During the past decade, the scale invariance in space-time rainfall, and the inter-dependence between spatial and temporal scales, have been demonstrated. The concept of dynamic scaling facilitates a description of the joint space-time variability, thus resulting in a more compact mathematical treatment. Accordingly, the space-time dynamics of rainfall fields is investigated and modeled using spectral techniques. A three-dimensional Fractional non-Brownian Motion (Lognormal and Pareto types) generator is used to produce synthetic space-time rainfall fields. Some observed fields, from the GATE I dataset, are analyzed and compared with simulated results.
Spectral analysis and modeling of space-time rainfall fields
DE MICHELE, CARLO;
2005-01-01
Abstract
During the past decade, the scale invariance in space-time rainfall, and the inter-dependence between spatial and temporal scales, have been demonstrated. The concept of dynamic scaling facilitates a description of the joint space-time variability, thus resulting in a more compact mathematical treatment. Accordingly, the space-time dynamics of rainfall fields is investigated and modeled using spectral techniques. A three-dimensional Fractional non-Brownian Motion (Lognormal and Pareto types) generator is used to produce synthetic space-time rainfall fields. Some observed fields, from the GATE I dataset, are analyzed and compared with simulated results.File | Dimensione | Formato | |
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