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GESAMP - Reports and Studies, 97. The magnitude and impacts of anthropogenic atmospheric nitrogen inputs to the ocean
World Meteorological Organization (WMO) ; Food and Agriculture Organization (FAO); United Nations Educational, Scientific and Cultural Organization (UNESCO); et al. - WMO, 2018The present global modelling study of the Nr atmospheric cycle and Nr deposition to the ocean is the first that evaluates past, present and future Nr atmospheric deposition accounting for ON primary sources as well as for secondary ON chemical formation as a N-dependent process. While the total Nr deposition to the ocean is not expected to change significantly by 2050, the relative importance of oxidized and reduced N is expected to change, with an increasing proportion of ammonium compared to nitrate, resulting from more efficient controls on terrestrial emissions of nitrogen oxides (NOx) com ...
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World Meteorological Organization (WMO) ; Food and Agriculture Organization (Rome, Italia) ; United Nations Educational, Scientific and Cultural Organization ; United Nations Environment Programme ; International Maritime Organization ; United Nations Development Programme ; International Atomic Energy Agency (Vienna, Austria)
Published by: WMO ; 2018The present global modelling study of the Nr atmospheric cycle and Nr deposition to the ocean is the first that evaluates past, present and future Nr atmospheric deposition accounting for ON primary sources as well as for secondary ON chemical formation as a N-dependent process. While the total Nr deposition to the ocean is not expected to change significantly by 2050, the relative importance of oxidized and reduced N is expected to change, with an increasing proportion of ammonium compared to nitrate, resulting from more efficient controls on terrestrial emissions of nitrogen oxides (NOx) compared to ammonia. This would result in a change in the acidity of the atmospheric deposition.
Collection(s) and Series: GESAMP - Reports and Studies- No. 97
Language(s): English
Format: Digital (Free)Tags: Oceans ; Water pollution ; Marine environment ; Nitrogen (N2) ; GAW Report No. 238
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GAW Report, 203. The Atmospheric Input of Chemicals to the Ocean
World Meteorological Organization (WMO) ; International Maritime Organization (IMO); Food and Agriculture Organization (FAO); et al. - WMO, 2012The atmospheric input of chemicals to the ocean is closely related to a number of important global change issues. The increasing input of atmospheric anthropogenic nitrogen species to much of the ocean may cause a low level fertilization of the ocean that could result in an increase in marine 'new' productivity of up to ~3% and thus impact carbon drawdown from the atmosphere. However, the increase in nitrogen inputs are also likely to increase the formation of nitrous oxide in the ocean. The increased emission of this powerful greenhouse gas will partially offset the climate forcing impact res ...
World Meteorological Organization (WMO) ; International Maritime Organization ; Food and Agriculture Organization (Rome, Italia) ; United Nations Educational, Scientific and Cultural Organization ; Intergovernmental Oceanographic Commission ; International Atomic Energy Agency (Vienna, Austria) ; United Nations ; United Nations Environment Programme ; United Nations Development Programme
Published by: WMO ; 2012The atmospheric input of chemicals to the ocean is closely related to a number of important global change issues. The increasing input of atmospheric anthropogenic nitrogen species to much of the ocean may cause a low level fertilization of the ocean that could result in an increase in marine 'new' productivity of up to ~3% and thus impact carbon drawdown from the atmosphere. However, the increase in nitrogen inputs are also likely to increase the formation of nitrous oxide in the ocean. The increased emission of this powerful greenhouse gas will partially offset the climate forcing impact resulting from the increase in carbon dioxide drawdown produced by N fertilization. Similarly, much of the oceanic iron, which is a limiting nutrient in many areas of the ocean, originates from the atmospheric input of minerals as a result of the long-range transport of mineral dust from continental regions. The increased supply of soluble phosphorus from atmospheric anthropogenic sources (through large-scale use in fertilizers) may also have a significant impact on surface-ocean biogeochemistry, but estimates are highly uncertain. While it is possible that the inputs of sulphur and nitrogen oxides from the atmosphere can add to the rates of ocean acidification occurring due to rising levels of carbon dioxide, there is too little information on these processes to assess the potential impact. These inputs may be particularly critical in heavily trafficked shipping lanes and in ocean regions proximate to highly industrialized land areas. Other atmospheric substances may also have an impact on the ocean, in particular lead, cadmium, and POPs. GESAMP initiated Working Group 38, The Atmospheric Input of Chemicals to the Ocean, to address these issues.
Collection(s) and Series: GAW Report- No. 203
Language(s): English
Format: Digital (Free), Hard copyTags: Oceans ; Atmospheric chemistry ; Ocean-atmosphere interaction ; Global Atmosphere Watch Programme (GAW) ; GESAMP 84
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A blueprint for ocean and coastal sustainability : an inter-agency paper towards the preparation of the UN Conference on Sustainable Development (Rio+20)
UNESCO, 2011The Blueprint provides an overview of the threats faced by the oceans, including unsustainable use, deforestation of mangroves, disappearance of coral reefs, ocean acidification and climate change. It further highlights the role of oceans in regulating the climate, contributing to food security and sustaining livelihoods.
A blueprint for ocean and coastal sustainability: an inter-agency paper towards the preparation of the UN Conference on Sustainable Development (Rio+20)
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Available online: http://www.unesco.org/new/fileadmin/MULTIMEDIA/HQ/SC/pdf/interagency_blue_paper_ [...]
United Nations Educational, Scientific and Cultural Organization ; Intergovernmental Oceanographic Commission ; Food and Agriculture Organization (Rome, Italia) ; United Nations Development Programme ; International Maritime Organization
Published by: UNESCO ; 2011The Blueprint provides an overview of the threats faced by the oceans, including unsustainable use, deforestation of mangroves, disappearance of coral reefs, ocean acidification and climate change. It further highlights the role of oceans in regulating the climate, contributing to food security and sustaining livelihoods.
Language(s): English
Format: Digital (Free) (ill.)Tags: Oceans ; Climate change ; Oceans acidification ; Water pollution ; Environmental degradation
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Pollution in the open oceans: a review of assessments and related studies
World Meteorological Organization (WMO) ; Joint Group of Experts on the Scientific Aspects of Marine Environmental Protection (GESAMP); United Nations Environment Programme (UNEP); et al. - GESAMP, 2009
World Meteorological Organization (WMO) ; Joint Group of Experts on the Scientific Aspects of Marine Environmental Protection ; United Nations Environment Programme ; Food and Agriculture Organization (Rome, Italia) ; United Nations Educational, Scientific and Cultural Organization ; Intergovernmental Oceanographic Commission ; United Nations Industrial Development Organization ; International Maritime Organization ; International Atomic Energy Agency (Vienna, Austria) ; United Nations
Published by: GESAMP ; 2009Language(s): English
Format: Digital (Free)ISBN (or other code): 978-92-807-2996-2
Tags: Oceans ; Marine environment ; Water pollution ; Case/ Case study
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IMO News
International Maritime Organization (IMO), 1998-[...]IMO News, the official magazine of the International Maritime Organization (IMO), gives full coverage of an organization which, from a technical point of view, makes a greater
impact upon ships, shipbuilding, ship operation, marine equipment, security, the marine environment and other aspects of the industry.
[serial] See available issues Search in serial
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Available online: http://www.imo.org/en/MediaCentre/MaritimeNewsMagazine/Pages/Home.aspx
Published by: International Maritime Organization (IMO)
IMO News, the official magazine of the International Maritime Organization (IMO), gives full coverage of an organization which, from a technical point of view, makes a greater
impact upon ships, shipbuilding, ship operation, marine equipment, security, the marine environment and other aspects of the industry.Language(s): English
Format: Digital (Free)
Archives access: 1998-[...]
Frequency: 4 issues a yearTags: Oceans ; Oceanography ; Water environment ; ~e-Journals
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