vertical velocity problem . J. Appl. Meteorol . 9 , 197 – 203 .
Search in Google Scholar Back to article
Pedder , M . 1981 . On the errors of kinematic vertical motion estimation using bias adjustment procedures . Mon. Wea. Rev . 109 , 1813 – 1816 .
Search in Google Scholar Back to article
Perry , J. S . 1967 . Long wave energy processes in the 1963 sudden stratospheric warming . J. A tmos. Sci . 24 , 539 – 550 .
Search in Google Scholar Back to article
Savijärvi , H . 1977 . The interaction of the monthly mean flow and large-scale transient eddies in two different circulation types: vorticity and temperature balance . Geophysica 14 , 207 – 229 .
Search in Google Scholar Back to article
Savijärvi , H . 1981 .. The energy budgets in North America, North Atlantic and Europe based on ECMWF analyses and forecasts. Technical Report No. 27, ECMWF. 31 pp. , ECMWF, Reading , England .
Search in Google Scholar Back to article
Savijärvi , H . 1981 .. On the mass balance correction in diagnostic studies. Technical Memorandum No. 44, ECMWF. 12 pp., ECMWF, Reading , England .
Search in Google Scholar Back to article
Temperton , C. and Williamson , D . 1979 . Normal mode initialization for a multi-level grid point model. Technical Report No. 11, ECMWF. 99 pp., ECMWF, Reading , England .
Search in Google Scholar Back to article