scholarly journals Structure and Late Cenozoic Development of Valleys at the Severnye Uvaly Upland

2020 ◽  
Vol 19 (4) ◽  
pp. 303-316
Author(s):  
V. Yu. Ukraintsev ◽  
◽  
I. S. Voskresenskiy ◽  
Keyword(s):  
Digital Elevation Models ◽  
River Valley ◽  
Geological Survey ◽  
Late Cenozoic ◽  
Gold Placer ◽  
Open File ◽  
Digital Elevation ◽  
The One ◽  
River Valleys

Using public materials (articles, open-file reports of geological survey at the Severnye Uvaly, and digital elevation models), we studied river valleys of the Severnye Uvaly Upland and established specific types of gold placer-like occurrences and interconnection between river valley structure and placer location. We distinguished 4 cycles of erosion in Late Cenozoic at the Severnye Uvaly. For placer forming, the one of the most important features is a spatial coincidence of valleys in every cycle of erosion. An analysis of the longitudinal and transverse profiles of the valleys according to the DSM allows evaluating the content of the gold and its location in the river valley.

scholarly journals The names of the coast and forms of coastal relief in the Kostroma Region’s patois: landscape and geographical aspect

Neophilology ◽  
2021 ◽  
pp. 227-234
Author(s):  
Galina D. Neganova
Keyword(s):  
Morphological Characteristics ◽  
River Valley ◽  
The Other ◽  
Semantic Group ◽  
Semantic Level ◽  
Low Level ◽  
Regional Dialect ◽  
The One ◽  
River Valleys ◽  
Obscure Origin

One of the most detailed systems of terms in regional dialect systems of the language is the terminology of rivers and river valleys, lakes and lake basins. We explore the repertoire of folk geographical terms used in the patois of the Kostroma Region, which are associated with such part of the river valley as the coast. We analyze language units, on the one hand, in the coordinates of the lexical and semantic group, on the other, in relation to the designated objects. We identify the correspondence of terms and their semantics to the nominated forms of coastal relief. In the plan “Program of collecting information for the lexical atlas of Russian folk patois” we consider the general names of the coast and the names that actualize its morphological characteristics – the names of low, low-level and high steep coast, the names of coastal relief forms, such as a cape and a sandbank. At the lexical and semantic level, we trace the connection of local names with the terminological system of the geographical landscape. The repertoire of the terms group under consideration includes mainly words with a transparent inner form, their semantics reflect the features of the coastal relief. At the same time, in the Kostroma Region’s patois, words of obscure origin are encountered, which can be attributed to the substrate vocabulary. In general, the nomenclature of the terms under consideration fits into the concept of the vocabulary continuity of the Kostroma patois.

scholarly journals Photogrammetric Measurement of Erosion at the Sabbath Point Beothuk Site in Central Newfoundland, Canada

2020 ◽  
Vol 12 (18) ◽  
pp. 7555
Author(s):  
James Williamson ◽  
Ionut Cristi Nicu
Keyword(s):  
Low Cost ◽  
Digital Elevation Models ◽  
Archaeological Site ◽  
River Valley ◽  
Archaeological Sites ◽  
Archaeological Research ◽  
Grass Gis ◽  
Digital Elevation ◽  
Photogrammetric Measurement

Erosion at archaeological sites in Central Newfoundland, Canada is a major concern, which is compounded by the fact that there has been a dearth of archaeological research in this region. While more than 70 house pits are known, very few excavations have examined whole features in the Exploits River Valley (ERV), and the archaeology of many has not been examined yet. The aim of this study is to examine the rate of erosion at the Sabbath Point house pit, a recently recorded archaeological site, located on the bank of Red Indian Lake (RIL), and to describe a low-cost methodology for analysing site level bank changes. This site is particularly important, as it represents an example of a late Beothuk residential feature about lifeways practiced in this region. The surveys employed here were carried out using image-based modelling. GRASS GIS was used to measure the diachronic difference between bank edges. The Digital Elevation Models (DEMs) were then compared, and the differences were measured using a transect based method. The erosion measurement has shown that Sabbath Point is in danger of being completely eroded. This shows that a salvage excavation program covering the entire feature is necessary within the next few years, as the feature itself will begin to erode.

scholarly journals Glacier mapping: a review with special reference to the Indian Himalayas

2009 ◽  
Vol 33 (5) ◽  
pp. 672-704 ◽  
Author(s):  
Rakesh Bhambri ◽  
Tobias Bolch
Keyword(s):  
Nineteenth Century ◽  
Special Reference ◽  
Digital Elevation Models ◽  
Geological Survey ◽  
Data Sets ◽  
Volume Changes ◽  
Glacier Fluctuations ◽  
Digital Elevation ◽  
Glacier Mapping ◽  
Indian Himalayas

This paper deals with the development of glacier mapping and glacier fluctuations since the mid-nineteenth century, with special reference to the Indian Himalayas, and the contributions of the Survey of India and the Geological Survey of India. In addition, it presents a review of the limitations and challenges relating to: the mapping of clean-ice and debris-covered glaciers; the comparison of different data sets; and the measurement of glacier volume changes based on multitemporal digital elevation models. Possible solutions are discussed, and the emerging areas of glacier mapping research and applications for the Indian Himalayas are highlighted.

Assessment of flora diversity in a minor river valley using ecological indicator values, Geographical Information Systems and Digital Elevation Models

2014 ◽  
Vol 9 (2) ◽  
pp. 220-231 ◽  
Author(s):  
Bożenna Czarnecka ◽  
Łukasz Chabudziński
Keyword(s):  
Information Systems ◽  
Geographical Information Systems ◽  
Digital Elevation Models ◽  
River Valley ◽  
Geographical Information ◽  
Ecological Indicator ◽  
Indicator Values ◽  
Vascular Flora ◽  
Digital Elevation ◽  
A Minor

AbstractEllenberg indicator values (EIV) have been widely used to estimate habitat variables from floristic data and to predict vegetation composition based on habitat properties. Geographical Information Systems (GIS) and Digital Elevation Models (DEM) are valuable tools for studying the relationships between topographic and ecological characters of river systems. A 3-meter resolution DEM was derived for a. 3-km-long break section of the Szum River (SE Poland) from a 1:10,000 topographic map. Data on the diversity and ecological requirements of the local vascular flora were obtained while making floristic charts for 32 sections of the river valley (each 200 m long) and physical and chemical soil measurements; next, the data were translated into EIV. The correlations of the primary and secondary topographic attributes of the valley, species richness, and EIV (adapted for the Polish vascular flora) were assessed for all species recognized in each valley section. The total area and proportion of a flat area, mean slope, slope curvature, solar radiation (SRAD), and topographic wetness index (TWI) are the most important factors influencing local flora richness and diversity. The highest correlations were found for three ecological indicators, namely light, soil moisture, and soil organic content. The DEM seems to be useful in determination of correlations between topographic and ecological attributes along a minor river valley.

Digital Elevation Models

10.1596/34445 ◽  
2020 ◽  
Author(s):  
Louise Croneborg ◽  
Keiko Saito ◽  
Michel Matera ◽  
Don McKeown ◽  
Jan van Aardt
Keyword(s):  
Digital Elevation Models ◽  
Digital Elevation

STUDY OF THE LANDSLIDE MORPHOLOGY BASED ON GNSS DATA AND AIRBORNE SOUNDING (ON THE EXAMPLE OF A SECTION OF THE PROTVA RIVER VALLEY)

2018 ◽  
Vol 12 (5-6) ◽  
pp. 50-57 ◽  
Author(s):  
I. S. Voskresensky ◽  
A. A. Suchilin ◽  
L. A. Ushakova ◽  
V. M. Shaforostov ◽  
A. L. Entin ◽  
...  
Keyword(s):  
Digital Elevation Model ◽  
Geodetic Network ◽  
Aerial Survey ◽  
River Valley ◽  
Ease Of Use ◽  
Digital Elevation ◽  
Loose Deposits ◽  
Positioning Method ◽  
Landslide Body ◽  
Elevation Model

To use unmanned aerial vehicles (UAVs) for obtaining digital elevation models (DEM) and digital terrain models (DTM) is currently actively practiced in scientific and practical purposes. This technology has many advantages: efficiency, ease of use, and the possibility of application on relatively small area. This allows us to perform qualitative and quantitative studies of the progress of dangerous relief-forming processes and to assess their consequences quickly. In this paper, we describe the process of obtaining a digital elevation model (DEM) of the relief of the slope located on the bank of the Protva River (Satino training site of the Faculty of Geography, Lomonosov Moscow State University). To obtain the digital elevation model, we created a temporary geodetic network. The coordinates of the points were measured by the satellite positioning method using a highprecision mobile complex. The aerial survey was carried out using an unmanned aerial vehicle from a low altitude (about 40–45 m). The processing of survey materials was performed via automatic photogrammetry (Structure-from-Motion method), and the digital elevation model of the landslide surface on the Protva River valley section was created. Remote sensing was supplemented by studying archival materials of aerial photography, as well as field survey conducted immediately after the landslide. The total amount of research results made it possible to establish the causes and character of the landslide process on the study site. According to the geomorphological conditions of formation, the landslide refers to a variety of landslideslides, which are formed when water is saturated with loose deposits. The landslide body was formed with the "collapse" of the blocks of turf and deluvial loams and their "destruction" as they shifted and accumulated at the foot of the slope.

Detection and representation of the basic peculiarities of vegetation cover by the mapping method (experience based on a research of goltsy-taiga territories)

2013 ◽  
pp. 32-47
Author(s):  
S. V. Osipov
Keyword(s):  
Vegetation Cover ◽  
Mapping Method ◽  
Vegetation Changes ◽  
Large Classes ◽  
High Rise ◽  
The Third ◽  
Altitudinal Belts ◽  
The One ◽  
Dynamic Series ◽  
River Valleys

Geobotanical mapping of the territory in riverheads Bureya of 4500 sq.km is carried out and the map of a actual vegetation cover of scale 1 : 200 000 is prepared. The legend of the map is presented in the form of the text with three-level hierarchy of classes. At the heart of structure of a legend of the map such regularities of a vegetation cover, as its latitudinal zonality / altitudinal belts, situation in a relief and dynamic series lie. The largest divisions of the legend reflect, first, change of large classes of mesocombinations of vegetation at the level of belts and, secondly, distinction in a boreal - forestry belt between a vegetation cover of tops and slopes of mountains, on the one hand, and the bottoms of river valleys, with another. Divisions of the legend of the second level reflect, first, vegetation changes in the form of high-rise and barrier changes of subbelts, secondly, distinctions of a vegetation cover in different geomorphological conditions (small and average river valleys, northern slopes, etc.). Divisions of the legend of the second level correspond to dynamic series of units of the third level. Essential addition to it are block diagrams of dynamics of a vegetation cover.

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