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  • METEOROLOGY AND CLIMATOLOGY  (5)
  • 1980-1984  (5)
  • 1965-1969
  • 1981  (5)
  • 1
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    Numerical prediction of the monsoon depression of 5-7 July 1979 (1981)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-18
    Beschreibung: A well defined monsoon depression was used for two assimilation and forecast experiments: (1) using conventional surface and upper air data, (2) using these data plus Monex data. The data sets were assimilated and used with a general circulation model to make numerical predictions. The model, the analysis and assimilation procedure, the differences in the analyses due to different data inputs, and the differences in the numerical predictions are described. The MONEX data have a positive impact, although the differences after 24 hr are not significant. The MONEX assimilation does not agree with manual analysis location of depression center. The 2.5 x 3 deg horizontal resolution of the prediction model is too coarse. The assimilation of geopotential height data derived from satellite soundings generated gravity waves with amplitudes similar to the meteorologically significant features investigated.
    Schlagwort(e): METEOROLOGY AND CLIMATOLOGY
    Materialart: WMO Intern. Conf. on Early Results of FGGE and Large-Scale Aspects of its Monsoon Expt.; 8 p
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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    NASA TECHNICAL REPORTS
  • 2
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    The role of zonally asymmetric heating in the vertical and temporal structure of the global scale flow fields during FGGE SOP-1 (1981)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-18
    Beschreibung: By examining the vertical structure of the low order spherical harmonics of the divergence and vorticity fields, the relative contribution of tropical and monsoonal circulations upon the global wind fields was estimated. This indicates that the overall flow over North America and the Pacific between January and February is quite distinct both in the lower and upper troposphere. In these longitudes there is a stronger tropical overturning and subtropical jet stream in January than February. The divergent flow reversed between 850 and 200 mb. Poleward rotational flow at upper levels is associated with an equatorward rotational flow at low levels. This suggests that the monsoon and other tropical circulations project more amplitude upon low order (global scale) representations of the flow than do the typical midlatitude circulations and that their structures show conspicuous changes on a time scale of a week or less.
    Schlagwort(e): METEOROLOGY AND CLIMATOLOGY
    Materialart: WMO Intern. Conf. on Early Results of FGGE and Large-Scale Aspects of its Monsoon Expt.; 9 p
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 3
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    Numerical prediction of the monsoon depression of 5-7 July, 1979 (1981)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-18
    Beschreibung: The objective analysis and assimilation procedure with the FGGE/MONEX data are described. Numerical predictions with the GLAS general circulation model were made from the two initial conditions arrived at by assimilating the two different data sets. The model, the analysis and assimilation procedure, the differences in the analyses due to different data inputs, and the differences in the numerical prediction of monsoon depressions are outlined.
    Schlagwort(e): METEOROLOGY AND CLIMATOLOGY
    Materialart: Modeling and Simulation Facility: Res. Rev., 1980 - 1981; p 223-230
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 4
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    The state of the atmosphere as inferred from the FGGE satellite observing systems during SOP-1 (1981)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-18
    Beschreibung: The statistical properties, and coverage, of satellite temperature sounding data are described. Tropical regions are observed every two days, extratropics from one to four times a day. Oceans are covered two to three times a day. Asynoptic coverage is comparable to the U.S. rawinsonde network twice daily coverage. Lack of ground truth for data sparse areas makes accuracy difficult to assess. The rms differences of layer mean temperatures obtained from collocating rawinsonde observations with satellite temperature profiles in space and time differ from rms differences of layer mean satellite temperature soundings. The FGGE satellite systems can infer the three dimensional motion field and improve the representation of the large scale state of the atmosphere.
    Schlagwort(e): METEOROLOGY AND CLIMATOLOGY
    Materialart: WMO Intern. Conf on Early Results of FGGE and Large-Scale Aspects of its Monsoon Expt.; 15 p
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
  • 5
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    Numerical prediction of the large scale tropical flow (1981)
    In:  Other Sources
    Details
    Publikationsdatum: 2011-08-18
    Beschreibung: The mean error characteristics of two series of forecasts of the tropical flow were studied. By using as initial conditions analyses made with and without the FGGE special observing system, the impact that initial data has on the accuracy of the forecasts is estimated.
    Schlagwort(e): METEOROLOGY AND CLIMATOLOGY
    Materialart: Modeling and Simulation Facility: Res. Rev., 1980 - 1981; p 37-45
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    NASA TECHNICAL REPORTS
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