Relevant bibliographies by topics / Bottom-up forcings

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  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers

Academic literature on the topic 'Bottom-up forcings'

Author: Grafiati
Published: 25 May 2024
Last updated: 31 July 2025

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Journal articles on the topic "Bottom-up forcings"

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Molero, Francisco, Alfonso Javier Fernández, María Aránzazu Revuelta, Isabel Martínez-Marco, Manuel Pujadas, and Begoña Artíñano. "Effect of Vertical Profile of Aerosols on the Local Shortwave Radiative Forcing Estimation." Atmosphere 12, no. 2 (2021): 187. http://dx.doi.org/10.3390/atmos12020187.

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In this work, the effect of the aerosol vertical distribution on the local shortwave aerosol radiative forcing is studied. We computed the radiative forcing at the top and bottom of the atmosphere between 0.2 and 4 microns using the libRadTran package and compared the results with those provided by AERONET (AErosol RObotic NETwork). Lidar measurements were employed to characterize the aerosol vertical profile, and collocated AERONET measurements provided aerosol optical parameters required to calculate its radiative forcing. A good correlation between the calculated radiative forcings and thos
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Pielke, Roger A., Jimmy Adegoke, Faisal Hossain, and Dev Niyogi. "Environmental and Social Risks to Biodiversity and Ecosystem Health—A Bottom-Up, Resource-Focused Assessment Framework." Earth 2, no. 3 (2021): 440–56. http://dx.doi.org/10.3390/earth2030026.

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Risks from human intervention in the climate system are raising concerns with respect to individual species and ecosystem health and resiliency. A dominant approach uses global climate models to predict changes in climate in the coming decades and then to downscale this information to assess impacts to plant communities, animal habitats, agricultural and urban ecosystems, and other parts of the Earth’s life system. To achieve robust assessments of the threats to these systems in this top-down, outcome vulnerability approach, however, requires skillful prediction, and representation of changes
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Pradeep Ram, A. S., S. Chaibi-Slouma, J. Keshri, J. Colombet, and T. Sime-Ngando. "Functional Responses of Bacterioplankton Diversity and Metabolism to Experimental Bottom-Up and Top-Down Forcings." Microbial Ecology 72, no. 2 (2016): 347–58. http://dx.doi.org/10.1007/s00248-016-0782-0.

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Lopes, José Fortes. "Assessing the Influence of the Benthic/Pelagic Exchange on the Nitrogen and Phosphorus Status of the Water Column, under Physical Forcings: A Modeling Study." Journal of Marine Science and Engineering 12, no. 8 (2024): 1310. http://dx.doi.org/10.3390/jmse12081310.

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The main purpose of this study is to set up a biogeochemistry model for the Ria de Aveiro ecosystem and evaluate the relative importance of the main parameters and the processes occurring at the interface between the water column and the upper layer of the bottom sediment. It addresses a gap in modeling the interactions between the biogeochemical status of the water column and the upper sediment layer in the Ria de Aveiro lagoon ecosystem. Traditional modeling studies treated the bottom sediment as a rigid boundary, ignoring significant biogeochemical interactions at the interface between the
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Dinápoli, Matías G., Claudia G. Simionato, and Diego Moreira. "Model Sensitivity during Extreme Positive and Negative Surges in the Río de la Plata Estuary: Highlighting the Need for an Appropriate Hindcast/Forecast System." Weather and Forecasting 35, no. 3 (2020): 1097–112. http://dx.doi.org/10.1175/waf-d-19-0171.1.

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Abstract The large and fast-flowing Río de la Plata (RdP) estuary is affected by extreme storm surges (above ±2 m with respect to tidal datum), which have large impacts on the millions of inhabitants and for navigation. In this work the Coastal and Regional Ocean Community Model (CROCO) numerical model was modified and implemented as a set of regional one-way nested 2D applications for the hindcast/forecast of water level in the RdP. A sensitivity analysis (SA) was carried out to determine the impact on the numerical solutions of the uncertainties in the different modeling parameter forcings a
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Habib, Md Ahsan, and Gary A. Zarillo. "Construction of a Real-Time Forecast Model for Coastal Engineering and Processes Nested in a Basin Scale Model." Journal of Marine Science and Engineering 11, no. 7 (2023): 1263. http://dx.doi.org/10.3390/jmse11071263.

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A numerical model was developed using Delft3D to simulate the circulation dynamics in Port Everglades, FL, and the adjacent coastal area. The model was nested within the HYCOM (Hybrid Coordinate Ocean Model), while meteorological data were obtained from the NARR (North American Regional Reanalysis) model. To evaluate the model, model outputs were compared with observed data from the NOAA. Calibration experiments were conducted on the model parameters, including the bottom friction, wind forcings, and vertical layer specification. These experiments revealed that implementing a 10-layer model sl
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Anet, J. G., S. Muthers, E. V. Rozanov, et al. "Impact of solar versus volcanic activity variations on tropospheric temperatures and precipitation during the Dalton Minimum." Climate of the Past 10, no. 3 (2014): 921–38. http://dx.doi.org/10.5194/cp-10-921-2014.

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Abstract. The aim of this work is to elucidate the impact of changes in solar irradiance and energetic particles versus volcanic eruptions on tropospheric global climate during the Dalton Minimum (DM, AD 1780–1840). Separate variations in the (i) solar irradiance in the UV-C with wavelengths λ < 250 nm, (ii) irradiance at wavelengths λ > 250 nm, (iii) in energetic particle spectrum, and (iv) volcanic aerosol forcing were analyzed separately, and (v) in combination, by means of small ensemble calculations using a coupled atmosphere–ocean chemistry–climate model. Global and hemispheric mea
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Anet, J. G., S. Muthers, E. V. Rozanov, et al. "Impact of solar vs. volcanic activity variations on tropospheric temperatures and precipitation during the Dalton Minimum." Climate of the Past Discussions 9, no. 6 (2013): 6179–220. http://dx.doi.org/10.5194/cpd-9-6179-2013.

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Abstract. The aim of this work is to elucidate the impact of changes in solar irradiance and energetic particles vs. volcanic eruptions on tropospheric global climate during the Dalton Minimum (DM, 1780–1840 AD). Separate variations in the (i) solar irradiance in the UV-C with wavelengths λ < 250 nm, (ii) irradiance at wavelengths λ > 250 nm, (iii) in energetic particle spectrum, and (iv) volcanic aerosol forcing were analyzed separately, and (v) in combination, by means of small ensemble calculations using a coupled atmosphere-ocean chemistry-climate-model. Global and hemispheric mean s
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Rumín-Caparrós, A., A. Sanchez-Vidal, A. Calafat, et al. "External forcings, oceanographic processes and particle flux dynamics in Cap de Creus submarine canyon, NW Mediterranean Sea." Biogeosciences Discussions 9, no. 12 (2012): 18571–600. http://dx.doi.org/10.5194/bgd-9-18571-2012.

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Abstract. Atmospheric forcing during 2009–2010 and 2010–2011 winter months showed differences in both intensity and persistence that led to distinct oceanographic responses. Persistent dry northern winds caused strong heat losses (14 211 W m−2) in winter 2009–2010 that triggered a pronounced sea surface cooling compared to winter 2010–2011 (1597 W m−2 lower). As a consequence, a large volume of dense shelf water formed in winter 2009–2010, which cascaded at high speed (up to ∼ 1 m s−1) down Cap de Creus canyon, as measured by current-meters in mooring lines deployed inside the canyon at 300 m
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Rumín-Caparrós, A., A. Sanchez-Vidal, A. Calafat, et al. "External forcings, oceanographic processes and particle flux dynamics in Cap de Creus submarine canyon, NW Mediterranean Sea." Biogeosciences 10, no. 6 (2013): 3493–505. http://dx.doi.org/10.5194/bg-10-3493-2013.

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Abstract. Particle fluxes (including major components and grain size), and oceanographic parameters (near-bottom water temperature, current speed and suspended sediment concentration) were measured along the Cap de Creus submarine canyon in the Gulf of Lions (GoL; NW Mediterranean Sea) during two consecutive winter-spring periods (2009–2010 and 2010–2011). The comparison of data obtained with the measurements of meteorological and hydrological parameters (wind speed, turbulent heat flux, river discharge) have shown the important role of atmospheric forcings in transporting particulate matter t
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Dissertations / Theses on the topic "Bottom-up forcings"

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Sergi, Sara. "Nutrient input from seamounts and hydrothermal vents in the Southern Ocean : impacts on the pelagic ecosystems and implications for conservation." Electronic Thesis or Diss., Sorbonne université, 2021. http://www.theses.fr/2021SORUS508.

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Les processus bottom-up contôlent une portion importante de la variabilité des écosystèmes marins. Dans l'océan Austral, des contrastes intenses dans la distribution des écosystèmes pélagiques sont génerés par la limitation de la production primaire par le fer et la Courant Circumpolaire Antarctique. Les efflorescences massives en phytoplancton en aval des îles entretiennent des vastes réseaux trophiques. En comparaison, l'impact des sources profondes de nutriments sur la production pélagique semble négligeable. Les programmes de conservation dans la Courant Circumpolaire Antarctique vont
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Saba, Vincent Sellitto. "Bottom-up and climatic forcing on the nesting and foraging ecology of leatherback turtles (Dermochelys coriacea)." W&M ScholarWorks, 2007. http://www.vims.edu/library/Theses/Saba07.pdf.

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Books on the topic "Bottom-up forcings"

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Faust, Avraham. The Neo-Assyrian Empire in the Southwest. Oxford University Press, 2021. http://dx.doi.org/10.1093/oso/9780198841630.001.0001.

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The Neo-Assyrian empire—the first large empire of the ancient world—had attracted a great deal of public attention ever since the spectacular discoveries of the nineteenth century. The southwestern part of this empire, located in the lands of the Bible, is archaeologically speaking the best-known region in the world, and its history is also described in a plethora of texts, including the Hebrew Bible. Using a bottom-up approach, this book utilizes this unparalleled information to reconstruct the outcomes of the Assyrian conquest of the region, and how it impacted the diverse political units an
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Book chapters on the topic "Bottom-up forcings"

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Bletsas, Michail, and Adolfo Plasencia. "The Emergence of a Nonbiological Intelligence." In Is the Universe a Hologram? The MIT Press, 2017. http://dx.doi.org/10.7551/mitpress/9780262036016.003.0016.

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Michail Bletsas, Director of Computing at the MIT Media Lab and Director of the Network Computing Systems Group at MIT, is convinced that the 21st century will see the emergence of biological intelligence. He starts the dialogue with an explanation of why the Internet and its huge computational system, - the most complex human-built system -, is forcing us to learn to engage with systems that are becoming even more complicated, with varying levels of complexity. He describes later the arrival of the finely granular Internet, which in consequence led to the concept of connectivity everywhere. L
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"Advancing an Ecosystem Approach in the Gulf of Maine." In Advancing an Ecosystem Approach in the Gulf of Maine, edited by Michael J. Fogarty, Kevin D. Friedland, Laurel Col, et al. American Fisheries Society, 2012. http://dx.doi.org/10.47886/9781934874301.ch12.

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<i>Abstract</i>.—The northeast U.S. Continental Shelf large marine ecosystem (NES LME) has supported important commercial fisheries for several centuries. The NES LME has experienced structural change due to both intensive exploitation and physical forcing in relation to broader climate impacts in the North Atlantic over the past several decades. Here, we examine the combined effects of anthropogenic and environmental factors on the state of the NES LME using a driverpressure- state-impact-response framework to structure our assessment of patterns of change in this system. We parti
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Conference papers on the topic "Bottom-up forcings"

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Belibassakis, K. A., Th P. Gerostathis, and G. A. Athanassoulis. "A Coupled-Mode Technique for the Prediction of Wave-Induced Set-Up and Mean Flow in Variable Bathymetry Domains." In ASME 2007 26th International Conference on Offshore Mechanics and Arctic Engineering. ASMEDC, 2007. http://dx.doi.org/10.1115/omae2007-29365.

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In the present work, a complete, phase-resolving wave model is coupled with an iterative solver of the mean-flow equations in intermediate and shallow water depth, permitting an accurate calculation of wave set-up and wave-induced current in intermediate and shallow water environment with possibly steep bathymetric variations. The wave model is based on the consistent coupled-mode system of equations, developed by Athanassoulis & Belibassakis (1999) for the propagation of water waves in variable bathymetry regions. This model improves the predictions of the mild-slope equation, permitting
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Littleford, Wayne, and Sanjeev Jolly. "An Innovative Approach to Emission Reductions and Heat Recovery: Comply Units." In ASME Turbo Expo 2010: Power for Land, Sea, and Air. ASMEDC, 2010. http://dx.doi.org/10.1115/gt2010-23814.

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Emissions from power plants are increasingly becoming a global concern that is forcing countries to set tougher and tougher standards for meeting regulations. Compliance with these requirements comes at a cost — resources required to install and maintain the necessary equipment that is often exacerbated by a reduction in efficiency. These harmful emissions that are products of combustion (POC) are typically classified as NOx, SO2, CO2, UHC (unburned hydrocarbons) and Particulate and sometimes heavy metals like mercury, arsenic, etc. Currently there are specific methods available for reducing e
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Vested, Malene H., Stefan Carstensen, and Erik Damgaard Christensen. "Experimental Study of Wave Force Distribution on a Monopile Structure." In ASME 2018 37th International Conference on Ocean, Offshore and Arctic Engineering. American Society of Mechanical Engineers, 2018. http://dx.doi.org/10.1115/omae2018-77509.

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As the demand for offshore wind energy continues to grow, the strive to understand the wave forces acting on the substructure of the wind turbines continues. In regard to wind turbine design, it is vital to consider not only the total wave force, but also the local wave forces. Local forces are particularly important for the design of secondary structures as e.g. mooring platforms. Typically, however, experimental studies mainly concern total forces or idealized local forces. We present here a rather simple way to measure local forces along a model monopile. The study is conducted in a wave fl
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Zhang, Hua, Jamal uddin Muhammad, and Naif Mutlaq Alhajri. "Successful Managed Pressure Drilling Application in a Challenging Well With Crossflow in Unconventional Field." In Middle East Oil, Gas and Geosciences Show. SPE, 2023. http://dx.doi.org/10.2118/213441-ms.

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Abstract Unconventional tight gas well encountered unexpected losses at target depth and simultaneously well control took place from water source in upper zone. Bleed off tests concluded it was kick rather than ballooning. Combining upper flow and lower loss zones resulted in downhole crossflow and near zero mud window providing high operational risks to drill next 5-7/8 inch horizontal section. Managed Pressure Drilling (MPD) was utilized to drill horizontal section, mitigate well control risk and reach reservoir target. Prior to MPD selection, several attempts could not heal losses. The cont
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Gore, Daniel J. "Maritime Administration’s Formulation of a Maritime Energy and Clean Emissions Program." In ASME 2002 Internal Combustion Engine Division Spring Technical Conference. ASMEDC, 2002. http://dx.doi.org/10.1115/ices2002-462.

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The Environmental Protection Agency promulgation of “Control of Emissions of Air Pollution from New Marine Compression Ignition Engines at or above 37 kW,” on December 29, 1999, marked the first time federal air pollution regulations were directly applied to marine engines for commercial U.S. ships. Perhaps surprisingly, these regulations are not having as much impact as are individual State Implementation Plans (SIP) for Nitrogen Oxides (NOx) attainment, and local political pressures. These regional plans and pressures are forcing many domestic marine operators and ports to get a quick educat
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