Journal article

Cloud type comparisons of AIRS, CloudSat, and CALIPSO cloud height and amount

Kahn B, Chahine M, Stephens G, Mace G, Marchand R, Wang Z, Barnet C, Eldering A, Holz R, Kuehn R, Vane D ...see all

Atmospheric Chemistry and Physics Discussions, vol. 7, issue 5 (2007) pp. 13915-13958

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Abstract

The precision of the two-layer cloud height fields derived from the Atmospheric Infrared Sounder (AIRS) is explored and quantified for a five-day set of observations. Coincident profiles of vertical cloud structure by CloudSat, a 94 GHz profiling radar, and the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO), are compared to AIRS for a wide range of cloud types. Bias and variability in cloud height differences are shown to have dependence on cloud type, height, and amount, as well as whether CloudSat or CALIPSO is used as the comparison standard. The CloudSat-AIRS biases and variability range from 4.3 to 0.5 1.2-3.6 km for all cloud types. Likewise, the CALIPSO-AIRS biases range from 0.6-3.0 1.2-3.6 km (-5.8 to -0.2 0.5-2.7 km) for clouds 7 km (

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Authors

  • B. H. Kahn

  • M. T. Chahine

  • G. L. Stephens

  • G. G. Mace

  • R. T. Marchand

  • Z. Wang

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