scholarly journals Inferring potential landslide damming using slope stability, geomorphic constraints and run-out analysis; case study from the NW Himalaya

2020 ◽  
Author(s):  
Vipin Kumar ◽  
Imlirenla Jamir ◽  
Vikram Gupta ◽  
Rajinder K. Bhasin
Keyword(s):  
Material Flow ◽  
Parametric Uncertainty ◽  
Nw Himalaya ◽  
North West ◽  
The Past ◽  
Landslide Volume ◽  
Spatio Temporal ◽  
Satluj Valley ◽  
Landslide Triggering

Abstract. Prediction of potential landslide damming has been a difficult process owing to uncertainties related to landslide volume, resultant dam volume, entrainment, valley configuration, river discharge, material composition, friction, and turbulence associated with the material. In this study instability pattern of landslides, parametric uncertainty, geomorphic indices, post-failure run-out predictions, and spatio-temporal pattern of rainfall and earthquake is explored using Satluj valley, North-West (NW) Himalaya as a case study area to predict the potential landslide damming sites. The study area witnessed landslide damming in the past and incurred $ ~ 30 M loss and 350 lives in the last four decades due to such processes. Forty-four active landslides in the study area that cover a total ~ 4.81 ± 0.05 × 106 m2 area and ~ 34.1 ± 9.2 × 106 m3 volume are evaluated in the study to identify those that may result in potential landslide damming. Out of forty-four, five landslides covering the volume of ~ 26.3 ± 6.7 × 106 m3 are observed to form potential landslide dams. Spatio-temporal varying patterns of rainfall in recent years enhance the possibility of landslide triggering and hence potential damming. These landslides also resulted in 24.8 ± 2.7 m to 39.8 ± 4.0 m high material flow in run-out predictions.

scholarly journals Inferring potential landslide damming using slope stability, geomorphic constraints, and run-out analysis: a case study from the NW Himalaya

2021 ◽  
Vol 9 (2) ◽  
pp. 351-377
Author(s):  
Vipin Kumar ◽  
Imlirenla Jamir ◽  
Vikram Gupta ◽  
Rajinder K. Bhasin
Keyword(s):  
Debris Flows ◽  
River Discharge ◽  
Temporal Variations ◽  
Nw Himalaya ◽  
The Past ◽  
Landslide Volume ◽  
Spatio Temporal ◽  
Satluj Valley ◽  
Landslide Triggering

Abstract. Prediction of potential landslide damming has been a difficult process owing to the uncertainties related to landslide volume, resultant dam volume, entrainment, valley configuration, river discharge, material composition, friction, and turbulence associated with material. In this study, instability patterns of landslides, geomorphic indices, post-failure run-out predictions, and spatio-temporal patterns of rainfall and earthquakes are explored to predict the potential landslide damming sites. The Satluj valley, NW Himalaya, is chosen as a case study area. The study area has witnessed landslide damming in the past and incurred losses of USD ∼30 million and 350 lives in the last 4 decades due to such processes. A total of 44 active landslides that cover a total ∼4.81±0.05×106 m2 area and ∼34.1±9.2×106 m3 volume are evaluated to identify those landslides that may result in potential landslide damming. Out of these 44, a total of 5 landslides covering a total volume of ∼26.3±6.7×106 m3 are noted to form the potential landslide dams. Spatio-temporal variations in the pattern of rainfall in recent years enhanced the possibility of landslide triggering and hence of potential damming. These five landslides also revealed 24.8±2.7 to 39.8±4.0 m high debris flows in the run-out predictions.

scholarly journals Feasibility of the Sar Technique on Quartz Sand of Terraces of NW Himalaya: A Case Study from Devprayag

2008 ◽  
Vol 31 (-1) ◽  
pp. 45-52 ◽  
Author(s):  
Manoj Jaiswal ◽  
Pradeep Srivastava ◽  
Jayant Tripathi ◽  
Rafique Islam
Keyword(s):  
Luminescence Intensity ◽  
Quartz Sand ◽  
Late Quaternary ◽  
Active Tectonics ◽  
Nw Himalaya ◽  
North West ◽  
North East ◽  
The North ◽  
Quartz Grains

Feasibility of the Sar Technique on Quartz Sand of Terraces of NW Himalaya: A Case Study from DevprayagOptically Stimulated Luminescence (OSL) dating technique based on the Single Aliquot Regenerative dose (SAR) protocol is being used increasingly as a means of establishing sediment burial age in the late Quaternary studies. Thermal transfer, low and changing luminescence sensitivity of quartz grains of young sedimentary belts of the New Zealand Alps and the north-east Himalaya poses problems in using SAR protocol. Records of active tectonics and signatures of palaeo-climate are preserved in the Quaternary - Holocene terrace sediments. Therefore, to unfold the history of successive tectonic and palaeo-climate events, robust chronological technique is needed. Palaeoflood deposits in NW Lesser Himalayan region receive quartz from the weathering of various rock types such as quartzite and phyllite in the Alaknanda Basin. A series of tests e.g. dose recovery, preheat plateau, thermal recuperation and change in sensitivity, were performed to check the suitability of quartz grains collected from the terrace sediment of Devprayag of the NW Himalaya, for OSL studies. Inferences were drawn regarding the source of the quartz grains on the basis of the geochemistry and luminescence intensity of the terrace sediment. The study shows that though quartz from the North West Himalaya are low in luminescence intensity but the reproducibility of De value makes the quartz sand suitable for SAR dating technique. Relation between luminescence intensity with CIA values help to predict the provenance of quartz sand. Tests show that the quartz from NW Himalaya is suitable for SAR protocol in OSL.

scholarly journals (Im-)material flow analysis framework implementation on repair and reuse initiatives

2020 ◽  
Vol 108 (5-6) ◽  
pp. 509 ◽  
Author(s):  
Julie Gobert ◽  
Romain Allais
Keyword(s):  
Material Flow ◽  
Flow Analysis ◽  
Material Flow Analysis ◽  
Spatiotemporal Analysis ◽  
Temporal Analysis ◽  
Local Initiatives ◽  
Spatio Temporal ◽  
Stakeholder Network ◽  
Multi Scales

This research aims at understanding better the nature of stakeholders’ resistance to and interest in repair and reuse. In fact, the authors assume that in the future waste management could be less centralized using a network of territorialized initiatives based on repair and reuse activities with high social and environmental values. Such system innovation requires tools and methods to support analysis and facilitate decision-making in multi-stakeholders, multi-scales systems. The framework for spatiotemporal analysis of territorial projects considers a project’s stakeholder network and the way they mobilize resources. These resources may be tangible or intangible, brought by individuals, organizations or even the territory. This communication focuses on the implementation of such an analysis in the community of communes Coeur de Savoie, to understand how local initiatives emerge and on which interactions and resources they are based. This paper proposes feedback on the implementation of the spatio-temporal analysis in one case study (Coeur de Savoie), and provides insights to build new networks promoting reuse and repair.

Monumentalizing landscape: From present perception to the past meaning of Galician megalithism (north-west Iberian Peninsula)

2000 ◽  
Vol 3 (2) ◽  
pp. 188-216 ◽  
Author(s):  
Felipe Criado Boado ◽  
Victoria Villoch Vázquez
Keyword(s):  
Social Space ◽  
Cultural Landscapes ◽  
Research Programme ◽  
Visual Features ◽  
Systematic Analysis ◽  
North West ◽  
The Past ◽  
Neolithic Europe

The study of landscape as social construction implies considering its economic and territorial dimensions, as much as its symbolic ones. A major topic in such kinds of studies is the reconstruction of the ways in which natural and social space was perceived by past societies. We ought to approach the project of building an archaeology of perception. One of the aims of such a research programme would be the evaluation of the effects of natural and artificial landscape features on past human observers. This paper will argue that a possible strategy for studying these dimensions of past landscapes could be based on the systematic analysis of the visual features of prehistoric monuments and in the characterization of the scenic effects and vistas related to them. A detailed analysis of the pattern of location of megalithic monuments and of their visibility and intervisibility allows us to recognize certain regularities which display an intention to take account of monuments by provoking dramatic artificial effects. In such a way, we could approach a phenomenology of prehistoric perception without falling into merely subjective solutions. This study is based on a systematic review of the megalithic monuments from Sierra de Barbanza (north-west Iberia). Its main aims are: (1) the proposal for a theoretical and methodological study of these phenomena, combined with; (2) a case-study to reconstruct those monumental strategies used to shape cultural landscapes in Neolithic Europe, and; (3) the explanation of continuities and changes of these traditions.

Flexible Use of Referents in the Construction of Organizational Identity: A Longitudinal Case Study

2021 ◽  
pp. 105649262110312
Author(s):  
Juha Laurila ◽  
Anni Paalumäki
Keyword(s):  
Organizational Identity ◽  
Rapid Growth ◽  
Time Frame ◽  
Longitudinal Case Study ◽  
Organizational Evolution ◽  
The Past ◽  
Spatio Temporal ◽  
A Minor

Rapid growth, acquisitions, and diversification are examples of major changes that often result in the need to redefine the distinctive characteristics of the organization in question thereafter. However, a sudden identity presentation that significantly differs from the past lacks credibility among both the organizational members and the organization’s external constituents. We contribute to previous research by showing the previously neglected potential that lies in the flexible selection, valuation, and spatio-temporal positioning of referents, and how this enables the construction of an identity that is simultaneously sufficiently congruent with the organization’s present activities and continuous with its previous identity. Moreover, we also reveal how this use of referents changes across the phases of organizational evolution. Empirically, our findings are grounded on an intensive case study of an organization over a 20-year time frame that evolved from a minor spin-off to a prominent and eventually to a major diversified company.

From hard to soft: theory and Neolithic studies in Scotland

2011 ◽  
Vol 33 (1-2) ◽  
pp. 7-19
Author(s):  
Kenneth Brophy
Keyword(s):  
The Past

The Scottish Theoretical Archaeology Group (STAG) conference organisers expressed some doubts about how far theory has changed, and impacted, archaeological establishment and academia in Scotland. In this paper, I will argue that Scotland is certainly not isolated in a theoretical sense, although in the past, Scottish archaeology could be accused of being theoretically conservative, or at least dependent on ideas and models developed elsewhere. A case-study looking at Neolithic studies will be used to illustrate that despite some recent critical historiographies of the study of the period in Scotland, archaeologists in Scotland and those working with Scottish material have been theoretically innovative and in step with wider paradigm changes. The study of the Neolithic in Scotland, it could be argued, has been shaped by theory more than the study of any other period; we are not isolated, but rather part of wider networks of discourse.

THE URBAN MIGRANT FUTURE DESIRE: A STUDY OF REVERSE MIGRATION IN MALAYSIA

2017 ◽  
Vol 3 (2) ◽  
pp. 177
Author(s):  
Nur Huzeima Mohd Hussain ◽  
Hugh Byrd ◽  
Nur Azfahani Ahmad
Keyword(s):  
Oil And Gas ◽  
Industrial Society ◽  
Peak Oil ◽  
Population Mobility ◽  
Reverse Migration ◽  
The Past ◽  
Urban Migrants ◽  
Urban Migrant ◽  
Oil Crisis

Globalisation combined with resources of oil and gas has led to an industrial society in Malaysia.  For the past 30 years, rapid urban growth has shifted from 73% rural to 73% urban population. However, the peak oil crisis and economic issues are threatening the growth of urbanisation and influencing the trends of population mobility. This paper documents the beginnings of a reverse migration (urban-to-rural) in Malaysia.  The method adopted case study that involves questionnaires with the urban migrants to establish the desires, definite intentions and reasons for future migration. Based on this data, it predicts a trend and rate of reverse migration in Malaysia. 

Conservation and Preservation of Nature Reserves, Monuments andSpecial Architectural or Historic Interest in Nigeria: Towards Promotion of Sustainable Cultural Tourism

2015 ◽  
Vol 3 (2) ◽  
pp. 201-218
Author(s):  
Francis Chuma Osefoh
Keyword(s):  
Cultural Tourism ◽  
Nature Reserves ◽  
Communication Link ◽  
Built Environments ◽  
Tourist Attraction ◽  
The Past ◽  
Personal Experiences ◽  
Historical Heritage ◽  
Developed Nations

Some of the renowned world tourism countries have special peculiarities in character in terms of their nature reserves and built environments; that made them stand out for their attractions and visits. These qualities range from conservation and preservation of nature reserves, built environments- epoch architectural supports over the years; historical heritage; political; religious; socio-economic; cultural; and  high technology that enhance culture. The virtues of multi- ethnic groups and multi- cultural nature gave Nigeria a rich cultural heritage, and she is blessed with natural wonders, unique wildlife, and a very favorable climate. More often than not less attention and importance are placed over the nature reserves and built environments to the detriment of tourism in lieu of other sectors. Summarily the country lacks the culture of conservation and preservation of her abundant resources to promote cultural tourism. Case study strategy was applied in the research tours with reports of personal experiences, documentaries and analyses of sites visited in Europe and Nigeria were highlighted with references to their attributes in terms of structures and features that made up the sites as relate to culture and attraction.The task in keeping rural, city landscapes and nature reserves alive stands out as the secret of communication link from the past to present and the future; which tourism developed nations reap as benefits for tourist attraction.

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