Quantitative regularities of the morphological structures formed by the linear dunes plains based on space imagery

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Abstract

The work presents the results of a study of the structure of a landscape pattern formed by clusters of longitudinal (linear) dunes using methods of mathematical morphology of the landscape. Quantitative patterns of the distribution of the lengths of dunes (lognormal distribution) and the spatial distribution of the points of origin, termination and intersection of Aeolian forms (Poisson distribution) in different physical and geographical regions have been revealed. The similarity of the structure of the drawings with other types of Aeolian morphogenesis is indicated.

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About the authors

T. V. Gonikov

Institute of Geoecology named after E.M. Sergeev RAS

Author for correspondence.
Email: gonikov.timur@yandex.ru
Russian Federation, Moscow

A. V. Zverev

Institute of Geoecology named after E.M. Sergeev RAS

Email: gonikov.timur@yandex.ru
Russian Federation, Moscow

S. M. Shadchinov

Lomonosov Moscow State Univercity

Email: gonikov.timur@yandex.ru

Faculty of Geography

Russian Federation, Moscow

V. V. Gonikov

Moscow State University of Geodesy and Cartography

Email: gonikov.timur@yandex.ru
Russian Federation, Moscow

References

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Supplementary files

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2. Fig. 1. Landscape pattern formed by longitudinal dunes in the Southern Sahara.

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3. Fig. 2. Layout of reference sites for interpretation of parallel-ridge aeolian ridges in different physical-geographical regions.

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4. Fig. 3. Example of a scheme for interpreting dunes for the Victoria site. Axial lines of dune complexes are highlighted in blue.

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5. Fig. 4. Example of the morphological structure of longitudinal dunes in the Sahara site.

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6. Fig. 5. Example of the morphological structure of longitudinal dunes in the Rub el Khali site.

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7. Fig. 6. Example of the morphological structure of longitudinal dunes in the Victoria site.

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8. Fig. 7. Example of the morphological structure of longitudinal dunes in the Simpson site.

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9. Fig. 8. Graphs of compliance with the lognormal distribution for dune lengths based on accumulated frequencies for four analysis sites.

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