An Assessment of the Impact of Satellite Microwave Sounder Incidence Angle and Scan Geometry on the Accuracy of Atmospheric Temperature Profile Retrievals

P. W. Rosenkranz Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts

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K. D. Hutchison Center for Remote Environmental Sensing Technology, Lockheed Martin Missiles and Space, Sunnyvale, California

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K. R. Hardy Center for Remote Environmental Sensing Technology, Lockheed Martin Missiles and Space, Sunnyvale, California

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M. S. Davis Center for Remote Environmental Sensing Technology, Lockheed Martin Missiles and Space, Sunnyvale, California

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Abstract

Cross-track and conical scan microwave sounder designs are compared with respect to temperature profile retrieval accuracy in nonprecipitating atmospheres and with respect to the beamfilling effect of precipitation. The conical design shows slightly better accuracy at pressure levels of 3 hPa or less, while the cross-track design performs slightly better at pressure levels of 850 hPa or greater. Under the assumption that precipitation-contaminated fields of view would be rejected, consideration of beamfilling by rain cells indicates that retrieval yield would be higher for the cross-track design.

Corresponding author address: Philip W. Rosenkranz, Research Laboratory of Electronics, Room 26-343, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139-4307.

Email: pwr@mit.edu

Abstract

Cross-track and conical scan microwave sounder designs are compared with respect to temperature profile retrieval accuracy in nonprecipitating atmospheres and with respect to the beamfilling effect of precipitation. The conical design shows slightly better accuracy at pressure levels of 3 hPa or less, while the cross-track design performs slightly better at pressure levels of 850 hPa or greater. Under the assumption that precipitation-contaminated fields of view would be rejected, consideration of beamfilling by rain cells indicates that retrieval yield would be higher for the cross-track design.

Corresponding author address: Philip W. Rosenkranz, Research Laboratory of Electronics, Room 26-343, Massachusetts Institute of Technology, 77 Massachusetts Ave., Cambridge, MA 02139-4307.

Email: pwr@mit.edu

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  • Atlas, D., D. Rosenfeld, and D. A. Short, 1990: The estimation of convective rainfall by area integrals. 1: The theoretical and empirical basis. J. Geophys. Res.,95, 2153–2160.

  • Austen, M. D., and Coauthors, 1976: Satellite observations of planetary waves in the mesosphere. Nature,260, 594–596.

    • Crossref
    • Export Citation
  • Briancon, A., and D. H. Staelin, 1985: Modeling the three-dimensional macrostructure of atmospheric temperature fields for the purpose of remote sensing. 1985 Int. Geoscience and Remote Sensing Symp. Digest, Amherst, MA, Institute of Electrical and Electronics Engineers, 357–362.

  • Carlson, B., and A. B. Wolf, 1993: Spatial and temporal characterization of diurnal cloud variability. Preprints, Fourth Symp. on Global Change Studies, Anaheim, CA, Amer. Meteor. Soc., 98–103.

  • Chedin, A., N. A. Scott, C. Wahiche, and P. Moulinier, 1985: The improved initialization inversion method: A high resolution physical method for temperature retrievals from satellites of the TIROS-N series. J. Climate Appl. Meteor.,24, 128–143.

    • Crossref
    • Export Citation
  • Escobar, J., 1993: Base de données pour la restitution de paramètres atmosphériques à l’échelle globale—Etude sur l’inversion par réseaux de neurones des données des sondeurs verticaux atmosphériques satellitaires présents et à venir. Ph.D. thesis, Ecole Polytechnique. [Available from Laboratoire de Météorologie Dynamique, Ecole Polytechnique, 91128 Palaiseau Cedex, France.].

  • Gasiewski, A. J., and D. H. Staelin, 1989: Statistical precipitation cell parameter estimation using passive 118-GHz O2 observations. J. Geophys. Res.,94, 18 367–18 378.

    • Crossref
    • Export Citation
  • Liu, G., and J. A. Curry, 1993: Determination of characteristic features of cloud liquid water from satellite microwave measurements. J. Geophys. Res.,98, 5069–5092.

    • Crossref
    • Export Citation
  • Rodgers, C. D., 1976: Retrieval of atmospheric temperature and composition from remote measurements of thermal radiation. Rev. Geophys. Space Phys.,14, 609–624.

    • Crossref
    • Export Citation
  • ———, 1990: Characterization and error analysis of profiles retrieved from remote sounding measurements. J. Geophys. Res.,95, 5587–5595.

    • Crossref
    • Export Citation
  • Rosenkranz, P. W., 1992: Rough-sea microwave emissivities measured with the SSM/I. IEEE Trans. Geosci. Remote Sens.,30, 1081–1085.

    • Crossref
    • Export Citation
  • ———, 1995: A rapid transmittance algorithm for microwave sounding channels. IEEE Trans. Geosci. Remote Sens.,33, 1135–1140.

    • Crossref
    • Export Citation
  • ———, and D. H. Staelin, 1988: Polarized thermal microwave emission from oxygen in the mesosphere. Radio Sci.,23, 721–729.

    • Crossref
    • Export Citation
  • Short, D. A., and G. R. North, 1990: The beam filling error in the Nimbus 5 electronically scanning microwave radiometer observations of Global Atlantic Tropical Experiment rainfall. J. Geophys. Res.,95, 2187–2193.

    • Crossref
    • Export Citation
  • Stogryn, A., 1989a: The magnetic field dependence of brightness temperatures at frequencies near the O2 microwave absorption lines. IEEE Trans. Geosci. Remote Sens.,27, 279–289.

    • Crossref
    • Export Citation
  • ———, 1989b: Mesospheric temperature sounding with microwave radiometers. IEEE Trans. Geosci. Remote Sens.,27, 332–338.

    • Crossref
    • Export Citation
  • von Zahn, U., and W. Meyer, 1989: Mesopause temperatures in polar summer. J. Geophys. Res.,94, 14 647–14 651.

    • Crossref
    • Export Citation
  • Waters, J. W., 1993: Microwave limb sounding. Atmospheric Remote Sensing by Microwave Radiometry, M. A. Janssen, Ed., Wiley, 383–434.

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