Disaster Trends Research Articles

THE KEY TECHNOLOGIES OF GEOLOGICAL DISASTER DYNAMIC MONITORING BASED ON NAP-OF-THE-OBJECT PHOTOGRAMMETRY

Abstract. Dynamic monitoring of geological hazards is an important project. Photogrammetry plays an important role in geological hazard monitoring, because of its advantages of convenient data processing, low cost, non-contact, direct texture information and intricate 3-D real scene model. For the traditional photogrammetry can not meet the needs of dynamic monitoring, based on multi-period nap-of-the-object photogrammetry, this paper obtains high-precision images and produces a refined 3D real scene model to carry out the dynamic monitoring of geological disasters. A deformation detection method of geological hazards based on the comparison of three-dimensional model differences is proposed to locate the position with serious deformation. Then, based on the severely deformed area, the multi-period generalized orthophotos are produced, and the image feature matching is used to find the homonymous points between the generalized orthophotos. The two-dimensional and three-dimensional coordinate forward and inverse transformation of the generalized orthophotos are used to calculate the size and direction of the deformation displacement, analyze the deformation trend of geological disasters, and finally realize accurate monitoring of the deformation trend of geological disasters. The results show that the deformation area detection method proposed in this paper is simple and effective, which can quickly find the deformation position. The deformation trend prediction based on multi-period generalized orthophotos is feasible, and the displacement with deformation of 3CM can be accurately pointed out.

IMPLEMENTATION OF THE SUKATENDEL VILLAGE REGULATION POLICY NO. 01 OF 2019 CONCERNING THE DISASTER RESILIENT VILLAGE PROGRAM

Indonesia is an archipelagic country that is vulnerable to natural and non-natural disasters. The trend of natural disasters that occur in Indonesia itself tends to increase from year to year as well as what happened in Karo Regency. According to BPS data from 2015-2020 there was an increase in natural disasters, especially those caused by the eruption of Mount Sinabung.The problem that occurs is that Sukatendel Village is located in Tiganderket District, Karo Regency which has an altitude of 500 meters above sea level. This certainly increases the risk of disaster. The purpose of this study was to determine the effectiveness of implementing the Sukatendel Village Regulation No. 01 of 2019 regarding the Disaster Resilient Village program. With qualitative research methods. The results showed thatImplementation of Village Regulation No. 1 of 2018 concerning the disaster-resilient village program which includes 4 (four) factors, namely: The communication factor has not been carried out properly, due to the irregularity of socialization activities and the limitations of information communication tools to the surrounding community. The human resource factor is adequate in the implementation of DESTANA with the establishment of a village management and DRR Forum, but has limited budget and facilities in disaster management. The disposition factor or commitment owned by the implementor is good in carrying out its responsibilities as the implementer of the policy. The bureaucratic structure factor in the implementation of DESTANA has been directed and clear with the creation of a disaster management mechanism, the division and role of each team, but this is of course with the approval of the Karo Regency Government.

Design of temporary, conditional, general and highly influential buildings for tropical cyclones and severe local storms

This paper first discusses the causes of damage to buildings and structures due to various types of winds including daily winds and some extremely strong winds. Regarding devastating wind-induced disasters due to tropical cyclones (TC), the importance of combined effects of wind and water hazards is emphasized. It also points out human errors hidden in damage scenarios, especially for large buildings. The importance of cladding/component design, the significance of debris impacts, and the effects of sudden changes in internal pressures are also emphasized. The design principles for buildings and structures are also examined, and the crucial differences among building performances against TCs and severe local storms such as tornadoes and downbursts are discussed. Design load levels for temporary buildings including scaffoldings and construction offices and for conditional buildings and structures including cranes, movable roofs and so on are also discussed. Next, design issues of tornado effects on highly important and highly influential buildings such as nuclear power plants are discussed. Finally, to cope with the future increasing trend of wind-related disasters, the importance of decarbonization and full-scale storm simulators are emphasized.

Trends in rainfall and hydrometeorological disasters in new capital city of Indonesia from long-term satellite-based precipitation products

The Indonesian government has decided to move its capital city from Jakarta in Java to Nusantara Capital City (IKN) on Borneo island. This study investigates the trend and variability of rainfall in the IKN and two buffer cities and its relation to hydrometeorological disasters. We analyze 20 years of Integrated Multi-Satellite Retrievals for GPM (IMERG) version 6 data and hydrometeorological disaster information from the National Agency for Disaster Countermeasure. The annual rainfall, the extreme rain index of R95p (number of very wet days), and R99p (number of very extremely wet days) show a slightly decreasing trend. However, the index of consecutive wet days (CWD) increases, resembling the rising number of floods and landslides. Rainfall shows robust seasonal and diurnal variations. Peak rainfall occurs in November–December and March–April, while the driest period is observed during August–October. Dry months associated with El-Nino, can cause severe dry conditions and increase the potential for catastrophic forest fires. The peak precipitation amount and frequency were observed in the early morning and the second peak in the afternoon. Mainland areas tend to have a peak occurring later than those on the coast and ocean. The results of this study can be additional information in formulating a strategic plan to anticipate future hydrometeorological disasters in IKN.

Spatial and Temporal Analysis of Extreme Climate Events over Northeast China

In recent years, the frequent occurrence of extreme climate disasters has seriously affected agriculture in Northeast China. Based on precipitation data derived from 83 geographical stations in the study area for 60 years (1960–2019), we chose the reliable statistical methods of the Mann–Kendall test, Sen’s slope, and the Standardized Precipitation Index, and regarded drought and flood as a whole in this paper, to identify the temporal and spatial variation characteristics of precipitation and extreme climate events in Northeast China. The results show that an increasing trend of disasters was detected at the 95% confidence level (Z = 2.3). According to the timescale analysis, abrupt climate changes started in 2006. Temporal and spatial distribution of extreme climate disasters, mainly drought and flood disasters, showed a significant upward trend from 2006 to 2019. According to the spatial analysis, the precipitation in Northeast China decreased from south to north and fluctuated less from east to west. Moreover, stations with extreme climate trends (trend of climatic anomaly with confidence level > 90%) followed the same spatial pattern as those with a high frequency of extreme climate disasters (more than 17.87 times/decade). The severity and frequency of extreme climate have increasingly threatened Northeast China in the past decade. In particular, the Northeast Plain experienced the most severe and extreme climate events that seriously threatened the study area in 2007, 2009, 2010, and 2019. Our results highlight the urgent need for the development of monitoring and early warning of droughts and flood disasters to reduce economic losses.

Community Centered Mitigation Based on Science Literature to Reduce The Risk of Disaster in Indonesia

Disasters are a potential threat to the lives of the Indonesian people. The trend of disasters in Indonesia is increasing regarding the number, type, impact, and complexity of the problem. All of that burdens individuals, communities, nations, and countries. Reducing this burden remains a common challenge. A simple activity to reduce the burden is to carry out risk reduction and disaster mitigation activities involving various stakeholders. Community-based mitigation activities utilizing science literacy can be an alternative model of solutions to overcome this.

Declining vulnerability but rising impacts: the trends of climatic disasters in Nepal

The impacts of climatic disasters have been rising globally. Several studies argue that this upward trend is due to rapid growth in the population and wealth exposed to disasters. Others argue that rising extreme weather events due to anthropogenic climate change are responsible for the increase. Hence, the causes of the increase in disaster impacts remain elusive. Disaster impacts relative to income are higher in low-income countries, but existing studies are mostly from developed countries or at the cross-country level. Here we assess the spatiotemporal trends of climatic disaster impacts and vulnerability and their attribution to climatic and socioeconomic factors at the subnational scale in a low-income country, using Nepal as a case study. Loss of life is the most extreme consequence of disasters. Therefore, we employed human mortality as a measure of disaster impacts, and mortality normalized by exposed population as a measure of human vulnerability. We found that climatic disaster frequency and mortality increased in Nepal from 1992 to 2021. However, vulnerability decreased, most likely due to economic growth and progress in disaster risk reduction and climate change adaptation. Disaster mortality is positively correlated with disaster frequency and negatively correlated with per capita income but is not correlated with the exposed population. Hence, population growth may not have caused the rise in disaster mortality in Nepal. The strong rise in disaster incidence, potentially due to climate change, has overcome the effect of decreasing vulnerability and caused the rise in disaster mortality.

The role of military medicine and the significance of training military medicine.

Military forces are exposed to various kinds of special diseases for their occupational condition. As an academic discipline, Military Medicine serves to meet the healthcare needs of the forces. Professional Military Medicine has started working nearly from modern wars time in the 20th century. Regarding the growing global trends of war, terrorism, and natural disasters as well as modern changes in war strategies, weapons, and their consequences, Military Medicine is undergoing an evolution process. This review study was conducted to investigate the role and place of Military Medicine and the related approaches, medical curriculum, and the priority of developing specialized academic subfields of Military Medicine in Iran. Military physicians are in great need of knowledge, attitude, and skills. Today, Military Medicine includes a specialized approach, mobility, resuscitation, and stabilization of the injured as well as pre-hospital practices. Developing a specialized field for military emergency medicine with a special curriculum has been a priority in Iran that can meet the requirements of military forces for successful missions. Medical medicine departments of Military Medicine schools require new educational plans and curricula with specialized Military Medicine approaches and developments based on emerging needs. The most appropriate and the best option for military missions and emergencies in Iran is the physicians educated and specialized in Military Medicine.

Research on the Construction of Typhoon Disaster Chain Based on Chinese Web Corpus

China is one of the countries most affected by typhoon disasters. It is of great significance to study the mechanism of typhoon disasters and construct a typhoon disaster chain for emergency management and disaster reduction. The evolution process of typhoon disaster based on expert knowledge and historical disaster data has been summarized in previous studies, which relied too much on artificial experience while less in-depth consideration was given to the disaster exposure, the social environment, as well as the spatio-temporal factors. Hence, problems, such as incomplete content and inconsistent expression of typhoon disaster knowledge, have arisen. With the development of computer technology, massive Web corpus with numerous Web news and various improvised content on the social media platform, and ontology that enables consistent expression new light has been shed on the knowledge discovery of typhoon disaster. With the Chinese Web corpus as its source, this research proposes a method to construct a typhoon disaster chain so as to obtain disaster information more efficiently, explore the spatio-temporal trends of disasters and their impact on human society, and then comprehensively comprehend the process of typhoon disaster. First, a quintuple structure (Concept, Property, Relationship, Rule and Instance) is used to design the Typhoon Disaster Chain Ontology Model (TDCOM) which contains the elements involved in a typhoon disaster. Then, the information extraction process, regarded as a sequence labeling task in the present study, is combined with the BERT model so as to extract typhoon event-elements from the customized corpus. Finally, taking Typhoon Mangkhut as an example, the typical typhoon disaster chain is constructed by data fusion and structured expression. The results show that the methods presented in this research can provide scientific support for analyzing the evolution process of typhoon disasters and their impact on human society.

Analysis of Progressive Failure between Soil and Structure Interface in the Direct Shear Test Using a New Method

Abstract In recent years, the trend of landslide disasters increases year by year with the rapid development of economic construction. The landslide caused massive casualties and economic losses. In this paper, a new kind of stress-displacement sensor, which can monitor the stress and displacement of local points on the contact surface, is developed. A large indoor direct shear test of the contact surface between red clay in Chongqing and structure is carried out by using this sensor. Furthermore, stress and deformation response evolution characteristics of the contact surface under shear loads and different soil compactness and normal stress are discussed. The shear failure of the contact surface between soil and structure is characterized by progressive failure; the normal stress of the contact surface and the compaction degree of the soil has a significant influence on the progressive failure. The test results indicate that the peak stress along the shear direction of the contact surfaces shows obvious inhomogeneity features. Considering the progressive failure characteristics of soil, the shear strength parameters obtained by the traditional large direct shear test underestimated the soil shear strength before the peak shear stress of shear curves. Then, in the post-peak shear stress stage (post-failure zone), the residual strength obtained by large direct shear tests represents the real residual strength of the soil.

Disaster assessment for the “Belt and Road” region based on SDG landmarks

ABSTRACT In this study, based on the EM-DAT (The Emergency Events Database) database, disaster assessment for the “Belt and Road” region was carried out in relation to the indicator of the Sustainable Development Goals (SDGs) agenda launched in 2015. A new method for diagnosing trends in the indicators based on the Theil-Sen median method is proposed. In addition, using the data available in the EM-DAT, an overview of disaster records is used to quantify disasters for a total of 73 countries. The disaster trends for the period 2015‒2019 were found to demonstrate the following. (1) As a result of geological and climate conditions, Asia and Africa are high-risk disaster areas and disasters have caused considerable economic losses and affected the populations in developing and underdeveloped countries in these regions. (2) The clear positive value of found for China reflects the country’s encouraging achievements in disaster prevention and mitigation. (3) The value of was observed to be increasing in South Asia, northwest Africa and South Africa, with the increase in India and Mauritania being the most serious. The new method proposed in this paper allows the real trend in the indicator in various countries to be derived and provides critical intelligence support for international disaster risk reduction plans and sustainable development goals.

Spatial–temporal characteristics of drought and flood disasters in Yunnan Province on the margin of the Tibetan Plateau over the past 620 years

AbstractDrought and flood disasters (DFD) are the most important natural disasters in the Indian monsoon (IM) region, and often occur in the same year. This makes it difficult to accurately study the characteristics of DFD using the evaluation grades of disasters. Based on the statistical analysis of historical drought and flood data in Yunnan Province, combined with anomaly accumulation values, sliding t tests and wavelet analyses, the spatial–temporal characteristics and the possible dynamic mechanisms of the DFD in Yunnan Province are analysed during the past 620 years. The results show that the frequency of flood disasters in Yunnan Province was slightly higher than that of drought disasters, and disaster frequency has gradually increased over the past 620 years, especially after 1750 AD. The variations characteristics of the drought and flood index (DFI) have 2 ~ 10 year quasi‐periodic signal in the east and west regions of the Yunling‐Ailao Mountains, and they are consistent with the environmental records of tree rings and lacustrine deposits in the region. The DFD of the IM region may be influenced mainly by solar activity and El Niño‐Southern Oscillation (ENSO) on a century scale, and frequent human activities enhance the impact of DFD, especially in the east region of the Yunling‐Ailao Mountains. The results provide a method to further understand the mechanism and trends of drought and flood disasters in the monsoon region on a century scale.

Challenges of Emergency Management in Nigeria: A Case Study of Federal Capital Territory (FCT) (FEMA)

The study examined the challenges of emergency management and response in Nigeria; a case study of FCT Emergency Management Agency (FEMA), FCT Nigeria. The study assesses the nature and trend of disasters and emergency situations prevalent in the Federal Capital Territory (FCT), the effectiveness of FEMA’s response to emergency situations in the FCT, and highlights the challenges of the Federal Environmental Management Agency of FCT. Both primary and secondary methods of data collection were used. Descriptive statistics were used to analyze the data. The findings of the study revealed that road crashes and flooding are the highest emergency situations recorded in the area. The trend shows that in 2014, 40 emergency situations were recorded, 26 in 2016, and 49 the highest in 2019. In terms of the effectiveness of FEMA’s response to emergencies, the study findings revealed that from 2014 to 2019, 215 emergency situations were recorded, 740 lives were saved as a result of FEMA’s response time of 3 to 15 minutes. The study also revealed that FCT FEMA synergies with other emergency stakeholders in emergency management and response. Training of staffs was periodically carried out to improve productivity and level of alertness of the staff. Some of the humanitarian services of FCT FEMA include the distribution of relief materials and school enrolment for internally displaced persons (IDPs). These notwithstanding, the activities of the agency have been constrained by inadequate funding, poor logistics, wrong address from callers, lack of proper maintenance of infrastructure and equipment, improper vulnerability assessment, and inadequate and ineffective legal and regulatory framework. Based on the findings, the study recommends adequate funding, use of other means of transportation, public enlightenment, and increase synergies among emergency management stakeholders.

A Study on the Improvement of the Disaster Relief Donation System

This study discussed the need for restructuring the disaster relief fundraising system in South Korea. To that end, it examined the management system and characteristics of disaster relief donations. In addition, the study drew implications by comparing domestic and overseas disaster relief donation systems and analyzing important precedents related to disaster relief donations. The analysis revealed that the domestic disaster relief fundraising system is based on the classification of disasters into natural and social disasters, which the study contended is not suitable in the current scenario given the recent trend of large and complex disasters. Overseas disaster donation systems were not found to be based on such a dual classification. Moreover, it was confirmed that various forms of support were being provided to revitalize donations overseas. It may also be unconstitutional for donations to be based on such a classification because the system violates the basic spirit of the Constitution by limiting the right to freedom and pursuit of happiness of donors and charitable organizations participating in disaster relief funding. Historical changes in the donation law have changed the orientation from regulation to promotion of a donation system with a mature donation culture. In this context, the following proposals were made to improve the domestic disaster relief donation system. First, the study recommended the unification of the donation system for natural and social disasters in light of the occurrence of multiple disasters. Second, it advocated a transition away from the current system of monopolistic fund management in order to revitalize various disaster relief fundraising institutions.

Disability-Adjusted Life Years (DALYs) Due to Ischemic Heart Disease (IHD) Associated with Natural Disasters: A Worldwide Population-Based Ecological Study.

Background:Recent studies have reported an association between natural disasters of various kinds and ischemic heart disease (IHD). We investigated the association between Disability-adjusted life years (DALYs) due to IHD and natural disasters and aimed to assess DALYs as a quantification of the burden of IHD related to natural disasters at the global level.Methods:Country-specific data of natural disaster impacts DALYs due to IHD and socioeconomic variables were obtained from open sources over the period of 1990–2013 and 2014–2017. A population-based trend ecological design was conducted to estimate the association between trends in DALYs and natural disasters (occurrence, casualties and total damage), adjusting for socioeconomic variables.Results:Most countries have experienced increases in natural disaster occurrences and decreases in DALYs during this study period. The unadjusted correlation analysis demonstrated a positive and significant correlation between DALYs and natural disasters for females and for both sexes (R = 0.163 and 0.146, p = 0.024 and 0.043), and a marginally significant correlation for males (R = 0.128, p = 0.076). After adjusting for socioeconomic variables, multiple linear regression demonstrated independent associations between the occurrence and DALYs due to IHD for males, females and both sexes (standardized coefficients = 0.192, 0.23 and 0.187, p = 0.016, 0.004 and 0.022).Conclusions:A weak but significantly positive association between natural disaster and IHD was confirmed and quantified at the global level by this DALY metric analysis. Adaptation strategies for natural disaster responses and IHD disease burden reduction need to be developed.

Flood disaster and national security: A criminologist`s exploration of Lagos metropolis, Nigeria

The global disaster trends are worrisome to all stakeholders. The ugly consequences of flood disasters include loss of lives and property, disruption of economic activities, creating insecurity like theft, robbery, and many more. The consequence also puts pressure on the government to spend limited resources on rehabilitation and compensation of flood victims. Hence, this paper addresses flood-disaster preparedness and flood control in Nigeria through the criminological exploration of Lagos metropolis. The study applied exploratory and descriptive methods and relied on data generated through content analysis of books, journals, and online materials. This paper adopted the social control theory by Hirsch and broken window theory by George Kelly. The finding showed that people lack preparedness for the disaster events; they break urban master plans and structures to obstruct to flood. The anti-social attitude like indiscriminate dumping of solid wastes into drainages and carnal and weak enforcement of environmental laws. Also, undue cutting down of trees, lack of environmental policy and lack of political will to implement the existing ones, poor attitude to social and environmental policies are among the factors that are responsible for poor preparedness for flood disaster in Lagos Metropolis. The paper recommends effective public enlightenment, public advocacy on environmental safety and health security, rigorous enforcement of environmental laws, and an urban renewal scheme. This paper will benefit the ministries of environment and physical planning, the state, and the federal emergency agencies, non-governmental agencies, and researchers in the security and emergency studies.

STAKEHOLDERS INVOLVEMENT IN MITIGATING DISASTER PREVALANCE FOR EFFECTIVE DISASTER MANAGEMENT

A literature search showed that studies on the categorization and roles of stakeholders engaged in disaster management are still in dearth. This could not be unrelated to the global trend of natural and man-made disasters. The objective of this research is therefore to examine the role played by stakeholders in combating the incidence of disasters in our modern culture. An audit of suitable writing is the method utilized to collect fitting data. The investigation found diverse strategies of categorizing calamity administration partners in past investigate. This investigates, after investigating current writing, distinguished critical partners, counting but not limited to government and its parastatals, NGOs, benefactors, the private segment, media, the scholarly world, territorial collaboration, community / citizen and the prompt environment. Based on the concept of partners, the acceptance that much might be fulfilled within the locale of calamity administration in case all partners are completely recognized, well-coordinated and regarded. In conclusion, this inquires about offers supportive information on the part of partners in relieving the rate of catastrophes to ensure productive administration of fiascos.

Disasters: Spatio-Temporal Distribution of Dhankuta District, Nepal

This paper attempts to analyze the temporal and spatial distribution of disaster in Dhanktua district, Nepal. It provides information regarding when and where the disasters have mostly occurred in Dhankuta. Disaster can occur at any time at anywhere although every disaster has a temporal and spatial dimension which helps to predict the future events In this context, this paper provides the history and trend of disasters in Dhankuta. This paper is based on mostly secondary data extracted from the Ministry of Home Affairs, Disaster Risk Reduction (DRR) Portal. To analyze this, mostly descriptive methods has been applied where the quantitative method also applied for the reflection of disaster data. Fire, landslide, heavy rainfall and thunderbolt were the major disasters that frequently occurred in this district during 2017-2019. It is found that fire incidents were frequently occurred in the month of March, the landslide in July, heavy rainfall in July and thunderbolt in April. It is interesting that, those years where the incidents of fire were higher the incidents of the landslide were low and vice versa and there is a positive relationship between landslide and heavy rainfall. This study will important to local levels and relevant agencies for disaster preparedness because the impact of the disaster is based on the level of preparedness. This analysis is based on limited data which covered 10 March 2017 to 31 December 2019. This study provides a new perspective in the field of disaster where temporal and spatial dimensions are considered.

A Review on Main Challenges of Disaster Relief Supply Chain to Reduce Casualties in Case of Natural Disasters

Iran is among the ten disaster-prone countries and, in terms of earthquake, it has been ranked the sixth in the world. Although the damages caused by the disasters are not irreversible from different aspects, they could be reduced to minimum by choosing appropriate preventive actions as well as preparedness plans to counteract the impacts of these incidents. According to the increasing trend of disasters and crises which destroy businesses and communities, considering relief supply chain under crisis situations (HDRSC), in the wide field of supply chain management (SCM), is necessary and vital. Even though considerable volume of research have been done in the field of supply chain and with the focus on the disaster relief, few studies have addressed its complex features and properties. So, this paper concentrates on the activities such as demand determination and supply chain coordination. This research provides the supply chain managers who are faced with similar problems in other environments with valuable insights.

Recent trends of climate disasters: Lessons we can learn

Abstract Dr Chadia Wannous has more than twenty-five years of experience in program management, coordination, and research with particular focus on emergency preparedness and response and risk reduction of health threats. She is currently Coordinator and Senior Advisor at the Towards a Safer World Network for Pandemic Preparedness (TASW). For the past decade, Dr. Wannous served in the UN Office for Disaster Risk Reduction (UNISDR) in Switzerland as Senior Policy Advisor coordinating the implementation and advocacy for the health components of the Sendai Framework for Disaster Risk Reduction and the Science and Technology Partnership, to optimize UN work on global initiatives related to preparedness and response. This data rich presentation provides a global scan of health impact of climate change and recent health mitigation and adaptation measures. Dr Wannous will speak to specific examples, what led to these climate initiated disasters, what went wrong or served to exacerbate the catastrophes in terms of preparedness and responses. She will share the lessons learned providing real examples of both public health successes and ‘failures'.