Structure Analysis and Classification of Precipitation Cells by Fractal Geometry

Structure Analysis and Classification of Precipitation Cells by Fractal Geometry

This paper analyzes the possibility to discriminate between convective precipitation and stratiform precipitation. This study aims to improve the measurement of rainfall from teledetection data obtained both on the ground and in space. For this, two parameters, fractal dimension and fractal lacunari...

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Veröffentlicht in:电子科技学刊 2014, Vol.12 (2), p.220-223
1. Verfasser: Nafissa Azzaz Boualem Haddad
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Sprache:eng
Schlagworte:
es细胞
分形几何
分形维数
分类
对流性降水
层状云降水
沉淀
结构分析
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description This paper analyzes the possibility to discriminate between convective precipitation and stratiform precipitation. This study aims to improve the measurement of rainfall from teledetection data obtained both on the ground and in space. For this, two parameters, fractal dimension and fractal lacunarity, are considered. To calculate the fractal dimension, we use the approach of box-counting and show that the fractal dimension differs between convectives cells and stratiforms ones. And then the fractal lacunarity parameter is calculated by using the sliding boxes algorithm. The study for all the regions shows that precipitation cells can be described by different lacunarities whatever the scale of analysis. We deduce that the two parameters, fractal dimension and fractal lacunarity, can be used to classify precipitations in convective regime and stratiform regime.
doi_str_mv 10.3969/j.issn.1674-862X.2014.02.016
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subjects es细胞
分形几何
分形维数
分类
对流性降水
层状云降水
沉淀
结构分析
title Structure Analysis and Classification of Precipitation Cells by Fractal Geometry
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