Download or read book Improving Characterization of Anthropogenic Methane Emissions in the United States written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-08-25 with total page 251 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding, quantifying, and tracking atmospheric methane and emissions is essential for addressing concerns and informing decisions that affect the climate, economy, and human health and safety. Atmospheric methane is a potent greenhouse gas (GHG) that contributes to global warming. While carbon dioxide is by far the dominant cause of the rise in global average temperatures, methane also plays a significant role because it absorbs more energy per unit mass than carbon dioxide does, giving it a disproportionately large effect on global radiative forcing. In addition to contributing to climate change, methane also affects human health as a precursor to ozone pollution in the lower atmosphere. Improving Characterization of Anthropogenic Methane Emissions in the United States summarizes the current state of understanding of methane emissions sources and the measurement approaches and evaluates opportunities for methodological and inventory development improvements. This report will inform future research agendas of various U.S. agencies, including NOAA, the EPA, the DOE, NASA, the U.S. Department of Agriculture (USDA), and the National Science Foundation (NSF).
Download or read book Joint North American European Workshop on Measurement and Modeling of Methane Fluxes from Landfills written by Joint North American-European Workshop on Measurement and Modeling of Methane Fluxes from Landfills (Argonne, Ill.) and published by . This book was released on 1997 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Global Modeling of Atmospheric Methane Sources and Sinks written by Sander Houweling and published by . This book was released on 1999 with total page 171 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Integrated Modeling of Methane Source Sinks and Emissions Control Costs Final Report written by and published by . This book was released on 2002 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: The overall objective of this three-year collaborative project between the University of Illinois at Urbana-Champaign (UIUC) and Battelle Pacific Northwest National Laboratory (PNNL) was to develop a framework which would incorporate computationally efficient representations of the latest knowledge concerning science, scenarios, and technical change, to allow for the effective and efficient analysis of possible future strategies to control methane. As part of this research project, we developed a model that takes into account more explicit treatment of the mechanisms controlling each important methane regional source and sink to study non-linear effects involved in methane chemistry in the atmosphere. On the policy front, we developed the relationship between economics and climatic impacts of methane emission reductions. On the application front, we applied the newly developed advanced methane modeling capabilities to study the effects of a wide range of possible scenarios of future methane emissions on climate and to examined the costs associated with achieving specific greenhouse gas reduction targets for a range of emission pathways. The significant findings from the DOE supported study are outlined.
Download or read book An Analysis of the Global Atmospheric Methane Budget Under Different Climates written by Abhijit Basu and published by Forschungszentrum Jülich. This book was released on 2013 with total page 127 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mathematical Modeling and Analysis of Methane Production and Oxidation written by Chakraborty Amit and published by LAP Lambert Academic Publishing. This book was released on 2016-01-25 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents a systematic study of methane production and oxidation processes in anoxic soils, using mathematical modelling tools and dynamical systems theory. Methane is a greenhouse gas and the second largest contributor to global warming among anthropogenic greenhouse gases. Methane emission from soil ecosystems is basically regulated by two opposing microbial processes: methane production and methane oxidation. Main topic of the book includes quantification and quantitative analyses of the soil microbial communities and associated biogeochemical processes that release soil carbon as methane gas to the atmosphere. It demonstrates and quantifies different dynamic regimes for a variety of long-term behaviors of methane emissions. It also discusses the roles of potential process-controlling factors and its spatiotemporal variability. Consequently, this study illustrates a "zero-emission" technique to force the emission towards 'zero' at long-term.
Download or read book Modeling methane emissions from rice paddies written by M. Cao and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Biogas Handbook written by Arthur Wellinger and published by Elsevier. This book was released on 2013-02-19 with total page 507 pages. Available in PDF, EPUB and Kindle. Book excerpt: With increasing pressures to utilize wastes effectively and sustainably, biogas production represents one of the most important routes towards reaching renewable energy targets. This comprehensive reference on the development and deployment of biogas supply chains and technology reviews the role of biogas in the energy mix and outlines the range of biomass and waste resources for biogas production. Contributors provide detailed coverage of anaerobic digestion for the production of biogas and review the utilization of biogas for various applications. They consider all aspects in the biogas production chain from the origin of the biomass feedstocks, feedstock selection and preparation, the anaerobic digestion process, biogas plant equipment design and operation, through to utilization of the biogas for energy production and the residue, the digestate, which can be used as a biofertilizer. The book also addresses biogas utilization, and explores environmental impacts and commercial market applications. Table of Contents: Biogas as an energy option: An overview Part 1 Biomass resources, feedstock treatment and biogas production: Biomass resources for biogas production; Analysis and characterisation of biogas feedstocks; Storage and pre-treatment of substrates for biogas production; Fundamental science and engineering of the anaerobic digestion process for biogas production; Optimisation of biogas yields from anaerobic digestion by feedstock type; Anaerobic digestion as a key technology for biomass valorisation: Roles and contribution to the energy balance of biofuel chains Part 2 Plant design, engineering, process optimisation and digestate utilization: Design and engineering of biogas plants; Energy flows in biogas plants: Analysis and implications for plant design; Process control in biogas plants; Methane emissions in biogas production; Biogas digestate quality and utilization; Land application of digestate Part 3 Biogas utilisation: international experience and best practice: Biogas cleaning; Biogas up-grading to biomethane; Biomethane injection into natural gas networks; Generation of heat and power from biogas for stationery applications: Boilers, gas engines and turbines, combined heat and power (CHP) plants and fuel cells; Biomethane for transport applications; Market development and certification schemes for biomethane
Download or read book Analysis and Modeling of Vadose Zone Gas Transport written by Kurt A. Spokas and published by . This book was released on 1998 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Nexus of Observing and Modeling Methane Emissions from Inland Water Bodies written by Timothy H. Morin and published by . This book was released on 2017 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Methane (CH4) emissions and carbon uptake in temperate freshwater wetlands act in opposing directions in the context of global radiative forcing. Large uncertainties exist for the rates of CH4 emissions making it difficult to determine the extent that CH4 emissions counteract the carbon sequestration of wetlands. There are many reasons for these uncertainties. CH4 is biologically synthesized generated in anaerobic sediments but can also be oxidized in the presence of appropriate electron acceptors. CH4 in the soil can reach the atmosphere through diffusion, plant mediation, or ebullition. Methane emissions are the end result of the interaction of all these processes, many of which are poorly understood. Additionally, wetlands are typically small and feature highly heterogeneous land cover. Each classification of land coverage may have different factors that influence its eventual emissions resulting in spatially variable methane fluxes within a wetland. This heterogeneity poses an additional challenge to determining their CH4 budget. We measured CH4 emissions at two wetlands in Ohio: 1) The Olentangy River Wetland Research Park – an experimental constructed flow through wetland park featuring two permanently flooded wetlands and 2) Old Woman Creek National Estuarine Research Reserve – A natural freshwater estuary wetland hydrologically linked to Lake Erie. We used non-steady state chambers and eddy covariance systems to characterize vertical fluxes of CH4 from the surface of the wetlands. Pore water dialysis peepers were used to approximate the belowground processes leading the emissions. We combined our measurements with numerical modeling techniques to investigate the seasonal and diurnal profiles of CH4 emissions, determine the main environmental drivers of methane emissions, understand the influence of site level heterogeneity, and to characterize the belowground processes responsible for CH4 generation/consumption in wetlands.
Download or read book Modeling Ruminant Methane Emissions from the U S Beef Cattle Industry written by Danny Carroll Turk and published by . This book was released on 1993 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing of Wetlands written by Ralph W. Tiner and published by CRC Press. This book was released on 2015-03-23 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Effectively Manage Wetland Resources Using the Best Available Remote Sensing TechniquesUtilizing top scientists in the wetland classification and mapping field, Remote Sensing of Wetlands: Applications and Advances covers the rapidly changing landscape of wetlands and describes the latest advances in remote sensing that have taken place over the pa
Download or read book Methane Emissions from Major Rice Ecosystems in Asia written by Reiner Wassmann and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Rice production is affected by changing climate conditions and has the dual role of contributing to global warming through emissions of the greenhouse gas methane. Climate change has been recognized as a major threat to the global environment. Because of insufficient field data, rice-growing countries face a problem when trying to comply with the United Nations Framework Convention on Climate Change stipulations to compile a national inventory of emissions and to explore mitigation options. Given the expected doubling in rice production in Asia, the need to evaluate the interaction between climate change and rice production is critical to forming a sound basis for future directions of technology developments by policy makers, agriculturists, environmentalists, rice producers, and rice consumers. The present book comprises two sections. The first part documents a comprehensive overview of the results achieved from an interregional research effort to quantify methane emission from major rice ecosystems and to identify efficient mitigation options. This research report broadens understanding of the contribution of rice cultivation to methane emissions and clarifies that emissions are relatively low, except in specific rice ecosystems, and that these high emissions could be ameliorated without sacrificing yield. The second section shows results from other projects that investigated the role of rice cultivators in field and laboratory approaches. The findings represent inputs for future modeling approaches in the role of rice cultivators. The expanded database generated by other projects is reflected in modeling efforts.
Download or read book Methods and Applications for Modeling and Simulation of Complex Systems written by Fazilah Hassan and published by Springer Nature. This book was released on 2023-10-12 with total page 511 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 22nd Asia Simulation Conference on Methods and Applications for Modeling and Simulation of Complex Systems, AsiaSim 2023, held in Langkawi, Malaysia, during October 25–26, 2023. The 77 full papers included in this book were carefully reviewed and selected from 164 submissions. They were organized in topical sections as follows: Modelling and Simulation, Artificial intelligence, Industry 4.0, Digital Twins Modelling, Simulation and Gaming, Simulation for Engineering, Simulation for Sustainable Development, Simulation in Social Sciences.
Download or read book Measuring and Modeling of Methane Emissions from Ponds in High Latitudes written by Zoé Rehder and published by . This book was released on 2022 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Quantifying and Modeling Methane Emissions from the North Sea Region with ICON ART written by Christian Scharun and published by . This book was released on 2021* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
