Impact of volcanic halogens on the ozone layer and climate, a look to the past to highlight the present

2020 ◽  
Author(s):  
Hélène Balcone-Boissard ◽  
Thiébaut D'Augustin ◽  
Georges Boudon ◽  
Slimane Bekki ◽  
Magali Bonifacie ◽  
...  
Keyword(s):  
Volcanic Eruptions ◽  
Field Work ◽  
Field Studies ◽  
Global Scale ◽  
Ozone Layer ◽  
Volatile Species ◽  
Magma Supply ◽  
Global Impacts ◽  
Almost All ◽  
The Impact

<p>Explosive eruptions of the Plinian type inject large amounts of particles (pumice, ash, aerosols) and volatile species into the atmosphere. They result from the rapid discharge of a magma chamber and involve large volumes of magma (from a km<sup>3</sup> to hundreds of km<sup>3</sup>). Such eruptions correspond to a rapid ascent of magma in the conduit driven by the exsolution of volatile species. If the magma supply is continuous, this jet produces a convective eruptive column that can reach tens of km in height and transports gas and particles (pumice, ash, aerosols) directly into the stratosphere. Depending on the latitude of the volcano, the volume of implied magma, the height of the eruptive plume and the composition of the released gaseous and particulate mixture, these events can strongly affect the environment at the local or even at a global scale. Almost all studies on global impacts of volcanic eruptions have largely focused on the sulfur component. Volcanoes are also responsible for the emission of halogens which have a crucial impact on the ozone layer and therefore the climate.</p><p>The objective of our project is to revisit the issue of the impact of volcanism on the atmosphere and climate by considering not only the sulfur component but also the halogen component. We will provide field work-based constraints on the strength of halogen (Cl and Br) emissions and on degassing processes for key eruptions, we will characterise the dynamics of volcanic plumes, notably the vertical distribution of emissions and we will explore and quantify the respective impacts of sulfur and halogen emissions on the ozone layer and climate.</p><p> </p><p>Here we will shed light on the methodology that will combine field campaign, laboratory analysis of collected samples and a hierarchy of modelling tools to study. We use an approach combining field studies, petrological characterization, geochemical measurements including isotopic data, estimation of the volume of involved magma and the height of injection of gases and particles by modelling the eruptive plume dynamic and numerical simulation of the impacts at the plume scale and at the global scale.  The first halogen budget will also be presented.</p>

scholarly journals Global Impacts and Trends of the COVID-19 Pandemic on the Cruise Sector: A Focus On South Africa

2021 ◽  
Vol 10(1) (10(1)) ◽  
pp. 22-39
Author(s):  
Reshma Sucheran
Keyword(s):  
South Africa ◽  
Secondary Data ◽  
Global Scale ◽  
Tourism Industry ◽  
Cruise Industry ◽  
News Reports ◽  
Cruise Tourism ◽  
Health Related ◽  
Global Impacts ◽  
The Impact

Cruise tourism is one of the major growth areas of international tourism, and the impact of cruise tourists on a national economy is similar to that of other foreign visitors. The cruise industry has, however, continuously faced exposure to various types of health risks, which can develop into health-related crises, to which both passengers and crew members are vulnerable The coronavirus 2019 (COVID-19 pandemic has reached a critical situation on a global scale and is severely impacting on the global cruise tourism industry. This papers seeks to examine the impacts of the COVID-19 pandemic on the cruise tourism industry globally and in South Africa specifically. Desktop research was undertaken to gather data and insights on the unfolding global pandemic and its effect on the cruise sector. Secondary data from various national and international organisations was analysed, as well as current news reports and academic literature. The data indicates that the cruise sector is one of the hardest hit sectors of the tourism industry, and the economic impacts of the COVID-19 pandemic on this sector is devastating. The data further implies that the future of the cruise industry looks bleak, especially due to the reputational damage the sector is currently faced with.

scholarly journals Analysis of Outbreak and Global Impacts of the COVID-19

Healthcare ◽  
2020 ◽  
Vol 8 (2) ◽  
pp. 148 ◽  
Author(s):  
Ishaani Priyadarshini ◽  
Pinaki Mohanty ◽  
Raghvendra Kumar ◽  
Le Hoang Son ◽  
Hoang Thi Minh Chau ◽  
...  
Keyword(s):  
Large Family ◽  
Global Scale ◽  
First Case ◽  
The Future ◽  
Global Impacts ◽  
Living Species ◽  
Global Concern ◽  
Precautionary Measures ◽  
The Impact ◽  
Corona Viruses

Corona viruses are a large family of viruses that are not only restricted to causing illness in humans but also affect animals such as camels, cattle, cats, and bats, thus affecting a large group of living species. The outbreak of Corona virus in late December 2019 (also known as COVID-19) raised major concerns when the outbreak started getting tremendous. While the first case was discovered in Wuhan, China, it did not take long for the disease to travel across the globe and infect every continent (except Antarctica), killing thousands of people. Since it has become a global concern, different countries have been working toward the treatment and generation of vaccine, leading to different speculations. While some argue that the vaccine may only be a few weeks away, others believe that it may take some time to create the vaccine. Given the increasing number of deaths, the COVID-19 has caused havoc worldwide and is a matter of serious concern. Thus, there is a need to study how the disease has been propagating across continents by numbers as well as by regions. This study incorporates a detailed description of how the COVID-19 outbreak started in China and managed to spread across the globe rapidly. We take into account the COVID-19 outbreak cases (confirmed, recovered, death) in order to make some observations regarding the pandemic. Given the detailed description of the outbreak, this study would be beneficial to certain industries that may be affected by the outbreak in order to take timely precautionary measures in the future. Further, the study lists some industries that have witnessed the impact of the COVID-19 outbreak on a global scale.

scholarly journals Review of Local and Global Impacts of Volcanic Eruptions and Disaster Management Practices: The Indonesian Example

Geosciences ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 109
Author(s):  
Mukhamad N. Malawani ◽  
Franck Lavigne ◽  
Christopher Gomez ◽  
Bachtiar W. Mutaqin ◽  
Danang S. Hadmoko
Keyword(s):  
Management Practices ◽  
Multiple Scales ◽  
Drainage System ◽  
Volcanic Eruptions ◽  
Disaster Risk ◽  
Structural Morphology ◽  
Global Impacts ◽  
Local Impacts ◽  
Contrast Information ◽  
The Impact

This paper discusses the relations between the impacts of volcanic eruptions at multiple-scales and the related-issues of disaster-risk reduction (DRR). The review is structured around local and global impacts of volcanic eruptions, which have not been widely discussed in the literature, in terms of DRR issues. We classify the impacts at local scale on four different geographical features: impacts on the drainage system, on the structural morphology, on the water bodies, and the impact on societies and the environment. It has been demonstrated that information on local impacts can be integrated into four phases of the DRR, i.e., monitoring, mapping, emergency, and recovery. In contrast, information on the global impacts (e.g., global disruption on climate and air traffic) only fits the first DRR phase. We have emphasized the fact that global impacts are almost forgotten in the DRR programs. For this review, we have extracted case studies from Indonesia, and compared them to those of other regions, because Indonesia is home to >130 volcanoes and experienced several latest volcanic eruptions with VEI > 5.

Impact of November 2010 volcanic activity on the UTLS temperatures

2020 ◽  
Author(s):  
Elżbieta Lasota ◽  
Riccardo Biondi ◽  
Florian Ladstädter ◽  
Andrea K. Steiner
Keyword(s):  
Lower Stratosphere ◽  
Southern Oscillation ◽  
Linear Trend ◽  
Volcanic Eruptions ◽  
Global Scale ◽  
Stratospheric Aerosol ◽  
Atmospheric Variability ◽  
Maximum Warming ◽  
The Impact ◽  
Temperature Time

<p>Recent studies have shown an increase of stratospheric aerosol optical depth in the last 20 years despite the absence of large volcanic eruptions in the same period, contributing to supporting the hypothesis that several minor eruptions could impact the atmospheric variability as a large one. November 2010 was a relatively active volcanic period in the tropical belt, three eruptions with Volcanic Explosivity Index higher than 3 occurred in a time span of about 3 weeks: Merapi, Tengger Caldera and Tungurahua. Merapi was the largest eruption of the three, directly overshooting the stratosphere and injecting a large amount of sulfur dioxide. In this study, we analyse the impact of this series of eruptions on the temperature derived from radio occultation observations in upper troposphere lower stratosphere at the local, regional and global scale. The impact of the Quasi‐Biennial Oscillation, El Niño–Southern Oscillation, and linear trend on temperature is estimated and removed from temperature time series using multiple linear regression. Signatures of volcanic eruptions in temperature are analysed using post fit residuals. The results show significant warming in the lower stratosphere between 10°S and 0° for a period of 7 months after the eruptions with a maximum anomaly amplitude of about 1.4 K at 18 km altitude. Whilst the maximum warming in Merapi’s vicinity occurred 4 months after the eruption and reached the magnitude of almost 4 K.</p>

scholarly journals Flood Height Measurement and Analysis in Parts of Obio/Akpor Local Government Area, Port Harcourt Metropolis, Nigeria

2019 ◽  
Vol 8 (2) ◽  
pp. 1
Author(s):  
Nwankwoala H. O. ◽  
Jibril T.
Keyword(s):  
Local Government ◽  
Field Work ◽  
Field Studies ◽  
Local Government Area ◽  
Annual Rainfall ◽  
Height Measurement ◽  
Port Harcourt ◽  
Rivers State ◽  
The Impact ◽  
Flood Prone Areas

This study was conducted on flood sensitive areas in parts of Obio-Akpor Local Government Area, Port Harcourt, Rivers State, Nigeria, in order to determine the impact of flood on the residents of the area. The method of study involved field work and laboratory analysis. Field studies involved flood height measurements. Flood heights monitored and measured over a period of one week was used to determine the flood daily encroachment rates and the flood daily receding rates. Flood encroachment rates ranged from 9.47 to 19.67 cm/day in Rumuigbo, and 6.47 to 9.00 cm/day in Ozuoba. Flood recede rates ranged from 0.87 to 3.93 cm/day and 5.00 to 8.00 cm/day in Rumuigbo and Ozuoba. These results were confirmed by the high annual rainfall (2198.73 mm/hr on average) that occurs on average round the year in Rivers State. The buildings in these flood prone areas were constructed with concrete and blocks which are susceptible to cracking and failure when constantly immersed in water for prolonged time. It is therefore recommended that large sloping gutters be constructed within strategic places in the area in order to properly transport water to the nearby rivers and ensure that dumpsites around flood prone areas are evacuated to prevent contaminated water from recharging the aquifer.

scholarly journals Flow. An exploration of the mindsets and behaviours of designers in their creative ecosystem

2020 ◽  
pp. 64-65
Author(s):  
Raul Sarrot
Keyword(s):  
Design Process ◽  
Design Education ◽  
Design Thinking ◽  
Field Work ◽  
Global Scale ◽  
Mental Wellbeing ◽  
Environmental Agents ◽  
Points Of View ◽  
The Individual ◽  
The Impact

How might Designers transcend the barriers to creativity to achieve an ideal state of flow during their Design process? What type of ecosystems and other environmental agents affect their creative mindsets and behaviours during their process? How resilience and mental wellbeing play a role in their work during challenging times? How different cultural environmental backgrounds could play a role in troubleshooting roadblocks for creativity? What are the personal, societal and cultural impacts of recent Covid lockdowns in the Design process and do digital environments affect the ability to sustain a healthy design practice? How having the recent mindset of designing for a globalised world reacts to the reality of being in –and designing from– Aoteroa New Zealand’s safe ‘bubble’? How this new fluid reality could affect the mindset and behaviours of current and future Designers? Tracing parallels between Design education and industry-based practice, Flow is a research project that explores the mindsets and behavious of Designers during their creative process. Particularly, it delves into the Designers’ ecosystems taking into consideration the impact and influence of the different components and the conditions of digital and physical environments both chosen or imposed both in academic world and in industry. Flow goes beyond researching mindsets and behaviours. It also explores what could constitute potential bridges and barriers to creativity and what could ignite or enable positive and productive creative attitudes in Designers. Based on foundational art essays, such as Wassily Kandinsky’s classic ‘Concerning the Spiritual in Art’ and Hundertwasser’s ‘Five Skins’; and blending in points of view of traditional graphic or brand designers (such as Milton Glaser and Michael Bierut) and combining this with Positive Psychology concepts (such as Csikszentmihalyi’s optimal experience) and primary research done specifically by the author, this presentation challenges paradigms and contrasts core design principles and philosophies. It balances the tensions between the individual spark of creativity, the playful serendipity and the ‘inventor’s ligthbulb mindset’ and contrasts it with different creative processes, from the specialist’s apprentice/master craftsmanship model to more contemporary methodologies or techniques such as Design Thinking or Agile and their co-creation, prototyping and iteration modules. This provides the backdrop where mindsets and behaviours and the creativeecosystems are explored. As a piece of research, Flow doesn’t offer final crystalised answers or solutions yet instead poses critical questions and offers an open dialogue with diverse points of view based not only on specific primary and secondary research conducted over the last 5 years by the author yet also feeds from the author’s insights, a designer and academic with 30 years experience of combined practice in academia and industry field-work at a global scale.

scholarly journals Optimization strategies of human mobility during the COVID-19 pandemic: A review

2021 ◽  
Vol 18 (6) ◽  
pp. 7965-7978
Author(s):  
Soumyajyoti Biswas ◽  
◽  
Amit Kr Mandal ◽  
Keyword(s):  
Human Mobility ◽  
Global Scale ◽  
Data Driven ◽  
Virus Spread ◽  
Spreading Process ◽  
The Public ◽  
Short Period ◽  
Travel Restrictions ◽  
Almost All ◽  
The Impact

<abstract><p>The impact of the ongoing COVID-19 pandemic is being felt in all spheres of our lives – cutting across the boundaries of nation, wealth, religions or race. From the time of the first detection of infection among the public, the virus spread though almost all the countries in the world in a short period of time. With humans as the carrier of the virus, the spreading process necessarily depends on the their mobility after being infected. Not only in the primary spreading process, but also in the subsequent spreading of the mutant variants, human mobility plays a central role in the dynamics. Therefore, on one hand travel restrictions of varying degree were imposed and are still being imposed, by various countries both nationally and internationally. On the other hand, these restrictions have severe fall outs in businesses and livelihood in general. Therefore, it is an optimization process, exercised on a global scale, with multiple changing variables. Here we review the techniques and their effects on optimization or proposed optimizations of human mobility in different scales, carried out by data driven, machine learning and model approaches.</p></abstract>

Contemporary Qur'anic Studies in Iran and its Relationship with Qur'anic Studies in the West

2012 ◽  
Vol 14 (1) ◽  
pp. 45-72
Author(s):  
Morteza Karimi-Nia
Keyword(s):  
Islamic Law ◽  
Human Sciences ◽  
The West ◽  
Communications Technologies ◽  
Religious Learning ◽  
The Status ◽  
Islamic Republic Of Iran ◽  
Almost All ◽  
The Impact ◽  
The Relationship

The status of tafsīr and Qur'anic studies in the Islamic Republic of Iran has changed significantly during recent decades. The essay provides an overview of the state of Qur'anic studies in Iran today, aiming to examine the extent of the impact of studies by Western scholars on Iranian academic circles during the last three decades and the relationship between them. As in most Islamic countries, the major bulk of academic activity in Iran in this field used to be undertaken by the traditional ʿulamāʾ; however, since the beginning of the twentieth century and the establishment of universities and other academic institutions in the Islamic world, there has been increasing diversity and development. After the Islamic Revolution, many gradual changes in the structure and approach of centres of religious learning and universities have occurred. Contemporary advancements in modern sciences and communications technologies have gradually brought the institutions engaged in the study of human sciences to confront the new context. As a result, the traditional Shīʿī centres of learning, which until 50 years ago devoted themselves exclusively to the study of Islamic law and jurisprudence, today pay attention to the teaching of foreign languages, Qur'anic sciences and exegesis, including Western studies about the Qur'an, to a certain extent, and recognise the importance of almost all of the human sciences of the West.

IFRS IMPLEMENTATION AS ONE OF THE FACTORS FOR IMPROVING THE INVESTMENT CLIMATE IN UKRAINE

2017 ◽  
Author(s):  
Kateryna Sova ◽  
◽  
Natalia Yatsenko ◽  
Denys Zagirniak ◽  
◽  
...  
Keyword(s):  
Financial Reporting ◽  
Direct Investment ◽  
Financial Statements ◽  
International Standards ◽  
Investment Climate ◽  
The European Union ◽  
Economic Activities ◽  
Financial Reporting Standards ◽  
Almost All ◽  
The Impact

The article is devoted to the study of the impact of the introduction of International Financial Reporting Standards (IFRS) on changes in the investment climate in Ukraine. The relevance of the topic is that improving the practice of applying IFRS as a tool for exchanging financial information is one of the key conditions for improving the investment climate in Ukraine. The authors have created the generalized scheme that illustrates the chronological list of enterprises that are required by law to prepare financial statements in accordance with IFRS. It was noted that in 2018, in accordance with Part 2 of Article 12 of the law on accounting and financial reporting in Ukraine and resolution of the Cabinet of Ministers of Ukraine No. 547 from 11.07.2018, the criteria of enterprises that are required to prepare financial statements in accordance with IFRS were updated. This step significantly increased the level of application of international standards due to the adoption of such a decision at the legislative level. The dynamics of the number of IFRS enterprises in Ukraine was analyzed. The analysis showed that over the past three years, the number of almost all enterprises that must apply international standards has been growing. The advantages of using IFRS for different users of financial statements were determined. It was determined that the priority users of IFRS financial statements are investors. At the same time, it was noted that the main advantage for other users of financial statements prepared in accordance with international standards is the improvement of the investment climate. The dynamics of the Investment Attractiveness Index of Ukraine based on the Likert scale in the period from 2016 to 2020 was analyzed. The direct investment receipts to Ukraine from the European Union countries were studied. The dynamics of direct investment in the Ukrainian economy was analyzed for two types of economic activities that should form financial statements in accordance with IFRS, namely, the extractive industry and quarrying, as well as financial and insurance activities.

The Impact of Entrepreneurial Behavior on Sales Volume

2017 ◽  
Vol 1 (1) ◽  
pp. 1-6
Author(s):  
Adjeng Tiara Eltari ◽  
Hendrati Dwi Mulyaningsih
Keyword(s):  
Quantitative Research ◽  
Coefficient Of Determination ◽  
Sales Volume ◽  
Entrepreneurial Behavior ◽  
Street Vendors ◽  
Quantitative Research Methods ◽  
Entrepreneurial Behaviour ◽  
Full Calculation ◽  
Almost All ◽  
The Impact

This research was conducted at the Culinary Hawkers that located on Highway Sukapura, Dayeuhkolot, Bandung. This study examines the Entrepreneurial behaviour which resulted in increased sales volumes. Almost all Culinary Hawkers on Highway Sukapura doesn’t yet have the entrepreneurial behavior in accordance with the characteristics - traits mentioned by Suryana, Confident, Own initiative, Have achievement motive, Having leadership, and Dare to take risks with the full calculation. The purpose of this study was to investigate the influence of entrepreneurial behavior to the merchant's sales volume culinary pavement on Highway Sukapura, Dayeuhkolot, Bandung.Researchers used quantitative research methods. The population in this study was 63 Merchants Culinary Street on Highway Sukapura. Samples are 63 street vendors in JalanSukapura. Data were analyzed using simple regression analysis.The results showed that entrepreneurial behavior affect the sales volume of culinary street traders in Highway Sukapura. Based on the calculation coefficient of determination (R2) can be seen the effect of entrepreneurial behavior variables (X) on sales volume (Y) is approximately 94%. While the remaining 6% are influenced by other factors such as competence, performance, and motivation.

Sign in / Sign up

Export Citation Format

Share Document