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- W3126863685 abstract "Water runoff on the slopes of the permafrost zone passes through a network of hollows of various structures and patterns in plan. This is clearly distinguishable on aerial and satellite images, but often poorly distinguished on the ground. The study is aimed at recognizing the reasons for the difference in the structure of the drainage network, which is necessary for understanding the mechanisms of surface runoff generation and the modern relief formation in the permafrost areas. In the vicinity of Anadyr (Chukotka, Russia), three morphological types of the hollow network were identified. In the areas of distribution of each type of hollow network field observations were made, and the morphometric characteristics of the slopes to which they are associated were obtained from the digital surface model and satellite images. Each type of the hollow network corresponds to definite range of altitude, the type of relief, the slope gradient and profile, the composition of the deposits, and the depth of seasonal thawing. It has been established that although all types of troughs are used by temporary streams, they have different mechanisms of development. The hollows with a fan structure form the densest parallel network with a distance of 10–40 m apart. These are characteristic of concave slopes of interfluves with close bedding of bedrock and are the result of fluvial modeling of irregularities formed as a result of uneven sliding of the slope material (gelifluction). The intertwining troughs are confined to the slopes of the volcanic hills, the steepest of the studied ones. Fresh silty sediments have been observed at their bottoms and their formation is associated with erosional processes. Single hollows located at a considerable (200–300 m) distance from each other are formed in loose quaternary deposits with a developed network of ice-wedge-polygons. The role of thermokarst is significant in their deepening." @default.
- W3126863685 created "2021-02-15" @default.
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- W3126863685 date "2021-01-01" @default.
- W3126863685 modified "2023-09-27" @default.
- W3126863685 title "СТРУКТУРА СКЛОНОВОЙ ЛОЖБИННОЙ СЕТИ КРИОЛИТОЗОНЫ В ОКРЕСТНОСТЯХ г. АНАДЫРЯ" @default.
- W3126863685 doi "https://doi.org/10.31857/s0435428121010132" @default.
- W3126863685 hasPublicationYear "2021" @default.
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