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Satellite Gravity and the Geosphere Contributions to the Study of the Solid Earth and Its Fluid Envelopes (1997) / Chapter Skim
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8 THE DYNAMIC ATMOSPHERE: UNRAVELING THE CONTRIBUTIONS OF THE EARTH'S SUBSYSTEMS
Pages 79-86

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From page 79...
... This has been discussed in general in Chapter 1 and has been further addressed for each relevant geophysical application in later chapters. In summary, uncertainties in atmospheric pressure data used to remove the atmospheric signal from the gravity estimates are large enough that they could sometimes be the dominant error source for hydrological or glaciological estimates.
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From page 80...
... and can occur over a wide spectrum of temporal and spatial scales, particularly at high and mid-latitudes (Figure 8.5~. These anomalies chit around, decay, develop, and merge, usually with a slight net eastward phase speed at midlatitudes, and a net westward phase speed at low lati
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From page 81...
... atmospheric surface pressure data using the same linear combination of the spherical harmonic coefficients to which the observations are sensitive. Solid line: NIB model; dashed line: IB model.
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From page 82...
... Ol1 sI] ol-t~ time scales, ~:lt~las~aso~>al ~a~riabil~ity includes the imported e#>c1s of cold {blocking)
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From page 83...
... Concur intend ~ 0.4 mob (go zeta lined Red ~ revolve and blue ~ positive. Each panel shows ~t surgeon pressure at a given time of day minus the daily mean.
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From page 85...
... 85 1 The accumulated effect of several events may have larger diameters (approximately 1/4 of United States) and longer time scales (months)
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From page 86...
... involved in gravity variations. With increasing accuracy in gravity measurement, precise knowledge of the uncertainty in atmospheric 1 SATELLITE GRA V17~Y AND THE GEOSPHERE surface pressure at seasonal, annual, and secular time scales becomes increasingly important 2.
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Key Terms

  • atmospheric signal
  • annual cycle
  • satellite gravity
  • atmospheric pressure
  • gravity field

  • gravity measurements
  • air shuttle
  • pressure data
  • monthly ceven
  • den dool

  • van den
  • satellite laser
  • phase speed
  • atmospheric surface
  • ceven calculated

  • proxy data
  • using satellite
  • data type
  • pressure anomalies
  • mass variations

  • daily mean
  • atmospheric tides
  • gravity data
  • laser ranging
  • southern hemisphere

  • equilibrium seasonal
  • specific universal
  • pressure difference
  • january climatologies
  • variation due


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