Geomorphometric Methods Application for Lake Ladoga Bottom Morphology Investigation

Мұқаба

Дәйексөз келтіру

Толық мәтін

Аннотация

Abstract

—In present research results of Lake Ladoga bottom morphology analysis are presented. Semi-automated instrumental classification of digital bathymetric model with application of geomorphometric parameters was executed to achieve the goal. Bathymetric position index and slope were used as classifiers. As a result, 8 types of surfaces were distinguished, which were mapped on the morphological scheme. Plains, slopes and linear top (ridges, heights) and bottom (hollows, depressions) were distinguished. Combinations of such elements allow to contour 3 zones which correlate to morphostructural areas: South-Ladoga, Central-Ladoga, North-Ladoga. Differences of these zones depend on both lake’s basin geological structure and exogenous factors of Late-Pleistocene-Holocene (glacial, glacial lacustrine processes). The suggested approach proves high efficiency for Lake Ladoga greatly variable morphology study.

Авторлар туралы

A. Aksenov

Saint-Petersburg State University; FSBI “Arctic and Antarctic research institute”

Хат алмасуға жауапты Автор.
Email: aksenov2801@gmail.com
Russia, Saint-Petersburg; Russia, Saint-Petersburg

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© А.О. Аксенов, 2023