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Proceedings Paper

Multifractal characterization of nonstationarity and intermittency of cloud base height signals
Author(s): Nadia S. Gospodinova; K. Ivanova; Eugene E. Clothiaux; Thomas P. Ackerman
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Paper Abstract

Cloud base profiles measured with laser ceilometer are studied using multifractal approach. The method assesses nonstationarity and intermittency pertinent to such highly fluctuating signals. The irregular structure of the signals is a benchmark for non-linear dynamics processes. The analysis searches for the scaling properties of q-th order singular measures and q-th order structure functions. Therefore, the method seeks for various scales of self-affinity, i.e. searches for multi-affinity. We found that multifractality is the signature of the cloud base height profiles, characterized with a hierarchy of exponents q H(q) and K(q). The value of the roughness parameter H1 is consistent with the one obtained for the same data using different method of analysis. The multifractal behavior is consistent also with the multi- affine properties of other atmospheric data recorded simultaneously during the same field experiment ASTEX'92.

Paper Details

Date Published: 9 April 2001
PDF: 5 pages
Proc. SPIE 4397, 11th International School on Quantum Electronics: Laser Physics and Applications, (9 April 2001); doi: 10.1117/12.425187
Show Author Affiliations
Nadia S. Gospodinova, Institute of Electronics (Bulgaria)
K. Ivanova, Institute of Electronics and The Pennsylvania State Univ. (Bulgaria)
Eugene E. Clothiaux, The Pennsylvania State Univ. (United States)
Thomas P. Ackerman, Pacific Northwest National Lab. (United States)

Published in SPIE Proceedings Vol. 4397:
11th International School on Quantum Electronics: Laser Physics and Applications
Peter A. Atanasov; Stefka Cartaleva, Editor(s)

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