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Observing Marine Inorganic Carbon
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Book Synopsis Observing Marine Inorganic Carbon by : Ellen M. Briggs
Download or read book Observing Marine Inorganic Carbon written by Ellen M. Briggs and published by American Chemical Society. This book was released on 2023-05-30 with total page 197 pages. Available in PDF, EPUB and Kindle. Book excerpt: Technology has always played a major role in oceanography; new advances have changed how we observe the ocean. Among the many interests driving marine carbon observations, ocean acidification and marine carbon dioxide removal are at the forefront of research requiring better sensing options. There has been a recent explosion of interest in adapting existing technologies and developing new methods to provide much greater coverage of monitoring and better constraining the marine carbon cycle. As new players come to the field from various industries and backgrounds, we often field questions about why we don’t yet have commercially available in situ sensors for more biogeochemical parameters. There are many challenges to working in marine environments regardless of what we are trying to measure, and producing quality data on the time and space scales required for carbon cycle work is a huge task. Many clever people have faced these challenges with fervor and creativity, and we look forward to exciting new developments in this field.
Book Synopsis Ocean Acidification by : National Research Council
Download or read book Ocean Acidification written by National Research Council and published by National Academies Press. This book was released on 2010-09-14 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ocean has absorbed a significant portion of all human-made carbon dioxide emissions. This benefits human society by moderating the rate of climate change, but also causes unprecedented changes to ocean chemistry. Carbon dioxide taken up by the ocean decreases the pH of the water and leads to a suite of chemical changes collectively known as ocean acidification. The long term consequences of ocean acidification are not known, but are expected to result in changes to many ecosystems and the services they provide to society. Ocean Acidification: A National Strategy to Meet the Challenges of a Changing Ocean reviews the current state of knowledge, explores gaps in understanding, and identifies several key findings. Like climate change, ocean acidification is a growing global problem that will intensify with continued CO2 emissions and has the potential to change marine ecosystems and affect benefits to society. The federal government has taken positive initial steps by developing a national ocean acidification program, but more information is needed to fully understand and address the threat that ocean acidification may pose to marine ecosystems and the services they provide. In addition, a global observation network of chemical and biological sensors is needed to monitor changes in ocean conditions attributable to acidification.
Book Synopsis Marine Carbon Biogeochemistry by : Jack J. Middelburg
Download or read book Marine Carbon Biogeochemistry written by Jack J. Middelburg and published by Springer. This book was released on 2019-01-25 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: This open access book discusses biogeochemical processes relevant to carbon and aims to provide readers, graduate students and researchers, with insight into the functioning of marine ecosystems. A carbon centric approach has been adopted, but other elements are included where relevant or needed. The book focuses on concepts and quantitative understanding of primary production, organic matter mineralization and sediment biogeochemistry. The impact of biogeochemical processes on inorganic carbon dynamics and organic matter transformation are also discussed.
Book Synopsis Monitoring Global Ocean Carbon Inventories by : Douglas W. R. Wallace
Download or read book Monitoring Global Ocean Carbon Inventories written by Douglas W. R. Wallace and published by . This book was released on 1995 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Guide to Best Practices for Ocean CO2 Measurements by : Andrew Gilmore Dickson
Download or read book Guide to Best Practices for Ocean CO2 Measurements written by Andrew Gilmore Dickson and published by . This book was released on 2007 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ocean Circulation and Climate by : Toste Tanhua
Download or read book Ocean Circulation and Climate written by Toste Tanhua and published by Elsevier Inc. Chapters. This book was released on 2013-10-22 with total page 69 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon is a fundamental component of all life and its gaseous form, carbon dioxide (CO2), is an important atmospheric regulator of Earth’s climate. Over societally relevant timescales, diverse physical, biological, and chemical processes in the global ocean have a very important role in controlling the exchanges of CO2 with the atmosphere and climate, given that the ocean contains roughly 60 times more carbon than the atmosphere. The complex and dynamic marine carbon cycle is thus a fundamental part and regulator of life on Earth, requiring monitoring of its variability and understanding of the feedbacks to the climate system. This is particularly relevant given that emissions of human produced (anthropogenic) CO2 through fossil fuel and land use changes have led to significant perturbations in the global carbon cycle. A large fraction of emitted anthropogenic carbon (Cant) has been and will be absorbed by the oceans with implications for seawater chemistry, ocean pH levels, and the biological communities contained within. During the last few decades, quantification of the ocean sink of CO2 and its temporal evolution of the marine carbon cycle has been an important driver of marine biogeochemical research. Scientific expeditions such as the World Ocean Circulation Experiment/Joint Global Ocean Flux Study global surveys conducted during the 1990s provided the data for the first global estimates of the uptake and oceanic sink of Cant. More recently, completion of a second global survey of the marine carbon cycle (from 2000 to 2013) provided sufficient data to assess the rate of uptake and storage of Cant within the interior of the global ocean. From this effort, it has become clear that there is substantial regional and temporal variability of the storage rate of Cant and those physico-biogeochemical processes that influence the marine carbon cycle. Here we review seawater carbonate chemistry, the sampling strategies, and networks required to observe variability in the global ocean carbon cycle and the flux of carbon between the ocean and the atmosphere but with a central focus, synthesizing and summarizing available estimates of the ocean uptake and inventories of Cant. This chapter is aimed at a wider audience within the oceanographic community and points to the rich literature on marine carbon cycle research.
Book Synopsis The Ocean Carbon Cycle and Climate by : Mick Follows
Download or read book The Ocean Carbon Cycle and Climate written by Mick Follows and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 401 pages. Available in PDF, EPUB and Kindle. Book excerpt: Our desire to understand the global carbon cycle and its link to the climate system represents a huge challenge. These overarching questions have driven a great deal of scientific endeavour in recent years: What are the basic oceanic mechanisms which control the oceanic carbon reservoirs and the partitioning of carbon between ocean and atmosphere? How do these mechanisms depend on the state of the climate system and how does the carbon cycle feed back on climate? What is the current rate at which fossil fuel carbon dioxide is absorbed by the oceans and how might this change in the future? To begin to answer these questions we must first understand the distribution of carbon in the ocean, its partitioning between different ocean reservoirs (the "solubility" and "biological" pumps of carbon), the mechanisms controlling these reservoirs, and the relationship of the significant physical and biological processes to the physical environment. The recent surveys from the JGOFS and WOCE (Joint Global Ocean Flux Study and World Ocean Circulation Ex periment) programs have given us a first truly global survey of the physical and biogeochemical properties of the ocean. These new, high quality data provide the opportunity to better quantify the present oceans reservoirs of carbon and the changes due to fossil fuel burning. In addition, diverse process studies and time-series observations have clearly revealed the complexity of interactions between nutrient cycles, ecosystems, the carbon-cycle and the physical envi ronment.
Book Synopsis Guide to Best Practices for Ocean Acidification Research and Data Reporting by :
Download or read book Guide to Best Practices for Ocean Acidification Research and Data Reporting written by and published by . This book was released on 2011 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Development and Application of In Situ Marine Inorganic Carbon Sensors by : Philip J. Bresnahan (Jr.)
Download or read book Development and Application of In Situ Marine Inorganic Carbon Sensors written by Philip J. Bresnahan (Jr.) and published by . This book was released on 2015 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ocean's sequestration of anthropogenic carbon dioxide has major consequences for global change. Not only does it temper global warming by removing some of the greenhouse gas from the atmosphere, it also results in ocean acidification through the reaction of CO2 and H2O. While the environmental science community is well aware of these issues at a broad, global level, there are notable gaps in our understanding of changes occurring over smaller spaces and shorter times. This dissertation describes novel tools that are being developed and implemented in order to fill those gaps. Specifically, it focuses on autonomous, in situ systems designed to quantify total dissolved inorganic carbon (the sum of all chemical species formed in seawater directly through the addition of CO2 to H2O) and pH (a measure of the proton concentration in seawater. The first two chapters describe a "Micro-Rosette" for microfluidic quantification of total dissolved inorganic carbon (DIC) from profiling floats. Chapter 1 deals specifically with optimization of a gas diffusion cell, an integral component of any liquid-to-liquid (i.e., seawater to receiving solution) DIC extraction technique. 109 unique combinations of gas diffusion cell geometry, seawater volume, and diffusion time were tested to rigorously determine the optimal conditions needed in order to quantify DIC repeatably. Chapter 2 incorporates these findings and implements a sixteen-sample microfluidic collection manifold such that seawater can be captured and stored as a profiling float ascends from 2000 m to the surface and subsequently analyzed once the float returns to its "park depth" (~1000 m), where it remains for over a week. Chapter 1 achieves better than 0.2% repeatability in DIC measurements; the multiplexed collection and analysis in Chapter 2 attains 1%. Chapters 3 and 4 pertain to in situ measurement of seawater pH with the Honeywell Durafet. Well over 100 packages implementing the Durafet have been deployed globally; Chapter 3 lays out best practices for utilizing those packages and validating the resulting data by comparing sensor results to discrete samples and thermodynamically and empirically-derived pH values. Chapter 4 illustrates the use of a Durafet packaged specifically for mobile platforms and surface pH mapping applications.
Book Synopsis Ocean Acidification by : National Research Council
Download or read book Ocean Acidification written by National Research Council and published by National Academies Press. This book was released on 2010-10-14 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ocean has absorbed a significant portion of all human-made carbon dioxide emissions. This benefits human society by moderating the rate of climate change, but also causes unprecedented changes to ocean chemistry. Carbon dioxide taken up by the ocean decreases the pH of the water and leads to a suite of chemical changes collectively known as ocean acidification. The long term consequences of ocean acidification are not known, but are expected to result in changes to many ecosystems and the services they provide to society. Ocean Acidification: A National Strategy to Meet the Challenges of a Changing Ocean reviews the current state of knowledge, explores gaps in understanding, and identifies several key findings. Like climate change, ocean acidification is a growing global problem that will intensify with continued CO2 emissions and has the potential to change marine ecosystems and affect benefits to society. The federal government has taken positive initial steps by developing a national ocean acidification program, but more information is needed to fully understand and address the threat that ocean acidification may pose to marine ecosystems and the services they provide. In addition, a global observation network of chemical and biological sensors is needed to monitor changes in ocean conditions attributable to acidification.
Book Synopsis Capturing Dynamics of Marine Inorganic Carbon Fluxes from Diurnal to Decadal Timescales by : Sophie N. Chu
Download or read book Capturing Dynamics of Marine Inorganic Carbon Fluxes from Diurnal to Decadal Timescales written by Sophie N. Chu and published by . This book was released on 2017 with total page 163 pages. Available in PDF, EPUB and Kindle. Book excerpt: The marine carbon cycle plays an important role in regulating Earth's climate. The vastness of the open ocean and the large variability in the coastal ocean provide obstacles to accurately quantify storage and transport of inorganic carbon within marine ecosystems and between marine and other earth systems. Thus far, the open ocean has been the only true net sink of anthropogenic carbon dioxide (Canthro) emissions. However, ocean storage of Canthro is not uniformly distributed. Changes in water chemistry in the Northeast Pacific were quantified to estimate the amount of Canthro stored in this region over the last decade. This additional Canthro was found to cause acidification and aragonite saturation horizon shoaling at rates towards the higher end of those found in Pacific and Atlantic Ocean basins, making the Northeast Pacific one of the most sensitive regions to the invasion of anthropogenic carbon dioxide. Due to large variability in biogeochemical signals in coastal oceans, it is challenging to accurately assess carbon fluxes across different boundaries, such as tidal exchange between coastal wetlands and coastal oceans. Coastal salt marshes have been suggested to be a large net CO2 sink, thus designated as a type of "blue carbon." However, accurate and dynamic estimates of carbon fluxes to and from tidal marshes are still premature, particularly carbon fluxes from marshes to the coastal ocean via tidal exchange, often referred to as marsh lateral fluxes. In this thesis, lateral total alkalinity (TA) and dissolved inorganic carbon (DIC) export fluxes were realistically quantified using high frequency time-series, in situ data. High-resolution fluxes permitted a closer look at how marsh generated TA and DIC are being exported over diurnal, spring-neap, and seasonal scales. I investigated the best way to capture variability of marsh exports via traditional bottle sampling and assessed uncertainties associated with different sampling strategies. Marsh TA and DIC exports significantly modified buffering capacity of coastal waters. This work contains the first realistic estimate of TA exports from a tidal salt marsh. Accurate estimates of DIC and TA fluxes indicate the significance of salt marshes to the coastal carbon and alkalinity budgets.
Book Synopsis Oceanobs'19: An Ocean of Opportunity. Volume I by : Tong Lee
Download or read book Oceanobs'19: An Ocean of Opportunity. Volume I written by Tong Lee and published by Frontiers Media SA. This book was released on 2020-12-31 with total page 783 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Book Synopsis Science in brief: OMAI – Assessing acidification in the Baltic Sea: Monitoring and scientific basis by : Gustafsson, Erik
Download or read book Science in brief: OMAI – Assessing acidification in the Baltic Sea: Monitoring and scientific basis written by Gustafsson, Erik and published by Nordic Council of Ministers. This book was released on 2021-03-11 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt: Available online: https://pub.norden.org/temanord2021-512/ Anthropogenic CO2 emissions will – unless reduced – move the Baltic Sea towards a state where acidification leads to changes in species composition, potentially influencing ecosystem functioning. Model simulations indicate that acidification in the Baltic Sea generally follows the same trajectory as the open oceans, with a pH decline of 0.6 units by year 2200 in the worst-case scenario. The Baltic Sea is highly influenced by its catchment areas, which means that acidification trends are generally more complex than in the open ocean. Improved coverage of acidification monitoring is necessary to broaden the understanding of current trends, improve the capacity to predict future changes, and as an added value provide insight into productivity patterns and eutrophication trends. An indicator for acidification in the Baltic Sea is currently under development.
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309466806 Total Pages :151 pages Book Rating :4.3/5 (94 download)
Book Synopsis Sustaining Ocean Observations to Understand Future Changes in Earth's Climate by : National Academies of Sciences, Engineering, and Medicine
Download or read book Sustaining Ocean Observations to Understand Future Changes in Earth's Climate written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2018-01-20 with total page 151 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ocean is an integral component of the Earth's climate system. It covers about 70% of the Earth's surface and acts as its primary reservoir of heat and carbon, absorbing over 90% of the surplus heat and about 30% of the carbon dioxide associated with human activities, and receiving close to 100% of fresh water lost from land ice. With the accumulation of greenhouse gases in the atmosphere, notably carbon dioxide from fossil fuel combustion, the Earth's climate is now changing more rapidly than at any time since the advent of human societies. Society will increasingly face complex decisions about how to mitigate the adverse impacts of climate change such as droughts, sea-level rise, ocean acidification, species loss, changes to growing seasons, and stronger and possibly more frequent storms. Observations play a foundational role in documenting the state and variability of components of the climate system and facilitating climate prediction and scenario development. Regular and consistent collection of ocean observations over decades to centuries would monitor the Earth's main reservoirs of heat, carbon dioxide, and water and provides a critical record of long-term change and variability over multiple time scales. Sustained high-quality observations are also needed to test and improve climate models, which provide insights into the future climate system. Sustaining Ocean Observations to Understand Future Changes in Earth's Climate considers processes for identifying priority ocean observations that will improve understanding of the Earth's climate processes, and the challenges associated with sustaining these observations over long timeframes.
Book Synopsis Oceanobs'19: An Ocean of Opportunity. Volume II by : Tong Lee
Download or read book Oceanobs'19: An Ocean of Opportunity. Volume II written by Tong Lee and published by Frontiers Media SA. This book was released on 2020-12-31 with total page 629 pages. Available in PDF, EPUB and Kindle. Book excerpt: This eBook is a collection of articles from a Frontiers Research Topic. Frontiers Research Topics are very popular trademarks of the Frontiers Journals Series: they are collections of at least ten articles, all centered on a particular subject. With their unique mix of varied contributions from Original Research to Review Articles, Frontiers Research Topics unify the most influential researchers, the latest key findings and historical advances in a hot research area! Find out more on how to host your own Frontiers Research Topic or contribute to one as an author by contacting the Frontiers Editorial Office: frontiersin.org/about/contact.
Book Synopsis Marine Science & Technology in China: A Roadmap to 2050 by : Jianhai Xiang
Download or read book Marine Science & Technology in China: A Roadmap to 2050 written by Jianhai Xiang and published by Springer Science & Business Media. This book was released on 2010-08-04 with total page 203 pages. Available in PDF, EPUB and Kindle. Book excerpt: As one of the eighteen field-specific reports comprising the comprehensive scope of the strategic general report of the Chinese Academy of Sciences, this sub-report addresses long-range planning for developing science and technology in the field of marine science. They each craft a roadmap for their sphere of development to 2050. In their entirety, the general and sub-group reports analyze the evolution and laws governing the development of science and technology, describe the decisive impact of science and technology on the modernization process, predict that the world is on the eve of an impending S&T revolution, and call for China to be fully prepared for this new round of S&T advancement. Based on the detailed study of the demands on S&T innovation in China's modernization, the reports draw a framework for eight basic and strategic systems of socio-economic development with the support of science and technology, work out China's S&T roadmaps for the relevant eight basic and strategic systems in line with China's reality, further detail S&T initiatives of strategic importance to China's modernization, and provide S&T decision-makers with comprehensive consultations for the development of S&T innovation consistent with China's reality. Supported by illustrations and tables of data, the reports provide researchers, government officials and entrepreneurs with guidance concerning research directions, the planning process, and investment. Founded in 1949, the Chinese Academy of Sciences is the nation's highest academic institution in natural sciences. Its major responsibilities are to conduct research in basic and technological sciences, to undertake nationwide integrated surveys on natural resources and ecological environment, to provide the country with scientific data and consultations for government's decision-making, to undertake government-assigned projects with regard to key S&T problems in the process of socio-economic development, to initiate personnel training, and to promote China's high-tech enterprises through its active engagement in these areas.
Book Synopsis Determination of In-situ Dissolved Inorganic Carbon and Alkalinity in Marine Sedimentary Interstitial Water by : Justine Sauvage
Download or read book Determination of In-situ Dissolved Inorganic Carbon and Alkalinity in Marine Sedimentary Interstitial Water written by Justine Sauvage and published by . This book was released on 2013 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
