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  • Paris : OECD/IEA  (19)
  • Deutsches GeoForschungsZentrum GFZ  (13)
  • New York : Academic Press  (10)
  • English  (42)
  • Undetermined
  • 2010-2014  (32)
  • 1995-1999
  • 1980-1984
  • 1975-1979  (10)
  • 2011  (32)
  • 1976  (10)
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  • English  (42)
  • Undetermined
  • German  (13)
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  • 2010-2014  (32)
  • 1995-1999
  • 1980-1984
  • 1975-1979  (10)
Year
  • 1
    Unknown
    New York : Academic Press
    Keywords: DDC 519.5/35 ; LC QA276 ; Calculus of variations ; Mathematical statistics
    Pages: Online-Ressource (xiii, 236 pages)
    ISBN: 9780080956305
    Language: English
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  • 2
    Unknown
    New York : Academic Press
    Keywords: DDC 621.38/0414 ; LC TK5103.59 ; Estimation theory ; Optical communications ; Quantum theory ; Signal detection
    Pages: Online-Ressource (ix, 309 pages)
    ISBN: 9780080956329
    Language: English
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  • 3
    Unknown
    New York : Academic Press
    Keywords: DDC 519.2 ; LC QA280 ; Estimation theory ; Stochastic processes ; System analysis ; Time-series analysis
    Pages: Online-Ressource (xvi, 334 pages)
    ISBN: 9780080956312
    Language: English
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  • 4
    Unknown
    New York : Academic Press
    Keywords: DDC 510/.8 s ; DDC 515/.33 ; LC QA299.82eb ; LC QA3 ; Nonstandard mathematical analysis
    Pages: Online-Ressource (xiii, 326 pages)
    ISBN: 9780126741506
    Language: English
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  • 5
    Unknown
    New York : Academic Press
    Keywords: DDC 519.7/03 ; LC T57.83 ; Dynamic programming ; Stochastic control theory
    Pages: Online-Ressource (xv, 397 pages)
    ISBN: 9780120932504
    Language: English
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  • 6
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    New York : Academic Press
    Keywords: DDC 523.1/01/84 ; LC QA3 ; Astronomy - Mathematics ; Cosmology
    Pages: Online-Ressource (ix, 204 pages)
    ISBN: 9780126352504
    Language: English
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  • 7
    Keywords: coal ; electricity ; energy projections
    Description / Table of Contents: Despite public calls in many countries for reducing reliance on coal as a primary but high-carbon energy source, global demand continues to escalate. Coal has traditionally been seen as a low-cost and price-stable source of energy, but recently coal prices have increased and become much more volatile. Moreover, while coal is viewed as a very secure energy source, infrastructure bottlenecks and weather-related events can dramatically tighten the market. This new annual IEA publication, Medium-Term Coal Market Report 2011, presents a comprehensive analysis of recent trends in coal demand, supply and trade, as well as an IEA outlook for coal market fundamentals for the coming five years. The report places a special focus on trade and infrastructure development in the key exporting countries. Given the existing uncertainties on the production capacity of China to meet its challenging coal demand growth, the book presents two scenarios for coal trade: a high and a low Chinese production outlook. This comparison highlights the massive influence of Chinese behaviour on the international coal trade.
    Pages: Online-Ressource (122 Seiten)
    Language: English
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  • 8
    Keywords: energy ; energy economics
    Description / Table of Contents: The IEA’s Smart Grids Technology Roadmap identified five global trends that could be effectively addressed by deploying smart grids. These are: increasing peak load (the maximum power that the grid delivers during peak hours), rising electricity consumption, electrification of transport, deployment of variable generation technologies (e.g. wind and solar PV) and ageing infrastructure. Along with this roadmap, a new working paper – Impact of Smart Grid Technologies on Peak Load to 2050 – develops a methodology to estimate the evolution of peak load until 2050. It also analyses the impact of smart grid technologies in reducing peak load for four key regions; OECD North America, OECD Europe, OECD Pacific and China. This working paper is a first IEA effort in an evolving modelling process of smart grids that is considering demand response in residential and commercial sectors as well as the integration of electric vehicles.
    Pages: Online-Ressource (44 Seiten)
    Language: English
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  • 9
    Keywords: energy ; energy economics
    Description / Table of Contents: Increased focus has been placed on the issues of energy access and energy poverty over the last number of years, most notably indicated by the United Nations (UN) declaring 2012 as the “International Year of Sustainable Energy for All”. Although attention in these topics has increased, incorrect assumptions and misunderstandings still arise in both the literature and dialogues. Access to energy does not only include electricity, does not only include cook stoves, but must include access to all types of energy that form the overall energy system. This paper chooses to examine this energy system using a typology that breaks it into 3 primary energy subsystems: heat energy, electricity and transportation. Describing the global energy system using these three subsystems provides a way to articulate the differences and similarities for each system’s required investments needs by the private and public sectors.
    Pages: Online-Ressource (64 Seiten)
    Language: English
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  • 10
    Keywords: energy ; energy economics
    Description / Table of Contents: The International Energy Agency’s Energy Efficiency Unit (EEU) has begun a new programme of work on innovative energy-efficiency policies for mitigating fuel poverty. The IEAs current research focuses on the potential for low-income weatherisation programmes to address poor housing quality – the main driver of fuel poverty - as well as innovative methods for financing and evaluating such programmes. A common problem is that the energy-saving benefits accruing to fuel-poor households barely offset the investment required, suggesting a weak return on government spending. However, these investments have additional co-benefits for participants as well as for energy providers, property owners, local communities and society as a whole. This first IEA workshop focused on methods for incorporating the range of co-benefits into evaluation of low-income weatherisation programmes. The presentations given by top experts in the fuel poverty field are summarised in this report, along with conclusions and proposals for further research.
    Pages: Online-Ressource (40 Seiten)
    Language: English
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  • 11
    Keywords: energy ; energy economics
    Description / Table of Contents: What impact will the return of high energy prices have on the fragile economic recovery? Will geopolitical unrest, price volatility and policy inaction defer investment in the oil sector and amplify risks to our energy security? What will renewed uncertainty surrounding the role of nuclear power mean for future energy and environmental trends? Is the gap between our climate actions and our climate goals becoming insurmountable? World Energy Outlook 2011 tackles these and other pressing questions. The latest data, policy developments, and the experience of another turbulent year are brought together to provide robust analysis and insight into global energy markets. WEO-2011 once again gives detailed energy demand and supply projections out to 2035, broken down by region, fuel, sector and scenario.
    Pages: Online-Ressource (52 Seiten)
    Language: English
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  • 12
    Keywords: energy ; energy economics
    Description / Table of Contents: Increased focus has been placed on the issues of energy access and energy poverty over the last number of years, most notably indicated by the United Nations (UN) declaring 2012 as the “International Year of Sustainable Energy for All”. Although attention in these topics has increased, incorrect assumptions and misunderstandings still arise in both the literature and dialogues. Access to energy does not only include electricity, does not only include cook stoves, but must include access to all types of energy that form the overall energy system. This paper chooses to examine this energy system using a typology that breaks it into 3 primary energy subsystems: heat energy, electricity and transportation. Describing the global energy system using these three subsystems provides a way to articulate the differences and similarities for each system’s required investments needs by the private and public sectors.
    Pages: Online-Ressource (64 Seiten)
    Language: English
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  • 13
    Keywords: energy ; energy economics
    Description / Table of Contents: Timely and effective deployment of demand response could greatly increase power system flexibility, electricity security and market efficiency. Considerable progress has been made in recent years to harness demand response. However, most of this potential remains to be developed. The paper draws from IEA experience to identify barriers to demand response, and possible enablers that can encourage more timely and effective demand response including cost reflective pricing, retail market reform, and improved load control and metering equipment. Governments have a key role to play in developing and implementing the policy, legal, regulatory and market frameworks needed to empower customer choice and accelerate the development and deployment of cost-effective demand response.
    Pages: Online-Ressource (64 Seiten)
    Language: English
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  • 14
    Keywords: energy ; energy economics
    Description / Table of Contents: This working paper evaluates cost and performance trends related to carbon dioxide (CO2) capture from power generation, based on extensive analysis of data from major engineering studies published between 2006 and 2010. Since individual studies use different methodologies and boundary conditions, study estimates for over 50 CO2 capture installations are re-evaluated on a consistent basis and updated to current cost levels. The paper discusses the need for further standardisation of evaluation methodologies and additional data for specific CO2 capture routes. Further analysis for non-OECD countries is considered crucial for global energy scenario models, and for improving the skills and knowledge developing countries need to evaluate the role of CCS in their national energy contexts.
    Pages: Online-Ressource (51 Seiten)
    Language: English
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  • 15
    Keywords: energy ; energy economics
    Description / Table of Contents: The International Energy Agency (IEA) estimates that 100 carbon capture and storage (CCS) projects must be implemented by 2020 and over 3 000 by 2050 if CCS is to fully contribute to the least-cost technology portfolio for CO2 mitigation. To help countries address the many legal and regulatory issues associated with such rapid deployment, the IEA launched the Carbon Capture and Storage Legal and Regulatory Review (CCS Review) in October 2010. The CCS Review gathers contributions by national and regional governments, as well as leading organisations engaged in CCS regulatory activities, to provide a knowledge-sharing forum that supports national-level CCS regulatory development. Each contribution provides a short summary of recent and anticipated developments and highlights a particular regulatory theme (such as financial contributions to long-term stewardship). To introduce each edition, the IEA provides a brief analysis of key advances and trends. Produced bi-annually, the CCS Review provides an up-to-date snapshot of global CCS regulatory developments. The theme for the second edition of the CCS Review, released in May 2011, is long-term liability for stored CO2. Other key issues addressed include: national progress towards implementation of the EU CCS Directive; developments in marine treaties relevant to CCS; international climate change negotiations; and the development process for CCS regulation.
    Pages: Online-Ressource (108 Seiten)
    Language: English
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  • 16
    Unknown
    New York : Academic Press
    Keywords: DDC 510/.8 s ; LC QA3 ; Ergodic theory ; Topological dynamics
    Pages: Online-Ressource (x, 190 pages)
    ISBN: 9780121371500
    Language: English
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  • 17
    Unknown
    Paris : OECD/IEA
    Keywords: energy ; energy economics
    Description / Table of Contents: World Energy Outlook 2011 brings together the latest data, policy developments, and the experience of another year to provide robust analysis and insight into global energy markets, today and for the next 25 years. This edition of the IEA’s flagship WEO publication gives the latest energy demand and supply projections for different future scenarios, broken down by country, fuel and sector. It also gives special focus to such topical energy sector issues as: • Russia’s energy prospects and their implications for global markets. • The role of coal in driving economic growth in an emissions-constrained world. • The implications of a possible delay in oil and gas sector investment in the Middle East and North Africa. • How high-carbon infrastructure “lock-in” is making the 2°C climate change goal more challenging and expensive to meet. • The scale of fossil fuel subsidies and support for renewable energy and their impact on energy, economic and environmental trends. • A “Low Nuclear Case” to investigate what a rapid slowdown in the use of nuclear power would mean for the global energy landscape. • The scale and type of investment needed to provide modern energy to the billions of the world’s poor that do not have it. WEO-2011 provides invaluable insights into how the energy system could evolve over the next quarter of a century. The book is essential reading for anyone with a stake in the energy sector.
    Pages: Online-Ressource (659 Seiten)
    ISBN: 9789264124134
    Language: English
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  • 18
    Unknown
    New York : Academic Press
    Keywords: DDC 519.7/03 ; LC T57.83 ; Dynamic programming ; Stochastic control theory
    Pages: Online-Ressource (xi, 593 pages)
    ISBN: 9780124879508
    Language: English
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  • 19
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    New York : Academic Press
    Keywords: DDC 519.7/03 ; LC T57.83
    Pages: Online-Ressource (viii, 333 pages)
    ISBN: 9780121614508
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  • 20
    Keywords: energy ; energy economics
    Description / Table of Contents: The main message of this paper is that while carbon pricing is a prerequisite for least-cost carbon mitigation strategies, carbon pricing is not enough to overcome all the barriers to cost-effective energy efficiency actions. Energy efficiency policy should be designed carefully for each sector to ensure optimal outcomes for a combination of economic, social and climate change goals. The main message of this paper is that while carbon pricing is a prerequisite for least-cost carbon mitigation strategies, carbon pricing is not enough to overcome all the barriers to cost-effective energy efficiency actions. Energy efficiency policy should be designed carefully for each sector to ensure optimal outcomes for a combination of economic, social and climate change goals. This paper aims to examine the justification for specific energy efficiency policies in economies with carbon pricing in place. The paper begins with an inventory of existing market failures that attempt to explain the limited uptake of energy efficiency. These market failures are investigated to see which can be overcome by carbon pricing in two subsectors – electricity use in residential appliances and heating energy use in buildings. This analysis finds that carbon pricing addresses energy efficiency market failures such as externalities and imperfect energy markets. However, several market and behavioural failures in the two subsectors are identified that appear not to be addressed by carbon pricing. These include: imperfect information; principal-agent problems; and behavioural failures. In this analysis, the policies that address these market failures are identified as complementary to carbon pricing and their level of interaction with carbon pricing policies is relatively positive. These policies should be implemented when they can improve energy efficiency effectively and efficiently (and achieve other national goals such as improving socio-economic efficiency).
    Pages: Online-Ressource (44 Seiten)
    Language: English
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  • 21
    Keywords: energy ; energy economics
    Description / Table of Contents: Electricity use is growing worldwide, providing a range of energy services: lighting, heating and cooling, specific industrial uses, entertainment, information technologies, and mobility. Because its generation remains largely based on fossil fuels, electricity is also the largest and the fastest-growing source of energy-related CO2 emissions, the primary cause of human-induced climate change. Forecasts from the IEA and others show that “decarbonising” electricity and enhancing end-use efficiency can make major contributions to the fight against climate change. Global and regional trends on electricity supply and demand indicate the magnitude of the decarbonisation challenge ahead. As climate concerns become an essential component of energy policy-making, the generation and use of electricity will be subject to increasingly strong policy actions by governments to reduce their associated CO2 emissions. Despite these actions, and despite very rapid growth in renewable energy generation, significant technology and policy challenges remain if this unprecedented essential transition is to be achieved. The IEA Climate and Electricity Annual 2011 provides an authoritative resource on progress to date in this area, with statistics related to CO2 and the electricity sector across ten regions of the world. It also presents topical analyses on meeting the challenge of rapidly curbing CO2 emissions from electricity, from both a policy and technology perspective.
    Pages: Online-Ressource (90 Seiten)
    Language: English
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  • 22
    Keywords: energy ; energy economics
    Description / Table of Contents: As demonstrated by the March 2011 earthquake and tsunami-triggered blackouts in Japan, electricity shortfalls can happen anytime and anywhere. Countries can minimise the negative economic, social and environmental impacts of such electricity shortfalls by developing emergency energy-saving strategies before a crisis occurs. This new IEA report Saving Electricity in a Hurry: Update 2011 highlights preliminary findings and conclusions from electricity shortfalls in Japan, the United States, New Zealand, South Africa and Chile. It draws on recent analysis to: - reinforce well-established guidelines on diagnosing electricity shortfalls, identifying energy-saving opportunities and selecting a package of energy-saving measures; and - highlight proven practice for implementing emergency energy-saving programmes. This paper will be valuable to government, academic, private-sector and civil-society stakeholders who inform, develop and implement electricity policy in general, and emergency energy-saving programmes in particular.
    Pages: Online-Ressource (60 Seiten)
    Language: English
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  • 23
    Keywords: energy ; energy economics
    Description / Table of Contents: The International Energy Agency (IEA) estimates that 100 Carbon Capture and Storage (CCS) projects will be required by 2020 and over 3 000 by 2050 if CCS is to contribute fully to the least-cost technology portfolio for CO2 mitigation. For CCS to reach its emissions reduction potential, the 2009 IEA publication Technology Roadmap: Carbon Capture and Storage recommends that international legal obstacles associated with global CCS deployment be removed by 2012 – including the prohibition on transboundary CO2 transfer under the London Protocol. The London Protocol was amended by contracting parties in 2009 to allow for cross-border transportation of CO2 for sub-seabed storage, but the amendment must be ratified by two-thirds of contracting parties to enter into force. It is unlikely that this will occur in the near term; this working paper therefore outlines options that may be available to contracting parties under international law to address the barrier to deployment presented by Article 6, pending formal entry into force of the 2009 amendment.
    Pages: Online-Ressource (40 Seiten)
    Language: English
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  • 24
    Keywords: energy ; energy economics
    Description / Table of Contents: Special early excerpt of the World Energy Outlook 2010 for the United Nations General Assembly on the Millenium Development Goals.
    Pages: Online-Ressource (52 Seiten)
    Language: English
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  • 25
    Keywords: energy ; energy economics
    Description / Table of Contents: What impact will the return of high energy prices have on the fragile economic recovery? Will geopolitical unrest, price volatility and policy inaction defer investment in the oil sector and amplify risks to our energy security? What will renewed uncertainty surrounding the role of nuclear power mean for future energy and environmental trends? Is the gap between our climate actions and our climate goals becoming insurmountable? World Energy Outlook 2011 tackles these and other pressing questions. The latest data, policy developments, and the experience of another turbulent year are brought together to provide robust analysis and insight into global energy markets. WEO-2011 once again gives detailed energy demand and supply projections out to 2035, broken down by region, fuel, sector and scenario.
    Pages: Online-Ressource (130 Seiten)
    Language: English
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  • 26
    Unknown
    New York : Academic Press
    Keywords: DDC 510 s ; DDC 530.1/2/01515733 ; LC QA3
    Pages: Online-Ressource (xii, 303 pages)
    ISBN: 9780123745507
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  • 27
    Keywords: energy ; energy economics
    Description / Table of Contents: This paper explores the relationships between climate policy and renewable energy policy instruments. It shows that, even where CO2 emissions are duly priced, specific incentives for supporting the early deployment of renewable energy technologies are justified by the steep learning curves of nascent technologies. This early investment reduces costs in the longer term and makes renewable energy affordable when it needs to be deployed on a very large scale to fully contribute to climate change mitigation and energy security. The paper also reveals other noteworthy interaction effects of climate policy and renewable policy instruments on the wholesale electricity prices in deregulated markets, which open new areas for future research.
    Pages: Online-Ressource (26 Seiten)
    Language: English
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  • 28
    Keywords: energy ; energy economics
    Description / Table of Contents: MOSES contains a novel approach to analysing energy security, which can be used to identify energy security priorities, as a starting point for national energy security assessments and to track the evolution of a country’s energy security profile. By grouping together countries with similar “energy security profiles”, MOSES depicts the energy security landscape of IEA countries. By extending the MOSES methodology to electricity security and energy services in the future, the IEA aims to develop a comprehensive policy-relevant perspective on global energy security. Ensuring energy security has been at the centre of the IEA mission since its inception, following the oil crises of the early 1970s. While the security of oil supplies remains important, contemporary energy security policies must address all energy sources and cover a a comprehensive range of natural, economic and political risks that affect energy sources, infrastructures and services. In response to this challenge, the IEA is currently developing a Model Of Short-term Energy Security (MOSES) to evaluate the energy security risks and resilience capacities of its member countries. The current version of MOSES covers short-term security of supply for primary energy sources and secondary fuels among IEA countries. It also lays the foundation for analysis of vulnerabilities of electricity and end-use energy sectors. MOSES contains a novel approach to analysing energy security, which can be used to identify energy security priorities, as a starting point for national energy security assessments and to track the evolution of a country’s energy security profile. By grouping together countries with similar “energy security profiles”, MOSES depicts the energy security landscape of IEA countries. By extending the MOSES methodology to electricity security and energy services in the future, the IEA aims to develop a comprehensive policy-relevant perspective on global energy security. This Brochure provides and overview of the analysis and results. Readers interested in an in-depth discussion of methodology are referred to the MOSES Working Paper.
    Pages: Online-Ressource (16 Seiten)
    Language: English
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  • 29
    Keywords: energy ; energy economics
    Description / Table of Contents: Ensuring energy security has been at the centre of the IEA mission since its inception, following the oil crises of the early 1970s. While the security of oil supplies remains important, contemporary energy security policies must address all energy sources and cover a a comprehensive range of natural, economic and political risks that affect energy sources, infrastructures and services. In response to this challenge, the IEA is currently developing a Model Of Short-term Energy Security (MOSES) to evaluate the energy security risks and resilience capacities of its member countries. The current version of MOSES covers short-term security of supply for primary energy sources and secondary fuels among IEA countries. It also lays the foundation for analysis of vulnerabilities of electricity and end-use energy sectors. MOSES contains a novel approach to analysing energy security, which can be used to identify energy security priorities, as a starting point for national energy security assessments and to track the evolution of a country’s energy security profile. By grouping together countries with similar “energy security profiles”, MOSES depicts the energy security landscape of IEA countries. By extending the MOSES methodology to electricity security and energy services in the future, the IEA aims to develop a comprehensive policy-relevant perspective on global energy security. Ensuring energy security has been at the centre of the IEA mission since its inception, following the oil crises of the early 1970s. While the security of oil supplies remains important, contemporary energy security policies must address all energy sources and cover a a comprehensive range of natural, economic and political risks that affect energy sources, infrastructures and services. In response to this challenge, the IEA is currently developing a Model Of Short-term Energy Security (MOSES) to evaluate the energy security risks and resilience capacities of its member countries. The current version of MOSES covers short-term security of supply for primary energy sources and secondary fuels among IEA countries. It also lays the foundation for analysis of vulnerabilities of electricity and end-use energy sectors. MOSES contains a novel approach to analysing energy security, which can be used to identify energy security priorities, as a starting point for national energy security assessments and to track the evolution of a country’s energy security profile. By grouping together countries with similar “energy security profiles”, MOSES depicts the energy security landscape of IEA countries. By extending the MOSES methodology to electricity security and energy services in the future, the IEA aims to develop a comprehensive policy-relevant perspective on global energy security. This Working Paper is intended for readers who wish to explore the MOSES methodology in depth; there is also a brochure which provides an overview of the analysis and results.
    Pages: Online-Ressource (48 Seiten)
    Language: English
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  • 30
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Technical Report
    Publication Date: 2020-02-12
    Description: The 9th TRACE conference (Tree Rings in Archaeology, Climatology and Ecology) was organized by the Institute for Forest Growth, University of Freiburg, on April 22nd – 25th 2010 in Freiburg, Germany. [...] This volume of TRACE Proceedings contains 26 short papers and gives an overview of the wide spectrum of fields in tree-ring research.
    Language: English
    Type: info:eu-repo/semantics/report
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  • 31
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Techncial Report STR
    Publication Date: 2020-02-12
    Description: This thesis summarizes the results of the WSM project’s second phase (1996‐2008). In particular it presents the major achievements that have been accomplished with the WSM 2008 database release that has been compiled under the guidance of the author. Furthermore, the thesis briefly presents three of the author’s numerical models that aim at quantification the temporal changes of the crustal stress field.
    Language: English
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  • 32
    Publication Date: 2020-02-12
    Language: English
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  • 33
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Technical Report
    Publication Date: 2020-02-12
    Description: [...] In context of this work, a new damage mechanism is proposed: the mechanically induced fracture face skin. This new mechanism results from mechanical interactions between the proppants and the reservoir rock, due to the increasing stress on the rock-proppant system during production. Proppant embedment into the fracture face and proppant crushing leads to fines production and can impair the fracture performance. In order to achieve sustainable, longterm productivity from a reservoir, it is indispensable to understand the hydraulic and mechanical interactions in the rock-proppant system. In order to analyse the hydraulic and mechanical interactions, laboratory experiments using three different flow cells were conducted. These flow cells were used to localise and quantify the mechanical damage at the fracture face, as well as to investigate the long-term stability of a rock-proppant system under in-situ reservoir conditions. [...]
    Language: English
    Type: info:eu-repo/semantics/doctoralThesis
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  • 34
    Publication Date: 2020-02-12
    Description: This short report describes the first attempt at obtaining a preliminary cross-border risk model for Central Asia starting from datasets that were already available at the beginning of the EMCA Project.
    Language: English
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  • 35
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Technical Report STR
    Publication Date: 2020-02-12
    Description: The magnetic field of the Earth varies in space and time. Geomagnetism as research area that aims to describe and understand the sources of these variations is supported by two pillars: first, regular high-precision measurements in the global network of magnetic observatories and repeat stations are necessary to register the field and its variations at all. Second, mathematical methods are required in order to extract magnetic field models from this large data set. Methods applied to data offer insights in the mechanisms generating the magnetic field. This thesis covers both subjects. In a first part, following the description of the state of the art in observatory instrumentation, I explain in detail two instruments that have the potential to streamline the classical procedures: The Geomagnetic AUtomated SyStem GAUSS paves the way to automated absolute measurements, up to now only possible manually. The newly developed DI3 technique improves and simplies the standard manual measurements signicantly and thus reduces the requirements placed on observers. The second part deals with the mathematical tools available for geomagnetic field modelling. I focus on harmonic splines that can be derived from the classical approach of spherical harmonics. These base functions are interpolatory and have a localised shape while satisfying Laplaces equation. Hence, they are applicable to fit data regionally or globally. The harmonic splines are used with a data set made of repeat station and observatory measurements from Southern Africa. This region is of special interest because the field intensity is very low and and both spatial and temporal field gradients exist. Subdivided into an analysis of ancient (years 1961-2001) and recent (2005-2009) data, two continuous regional field models SAMS and X-SAMS are derived. From the analysis of the field models, a better understanding of the field behaviour is gained. Finally, the harmonic splines are used in a case study on globally distributed secular variation data. Rotating the data set in a system of coordinates aligned with the dipole axis and modelling it with the harmonic splines reveals the external origin of observed fast variations.
    Language: English
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Technical Report
    Publication Date: 2020-02-12
    Description: [...] In this thesis, data from seismic and infrasound stations were analyzed in order to see effects of tsunamis of the great Sumatra-Andaman 2004 and Tohuku-Oki 2011 earthquakes. Data used are from seismic stations of the Global Seismic Network (GSN) around the Indian and Pacific oceans and from infrasound stations of the International Monitoring System of the Comprehensive Test Ban Treaty Organization (IMS/CTBTO). In both data sets, seismic and infrasound, tsunami signals are observed in the period range of 500to2000s. These data may add to two new very useful observables for tsunami early warning systems. [...]
    Language: English
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Technical Report STR
    Publication Date: 2020-02-12
    Description: The present work tries to condense the state‐of‐the‐art for the exploration and exploitation of geothermal energy. Although a lot of experiences from different sites worldwide are integrated in this study, some sections do reflect the German experience. For example, the German Renewable Energy Sources Act (EEG, see page 78) enables also a specific promotion and growth of the geothermal sector in Germany by guaranteeing special feed‐in tariffs for a 20‐years period. During the last years, several countries worldwide have introduced similar renewable energy promotion policies (some of them restricted to certain energy sources only or requiring a certain renewable energy quote), supporting investigations also in geothermal applications. Thus, the experiences in Germany may be of some value. Dependent on the political‐economical framework, the geothermal exploration and exploitation of deeper reservoirs represents an excellent option to extend geothermal applications also in areas where shallow geothermal reservoirs may not be able to match the local energy demand. Therefore, also challenges related to the exploration and exploitation of deep low‐permeability reservoirs are included in this study.
    Language: English
    Type: info:eu-repo/semantics/report
    Format: application/pdf
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Techncial Report STR - Data
    Publication Date: 2020-02-12
    Description: [...] In order to construct the 3D structural model of the Norwegian continental margin, all mentioned datasets were compiled and gridded separately for each layer. The gridded data were merged into the 3D structural model and, therefore, all obtained thickness maps and structural depth maps are spatially consistent in 3D.
    Language: English
    Type: info:eu-repo/semantics/report
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  • 39
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Technical Report STR - Data
    Publication Date: 2020-02-12
    Language: English
    Type: info:eu-repo/semantics/report
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  • 40
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Technical Report STR
    Publication Date: 2020-02-12
    Description: Megacities as challenge for interdisciplinary research: the "Risk Habitat Megacity" research initiative / Dirk Heinrichs, Kerstin Krellenberg. - Mega-urban societies at risk / Frauke Kraas, Carsten Butsch. - Megacity Istanbul: earthquake risk and early warning in a megacity / Stefano Parolai, Jochen Zschau, Claus Milkereit, Matteo Picozzi, Angelo Strollo. - Neapel in der Zange / Thomas Walter
    Language: English , German
    Type: info:eu-repo/semantics/report
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  • 41
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    Deutsches GeoForschungsZentrum GFZ
    In:  Scientific Techncial Report
    Publication Date: 2020-02-12
    Description: The theme of this thesis is to investigate the sensitivity of several different formations of future satellite gravity missions. The work has three main aspects. The first, and the most important, is the development and testing of a global directional wavelet transformation as a mathematical tool to analyse sensitivity of satellite gravity mission. This is done by propagating full covariance matrices w.r.t. the spherical harmonics functions onto the directional wavelet transform. For the first time, we are able to accurately quantify the stripes that are typical for the error pattern of the GRACE gravity mission. The second aspect is the simulation of a satellite gravity formation, in order to achieve accuracy information in the form of a full covariance matrix. The third aspect involves analyzing results from the GRACE mission, which is already in orbit and has been delivering data since 2002. We compare the simulations of GRACE to the data delivered by the GRACE mission. This way, we are able to establish a relationship between the simulations and real-life data and evaluate the quality of the simulations.
    Language: English
    Type: info:eu-repo/semantics/doctoralThesis
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  • 42
    Publication Date: 2020-02-12
    Language: English
    Type: info:eu-repo/semantics/doctoralThesis
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