Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2015, Vol. 12, No. 3, pp. 27-35
Multiscale digital terrain map analysis. Experimental regularities
1 Space Research Institute RAS, Moscow, Russia
The paper presents experimental results of ridge and valley analysis carried out by automated LESSA ("Lineament Extraction and Stripe Statistical Analysis") software. Digital terrain maps of a wide range of regions of the Earth were analyzed in a wide range of scales. Results showed that summary ridges and valleys length grows linearly with the increase in scale (increased resolution). This may be due to the fractal feature of terrain. In order to obtain reliable measurement of the direction of ridges and valleys an additive threshold value for the concurrency of ridges and valleys was experimentally determined. Mean orientation of the different size (scale) relief elements orientation were compared. Sometimes small data scale changes lead to significant change –“jump” – in orientation. After analysis of a large range of terrains, "special scales" were found, for which this "jump" occurred much more frequently than for other scales. It is possible, that this result shows that sizes of tectonic structures are discrete, which was proposed in a number of publications. It is important to note that these "special scales" were found as a result of automated analysis and that technological parameters of measurement do not influence this general result.
Keywords: digital terrain map, ridges and valleys, multiscale analysis, special scales, fractality
Full textReferences:
- Dmitrievskaya T.V., Ryabukhina S.G., Dvoretskii P.I., Ponomarev V.A., Zaitsev V.A.. Vliyanie struktury poverkhnosti fundamenta na kharakter raspredeleniya neftyanykh i gazovykh mestorozhdenii Timano-Pechorskogo basseina (Basement surface structure effect on the character of the oil and gas deposits distribution in the Timano-Pechorsky basin), Geologiya nefti i gaza, 2000, No. 4, pp.56–58.
- Zlatopol'sky A.A. Mul'timasshtabnyi analiz orientatsii tekstury poverkhnosti Zemli.Osobye masshtaby (Multiscale Earth surface texture orientation analysis. Special scales), Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2012, Vol. 9, No. 32, pp. 26–37.
- Zlatopol'sky A.A. Mul'timasshtabnyi analiz orientatsii tekstury poverkhnosti Zemli. Osobye masshtaby. Vtoraya chast' (Multiscale Earth surface texture orientation analysis. Special scales. Part two), Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2013, Vol. 10, No. 2, pp. 295–304.
- Zlatopol'sky A.A. Novye vozmozhnosti tekhnologii LESSA i analiz tsifrovoi modeli rel'efa. Metodicheskii aspekt, (New LESSA technology resources and digital terrain map analysis. Methodology), Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2011, Vol. 8, No. 3, pp. 38–46.
- Miloserdova L.V. O vliyanii masshtabnogo faktora na preimushchestvennuyu orientirovku megatreshchinovatosti (Scaling effect on the megafractures orientation), Vestnik MGU, ser. geolog., 1982, No. 4, pp. 99–103.
- Cheeney, R. F. Statistical Methods in Geology, London, 1983, 169 p.
- Shkarin V.V. Diskretnost' razmerov geologicheskikh ob"ektov i distantsionnye metody (Geological objects size discontinuity and remote sensing), In: Avtomatizirovannyi lineamentnyi analiz pri strukturno-geologicheskikh i metallogenicheskikh issledovaniyakh (Automated lineament analysis in structural geological and metallogenic studies), Leningrad: VSEGEI, 1988, pp. 35–48.