Abstract: An attempt is made to provide a brief but comprehensive summary of sources of error in National Weather Service upper air data, and a guide to the relevant literature. Error analysis must be tailored for particular ...

Abstract: The frequency averaging implicit in the calculation of space-time spectra complicates the interpretation of eastward and westward variance and covariance components. One-sided (in frequency) space-time spectral definitions ...

Abstract: Several features of the one-sided space-time spectrum of the zonal and meridional wind components are discussed. The spectra show bands of energy corresponding to eastward moving disturbances, a transition from a red to a ...

Abstract: Spectra computed for the midlatitude troposphere indicate that both the NCAR and GFDL models have less variance than the atmosphere in most space and time scales. The deficiency is most serious for low-frequency planetary ...

Abstract: The general character of zonally propagating fluctuations in the mid-latitude troposphere is illustrated using the quadrature spectrum of the zonal sine and cosing Fourier coefficients. It is shown that for low frequencies ...

Abstract: No abstract available.