Significance of Drainage Measures on Landslide Mitigation Measures

2019 ◽  
pp. 97-107
Author(s):  
Minimol Korulla
Keyword(s):  
Mitigation Measures ◽  
Landslide Mitigation

scholarly journals Recharge response and kinematics of an unusual earthflow in Liechtenstein

Landslides ◽  
2021 ◽  
Author(s):  
Jordan Aaron ◽  
Simon Loew ◽  
Markus Forrer
Keyword(s):  
Surface Deformation ◽  
Local Population ◽  
Mitigation Measures ◽  
Climatic Data ◽  
Deformation Features ◽  
Acceleration Period ◽  
Landslide Mitigation ◽  
Landslide Kinematics ◽  
Long Timescales ◽  
The Village

AbstractUnderstanding landslide behavior over medium and long timescales is crucial for predicting landslide hazard and constructing accurate landscape evolution models. The behavior of landslides in soil that undergo periodic displacements, termed earthflows or compound soil slides, is especially difficult to forecast at these timescales. This is because velocities can increase by orders of magnitude over annual to decadal timescales, due to processes such as changing recharge conditions, erosion of the landslide toe, and retrogression of the landslide head. In this paper, we provide a detailed analysis of the Schlucher landslide, an unusual earthflow that is perched above the village of Malbun, Liechtenstein. This landslide had been displacing by 10 to 20 cm/year until 2015, when displacements on the order of 2 m/year occurred from 2016 to 2018. These large displacements damaged landslide mitigation measures, caused numerous surface deformation features, and threatened the local population downstream of the earthflow. This landslide has an unusually long monitoring record, with accurate displacement and climatic data available since 1983. We analyze this nearly 40-year monitoring time series to estimate recharge from snowmelt and rainfall, and its correlation with displacement. We also analyze recently collected, high-resolution surface and subsurface data in order to understand landslide response to recharge, landslide kinematics through time, and catastrophic failure potential. We find that interannual displacements can be explained with variations in recharge; however, periodic surges with recurrence times of tens of years must be explained by other mechanisms. In particular, recharge into the landslide during the recent acceleration (2016 to 2018) was not anomalously high. Instead, we argue that loss of internal strength is responsible for this recent acceleration period, and that this mechanism should be considered when forecasting the surge potential for certain earthflows and soil slides.

scholarly journals KAJIAN BENTUK MITIGASI BENCANA LONGSOR DAN TINGKAT PENERIMAANNYA OLEH MASYARAKAT LOKAL

2017 ◽  
Vol 4 (1) ◽  
pp. 1
Author(s):  
Heru Setiawan
Keyword(s):  
Random Sampling ◽  
Local Community ◽  
Local People ◽  
Mitigation Measures ◽  
Public Acceptance ◽  
Survey Method ◽  
Sampling Techniques ◽  
High Category ◽  
Landslide Mitigation ◽  
Method Approach

Landslide in Tawangmangu Sub-district in 2007 resulted in dozens of houses were damaged and dozens loss of lives. Government with other stakeholders undertakes mitigation measures to landslides to prevent similar incidents in the future. To obtain maximum results, landslide mitigation efforts should be done by involving the local community. This study aims to determine the forms of landslide mitigation and the level of acceptance by the local community. The study was conducted using a survey method approach,with random sampling techniques. Total respondents 93 spread proportionally in five hamlets comprise Plalar,Guyon, Sodong, Salere and Ngledoksari. Data were collected by interview and questionnaire method.The results showed that government with other stakeholders conductedseveral landslide mitigation programs thatcan be grouped into two, namely structural mitigation and non-structural mitigation. In general, the level of local people acceptance to landslide mitigation programs categorized in the medium categorywith percentage 38%,followed by low category with 33% respondents and high category with 29% respondents.Factors affecting the level of public acceptance of landslide mitigation program are age, gender and experience to landslide.Longsor di Kecamatan Tawangmangu pada tahun 2007 mengakibatkan puluhan rumah rusak dan puluhan nyawa melayang. Pemerintah dengan stakeholder yang lain segera melakukan langkah-langkah mitigasi bencana longsor agar kejadian serupa tidak terjadi lagi di kemudian hari. Untuk mendapatkan hasil yang maksimal, usaha mitigasi bencana longsor harus dilakukan dengan melibatkan masyarakat setempat. Penelitian ini bertujuan untuk mengetahui bentuk-bentuk mitigasi longsor dan tingkat penerimaannya oleh masyarakat lokal. Penelitian dilakukan dengan menggunakan pendekatan metode survey, dengan teknik random sampling. Jumlah responden sebanyak 93 yang tersebar secara proporsional di lima dusun yang meliputi Plalar, Guyon, Sodong, Salere dan Ngledoksari. Pengambilan data dilakukan dengan teknik wawancara dan kuesioner. Hasil penelitian menunjukkan, pemerintah dengan stakeholder yang lain melalukan berbagai program mitigasi bencana longsor yang dapat dikelompokkan menjadi dua, yaitu mitigasi struktural dan mitigasi non-struktural. Secara umum, tingkat penerimaan masyarakat terhadap program mitigasi bencana longsor dikategorikan dalam kelas sedang dengan persentase 38%, diikuti oleh kategori rendah dengan 33% responden dan kategori tinggi dengan 29% responden. Faktor yang mempengaruhi tingkat penerimaan masyarakat terhadap program mitigasi longsor adalah umur, jenis kelamin dan pengalaman terhadap longsor.

scholarly journals Proposal of a simplified method for verifying the effectiveness of landslide mitigation measures

2020 ◽  
Vol 57 (5) ◽  
pp. 173-178
Author(s):  
Akihiro KISHIHATA ◽  
Tomoki ENOHARA ◽  
Tomoki SAKIYAMA ◽  
Takaki SAKAGUCHI ◽  
Atsuhiko KINOSHITA
Keyword(s):  
Mitigation Measures ◽  
Simplified Method ◽  
Landslide Mitigation

Costs and Benefits of the Transition to Low-carbon Economyin Russia: Perspectives up to 2050

2014 ◽  
pp. 70-91 ◽  
Author(s):  
I. Bashmakov ◽  
A. Myshak
Keyword(s):  
Emission Reduction ◽  
High Probability ◽  
Ghg Emissions ◽  
Mitigation Measures ◽  
Low Carbon ◽  
Costs And Benefits ◽  
Ghg Emission ◽  
Research Groups ◽  
Emissions Mitigation ◽  
Very High

This paper investigates costs and benefits associated with low-carbon economic development pathways realization to the mid XXI century. 30 scenarios covering practically all “visions of the future” were developed by several research groups based on scenario assumptions agreed upon in advance. It is shown that with a very high probability Russian energy-related GHG emissions will reach the peak before 2050, which will be at least 11% below the 1990 emission level. The height of the peak depends on portfolio of GHG emissions mitigation measures. Efforts to keep 2050 GHG emissions 25-30% below the 1990 level bring no GDP losses. GDP impact of deep GHG emission reduction - by 50% of the 1990 level - varies from plus 4% to minus 9%. Finally, very deep GHG emission reduction - by 80% - may bring GDP losses of over 10%.

Fire Risk Analysis Using Geospatial Approach and Mitigation Measures for South-West Delhi

2018 ◽  
Vol 6 (8) ◽  
pp. 131
Author(s):  
S. K. Tomar ◽  
A. Kaur ◽  
H. K. Dangi ◽  
T. Ghawana ◽  
K. Sarma
Keyword(s):  
Risk Analysis ◽  
Fire Risk ◽  
Population Data ◽  
Fire Service ◽  
Capital City ◽  
Mitigation Measures ◽  
Fire Risk Analysis ◽  
South West ◽  
Geospatial Tools ◽  
Fire Stations

One of the major challenge from unplanned growth in the cities is the fire incidents posing a serious threat to life and property. Delhi, the capital city of India, has seen unplanned growth of colonies resulting in a serious concern for the relevant agencies. This paper investigates the relation between potential causes of fire incidents during 2013-2016 in South-West Delhi Division of Delhi Fire Services as part of risk analysis using the data about fire stations & their jurisdictions, incidents of fire, water reservoirs available, landuse and population data along with the divisional & sub-divisional boundaries of South-West Delhi division under Delhi Fire Service. Statistical and Geospatial tools have been used together to perform the risk analysis. The analysis reveals that difference in actual occupancy and defined landuse as a part of unplanned growth of settlements is found to be the main reason behind the major fire incidents. The suggested mitigation measures focus on legal, policy, physical & technological aspects and highlight the need to bring the systemic changes with changing scenario of demographics and infrastructure to accommodate more aspects of ground reality.

Economic Impact of COVID-19 Pandemic: Who are the Big Sufferers?

2020 ◽  
pp. 320-326
Keyword(s):  
Informal Economy ◽  
World Economy ◽  
Mitigation Measures ◽  
Economic Activities ◽  
Informal Workers ◽  
Indian Economy ◽  
The World ◽  
Daily Wage ◽  
Liberalisation Policy ◽  
The International Monetary Fund

The COVID-19 pandemic identified in Wuhan, China in December 2019, has spread almost to all the countries of the world. The mitigation measures imposed by most of the nations to prevent the spread of COVID-19 have badly hit the global economic activities. As per the latest estimates, the world economy is predicted to decline by 5.2 percent, and world trade is expected to drop by 13-32 percent in 2020 due to the COVID-19 pandemic. In this way it has created havoc in the world economy and the Indian economy is no exception. The International Monetary Fund (IMF) has estimated the Indian GDP growth at 1.9 percent and showed the worst growth performance of India after the liberalisation policy of 1991. According to the World Bank, the Indian economy will contract by 3.2 percent in 2020-21. Daily wage labourers and other informal workers, particularly migrant labourers of economically poor states were the worst hit during the lockdown period and will continue to be adversely affected even after the lockdown was relaxed. The paper suggested multiple measures to support the Indian economic and financial support to all the families of the informal economy workers to tide over this crisis.

Case study and event analysis for mitigation of unpredictable volcanic hazard

Impact ◽  
2020 ◽  
Vol 2020 (3) ◽  
pp. 26-28
Author(s):  
Tsukasa Ohba
Keyword(s):  
At Risk ◽  
Graduate School ◽  
Volcanic Hazard ◽  
Hazard Mitigation ◽  
Scientific Discipline ◽  
Mitigation Measures ◽  
Event Analysis ◽  
Traditional Methods ◽  
Risk Communities

Volcanology is an extremely important scientific discipline. Shedding light on how and why volcanoes erupt, how eruptions can be predicted and their impact on humans and the environment is crucial to public safety, economies and businesses. Understanding volcanoes means eruptions can be anticipated and at-risk communities can be forewarned, enabling them to implement mitigation measures. Professor Tsukasa Ohba is a scientist based at the Graduate School of International Resource Studies, Akita University, Japan, and specialises in volcanology and petrology. Ohba and his team are focusing on volcanic phenomena including: phreatic eruptions (a steam-driven eruption driven by the heat from magma interacting with water); lahar (volcanic mudflow); and monogenetic basalt eruptions (which consist of a group of small monogenetic volcanoes, each of which erupts only once). The researchers are working to understand the mechanisms of these phenomena using Petrology. Petrology is one of the traditional methods in volcanology but has not been applied to disastrous eruptions before. The teams research will contribute to volcanic hazard mitigation.

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