scholarly journals Deposits’ Morphology of the 2018 Hokkaido Iburi-Tobu Earthquake Mass Movements from LiDAR & Aerial Photographs

Author(s):  
Christopher Gomez ◽  
Norifumi Hotta

On the 6th September at 03:08AM local time, the Iburi-Hokkaido Earthquake, only 33 km deep triggers >5,000 co-seismic mass-movements in the hills in a 25 km radius from the epicenter. Although the majority of the mass-movements occurred in complex-geometry valley with the coalescence of deposits, a small sub-set of 59 events deposited on the semi-horizontal val-ley-floor generating separated deposits that were studied in the present contribution. The aim of the present contribution was to contribute to the existing databases of empirical relationships based on planform and vertical dataset, and to define the scalars of those relations that charac-terize the mass-movements of the Iburi-Hokkaido earthquake, with the overarching goal of generating predictors for hazard-mapping. To reach these objectives, the methodology relies on LiDAR data flown in the aftermath of the earthquake as well as aerial photographs. Using Geo-graphical Information Science (GIS) tools planform and vertical parameters were extracted to calculate the power-law relations between areas and volume, between the Fahrböschung and the volume of the deposits, as well as other geometric relationships. Results have shown that the relation S=k〖V_d〗^(2/3) where S is the surface area of a deposit and Vd the volume, and k a scalar that is function of S: k=2.1842 ln⁡(S)-10.167 with a R2 of 0.52, and this relation is improved for the open-slope mass-movements but not the valley-confined ones, that present more varia-bility. The Fahrböschung for events that started as valley-confined mass-movements was Fc = -0.043ln(D) + 0.7082 with a R2 of 0.5m while for open-slope mass-movements, the Fo = -0.046ln(D) + 0.7088 with a R2 of 0.52. These results contribute to the growing co-seismic land-slide database and they can also be the base to understand the role of the counter-slopes and complex topography on the spread and distance travelled by the mass-movement deposits.

2021 ◽  
Vol 03 (02) ◽  
pp. 1-9
Author(s):  
Muhammad Qasim Sodhar ◽  

The movement for the Restoration of Democracy (MRD) was launched against the then military dictatorship in Pakistan in the 1980s. This paper is an attempt to present a historical sketch of the movement and also to discuss the role of the Left in that movement. The study considers those political parties as ‘Left’ which were following Socialist/Communist ideology, based in Sindh, province of Pakistan, specifically Awami Tehrik, a Marxist-Leninist-Moist party, and the Communist Party of Pakistan. This research is based on relevant literature, especially jail diaries and conducting interviews with victims of Communist Case registered by then military regime against communist leaders. The research addresses the events and mass movements launched by the Left in order to strengthen the movement for the restoration of democracy. Moreover, this paper shows how the Left converted a movement for the restoration of democracy into a great mass movement against the then military dictatorship. Key Words: Communist case, democracy, left, military dictatorship, movement for restoration of democracy, Pakistan, Sindh.


2012 ◽  
Vol 20 (1) ◽  
pp. 144-189 ◽  
Author(s):  
Arthur Rosenberg

Abstract Arthur Rosenberg’s remarkable essay, first published in 1934, was probably the most incisive historical analysis of the origins of fascism to emerge from the revolutionary Left in the interwar years. In contrast to the official Comintern line that fascism embodied the power of finance-capital, Rosenberg saw fascism as a descendant of the reactionary mass-movements of the late-nineteenth century. Those movements encompassed a new breed of nationalism that was ultra-patriotic, racist and violently opposed to the Left, and prefigured fascism in all these ways. What was distinctive about the fascists in Italy and Germany was not so much their ideology (a pastiche of motifs that drew on those earlier traditions of the conservative and radical Right) as the use of stormtroopers to wage the struggle against democracy in more decisive and lethal ways. After the broad historical sweep of its first part, the essay looks at the factors that were peculiar to the Italian and German situations respectively, highlighting both the rôle of the existing authorities in encouraging the fascists and the wider class-appeal of the fascist parties themselves, beyond any supposed restriction to the middle-class or ‘petty bourgeoisie’.


Author(s):  
Sandy Budi Wibowo ◽  
Franck Lavigne ◽  
Siddiq Luqman Rifai ◽  
Rani Rahim Suryandari ◽  
Idea Wening Nurani ◽  
...  

Strengthening geospatial technology is very important in order to support disaster mitigation strategy, to manage vulnerable communities and to protectcritical environments. The main challenge in identifying disaster characteristics such as mass movements is the lack of direct observation during the event because it is too dangerous for researchers. Geo-Information Technology as a product of Geographic Information Science can be used as a solution in order to model the characteristics of mass movements. The purpose of this study is focused on identifying landslide processes from point of view ofraster-based model. The method of thisresearch emphasizes dynamic landslide model derived from timeseries raster calculation using MassMov2D algorithm. The geographic database that was built for spatial modeling comes from pedogeomorphological and Remote Sensing survey outputs, especially topographic data, landforms and soil physical properties. The result shows that the relationship between pixels (neighborhood) is determined by the topology of the energy gradient line direction which allowsto transfer the value between each pixel.The movement of landslide material starts from the toe. This decreases the stability of the landslide material in the main body of the landslide and generate progressive erosion.The raster-based model can finally reconstruct and identify the stages of initiation, transport and deposition landslide material.


There have been significant changes in the numbers, patterns, and circumstances of refugees and in the political landscape to support humanitarianism since the publication of the first edition of this collection. Like the first edition, this volume provides a multidisciplinary perspective on refugee health, tracing the health repercussions on individuals and populations from the drivers of forced mass movements of populations from situations of conflict and other disasters through to the process of resettlement in countries other than their countries of origin. Drawing on the expertise of academics, practitioners, and UN frontline experts, the collection covers three main aspects of refugee health: the concepts, definitions, and context from a human rights, humanitarianism, and social determinants of health perspective; the intersection of vulnerabilities across age groups and settings; and the ethical challenges for practitioners and researchers working with forcibly displaced populations seeking to resettle. The collection concludes with an analysis of the role of the media in shaping our perceptions of refugees and the impact on policy and access to care.


2018 ◽  
Vol 7 (9) ◽  
pp. 364 ◽  
Author(s):  
Helena Merschdorf ◽  
Thomas Blaschke

Although place-based investigations into human phenomena have been widely conducted in the social sciences over the last decades, this notion has only recently transgressed into Geographic Information Science (GIScience). Such a place-based GIS comprises research from computational place modeling on one end of the spectrum, to purely theoretical discussions on the other end. Central to all research that is concerned with place-based GIS is the notion of placing the individual at the center of the investigation, in order to assess human-environment relationships. This requires the formalization of place, which poses a number of challenges. The first challenge is unambiguously defining place, to subsequently be able to translate it into binary code, which computers and geographic information systems can handle. This formalization poses the next challenge, due to the inherent vagueness and subjectivity of human data. The last challenge is ensuring the transferability of results, requiring large samples of subjective data. In this paper, we re-examine the meaning of place in GIScience from a 2018 perspective, determine what is special about place, and how place is handled both in GIScience and in neighboring disciplines. We, therefore, adopt the view that space is a purely geographic notion, reflecting the dimensions of height, depth, and width in which all things occur and move, while place reflects the subjective human perception of segments of space based on context and experience. Our main research questions are whether place is or should be a significant (sub)topic in GIScience, whether it can be adequately addressed and handled with established GIScience methods, and, if not, which other disciplines must be considered to sufficiently account for place-based analyses. Our aim is to conflate findings from a vast and dynamic field in an attempt to position place-based GIS within the broader framework of GIScience.


2014 ◽  
Vol 42 (3) ◽  
pp. 499-513 ◽  
Author(s):  
Shri Ram ◽  
John Paul Anbu K.

Purpose – The purpose of this study is to have a closer look at the awareness of referencing utilities among the library professionals in India. In a research environment, referencing and bibliography play an important role in the dissemination of research findings through scholarly writings. Citing references while writing scholarly articles has become more eloquent mainly due to the availability of a range of bibliography management utilities. Currently, there are various types of Bibliography Management Software (BMS) available for the management of the citation, referencing and compiling bibliographies. Librarians have a crucial role to play in helping the faculty, students and research scholars in the process of writing their scholarly articles and theses, especially in the area of referencing. Design/methodology/approach – The study was conducted through an online survey with an aim to assess the perception, awareness and use of BMS by the Library and Information Science (LIS) professionals in India. Findings – In the academic environment, published results of research findings are crucial for the advancement of knowledge. The published research findings are often supported and disputed using the citation of previous studies. There are a number of supporting technologies that are intended to help in procuring needed citations and streamlining them for better research output. The role of the librarian in this endeavor is undisputed. This study shows that there is a need for strengthening the awareness of BMS at the institutional level and also hands-on experience is needed for library professionals to help in the process of research writing and advocate for adopting correct referencing style (citation style) while writing scholarly articles. Practical implications – The increased use of information and communication technology in the process of scholarly writing, especially in the search and retrieval of relevant articles and the availability of electronic journals and books, have resulted in an increased number of research articles being written by research scholars. The downside to this overflow of scholarly and creative writing is the incorrect way of using referencing style in the dissemination of research and the possibilities of malpractice and plagiarism. This study will help in creating awareness of the utility of citation and BMS in content writing, especially among library and information professionals, as they play an important role in facilitating research. Social implications – This study will be beneficial for the LIS professionals in understanding the effectiveness of their services when complemented by the use of technology-powered tools. Creating awareness of the use of BMS in content development in scholarly communication promises to create a flawless scholarly output as library professionals will help researchers in guiding research writings with correct referencing and citation. Originality/value – Use of BMS helps in the development of content in an organized, methodical and scientific way. The role of library and information professionals working with different researchers and scholars in advocating and practicing the use of BMS will go a long way in creating more streamlined content.


TRANSPORTES ◽  
1995 ◽  
Vol 3 (2) ◽  
Author(s):  
Joaquim Jose Guilherme de Aragão

<p>Na presente contribuição, analisa-se a experiência britânica de desregulamentação do transporte publico de passageiro. Inicialmente, retomam-se as discussões que colocaram em questão o padrão comum de envolvimento do Estado nesses serviços, que é de regulamentá-lo fortemente, subsidiá-lo e até de operá-lo. Descrevem-se as medidas colocadas em prática pelo governo britânico para reintroduzir a pura lógica de mercado no setor, assim como as justificativas por ele declaradas. Em seguida, são resumidas as avaliações por parte de diversas fontes, da dita experiência, sendo esse resumo sistematizado nos submodos transporte urbano, transporte rodoviário interurbano e transporte rural. Após esse relato, retoma-se o confronto de discussões, desta vez das realizadas depois da implantação do processo. Por fim, a luz dessas análises e a título de conclusão, algumas indagações sobre a estrutura econômica e institucional do setor de transporte publico são colocadas pelo autor.</p><p><strong>Abstract:</strong></p><p>In the present contribution, the British public passenger transport deregulation experience is analyzed. Initially, the discussions which put into question the common role of State with respect to these services (strong regulation, subsidies and even direct operation by government) are resumed. The measures taken by the British Government in order to reintroduce market orientation into the sector and also their justifications are then described. In a further section, the evaluations made by several studies on deregulation experience are systemized with respect to urban, intercity rural transport. After this description, the opinions and positions put after the ion of the deregulation experiation are resumed. Finally and conclusively, the author puts some questions on the economic and institutional structure of the public transport sector.</p>


2012 ◽  
Vol 50 (1) ◽  
pp. 225
Author(s):  
A. D. Hathaway

In The Real Dope: Social, Legal, and Historical Perspectives on the Regulation of Drugs in Canada, Edgar-Andre? Montigny brings together a broad range of recent writing on a wide variety of drugs. The collection is well worth reading for the insights it provides into Canada’s socio-legal historical experience of the regulation of different psychoactive substances and for its documentation of the wealth of expertise coalescing in this area of research. This subject matter has inspired much critical analysis and scholarly debate about the role of academics in informing policy discussions about drug use and support for liberal drug policy reform. The present contribution is unique in its broad coverage of different “types” of drugs in different eras, and in its accessible, coherent presentation of historical material. Each chapter stands both alone and as an asset to its larger contemporary relevance, as interpreted by authors drawn from a variety of disciplinary backgrounds.


2015 ◽  
Vol 8 (1) ◽  
pp. 056
Author(s):  
Mariana Madruga De Brito

Movimentos de massa são fenômenos naturais caracterizados pelo deslocamento de solo e rocha vertente abaixo. Quando esses processos ocorrem em áreas urbanizadas, podem causar perdas econômicas, impactos sociais e, em casos extremos, perda de vidas humanas. Na tentativa de mitigar tais desastres, torna-se necessário mapear os locais já afetados pelos mesmos, uma vez que escorregamentos recentes podem sugerir futuros padrões de instabilidade. Nesse sentido, este trabalho teve por objetivo mapear as cicatrizes de movimentos de massa em um segmento da Borda Oriental da Bacia do Paraná, por meio do processamento de uma imagem Landsat 5-TM, órbita/ponto 220/80, data de passagem 28/08/2009. Para facilitar a discriminação destas feições, elaboraram-se composições coloridas RGB e processamentos tais como Ampliação Linear de Contraste (ALC), razão entre bandas e Análise por Componentes Principais (PCA). A fim de validar o inventário elaborado, utilizaram-se imagens de alta resolução disponíveis no software Google Earth®. Ao total, foram identificadas 63 cicatrizes com a imagem Landsat 5-TM e 121 cicatrizes com as imagens do Google Earth®. Os principais tipos de movimentos de massa mapeados são escorregamentos translacionais rasos e corrida de detritos. A identificação das cicatrizes foi possível devido às diferenças de tonalidade, cor, matiz e textura nas imagens orbitais após a ocorrência desses processos. Os resultados obtidos representam um passo inicial para a análise da suscetibilidade da área.     A B S T R A C T Mass movements are natural phenomena characterized by the downslope movement of soil and rock. When these processes occur in urban areas they can cause economic losses, social impacts and, in extreme cases, loss of human lives. In an attempt to mitigate such disasters, it is necessary to map sites affected by them, since recent landslides may suggest future patterns of instability. In this sense, this study aimed to map the mass movement scars in a segment of the Eastern Edge of the Paraná Basin, through the processing of a Landsat 5-TM image, 220/80 orbit-point and date of passage 08/28/2009. To facilitate the recognition of these features, RGB color compositions and image processing techniques such as contrast stretching, ratio between bands and Principal Component Analysis (PCA) were applied. In order to validate the inventory, high-resolution images available at Google Earth® software were used. Totally, 63 scars were identified with the Landsat 5-TM image and 121 with Google Earth® images. The main types of mass movements mapped are translational landslides and debris flows. The identification of the scars was possible due to differences in tone, color, hue and texture at the orbital images after the occurrence of such processes. Results obtained represent an initial step towards the susceptibility analysis of the area. Keywords: Landslide inventory; Digital image processing; Satellite images; Geoprocessing.  


2020 ◽  
Vol 60 (1) ◽  
Author(s):  
Kristina Ivančič ◽  
Jernej Jež ◽  
Blaž Milanič ◽  
Špela Kumelj ◽  
Andrej Šmuc

In Slovenia, mass movements are not only a threat to the population, but also a major environmental and social science challenge. Lithologically heterogeneous areas have been found to be problematic, and the Miocene Slovenj Gradec basin (in northeast Slovenia) is one such area. For this area, we developed landslide and rockfall susceptibility maps based on detailed geological research combined with statistical modeling schemes. Crucial factors include lithological composition, land use, geological structural elements, slope curvature, aspect and inclination, and bed dipping. The approach taken in the development of mass movement susceptibility maps presented here is transferable to other areas defined by heterogeneous lithology. Such maps could prove useful spatial planning, forestry, environmental protection, landscape architecture, and other fields.


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