Academic literature on the topic 'Volcanic effects'

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Journal articles on the topic "Volcanic effects"

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Schmidt, Anja, and Benjamin A. Black. "Reckoning with the Rocky Relationship Between Eruption Size and Climate Response: Toward a Volcano-Climate Index." Annual Review of Earth and Planetary Sciences 50, no. 1 (2022): 627–61. http://dx.doi.org/10.1146/annurev-earth-080921-052816.

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Volcanic eruptions impact climate, subtly and profoundly. The size of an eruption is only loosely correlated with the severity of its climate effects, which can include changes in surface temperature, ozone levels, stratospheric dynamics, precipitation, and ocean circulation. We review the processes—in magma chambers, eruption columns, and the oceans, biosphere, and atmosphere—that mediate the climate response to an eruption. A complex relationship between eruption size, style, duration, and the subsequent severity of the climate response emerges. We advocate for a new, consistent metric, the
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Tsatsanifos, C., V. Kontogianni, and S. Stiros. "Tunneling and other engineering works in volcanic environments: Sousaki and Thessaly." Bulletin of the Geological Society of Greece 40, no. 4 (2007): 1733. http://dx.doi.org/10.12681/bgsg.17102.

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This study is inspired by the impacts on a tunnel of the Sousaki volcano, in the vicinity of Corinth and examines possible impacts of the Quaternary volcanism on major engineering works in Thessaly. The Sousaki volcano, at the NW edge of the Aegean Volcanic Arc has been associated with important volcanic activity in the past, but its current activity is confined to géothermie phenomena. A tunnel for the new Athens-Corinth High Speed Rail was excavated through the solfatara of the volcano, an area characterized by numerous faults and physical cavities. High temperatures and geothermal gases rel
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Ibáñez, Jesús M., Ignacio Castro-Melgar, Ornella Cocina, et al. "First 2-D intrinsic and scattering attenuation images of Mt Etna volcano and surrounding region from active seismic data." Geophysical Journal International 220, no. 1 (2019): 267–77. http://dx.doi.org/10.1093/gji/ggz450.

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SUMMARY We present 2-D attenuation images of the Mt Etna volcanic region on the basis of separation of intrinsic and scattering effects. The analysis presented here exploits a large active seismic database that fully covers the area under study. We observe that scattering effects dominate over intrinsic attenuation, suggesting that the region is very heterogeneous. Comparison with analyses conducted at other volcanoes reveals that the Mt Etna region is characterized by high intrinsic attenuation, resulting from the presence of large volcanoclastic deposits at shallow depth. The 2-D distributio
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Benavides-Cordoba, Vicente, Andres Suarez, Diana Guerrero-Jaramillo, Melissa Silva-Medina, Jhonatan Betancourt-Peña, and Mauricio Palacios-Gómez. "Respiratory and physical health consequences in older adults in a high-risk volcanic area: Comparison of two rural villages." PLOS ONE 19, no. 9 (2024): e0310659. http://dx.doi.org/10.1371/journal.pone.0310659.

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Introduction Volcanism is an important natural producer of pollution that impacts health and the quality of the environment. Lung changes caused by exposure to volcanoes have been previously studied. However, limited information exists regarding the effects of prolonged exposure to volcanic compounds. So, this study aimed to analyze the pulmonary effects and stress tolerance in older adults for chronic exposure to the volcanic ashes of the Galeras volcano. Methods A descriptive cross-sectional study of association included rural inhabitants aged over 60 years from Genoy, a village located in a
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Bredemeyer, Stefan, Franz-Georg Ulmer, Thor Hansteen, and Thomas Walter. "Radar Path Delay Effects in Volcanic Gas Plumes: The Case of Láscar Volcano, Northern Chile." Remote Sensing 10, no. 10 (2018): 1514. http://dx.doi.org/10.3390/rs10101514.

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Modern volcano monitoring commonly involves Interferometric Synthetic Aperture Radar (InSAR) measurements to identify ground motions caused by volcanic activity. However, InSAR is largely affected by changes in atmospheric refractivity, in particular by changes which can be attributed to the distribution of water (H2O) vapor in the atmospheric column. Gas emissions from continuously degassing volcanoes contain abundant water vapor and thus produce variations in the atmospheric water vapor content above and downwind of the volcano, which are notably well captured by short-wavelength X-band SAR
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Toman, Ivan, David Brčić, and Serdjo Kos. "Contribution to the Research of the Effects of Etna Volcano Activity on the Features of the Ionospheric Total Electron Content Behaviour." Remote Sensing 13, no. 5 (2021): 1006. http://dx.doi.org/10.3390/rs13051006.

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This research represents a contribution to the theory on the coupling of the volcanic activity and the ionospheric dynamics, represented by total electron content (TEC) patterns and their behaviour. The ionospheric response to the activity of the Etna volcano has been analysed using global navigation satellite system (GNSS)-derived TEC values, employing data from International GNSS Service (IGS) reference station near the volcano and on two distant IGS locations. Volcanic activity has been modelled using volcanic radiative power (VRP) data obtained by the Middle InfraRed Observation of Volcani
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Smirnov, Sergey, Sergey Pulinets, and Vasily Bychkov. "Some Effects of the Shiveluch Volcano Eruption of the 10 April 2023 on Atmospheric Electricity and the Ionosphere." Atmosphere 15, no. 12 (2024): 1467. https://doi.org/10.3390/atmos15121467.

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The full range of effects of strong volcanic eruptions on the electrical characteristics of the atmosphere is not yet fully understood. On the 10 April 2023, the largest eruption in recent decades of the Shiveluch volcano in Kamchatka occurred. At the same time, a sharp increase in electron concentration was observed in the F layer of the ionosphere above the volcano. Simultaneously, at a distance of 450 km from the volcano, an intense anomaly was observed in the vertical component of the electric field potential gradient in the surface atmosphere. At this distance, the anomaly could not have
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Hu, Yiwei, Boxi Li, and Yue Yin. "The Causes of Volcanic Eruptions and How They Affect Our Environment." Highlights in Science, Engineering and Technology 26 (December 30, 2022): 391–96. http://dx.doi.org/10.54097/hset.v26i.4013.

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Volcanic eruptions often have an impact on the environment. In the context of the environmental problem of global warming, a large amount of carbon dioxide released by volcanic eruptions will aggravate the greenhouse effect, which has aroused widespread concern. This article first explains the volcano's cone-shaped structure with several craters, cones, and vents. Although each volcano is unique, most volcanoes can be separated into three major types, the first type is a cinder cone, the second type is a composite volcano, and the third type is a shield volcano. Furthermore, this article inter
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Santer, Benjamin, Susan Solomon, David Ridley, et al. "Volcanic effects on climate." Nature Climate Change 6, no. 1 (2015): 3–4. http://dx.doi.org/10.1038/nclimate2859.

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Plummer, C. T., M. A. J. Curran, T. D. van Ommen, et al. "An independently dated 2000-yr volcanic record from Law Dome, East Antarctica, including a new perspective on the dating of the c. 1450s eruption of Kuwae, Vanuatu." Climate of the Past Discussions 8, no. 3 (2012): 1567–90. http://dx.doi.org/10.5194/cpd-8-1567-2012.

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Abstract. Volcanic eruptions are an important cause of natural climate variability. In order to improve the accuracy of climate models, precise dating and magnitude of the climatic effects of past volcanism are necessary. Here we present a 2000-yr record of Southern Hemisphere volcanism recorded in ice cores from the high accumulation Law Dome site, East Antarctica. The ice cores were analyzed for a suite of chemistry signals and are independently dated via annual layer counting, with 11 ambiguous years by the end of the record. Independently dated records are important to avoid circular datin
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Dissertations / Theses on the topic "Volcanic effects"

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Miles, Georgina. "Detection and effects of volcanic sulphur in the stratosphere." Thesis, University of Oxford, 2011. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.558461.

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Explosive volcanic eruptions perturb the atmosphere, and their main impact arises from the large quantities of 802 emitted. Within this thesis this effect is characterised from a modelling perspective and the detection and measure- ment of 802 by a satellite are improved. A stratospheric aerosol box model is developed that parameterises the aerosol evolution from an emitted mass of volcanic 802. Using aerosol optical depth measurements and a simple energy balance model, the 802 mass is directly related to a global average tempera- ture change. Combining this model with historical eruption reco
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Haskins, Jessica D. "The effects of volcanic aerosols on mid-latitude ozone recovery." Thesis, Massachusetts Institute of Technology, 2014. http://hdl.handle.net/1721.1/90662.

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Thesis: S.B., Massachusetts Institute of Technology, Department of Earth, Atmospheric, and Planetary Sciences, 2014.<br>Cataloged from PDF version of thesis.<br>Includes bibliographical references (pages 30-31).<br>In this paper, comparisons between the derived Chemistry Climate Model Initiative aerosol data set to balloon sonde measurements of aerosols made in Laramie, Wyoming are made between 1979- 2012. Using the derived CCMI aerosol data set as the input for surface area density of aerosols in the Specified Dynamics-Whole Atmosphere Climate Community Model (SD-WACCM), the impacts of volcan
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Marshall, Lauren Rebecca. "Effects of volcanic eruption source parameters on radiative forcing and sulfate deposition." Thesis, University of Leeds, 2018. http://etheses.whiterose.ac.uk/22551/.

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Explosive volcanic eruptions can inject sulfur dioxide (SO2) into the stratosphere, which forms stratospheric sulfate aerosol that can significantly impact the climate. The radiative forcing of an eruption depends on several eruption source parameters: the mass of SO2 emitted, the latitude and the emission height. However, the combined effects of these parameters are not well understood. Reconstructions of historic volcanic radiative forcing, which are essential for understanding the role of volcanism on climate variability, are derived from ice core sulfate records, but rely on relationships
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Walter, Gary R. "The effects of molecular diffusion on groundwater solute transport through fractured tuff." Diss., The University of Arizona, 1985. http://etd.library.arizona.edu/etd/GetFileServlet?file=file:///data1/pdf/etd/azu_e9791_1985_458_sip1_w.pdf&type=application/pdf.

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Zhuo, Zhihong [Verfasser]. "The hydrological effects of explosive volcanic eruptions in the Asian monsoon region / Zhihong Zhuo." Berlin : Freie Universität Berlin, 2019. http://d-nb.info/1202041981/34.

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Faizy, Shelly Mardhia. "Assessing a Modeling Standard in Volcanic-Geothermal Systems: the Effects of the Lower System Boundary." Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-438664.

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Geothermal energy consumption is projected to increase along with other renewable energy in the future. Therefore, it is important to have a better understanding on the evolution of geothermal systems to optimize the exploitation of such resources. Generally, numerical models are used as a fundamental tool to study a potential geothermal field. However, current modeling practices tend to focus on the shallow area around the heat source, while ignoring the deeper part below the heat source. The purpose of this project is to observe the influence of lower boundary at the bottom of intrusion towa
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Romine, William Whittington Alan G. "Flow and heat transfer properties of Mono Craters rhyolites effects of temperature, water content, and crystallinity /." Diss., Columbia, Mo. : University of Missouri--Columbia, 2008. http://hdl.handle.net/10355/5685.

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The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file. Title from PDF of title page (University of Missouri--Columbia, viewed on October 5, 2009). Thesis advisor: Dr. Alan G. Whittington. Includes bibliographical references.
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Marske, Katharine Ann. "Effects of volcanic ash on the insect food of the Montserrat Oriole Ictereus oberi Lawrence 1880." Thesis, Montana State University, 2004. http://etd.lib.montana.edu/etd/2004/marske/MarskeK0804.pdf.

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The Montserrat Oriole, Icterus oberi Lawrence, endemic to the West Indian island of Montserrat, has grown critically endangered since volcanic eruption began on that island in 1995. The Soufriere Hills Volcano has devastated much of the oriole's native habitat, and populations within intact forests have plummeted in recent years. One hypothesized cause for the Montserrat Oriole's decline is that low insect prey numbers during the nesting season, as a result of volcanic ash in the environment, is resulting in increased nest failure. The hypothesis of a negative effect of ash on canopy arthropod
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Lyu, Han. "EFFECTS OF CLIMATE AND GEOCHEMISTRY ON SECONDARY MINERAL DISTRIBUTION AND SOIL ORGANIC CARBON POOLS IN TROPICAL VOLCANIC REGIONS." Doctoral thesis, Kyoto University, 2021. http://hdl.handle.net/2433/263813.

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MINAGAWA, Tetsuo, Takafumi TAKAHASHI, Kazuya TANAKA, and Iwao KAWABE. "Evidence for lanthanide tetrad effect in mafic volcanic rocks: Concave tetrad effects in REE patterns for MORB and alkali olivine basalt in western Kyushu, Japan." Dept. of Earth and Planetary Sciences, Nagoya University, 2008. http://hdl.handle.net/2237/14728.

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Books on the topic "Volcanic effects"

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Zimbelman, James R., and Tracy K. P. Gregg, eds. Environmental Effects on Volcanic Eruptions. Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4151-6.

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Fernández, José, ed. Geodetic and Geophysical Effects Associated with Seismic and Volcanic Hazards. Birkhäuser Basel, 2004. http://dx.doi.org/10.1007/978-3-0348-7897-5.

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Bilderback, David E. Effects of persistent volcanic ash on Douglas-fir in northern Idaho. U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1987.

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Giorgio, Fiocco, Fuá Daniele 1948-, Visconti Guido 1943-, North Atlantic Treaty Organization. Scientific Affairs Division., and NATO Advanced Research Workshop "The Effects of the Mount Pinatubo Eruption on the Atmosphere and Climate" (1994 : Rome, Italy), eds. The Mount Pinatubo eruption: Effects on the atmosphere and climate. Springer, 1996.

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Tiedemann, Herbert. Earthquakes and volcanic eruptions: A handbook on risk assessment. Swiss Re, 1992.

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Beavers, J. A. Environmental effects on corrosion in the tuff repository. Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1990.

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Love, Cynthia B. Biomedical effects of volcanoes: January 1980 through September 1991 : 697 citations. U.S. Dept. of Health and Human Services, Public Health Service, National Institutes of Health, National Library of Medicine, Reference Section ; Washington, D.C. : Sold by the Supt. of Docs., U.S. G.P.O., 1992.

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Lee, Douglas B. Effects of the eruptions of Mount St. Helens on physical, chemical, and biological characteristics of surface water, ground water, and precipitation in the western United States. U.S. G.P.O., 1996.

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Sutomo. Ecological succession on volcanic ecosystem of Mount Merapi, Indonesia and its implication for restoration. Southeast Asian Regional Centre for Tropical Biology, 2013.

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Allègre, Jean-Luc. Planète volcan: Le Piton de la Fournaise, du sommet des cratères à l'océan. Jean-Luc Allègre, 1999.

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Book chapters on the topic "Volcanic effects"

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Gregg, Tracy K. P., and James R. Zimbelman. "Volcanic Vestiges." In Environmental Effects on Volcanic Eruptions. Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4151-6_9.

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Zimbelman, James R., and Tracy K. P. Gregg. "Volcanic Diversity throughout the Solar System." In Environmental Effects on Volcanic Eruptions. Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4151-6_1.

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Zimbelman, James R., Sarah A. Fagents, Tracy K. P. Gregg, Curtis R. Manley, and Scott K. Rowland. "Subaerial Terrestrial Volcanism." In Environmental Effects on Volcanic Eruptions. Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4151-6_2.

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Chapman, Mary G., Carlton C. Allen, Magnus T. Gudmundsson, et al. "Volcanism and Ice Interactions on Earth and Mars." In Environmental Effects on Volcanic Eruptions. Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4151-6_3.

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Greeley, Ronald, Nathan T. Bridges, David A. Crown, et al. "Volcanism on the Red Planet: Mars." In Environmental Effects on Volcanic Eruptions. Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4151-6_4.

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Grosfils, Eric B., Jayne Aubele, Larry Crumpler, Tracy K. P. Gregg, and Susan Sakimoto. "Volcanism on Earth’s Seafloor and Venus." In Environmental Effects on Volcanic Eruptions. Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4151-6_5.

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Head, James W., Lionel Wilson, Mark Robinson, Harald Hiesinger, Catherine Weitz, and Aileen Yingst. "Moon and Mercury." In Environmental Effects on Volcanic Eruptions. Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4151-6_6.

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McEwen, Alfred S., Rosaly Lopes-Gautier, Laszlo Keszthelyi, and Susan W. Kieffer. "Extreme Volcanism on Jupiter’s Moon Io." In Environmental Effects on Volcanic Eruptions. Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4151-6_7.

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Pinkerton, Harry, Sarah A. Fagents, Louise Prockter, Paul Schenk, and David A. Williams. "Exotic Lava Flows." In Environmental Effects on Volcanic Eruptions. Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-4151-6_8.

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Stothers, R. B., M. R. Rampino, S. Self, and J. A. Wolff. "Volcanic Winter? Climatic Effects of the Largest Volcanic Eruptions." In IAVCEI Proceedings in Volcanology. Springer Berlin Heidelberg, 1989. http://dx.doi.org/10.1007/978-3-642-73759-6_1.

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Conference papers on the topic "Volcanic effects"

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Romeo, Francesco, Luigi Mereu, Simona Scollo, and Marianna Biscarini. "Effects of Volcanic Particles on Satellite Links at Ka, Q/V, V and W band." In 2024 IEEE International Symposium on Antennas and Propagation and INC/USNC‐URSI Radio Science Meeting (AP-S/INC-USNC-URSI). IEEE, 2024. http://dx.doi.org/10.1109/ap-s/inc-usnc-ursi52054.2024.10686040.

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Ghoshal, Anindya, Kevin Kerner, Muthuvel Murugan, Blake Barnett, Michael Walock, and Marc Pepi. "Turbomachinery Blade Thermomechanical Interface Science and Sandphobic Coatings Research." In Vertical Flight Society 71st Annual Forum & Technology Display. The Vertical Flight Society, 2015. http://dx.doi.org/10.4050/f-0071-2015-10240.

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Gas turbine engines operating in hostile environment polluted with micron-sized solid particles are susceptible to blade surface damage. Commercial/Military fixed-wing aircraft engines and helicopter engines often have to operate over sandy terrains or in volcanic areas; on the other hand gas turbines in marine applications are subjected to salt spray, while the coal-burning industrial power generation turbines are subjected to fly-ash. The presence of solid particles in the working fluid medium has an adverse effect on these engines, both structurally and aerodynamically. Typical turbine blad
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Valero, Francisco P. J., Thomas P. Ackerman, and Walter L. Starr. "Changes in Solar Heating Rates and Planetary Albedo Induced by the El Chichon Volcanic Cloud." In Optical Remote Sensing. Optica Publishing Group, 1985. http://dx.doi.org/10.1364/ors.1985.wc4.

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The eruption of the Mexican volcano El Chichon (17.33°N, 93.20°W) on March 28, April 3, and April 4, 1982 injected particulate and gaseous matter into the stratosphere. This volcanic cloud ranked as one of the most massive of this century. DeLuisi et al, (1983) reported that "the atmospheric radiative effects of the El Chichon cloud far exceed the effects of all other volcanic clouds observed at Mauna Loa since observations were began in 1958". Very large optical depths were reported for this volcanic cloud in the northern tropics during the first few months since its formation.
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Silva-Medina Weil, Melissa, Mauricio Palacios, and Vicente Benavides. "Pulmonary effects of volcanic air pollution." In ERS International Congress 2020 abstracts. European Respiratory Society, 2020. http://dx.doi.org/10.1183/13993003.congress-2020.1302.

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Stevens, T. D., S. Maruvada, T. J. Kane, and C. R. Philbrick. "Lidar Observations of Mt. Pinatubo Aerosols: Effects on the Global Radiation Budget." In Optical Remote Sensing of the Atmosphere. Optica Publishing Group, 1993. http://dx.doi.org/10.1364/orsa.1993.thb.5.

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Significant amounts of stratospheric aerosols can cause a cooling of the earth's surface due to the scattering of solar radiation back into space. Likewise a warming of the stratosphere where the particles reside will occur due to absorption of upwelling infrared radiation [1]. The eruption of the Pinatubo volcano in the Philippines (15.14°N, 120.35°E) on June 15, 1991, produced the largest impact on the stratosphere ever observed by modem airborne, spaceborne, and ground-based scientific instruments. The volcanic aerosols were ejected into the upper troposphere and the stratosphere to heights
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Nagaraja Rao, C. R., and Nian Zhang. "Mt. Pinatubo volcanic aerosol effects on the remote sensing of sea surface temperature." In OSA Annual Meeting. Optica Publishing Group, 1992. http://dx.doi.org/10.1364/oam.1992.fmm5.

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The stratospheric volcanic dust cloud resulting from the eruption of Mt. Pinatubo in June 1991 has adversely affected the retrieval of sea surface temperature from the upwelling infrared radiances (≈3.7,10.8, and 11.9 µm) measured by the Advanced Very High Resolution Radiometer onboard the NOAA polar orbiting satellites. Correction algorithms to restore the capability of sea surface temperature retrieval during such volcanic dust episodes have been developed by combining model simulations of the radiative effects of volcanic aerosols with shipboard and buoy measurements of sea surface temperat
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Zakharov, Alexander, Liudmila Zakharova, Polina Mikhaylyukova, and Pavel Denisov. "Atmospheric Effects on Radarsat-2 Interferograms of Tolbachik Volcanic Complex." In IGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium. IEEE, 2018. http://dx.doi.org/10.1109/igarss.2018.8517511.

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Darwis, Fitro, Ilham Banggu, and Mufti Amir Sultan. "The Effects Of Volcanic Ash On The Strength And Permeability Mortar." In Proceedings of the International Conference on Science and Technology (ICST 2018). Atlantis Press, 2018. http://dx.doi.org/10.2991/icst-18.2018.78.

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Lo Piparo, Doriana, Caterina Di Sano, Serena Di Vincenzo, Francesco Sortino, and Elisabetta Pace. "Effects of volcanic fumaroles on large and distal airway epithelial homeostasis." In ERS International Congress 2020 abstracts. European Respiratory Society, 2020. http://dx.doi.org/10.1183/13993003.congress-2020.1969.

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Cherneva, Nina V., Pavel P. Firstov, and Rinat R. Akbashev. "Perspectives of monitoring of atmospheric-electric effects from volcanic eruptions in Kamchatka." In XXIV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, edited by Oleg A. Romanovskii and Gennadii G. Matvienko. SPIE, 2018. http://dx.doi.org/10.1117/12.2504174.

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Reports on the topic "Volcanic effects"

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Mulliken, K. M. The Alaska Volcano Observatory: 30 years of protecting Alaskans from the effects of volcanic activity (1988-2018). Alaska Division of Geological & Geophysical Surveys, 2018. http://dx.doi.org/10.14509/30032.

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Baragar, W. R. A., J. N. Ludden, and F. Auclair. Alteration Effects in Pillow Lavas From the Cy - 1 Drillhole, Upper Volcanic Sequence, Troodos Ophiolite. Natural Resources Canada/ESS/Scientific and Technical Publishing Services, 1992. http://dx.doi.org/10.4095/133536.

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Schetselaar, E. M., G. Bellefleur, and P. Hunt. Integrated analyses of density, P-wave velocity, lithogeochemistry, and mineralogy to investigate effects of hydrothermal alteration and metamorphism on seismic reflectivity: a summary of results from the Lalor volcanogenic massive-sulfide deposit, Snow Lake, Manitoba. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/327999.

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We present herein a summary of integrated data analyses aimed at investigating the effects of hydrothermal alteration on seismic reflectivity in the footwall of the Lalor volcanogenic massive-sulfide (VMS) deposit, Manitoba. Multivariate analyses of seismic rock properties, lithofacies, and hydrothermal alteration indices show an increase in P-wave velocity for altered volcanic and volcaniclastic lithofacies with respect to their least-altered equivalents. Scanning electron microscopy-energy dispersive X-ray spectrometry analyses of drill-core samples suggest that this P-wave velocity increase
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Hadlari, T. Geo-mapping for Energy and Minerals program: activities in the Sverdrup Basin, Canadian Arctic Islands. Natural Resources Canada/CMSS/Information Management, 2022. http://dx.doi.org/10.4095/326088.

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Advancements in the establishment of the geological framework of the Sverdrup Basin resulting from the Geo-mapping for Energy and Minerals program can be grouped under the main topics of tectonostratigraphy, crosslinking of biostratigraphy and chronostratigraphy, integration of igneous records with newly refined stratigraphy, and effects of global climatic environments on hydrocarbon source rocks in geological time. New discoveries of volcanic ash beds throughout much of the Triassic stratigraphic section required new tectonic interpretations involving a magmatic arc northwest of the basin tha
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5

Swanson, David. Tree investigations in the Noatak National Preserve, Alaska, 2011?2022: Old-growth and new forests. National Park Service, 2023. http://dx.doi.org/10.36967/2301700.

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Tree rings in the Noatak National Preserve provide information about the growth of trees at the cold limit of tree survival in northwestern North America. The present study was based on cores and other tree measurements (tree basal area, height, and number per unit area) of white spruce (Picea glauca) and balsam poplar (Populus balsamifera) trees taken from 39 permanent monitoring plots (34 with coreable trees) at three locations in the Preserve. The tree rings widths were measured and then normalized using a 50-year smoothing spline to remove the effects of growth variations through the life
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Sutton, A. J., and T. Elias. Volcanic gas emissions and their effect on ambient air character. Office of Scientific and Technical Information (OSTI), 1994. http://dx.doi.org/10.2172/10117402.

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Swan, Megan, and Christopher Calvo. Site characterization and change over time in semi-arid grassland and shrublands at three parks?Chaco Culture National Historic Park, Petrified Forest National Park, and Wupatki National Monument: Upland vegetation and soils monitoring 2007?2021. National Park Service, 2024. http://dx.doi.org/10.36967/2301582.

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This report presents results of upland vegetation and soil monitoring of semi-arid grasslands at three Parks by the Southern Colorado Plateau Inventory and Monitoring Network (SCPN) from 2007?2021. The purpose is to compare and contrast five grassland ecological sites and examine how they have changed during the first 15 years of monitoring. Crews collected data on composition and abundance of vegetation, both at the species level and by lifeform (e.g., perennial grass, shrub, forb) and soil aggregate stability and soil texture at 150 plots within five target grassland/shrubland communities de
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Gavin, Greg, Paul Inkenbrandt, Trevor Schlossnagle, and Rebecca Molinari. Groundwater of Pahvant Valley, Millard County, Utah. Utah Geological Survey, 2024. http://dx.doi.org/10.34191/ss-173.

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Pahvant Valley, located in Millard County, Utah, encompasses 1610 square miles and includes several small towns, agricultural districts, hot springs, and biologically important wetlands, all heavily reliant on groundwater. This study, conducted by the Utah Geological Survey during 2022 and 2023, aims to define Pahvant Valley’s water recharge and discharge estimates, characterize its primary hydrogeologic units, and describe groundwater recharge and discharge areas. The research includes the collection of groundwater and surface water samples to estimate flow paths, sources of recharge and disc
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Dello, Kathie D., and Philip W. Mote. Oregon climate assessment report : December 2010. Corvallis, Oregon : Oregon Climate Change Research Institute, Oregon State University, 2010. http://dx.doi.org/10.5399/osu/1157.

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The group of scientists that make up the Intergovernmental Panel on Climate Change found in 2007 that the warming of Earth’s climate is unequivocal and largely due to human activity. Earth’s climate has changed in the past, though the recent magnitude and pace of changes are unprecedented in human existence. Recent decades have been warmer than at any time in roughly 120,000 years. Most of this warming can be attributed to anthropogenic activity, primarily burning fossil fuels (coal, oil and natural gas) for energy. Burning fossil fuels releases carbon dioxide and other heat trapping gases, al
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Valentine, G. A., and J. E. Bossert. Numerical simulation of explosive volcanism and its effects on the atmosphere. Office of Scientific and Technical Information (OSTI), 1998. http://dx.doi.org/10.2172/334239.

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