Aquatic Organic Matter Fluorescence
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Aquatic Organic Matter Fluorescence
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Author : Paula G. Coble
language : en
Publisher: Cambridge University Press
Release Date : 2014-07-14
Aquatic Organic Matter Fluorescence written by Paula G. Coble and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-07-14 with Science categories.
A core text on principles, laboratory/field methodologies, and data interpretation for fluorescence applications in aquatic science, for advanced students and researchers.
Linking Optical And Chemical Properties Of Dissolved Organic Matter In Natural Waters
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Author : Christopher L. Osburn
language : en
Publisher: Frontiers Media SA
Release Date : 2017-01-17
Linking Optical And Chemical Properties Of Dissolved Organic Matter In Natural Waters written by Christopher L. Osburn and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-01-17 with Electronic book categories.
A substantial increase in the number of studies using the optical properties (absorbance and fluorescence) of dissolved organic matter (DOM) as a proxy for its chemical properties in estuaries and the coastal and open ocean has occurred during the last decade. We are making progress on finding the actual chemical compounds or phenomena responsible for DOM’s optical properties. Ultrahigh resolution mass spectrometry, in particular, has made important progress in making the key connections between optics and chemistry. But serious questions remain and the last major special issue on DOM optics and chemistry occurred nearly 10 years ago. Controversies remain from the non-specific optical properties of DOM that are not linked to discrete sources, and sometimes provide conflicting information. The use of optics, which is relatively easier to employ in synoptic and high resolution sampling to determine chemistry, is a critical connection to make and can lead to major advances in our understanding of organic matter cycling in all aquatic ecosystems. The contentions and controversies raised by our poor understanding of the linkages between optics and chemistry of DOM are bottlenecks that need to be addressed and overcome.
Aquatic Ecosystems Interactivity Of Dissolved Organic Matter
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Author : Stuart Findlay
language : en
Publisher: Academic Press
Release Date : 2003
Aquatic Ecosystems Interactivity Of Dissolved Organic Matter written by Stuart Findlay and has been published by Academic Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Nature categories.
Overviews of the source, supply and variability of DOM, surveys of the processes that mediate inputs to microbial food webs, and syntheses consolidating research findings provide a comprehensive review of what is known of DOM in freshwater. This book will be important to anyone interested in understanding the fundamental factors associated with DOM that control aquatic ecosystems."--BOOK JACKET.
Natural Organic Matter In The Aquatic Environment
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Author : K. J. Hall
language : en
Publisher:
Release Date : 1970
Natural Organic Matter In The Aquatic Environment written by K. J. Hall and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1970 with Lake hydrology categories.
Microbial Utilization And Transformation Of Dissolved Organic Matter In Aquatic Environments From Streams To The Deep Ocean
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Author : Johanna Sjöstedt
language : en
Publisher: Frontiers Media SA
Release Date : 2021-07-28
Microbial Utilization And Transformation Of Dissolved Organic Matter In Aquatic Environments From Streams To The Deep Ocean written by Johanna Sjöstedt and has been published by Frontiers Media SA this book supported file pdf, txt, epub, kindle and other format this book has been release on 2021-07-28 with Science categories.
Photobiogeochemistry Of Organic Matter
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Author : Khan M.G. Mostofa
language : en
Publisher: Springer Science & Business Media
Release Date : 2012-12-15
Photobiogeochemistry Of Organic Matter written by Khan M.G. Mostofa and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2012-12-15 with Science categories.
Photoinduced processes, caused by natural sunlight, are key functions for sustaining all living organisms through production and transformation of organic matter (OM) in the biosphere. Production of hydrogen peroxide (H2O2) from OM is a primary step of photoinduced processes, because H2O2 acts as strong reductant and oxidant. It is potentially important in many aquatic reactions, also in association with photosynthesis. Allochthonous and autochthonous dissolved organic matter (DOM) can be involved into several photoinduced or biological processes. DOM subsequently undergoes several physical, chemical, photoinduced and biological processes, which can be affected by global warming. This book is uniquely structured to overview some vital issues, such as: DOM; H2O2 and ROOH; HO•; Degradation of DOM; CDOM, FDOM; Photosynthesis; Chlorophyll; Metal complexation, and Global warming, as well as their mutual interrelationships, based on updated scientific results.
Linking Optical And Chemical Properties Of Dissolved Organic Matter In Natural Waters
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Author :
language : en
Publisher:
Release Date : 2017
Linking Optical And Chemical Properties Of Dissolved Organic Matter In Natural Waters written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017 with categories.
A substantial increase in the number of studies using the optical properties (absorbance and fluorescence) of dissolved organic matter (DOM) as a proxy for its chemical properties in estuaries and the coastal and open ocean has occurred during the last decade. We are making progress on finding the actual chemical compounds or phenomena responsible for DOM's optical properties. Ultrahigh resolution mass spectrometry, in particular, has made important progress in making the key connections between optics and chemistry. But serious questions remain and the last major special issue on DOM optics and chemistry occurred nearly 10 years ago. Controversies remain from the non-specific optical properties of DOM that are not linked to discrete sources, and sometimes provide conflicting information. The use of optics, which is relatively easier to employ in synoptic and high resolution sampling to determine chemistry, is a critical connection to make and can lead to major advances in our understanding of organic matter cycling in all aquatic ecosystems. The contentions and controversies raised by our poor understanding of the linkages between optics and chemistry of DOM are bottlenecks that need to be addressed and overcome.
The Ethiopian Church
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Author :
language : en
Publisher:
Release Date : 197?
The Ethiopian Church written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 197? with Ethiopia categories.
Characterization Of Natural Organic Matter In Drinking Water
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Author : Jean-Phillipe Croue
language : en
Publisher: American Water Works Association
Release Date : 2000
Characterization Of Natural Organic Matter In Drinking Water written by Jean-Phillipe Croue and has been published by American Water Works Association this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with Drinking water categories.
The research reported on here sought to characterize natural organic matter (NOM) in dilute solutions and to isolate it without altering its properties, so that the effect of NOM in drinking water may be considered. Several NOM isolation methods were evaluated, including evaporation, reverse osmosis, nanofiltration, and adsorption. The effects of such isolation procedures on NOM's chemical composition and reactivity were considered. Based on these studies, the report presents conclusions regarding the feasibility and adequacy of in situ and ex situ techniques. Croue is affiliated with Laboratoire de Chimie de l'Eau de l'Environment, Universite de Poiters. Annotation copyrighted by Book News, Inc., Portland, OR.
Encyclopedia Of Geochemistry
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Author : William M. White
language : en
Publisher: Springer
Release Date : 2018-07-24
Encyclopedia Of Geochemistry written by William M. White and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-24 with Science categories.
The Encyclopedia is a complete and authoritative reference work for this rapidly evolving field. Over 200 international scientists, each experts in their specialties, have written over 330 separate topics on different aspects of geochemistry including geochemical thermodynamics and kinetics, isotope and organic geochemistry, meteorites and cosmochemistry, the carbon cycle and climate, trace elements, geochemistry of high and low temperature processes, and ore deposition, to name just a few. The geochemical behavior of the elements is described as is the state of the art in analytical geochemistry. Each topic incorporates cross-referencing to related articles, and also has its own reference list to lead the reader to the essential articles within the published literature. The entries are arranged alphabetically, for easy access, and the subject and citation indices are comprehensive and extensive. Geochemistry applies chemical techniques and approaches to understanding the Earth and how it works. It touches upon almost every aspect of earth science, ranging from applied topics such as the search for energy and mineral resources, environmental pollution, and climate change to more basic questions such as the Earth’s origin and composition, the origin and evolution of life, rock weathering and metamorphism, and the pattern of ocean and mantle circulation. Geochemistry allows us to assign absolute ages to events in Earth’s history, to trace the flow of ocean water both now and in the past, trace sediments into subduction zones and arc volcanoes, and trace petroleum to its source rock and ultimately the environment in which it formed. The earliest of evidence of life is chemical and isotopic traces, not fossils, preserved in rocks. Geochemistry has allowed us to unravel the history of the ice ages and thereby deduce their cause. Geochemistry allows us to determine the swings in Earth’s surface temperatures during the ice ages, determine the temperatures and pressures at which rocks have been metamorphosed, and the rates at which ancient magma chambers cooled and crystallized. The field has grown rapidly more sophisticated, in both analytical techniques that can determine elemental concentrations or isotope ratios with exquisite precision and in computational modeling on scales ranging from atomic to planetary.