scholarly journals Geomorphological study of Kleinovitikos stream drainage network (Trikala prefecture - western Thessaly)

2018 ◽  
Vol 40 (3) ◽  
pp. 1365
Author(s):  
G. D. Bathrellos ◽  
H. D. Skilodimou ◽  
G. Livaditis ◽  
E. Verikiou-Papaspiridakou
Keyword(s):  
Quantitative Analysis ◽  
Drainage Density ◽  
Tectonic Activity ◽  
Mountain Range ◽  
Drainage Network ◽  
Drainage Pattern ◽  
Tectonic Structure ◽  
Tectonic Structures ◽  
Secondary Cracks ◽  
Prevailing Direction

The Kleinovitikos stream is a tributary ofPineios River in the Western Thessaly. Its basin drainages parts of mountain range of Southern Pindos as well as the mountain of Koziaka. In this study a quantitative analysis of drainage network was accomplished and the relation of tectonics features with the watershed and the channels of drainage network were investigated. The main channel of the drainage network is of 6th order, while the dominated type of the network is the trellis drainage pattern. The morphological slopes of the basin show various fluctuations. The gentle slopes express erosional landforms while the steep ones represent geological and tectonic structures. It was noted by the quantitative analysis of the drainage network that the geological and tectonic structure of the area affects in its evolution. Moreover, the outcrop of heterogeneous lithological formations in the basin affects the values of drainage density and frequency. The lithology and the secondary cracks involve in the prevailing direction of the watershed. The streams of 1st -3r order are controlled by the younger cracks; the younger cracks as well as the older Alpine cracks have an influence on the streams of 4' and 5' order, and the Alpine tectonic activity affects the stream of 6' order.

scholarly journals Morphotectonic analysis of Kozani Basin (Western Macedonia, Greece)

2017 ◽  
Vol 47 (2) ◽  
pp. 657
Author(s):  
E. Simou ◽  
V. Karagkouni ◽  
G. Papantoniou ◽  
D. Papanikolaou ◽  
P. Nomikou
Keyword(s):  
Large Scale ◽  
Drainage Pattern ◽  
Tectonic Structure ◽  
Tectonic Structures ◽  
River Terraces ◽  
Digital Elevation ◽  
Combined Use ◽  
Digital Modelling ◽  
Elevation Model ◽  
Topographic Relief

Kozani Basin is located in northern-central Greece and constitutes the southernmost of the Plio-Pleistocene basins of western Macedonia. Quantitative and qualitative analysis of morphological slope values, as well as the analysis of the drainage pattern in Kozani Basin confirms that the current topographic relief reflects intense neotectonic activity. Synthetic Morphotectonic Map of the under study area was carried out by means of the combined use of: (a) Digital Elevation Model (DEM), (b) Slope Distribution Map, (c) Morphological Slope Map and (d) Drainage Pattern Map. The composition of the digital modelling in conjunction with the regional geological setting, allows the identification of the main morphological discontinuities and lineaments that result from morphotectonic interpretation. The high morphological slope values indicate well-defined morphotectonic features, which mainly trend NE - SW and, secondarily, NW - SE. Distinct tectonic structures are mostly recognized in the SE margin of Kozani Basin, which is characterized by intense topographic relief. The main large-scale tectonic structure trends NE - SW and corresponds to the major Aliakmonas marginal fault zone that bounds the Kozani basin to the south. On the other hand, the NW margin’s features are indiscernible; thus, the criteria for their recognition are based on the existence of the river terraces, which reflect the tectonic control. The results of our studies are presented on the Morphotectonic Map, which is followed by our 3D model of Kozani Basin.

scholarly journals Γεωμορφολογική και μορφοτεκτονική ανάλυση της λεκάνης απορροής του Μαλακασιώτικου ρέματος (Δυτ. Θεσσαλία-νομός Τρικάλων).

2005 ◽  
Vol 38 ◽  
pp. 123
Author(s):  
Γ. ΜΠΑΘΡΕΛΛΟΣ ◽  
Χ. ΣΚΥΛΟΔΗΜΟΥ ◽  
Γ. ΛΕΙΒΑΔΙΤΗΣ ◽  
Ε. ΒΕΡΥΚΙΟΥ- ΠΑΠΑΣΠΥΡΙΔΑΚΟΥ
Keyword(s):  
Quantitative Analysis ◽  
Drainage Basin ◽  
Northwestern Part ◽  
Drainage Network ◽  
Tectonic Structure ◽  
Neotectonic Activity ◽  
Pinios River ◽  
The Relationship

The Malakasiotiko stream is one of the tributaries of Pinios River in Western Thessaly. The drainage basin of Malakasiotiko stream is located in the northwestern part of the mountainous zone of Trikala Prefecture. In this paper, the drainage network of Malakasiotiko stream has been analyzed. Additionally, the relationship among the tectonism, the growth directions of the watershed lines, and the drainage network. The quantitative analysis of the drainage network has resulted that the geological and tectonic structure of the area affected, and potentially has been affecting its development. The morphotectonic analysis has shown that the watershed lines of the drainage basin and the streams of 1st to 4th order are influenced by alpine structure, whereas the 5th, 6th and the 7th order streams are influenced by neotectonic activity.

scholarly journals Morphometric Analysis to Infer Hydrological Behaviour of Lidder Watershed, Western Himalaya, India

2013 ◽  
Vol 2013 ◽  
pp. 1-14 ◽  
Author(s):  
Farrukh Altaf ◽  
Gowhar Meraj ◽  
Shakil A. Romshoo
Keyword(s):  
Morphometric Analysis ◽  
Western Himalaya ◽  
Drainage Density ◽  
Vital Role ◽  
Integrated Analysis ◽  
Mountain Range ◽  
Drainage Pattern ◽  
Entire Study ◽  
Drainage Patterns ◽  
Drainage Texture

West Lidder River, in the Northwest Greater-Himalayan mountain range, is the major source of irrigation and drinking water supplies for the Kashmir Valley with a population of seven million people. The major source of water for the whole Lidder River is snow and icemelt emanating from its two subcatchments East Lidder and West Lidder. Snowmelt significantly contributes to the evolution of drainage patterns in this area. Quantitative morphometry plays a vital role in routing the snowmelt and other hydrological processes. Morphometric analysis of the West Lidder River catchment was carried out using geospatial technique. The outcome revealed that the entire study area has uniform lithology and is structurally permeable. The high drainage density of all subwatersheds indicate more surface runoff. The morphometric analysis also indicates that the area is more prone to weathering due to very-coarse to coarse drainage texture. All the subwatersheds showed dendritic to subdendritic drainage pattern. An immense control of structure on the drainage in some subwatersheds is indicated by their high bifurcation ratios. Circulatory and elongation ratios show that the subwatersheds have elongated to circular shapes. From the integrated analysis of the morphometric parameters, important hydrologic behaviour of 17 subwatersheds could be inferred.

scholarly journals Hydrologic behaviour of Tapi river catchment using morphometric analysis

2014 ◽  
Vol 6 (2) ◽  
pp. 442-450 ◽  
Author(s):  
Vishal K. Ingle ◽  
A. K. Mishra ◽  
A. Sarangi ◽  
D. K. Singh ◽  
V. K. Seghal
Keyword(s):  
Remote Sensing ◽  
Morphometric Analysis ◽  
Remote Sensing Data ◽  
Drainage Density ◽  
Drainage Network ◽  
Elongation Ratio ◽  
Drainage Pattern ◽  
River Catchment ◽  
Seventh Order ◽  
Drainage Texture

The study area Tapi River catchment covers 63,922.91 Sq.Km comprising of 5 five Sub-catchments: Purna river catchment (18,473.6 sq.km) Upper Tapi catchment (10,530.3 sq. km), Middle Tapi catchment (4,997.3 sq km), Girna river catchment (10,176.9 sq.km) and lower Tapi catchment (19,282.5 sq.km.). The drainage network of 5 Sub-catchments was delineated using remote sensing data. The morphometric analysis of 5 Sub-catchments has been carried out using GIS softwares – ArcMap. The drainage network showed that the terrain exhibits dendritic to sub-dendritic drainage pattern. Stream orders ranged from sixth to seventh order. Drainage density varied between 0.39 and 0.43km/ km2and had very coarse to coarse drainage texture. The relief ratio ranged from 0.003 to 0.007. The mean bifurcation ratio varied from 4.24 to 6.10 and falls under normal basin category. The elongation ratio showed that all catchment elongated pattern. Thus, the remote sensing techniques proved to be a competent tool in morphometric analysis.

Hillslope Form and Process: History 1960− 2000+

2021 ◽  
pp. M58-2021-8
Author(s):  
Mike Kirkby
Keyword(s):  
Land Surface ◽  
Drainage Density ◽  
Cold Climate ◽  
Lower Atmosphere ◽  
Tectonic Activity ◽  
Significant Advance ◽  
Mass Movements ◽  
Solution Processes ◽  
Process Understanding ◽  
Rapid Mass

AbstractThe study of hillslopes has been dominated by the expansion of studies into process rates and mechanisms. Perhaps the greatest volume of work has been on the ‘wash’ processes of soil erosion, but there has also been significant work on the diffusive mass movements of linear and non-linear ‘creep’ that shape the convexity of hilltops, on more rapid mass movements and on solution processes. There has also been fresh work on distinctive processes in coastal, arid and cold-climate environments.Accompanying and integrated with process understanding, and made possible by ubiquitous computational power, modelling has developed from soluble mathematical simplifications to complex simulations that incorporate much of our understanding of process and climate.Particular topics that have seen significant advance include a more complete understanding of drainage density and texture, and a broadening of interest to encompass the ‘critical zone’ that constructively unifies the land surface with the lower atmosphere, the biosphere and the regolith. There has also been a change of focus towards steeplands, dominated by mass movements, supply limited removal and tectonic activity.Most recently, and now incorporated into the concept of the ‘Anthropocene’, human impact is now receiving increasing attention as we acknowledge its accelerating role in changing landscapes and their relationships.

Estimation of streams order according to strahler classification system using GIS. Case study: streams of the Republic of Moldova

2019 ◽  
Author(s):  
Ana Jeleapov ◽  
Keyword(s):  
Water Resources ◽  
Classification System ◽  
River Basins ◽  
Drainage Density ◽  
Drainage Network ◽  
Republic Of Moldova ◽  
Rivers And Streams ◽  
The Republic

The paper contains the results of classification of rivers and streams of the Republic of Moldova according to classic Strahler method. Mentioned method was applied to estimate the hierarchical rank of the stream segments situated in 50 pilot basins using modern GIS techniques and drainage network of the GIS for Water Resources of Moldova. It was estimated that the maximal order of segments is 7 specific for the Raut and Ialpug rivers. Overall, length of 1st order streams forms 50%, while that of 7th order streams - < 1%. Additionally, stream number and frequency as well as drainage density were calculated for pilot river basins.

scholarly journals Morphometric and hydrographie characteristics of torrents of NW Péloponnèse, Greece

2007 ◽  
Vol 40 (4) ◽  
pp. 1578
Author(s):  
M. Pagonas ◽  
N. Kontopoulos
Keyword(s):  
Quantitative Analysis ◽  
Drainage Density ◽  
Main Direction ◽  
Infiltration Capacity ◽  
Drainage Systems ◽  
Total Length ◽  
Fault Systems ◽  
Stream Frequency ◽  
Tectonic Features ◽  
High Infiltration

The study area includes the catchments of Selemnos, Xylokeras and Volinaios torrents, with 456 streams of 277.848 km total length. The pattern is generally dendritic. A quantitative analysis of the drainage systems of the study area was interpreted and then correlated to the fault systems that appear in the area. The main direction of the streams and the tectonic features is WSW-ENE. The drainage density and stream frequency is highly variable as a result of many factors, most important of which is lithology with high infiltration capacity. The number and the length of most streams show divergence of the 1st and 2nd law of Horton since they have dissimilar values from those theoretically expected.

scholarly journals Autogenic versus allogenic controls on the evolution of a coupled fluvial megafan/mountainous catchment system: numerical modelling and comparison with the Lannemezan megafan system (Northern Pyrenees, France)

2016 ◽  
Author(s):  
Margaux Mouchené ◽  
Peter van der Beek ◽  
Sébastien Carretier ◽  
Frédéric Mouthereau
Keyword(s):  
Numerical Modelling ◽  
Temporal Variations ◽  
Tectonic Activity ◽  
Mountain Range ◽  
Stream Network ◽  
Mountainous Catchment ◽  
Isostatic Rebound ◽  
Base Level ◽  
Alluvial Terraces

Abstract. Alluvial megafans are sensitive recorders of landscape evolution, controlled by autogenic processes and allogenic forcing and influenced by the coupled dynamics of the fan with its mountainous catchment. The Lannemezan megafan in the northern Pyrenean foreland was abandoned by its mountainous feeder stream during the Quaternary and subsequently incised, leaving a flight of alluvial terraces along the stream network. We explore the relative roles of autogenic processes and external forcing in the building, abandonment and incision of a foreland megafan using numerical modelling and compare the results with the inferred evolution of the Lannemezan megafan. Autogenic processes are sufficient to explain the building of a megafan and the long-term entrenchment of its feeding river at time and space scales that match the Lannemezan setting. Climate, through temporal variations in precipitation rate, may have played a role in the episodic pattern of incision at a shorter time-scale. In contrast, base-level changes, tectonic activity in the mountain range or tilting of the foreland through flexural isostatic rebound appear unimportant.

Long and short time evolution of deep seated gravitational slope deformation: contribution to knowledge of phenomena for the management of alea in the Alpine mountains

2020 ◽  
Author(s):  
Clément Boivin
Keyword(s):  
Time Evolution ◽  
Slope Deformation ◽  
Tectonic Activity ◽  
High Mountain ◽  
Mountain Range ◽  
Short Term ◽  
Future Evolution ◽  
Short Time ◽  
Short Time Evolution

&lt;p&gt;&quot;LONG AND SHORT TIME EVOLUTION OF DEEP SEATED GRAVITATIONAL SLOPE DEFORMATION: CONTRIBUTION TO KNOWLEDGE OF PHENOMENA FOR THE MANAGEMENT OF ALEA IN THE ALPINE MOUNTAINS&quot;&lt;/p&gt;&lt;p&gt;&amp;#160;&lt;/p&gt;&lt;p&gt;C.Boivin &lt;sup&gt;a&lt;/sup&gt;, J.P. Malet &lt;sup&gt;a&lt;/sup&gt;, C. Bertrand &lt;sup&gt;b&lt;/sup&gt;, F. Chabaux &lt;sup&gt;c&lt;/sup&gt;, J. van der Woerd &lt;sup&gt;a&lt;/sup&gt;, Y. Thiery &lt;sup&gt;d&lt;/sup&gt;, F. Lacquement &lt;sup&gt;d&lt;/sup&gt;&lt;/p&gt;&lt;p&gt;&lt;sup&gt;a &amp;#160;&lt;/sup&gt;Institut de Physique du Globe de Strasbourg &amp;#8211; IPGS/DA - UMR 7516 CNRS-Unistra&lt;/p&gt;&lt;p&gt;&lt;sup&gt;b &lt;/sup&gt;&amp;#160;Laboratoire Chrono-Environnement &amp;#8211; LCE / UMR 6249 CNRS &amp;#8211; UFC&lt;/p&gt;&lt;p&gt;&lt;sup&gt;c&lt;/sup&gt;&amp;#160; Laboratoire d&amp;#8217;Hydrologie et de G&amp;#233;ochimie de Strasbourg &amp;#8211; BISE / UMR 7517 &amp;#8211; Unistra&lt;/p&gt;&lt;p&gt;&lt;sup&gt;d&lt;/sup&gt;&amp;#160; Bureau de Recherches G&amp;#233;ologiques et Mini&amp;#232;res&lt;/p&gt;&lt;p&gt;&amp;#160;&lt;/p&gt;&lt;p&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160; The &lt;strong&gt;Deep Seated Gravitational Slope Deformation (DSGSD)&lt;/strong&gt; are defined like a set of rock mass characterized by a generally slow movement and which can affect all the slopes of a valley or a mountain range (Agliardi and al., 2001, 2009; Panek and Klimes., 2016). The DSGSD is identified in many mountains (ex: Alps, Alaska, Rocky Mountains, Andes&amp;#8230;) and it can affect both isolated low relief and very high mountain ranges (Panek and Klimes., 2016). This deep instability are identified in many case like the origin zone for important landslide like the example of La Clapi&amp;#232;re landslide in the Alpes Maritimes (Bigot-Cormier et al., 2005). The DSGSD represent an important object we must understand to anticipate catastrophic landslides.&lt;/p&gt;&lt;p&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160; Actually, many factors that could be at the origin or controlling the evolution of DSGSD have been identified such as for example the structural heritage, the climate or the tectonic activity (Agliardi 2000; 2009; 2013; Jomard 2006; Sanchez et al., 2009; Zorzi et al., 2013; Panek and Klimes., 2016; Ostermann and Sanders., 2017; Blondeau 2018). The long-term and short-term evolution of DSGSD is still poorly understood but represents an important point to characterize in order to predict future major landslides. A first inventory of DSGSD began to be carried out by certain studies such as Blondeau 2018 or Crosta et al 2013 in the Alps. These same studies have also started to prioritize the factors controlling the evolution of DSGSD.&lt;/p&gt;&lt;p&gt;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160;&amp;#160; It is in order to better understand the short-term (&lt;100 years) and long-term (&gt; 100 years) evolution of the DSGSD of the French Alpine massifs and the link with the occurrence of landslides, that this thesis project is developed. The main objective of this project, will be proposed models of the evolution of DSGSD since the last glaciations. But also to propose key interpretations of the future evolution to locate the areas likely to initiate landslides. Two study areas in the French Alpine massifs were chosen because they represent areas of referencing and localization gaps in DSGSD: Beaufortain and Queyras. They have the advantage of having a low lithological diversity making it possible to simplify the identification of the factors influencing the evolution of DSGSD. A geomorphological analysis on satellite data and on the ground is carried out to locate the DSGSD. Several dating (&lt;sup&gt;14&lt;/sup&gt;C, &lt;sup&gt;10&lt;/sup&gt;Be or &lt;sup&gt;36&lt;/sup&gt;Cl) will be carried out to reconstruct the history of these objects and understand the factors that controlled their evolution.&lt;/p&gt;

Drainage Network Alignment for Namakkal District By Using GIS

2018 ◽  
Vol 7 (3.10) ◽  
pp. 140
Author(s):  
T Subramani ◽  
S Vinothkumar
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Disaster Management ◽  
Land Surface ◽  
Network Density ◽  
Drainage Network ◽  
Land Use Land Cover ◽  
Drainage Pattern ◽  
Right Of Way ◽  
Drainage Rate

Drainage specifies the groundwater conditions and assurance of speed and groundwater stream of a region. Arrangement of drainage as characteristic and technogenic segments on level of drainage basis. Alignment of sewers and water drains must has regular drainage pattern for maintain a strategic distance of surface obstacles. Arrangement of drains is a typical methodology consider elements like geography, land use, land cover and right of way will assume vital part. For the preparation of topographic data used advanced GIS techniques. The following results will obtained using GIS for Namakkal dist such as erosion network, density and depth of erosion network, as well as land surface sloping and further total evaluation as a drainage parameters. Also mentioned the valuable suggestions for better drainage management and drainage rate and disaster management at the time floods.  

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