Determination of Evolution Stages of Landform: A Comparative Study of Mountain-Plain (Kosi, Bihar) and Plateau-Plain (Kangsabati, WB) Regions of Tropical India

2019 ◽  
Vol 2 (1) ◽  
pp. 30-40
Author(s):  
Avijit Mahala ◽  
Varuni Pathak
Keyword(s):  
Drainage Basin ◽  
Remote Sensing And Gis ◽  
Morphometric Parameters ◽  
Plateau Region ◽  
Important Indicator ◽  
Plain Area ◽  
Shuttle Radar Topographic Mission ◽  
Quantitative Geomorphology ◽  
Arc Gis

The major aim of quantitative geomorphology is to understand the geomorphological stages of evolution of any area. The quantitative revolution and the development of remote sensing and GIS techniques have brought greater attention to this field of analysis. We have used a morphometric analysis, which is an important indicator to understand the geomorphic stages of evolution of any drainage basin, to compare the drainage basin characteristics and related stages of evolution of a mountain-plain and plateau-plain drainage basin in tropical India. The Kosi basin has been selected for the mountain-plain area and Kangsabati basin is the chosen region for the plateau-plain area. Different drainage morphometric parameters and measurements related to linear, areal, relief characteristics have been determined through the use of SRTM (Shuttle Radar Topographic Mission) GeoDEM and ARC GIS 10.1. Area-altitude relationship and hypsometric characteristics have also been accessed to identify the stages of geomorphic evolution. All the relief characteristics indicate Kosi in a young or rejuvenated stage when compared to the mature plateau region of the river of Kangsabati. Morphometric characteristics also indicate that there are high geologic and geomorphological controls on river basin characteristics.

scholarly journals The significance of morphometric analysis to understand the hydrological and morphological characteristics in two different morpho-climatic settings

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Avijit Mahala
Keyword(s):  
Remote Sensing ◽  
River Basin ◽  
Drainage Basin ◽  
Morphological Characteristics ◽  
Remote Sensing And Gis ◽  
Morphometric Parameters ◽  
Mature Stage ◽  
Morphometric Characteristics ◽  
Important Indicator ◽  
Humid Environment

AbstractDrainage morphometric parameters are important indicator to understand the hydrological and morphological characteristics of any region. Present study aims to understand the hydrological and morphological characteristics in two different morpho-climatic settings from drainage basin morphometric parameters. Remote sensing and GIS have been used as efficient tools in delineating and understanding of any drainage basin morphometry. The Kosi River basin of northern India for the mountain–plain tropical environment and Kangsabati River basin of eastern India for the plateau–plain sub-humid environment has been selected for the present study. The geological, geomorphological, hydrological, fluvial characteristics have been stressed out under linear, areal and relief aspects of morphometric parameters. The drainage morphometric parameters have been determined and measured after using the Advanced Space borne Thermal Emission and Reflection Radiometer global DEM (90 m) in ARC GIS 10.1. All the linear morphometric measures of mountain–plain humid Kosi River basin indicate its high flood potentiality, whereas, linear morphometric measures of Kangsabati River basin indicate less flood potentiality and plateau landform characteristics of sub-humid environment. The mean bifurcation ratio also indicates Kosi River has greater flood potentiality than Kangsabati River. Kosi River has drained large amount of water due to its near-circular basin shape than Kangsabati River which has an elongated shape. All the relief characteristics indicate that tropical mountain–plain environment dominated Kosi River basin is in rejuvenated or young stage of geomorphic development, whereas sub-humid plateau–plain dominated Kangsabati River basin is in mature stage of geomorphic development. Most of the morphometric characteristics indicate there are high geologic and geomorphological controls on river basin characteristics. The remote sensing and GIS tool have been successfully implemented throughout the study to understand the morphometric characteristics in two different morpho-climatic settings. Also, the results can be used for plan formation and sustainable management of the study area.

scholarly journals Evaluation of Erosion-Prone Areas in Lamurde River Basin, Nigeria Using Morphometric Prioritization Method

2021 ◽  
pp. 17-31
Author(s):  
E. D. Oruonye ◽  
Y. M. Ahmed
Keyword(s):  
Remote Sensing ◽  
Soil Erosion ◽  
River Basin ◽  
Drainage Basin ◽  
Remote Sensing And Gis ◽  
Parent Material ◽  
Morphometric Parameters ◽  
Drainage Pattern ◽  
Order Stream ◽  
Main Trunk

Remote sensing and GIS techniques have been increasingly used in characterization of drainage basin and prioritization of erosion prone watershed. This study uses remote sensing and GIS to characterise drainage basin morphometry and prioritize soil erosion prone sub watershed in the Lamurde watershed in Taraba state Nigeria. The study adopted standard formulae and methods to compute the morphometric parameters. The Lamurde watershed was delineated to fifteen sub-watersheds with each coded as WS1 to WS15. The result of the findings reveals that Lamurde watershed has a dendritic to sub-dendritic drainage pattern with the smaller streams intersecting the main trunk at acute angles. The findings reveal that Lamurde is a ninth order stream with total area of 1,458.66 km2 and a perimeter of 395.93 km. The basin also has 258,493 total number of streams. The main soil types in the Lamurde basin are fluvisol, lithosol, ferric luvisols and humic nitosols. The surface soil texture of the area is mainly loamy type and particle size classes are fine loamy type. Depth of soil varies from shallow to very deep and having parent material derived from sandstones, mudstones and shales. The findings of the study reveals that watershed: WS7, WS8, WS5, WS11, WS15, WS14, WS2 and WS6 in ascending order are very highly vulnerable to soil erosion. Despite inherent limitation in the use of morphometric parameters to prioritize erosion prone sub watersheds, it is most suitable in the present circumstances because of inadequate information and lack of functional measurement station in the basin, since they have more stable and accessible data on which prioritization of the watersheds can be based on. This study contributes to the problem of dearth of information regarding the susceptibility to erosion in the Lamurde River Basin in Taraba State Nigeria. Based on this findings, these sub watersheds should be given higher priority on any soil conservation intervention measures in the study area. This will go a long way to help address the problem of soil erosion in the area.

scholarly journals Análise Morfométrica da bacia hidrográfica do rio Marapanim, Pará: estudo aplicado ao planejamento ambiental e análise integrada da paisagem

2021 ◽  
pp. 2071-2086
Author(s):  
Aline Soares Lima ◽  
Marcia Aparecida da Silva Pimentel ◽  
Jones Remo Barbosa Vale
Keyword(s):  
Environmental Planning ◽  
Infiltration Rate ◽  
Morphometric Parameters ◽  
Central Theme ◽  
Economic Activities ◽  
Family Farming ◽  
Hydrographic Basin ◽  
Calculation Of Parameters ◽  
Territorial Planning ◽  
Arc Gis

This research has as its central theme the analysis of the morphometric parameters of the hydrographic basin of the Marapanim River, Pará, as a way to subsidize the environmental planning of the area. Studies like these are justified by the regional importance of the economic activities carried out in the municipalities that make up this unit, such as oil palm in its high course and the predominance of family farming and livestock in several sections of the medium and low course. Researches with this purpose are of fundamental importance for the knowledge of the environmental dynamics in the Eastern Amazon. The methodology used was carried out from the literature review, calculation of parameters using Arc Gis and preparation of cartographic material, in addition to the treatment of information with the inference of its applications to environmental planning. The results obtained allowed us to understand that the Marapanim basin has low runoff and a higher infiltration rate, due to its physical characteristics, in addition to medium to low flooding tendencies, which also occur due to the ratio of altitudes that vary from 0 to 70 meters and they are considered of low impact, indicating the need to implement actions aimed at planning related to territorial planning and the use of natural resources.

Sex determination of adult Rock Shags by molecular sexing and morphometric parameters

2003 ◽  
Vol 74 (4) ◽  
pp. 370-375 ◽  
Author(s):  
Flavio Quintana ◽  
Gustavo Somoza ◽  
Marcela Uhart ◽  
Carolina Cassará ◽  
Patricia Gandini ◽  
...  
Keyword(s):  
Sex Determination ◽  
Morphometric Parameters ◽  
Molecular Sexing

Morphometric Parameters and Neotectonics of Kalyani River Basin, Ganga Plain: A Remote Sensing and GIS Approach

2018 ◽  
Vol 91 (6) ◽  
pp. 679-686 ◽  
Author(s):  
Dhirendra Kumar ◽  
Dhruv Sen Singh ◽  
Shailendra Kaumar Prajapati ◽  
Imran Khan ◽  
Pawan Kumar Gautam ◽  
...  
Keyword(s):  
Remote Sensing ◽  
River Basin ◽  
Remote Sensing And Gis ◽  
Morphometric Parameters ◽  
Ganga Plain

scholarly journals Sample Digestion and Combined Preconcentration Methods for the Determination of Ultra-Low Gold Levels in Rocks

Molecules ◽  
2019 ◽  
Vol 24 (9) ◽  
pp. 1778
Author(s):  
Yan-hong Liu ◽  
Bo Wan ◽  
Ding-shuai Xue
Keyword(s):  
Inductively Coupled Plasma ◽  
Direct Determination ◽  
Important Indicator ◽  
Fire Assay ◽  
Sample Digestion ◽  
Inductively Coupled ◽  
Plasma Mass Spectrometry ◽  
Solid Adsorbents ◽  
Exchange Resins

The gold abundance in basic rocks, which normally varies between 0.5 and 5 ppb, has served as a very important indicator in many geoscience studies, including those focused on the planetary differentiation, redistribution of elements during the crustal process, and ore genesis. However, because gold is a monoisotopic element that exhibits a nugget effect, it is very difficult to quantify its ultra-low levels in rocks, which significantly limits our understanding of the origin of gold and its circulation between the Earth crust, mantle, and core. In this work, we summarize various sample digestion and combined preconcentration methods for the determination of gold amounts in rocks. They include fire assay, fire assay combined with Te coprecipitation and instrumental neutron activation analysis (INAA) or laser ablation inductively coupled plasma mass spectrometry, fusion combined with Te coprecipitation and anion exchange resins, dry chlorination, wet acid digestion combined with precipitation, ion exchange resins, solvent extraction, polyurethane foam, extraction chromatography, novel solid adsorbents, and direct determination by INAA. In addition, the faced challenges and future perspectives in this field are discussed.

scholarly journals SEXUAL DIMORPHISM IN PSEUDOPUS APODUS (REPTILIA: SAURIA: ANGUIDAE) FROM THE STEPPE CRIMEA

2018 ◽  
Vol 19 ◽  
pp. 1-21
Author(s):  
Oleg V. Kukushkin ◽  
Igor V. Dovgal
Keyword(s):  
Sexual Dimorphism ◽  
Morphometric Parameters ◽  
The Body ◽  
Body Proportions ◽  
Reliable Determination ◽  
Kerch Peninsula ◽  
The Crimea ◽  
Males And Females ◽  
Almost All

The current paper is focused on sexual dimorphism of a giant glass lizard, or sheltopusik, Pseudopus apodus apodus (Pallas, 1775) from its northernmost populations inhabiting the Crimea. In total, 72 P. apodus individuals (45 males and 27 females) were collected at the Kerch Peninsula during 2013–2017. To estimate the variability, 13 morphometric parameters and 18 indices characterizing the head and body proportions were used. It was found that males and females differed significantly by means of almost all parameters, except the body and tail sizes. Besides that, the differences by 10 ratios characterizing head proportions were revealed as well. However, a reliable determination of the lizard sex using linear sizes and/or ratios values seems to be impossible because of the strong overlap of the variability ranges in both sexes. At the same time, the use of the canonical discriminant analysis by the complex of morphometric parameters and by ratios has shown that the males and females in both datasets are classified correctly basing on the sex with an accuracy approximating 100%. The differences in the allometric growth of males and females partially define the sexual dimorphism of P. apodus on head size and shape. A sex-related differences in the development of at least one pair of parameters (head and snout lengths) were clearly evident, since isometry was established for males, while allometry ‒ for females. Moreover, the systems of correlation between the body and head parts differ in both sexes. Thus, male characterisitics correlate significanly, while the female ones were less toughly connected, and some pairs of parameters did not correlate at all.

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