3 edition of Effects of solar ultraviolet radiation on biogeochemical dynamics in aquatic environments found in the catalog.
Effects of solar ultraviolet radiation on biogeochemical dynamics in aquatic environments
This workshop assembled a diverse group of experts, including atmospheric chemists and physicists and aquatic chemists, biochemists and biologists to address the possible ramifcations of changing Ultraviolet levels on biogeochemical dynamics of aquatic environments.
|Statement||edited by N.V. Blough and R.G. Zepp.|
|Series||WHOI -- 90-09., Technical report (Woods Hole Oceanographic Institution), WHOI (Series) -- 90-09.|
|Contributions||Blough, N. V., Zepp, Richard G., United States. Environmental Protection Agency., United States. Office of Naval Research.|
|The Physical Object|
|Pagination||vi, 194 p. :|
|Number of Pages||194|
CDOM can mitigate the damaging effect of solar UV radiation in the aquatic system, while its loss due to photo-oxidation can decrease absorptivity in the UV and visible spectral regions. In the visible range of the electromagnetic spectrum, CDOM absorption can reduce the amount of photosynthetically active radiation (PAR) available to theCited by: Start studying ABC's of Environmental Science. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Search. Ultraviolet radiation Causes of ozone depletion Effects of ozone depletion Maintaining water quality Water purification Sewage treatment/ septic systems Clean Water .
Effects of stratospheric ozone depletion, solar UV radiation, and climate change on biogeochemical cycling: interactions and feedbacks. Photochemical & Photobiological Sciences , 14 (1), DOI: / by: In June, maximum mean solar radiation at sea level was W m-2 of visible ( to nm) and 15 W m-' of UV radiation ( to nm), and decreased gradually until the end of the summer. In spite of incident irradiance, levels were low In cornpanson with other latitudes, and UV radiation stress on growth of Arctic macroalgae was evident.
absorption of ultraviolet solar energy. Although maximum ozone concentration occurs at 25km, the lower air density at 50km allows solar energy to heat up temperature there at a much greater degree. Also, much solar energy is absorbed in the upper stratosphere . Changes in the ozone layer over the past two decades have resulted in increases in solar ultraviolet (UV) radiation that reaches the surface of aquatic environments. Recent studies have demonstrated that these UV increases cause changes in photochemical reactions that affect the environmental cycling of carbon, oxygen, sulfur, and various trace metals in the aquatic environment.
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Moffett, J. W.,Chemical reactions affected by UV irradiation in the oceans and their influence on primary productivity: Some general considerations, in: Effects of Solar Ultraviolet Radiation on Biogeochemical Dynamics in Aquatic Environments, WHOI, Woods Hole Oceanographic Institution, Woods Hole, pp.
68–Cited by: Hader, D.-P, UV-B and Aquatic Ecosystems, in UV-B and Biosphere, edited by J Rozema, W. C Gieskes, S. van de Geijn, C. Nolan, and H de Boois, pp.Kluwer Academic Publishers, Dordrecht, Boston and London (b) Hader, D.-P, Stratospheric Ozone Depletion and Increase in Ultraviolet Radiation, in The Effects of Ozone Depletion on Cited by: 3.
Aquatic ecosystems As in the case of terrestrial ecosystems, considerable new field and laboratory research has been conducted on the UV-B \ effects of UV radiation on aquatic biogeochemical cycles since the last report.
Research has continued on UV effects on aquatic capture and storage, mineral nutrient cycling, and water-air trace-gas by: Changes in CDOM influence the penetration of UV radiation into water bodies with major consequences for aquatic biogeochemical processes.
Changes in aquatic primary productivity and decomposition due to climate-related changes in circulation and nutrient supply occur concurrently with exposure to increased UV-B radiation, and have synergistic effects on the penetration of light into aquatic by: Effects of solar UV radiation on aquatic ecosystems and interactions with climate change 98 The Environmental Effects Assessment Panel Report for bacterioplankton This increases the UV transparency of the water column35 where the resulting deeper UV-B penetration affects bacteria and other organisms In addition,File Size: KB.
Effects of solar ultraviolet radiation on biogeochemical dynamics in aquatic environments: report of a workshop, Marine Biological Laboratory, Woods Hole, Massachusetts, October Blough, Neil V.
; Zepp, R. (Woods Hole Oceanographic Institution, ). At the same time, decreased UV radiation in such surface waters reduces the capacity of solar UV radiation to inactivate viruses and other pathogens and parasites, and increases the difficulty and. Solar UV radiation penetrates to ecological signiﬁcant depths in aquatic systems and can affect both marine and freshwater systems from major biomass producers (phytoplankton) to consumers (e.g., zooplankton, ﬁsh,etc.) higher in the food web.
The effects of changes in solar UV-B on long-term carbon storage remain unclear. However, UV-B influences short-term carbon turn- over from plant litter (dead plant material) in terrestrial systems, and dissolved organic matter (DOM) and particulate organic matter (POM) in aquatic systems.
We estimate the change at this time in the output of solar ultraviolet (UV) radiation at wavelengths from to nm, relative to contemporary observations. Since this portion of the solar UV spectrum determines ozone composition in the stratosphere, our results bear on the historical variability of ozone and its potential climatic by: Solar UV radiation, climate and other drivers of global change are undergoing significant changes and models forecast that these changes will continue for the remainder of this century.
Here we assess the effects of solar UV radiation on biogeochemical cycles and the interactions of these effects with climat Environmental effects of ozone depletion and its interactions with climate change.
Effects of solar ultraviolet radiation on biogeochemical dynamics in aquatic environments: report of a workshop, Marine Biological Laboratory, Woods Hole, Massachusetts, October/ By Richard G Zepp, N. (Neil V.) Blough, United States. Effects of solar ultraviolet radiation on biogeochemical dynamics in aquatic environments: report of a workshop, Marine Biological Laboratory, Woods Hole, Massachusetts, October/ (Woods Hole, Mass.: Woods Hole Oceanographic Institution, ), by Richard G Zepp, N.
Blough, United States. Office of Naval Research, and United. Damaging effects of ultraviolet radiation on the aquatic biota, related to anthropogenic modifications in the ozone layer, have been extensively described. The effects of predicted changes in climate and solar UV radiation on carbon cycling in terrestrial and aquatic ecosystems are expected to vary significantly between regions.
The balance of positive and negative effects on terrestrial carbon cycling remains uncertain, but the interactions between UV radiation and climate change are likely to contribute to decreasing sink strength in many oceanic Cited by: Abstract.
Increases in ultraviolet radiation (UVR) and CO 2 affect phytoplankton growth and mortality in a variety of different ways. However, in situ responses of natural phytoplankton communities to climate change, as well as its effects on phytoplankton annual cycles, are still largely unknown.
Although temperature and UVR have been increasing in temperate latitudes during winter, Cited by: UV exposure did not affect the decomposition of the lignin fraction. Increased decomposition with UV radiation was accompanied by a decrease in N immobilization over the summer months.
These results suggest that the effects of UV radiation on decomposition rates may be primarily abiotic, caused by direct photochemical degradation of the litter.
We examined the effect of solar ultraviolet radiation B (UVB, nm) on photosynthesis of natural phytoplankton assemblages in the temperate Changjiang River Estuary (CRE) in the East China Sea (ECS), and the subtropical Zhujiang River Estuary (ZRE) in the South China Sea (SCS) from August to April The.
Sunda, W. G., and Huntsman, S. () Effects of Sunlight and Anthropogenic Alterations in Atmospheric Solar Attenuation on Manganese Redox Cycles in Surface Seawater, in Effects of Solar Ultraviolet Radiation on Biogeochemical Dynamics in Aquatic Environments (N. Blough and R.
Zepp, Eds.), Woods Hole Oceanographic Institution Cited by: 1 Introduction. With the recent evidence of significantly decreasing concentrations of ozone in the stratosphere and the concomitant increase in ultraviolet B radiation (UVB) for north and south temperate latitudes [1,2], many studies have stressed the effects of UV on marine phytoplankton and primary production .Briefly, UV has been shown to have deleterious effects on photo-autotrophs Cited by:.
Effects of stratospheric ozone depletion, solar UV radiation, and climate change on biogeochemical cycling: interactions and feedbacks. Photochemical & Photobiological Sciences14 (1), DOI: /C4PPG.
Hind A. by: Blough, N. V. & Zepp, R. G. (eds) Effects of Solar Ultraviolet Radiation of Biogeochemical Dynamics in Aquatic Environments (Woods Hole Oceanographic Institution Techn. Rep. 90–09, Massachusetts Cited by: Solar ultraviolet (UV) radiation is a key factor controlling the habitability of planetary surface environments and regulating the course of life’s by: 8.