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AGU: Geophysical Research Letters

 

Index Terms

  • Atmospheric Composition and Structure: Cloud physics and chemistry
  • Meteorology and Atmospheric Dynamics: Remote sensing
  • Information Related to Geographic Region: Arctic region

Abstract

Improving IR cloud phase determination with 20 microns spectral observations

Carsten Rathke

Institut für Weltraumwissenschaften, Freie Universität Berlin, Germany

Jürgen Fischer

Institut für Weltraumwissenschaften, Freie Universität Berlin, Germany

Steven Neshyba

Chemistry Department, University of Puget Sound, Tacoma, Washington, USA

Matthew Shupe

Science and Technology Corporation, NOAA-Environmental Technology Laboratory, Boulder, Colorado, USA

Adding 20 μm spectral observations to observations in the 8–12 μm region can significantly improve infrared cloud phase determination from both space and the surface. We demonstrate this with 7–20 μm radiance spectra of Arctic stratus clouds measured by a ship-based FTIR spectrometer during the SHEBA experiment. Our results are compared with phase classifications obtained from lidar, microwave radiometer, and radar data.

Published 20 April 2002.

Citation: Rathke, C., J. Fischer, S. Neshyba, and M. Shupe (2002), Improving IR cloud phase determination with 20 microns spectral observations, Geophys. Res. Lett., 29(8), 1209, doi:10.1029/2001GL014594.

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