Gotowe bibliografie tematyczne / ENVIRONMENTAL FLOW ASSESSMENT

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Gotowa bibliografia na temat „ENVIRONMENTAL FLOW ASSESSMENT”

Autor: Grafiati
Data publikacji: 11 września 2023

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Artykuły w czasopismach na temat "ENVIRONMENTAL FLOW ASSESSMENT"

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Halwatura, D., i MMM Najim. "Environmental Flow Assessment – An Analysis". Journal of Environmental Professionals Sri Lanka 3, nr 2 (24.12.2014): 1. http://dx.doi.org/10.4038/jepsl.v3i2.7842.

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Jain, Sharad K. "Assessment of environmental flow requirements". Hydrological Processes 26, nr 22 (18.07.2012): 3472–76. http://dx.doi.org/10.1002/hyp.9455.

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Grela, Jerzy, i Paweł Madej. "ASSESSMENT OF THE POSSIBILITIES FOR DETERMINING THE CHANNEL ENVIRONMENTAL FLOW BASED ON THE ENVIRONMENTAL REQUIREMENTS OF ICHTHYOFAUNA AND MACROZOOBENTOS". Acta Scientiarum Polonorum Formatio Circumiectus 18, nr 4 (15.12.2019): 59–70. http://dx.doi.org/10.15576/asp.fc/2019.18.4.59.

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Dubey, Alpna, Omkar Singh, Shashank Shekhar i Chwadaka Pohshna. "Assessment of Environmental Flow Requirement using Environmental Management Classes-Flow Duration Curve for Narmada River". International Journal of Current Microbiology and Applied Sciences 8, nr 01 (10.01.2019): 891–97. http://dx.doi.org/10.20546/ijcmas.2019.801.096.

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Baghel, Deepak Singh, Abhishek Gaur, M. Karthik i Devendra Dohare. "Global Trends in Environmental Flow Assessment: An Overview". Journal of The Institution of Engineers (India): Series A 100, nr 1 (24.10.2018): 191–97. http://dx.doi.org/10.1007/s40030-018-0332-5.

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Godinho, Francisco, Sérgio Costa, Paulo Pinheiro, Filipa Reis i António Pinheiro. "Integrated Procedure for Environmental Flow Assessment in Rivers". Environmental Processes 1, nr 2 (24.04.2014): 137–47. http://dx.doi.org/10.1007/s40710-014-0012-z.

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Sanderson, J. S., N. Rowan, T. Wilding, B. P. Bledsoe, W. J. Miller i N. L. Poff. "GETTING TO SCALE WITH ENVIRONMENTAL FLOW ASSESSMENT: THE WATERSHED FLOW EVALUATION TOOL". River Research and Applications 28, nr 9 (27.06.2011): 1369–77. http://dx.doi.org/10.1002/rra.1542.

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Fatemi, Seyed Ehsan, Freydon Vafaie i Hans Bressers. "Assessment of environmental flow requirement effects at an estuary". Proceedings of the Institution of Civil Engineers - Water Management 166, nr 8 (wrzesień 2013): 411–21. http://dx.doi.org/10.1680/wama.12.00005.

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Akter, Aysha, i Md Hazrat Ali. "Environmental flow requirements assessment in the Halda River, Bangladesh". Hydrological Sciences Journal 57, nr 2 (luty 2012): 326–43. http://dx.doi.org/10.1080/02626667.2011.644242.

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Suwal, Naresh, Alban Kuriqi, Xianfeng Huang, João Delgado, Dariusz Młyński i Andrzej Walega. "Environmental Flows Assessment in Nepal: The Case of Kaligandaki River". Sustainability 12, nr 21 (22.10.2020): 8766. http://dx.doi.org/10.3390/su12218766.

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Environmental flow assessments (e-flows) are relatively new practices, especially in developing countries such as Nepal. This study presents a comprehensive analysis of the influence of hydrologically based e-flow methods in the natural flow regime. The study used different hydrological-based methods, namely, the Global Environmental Flow Calculator, the Tennant method, the flow duration curve method, the dynamic method, the mean annual flow method, and the annual distribution method to allocate e-flows in the Kaligandaki River. The most common practice for setting e-flows consists of allocating a specific percentage of mean annual flow or portion of flow derived from specific percentiles of the flow duration curve. However, e-flow releases should mimic the river’s intra-annual variability to meet the specific ecological function at different river trophic levels and in different periods over a year covering biotas life stages. The suitability of the methods was analyzed using the Indicators of Hydrological Alterations and e-flows components. The annual distribution method and the 30%Q-D (30% of daily discharge) methods showed a low alteration at the five global indexes for each group of Indicators of Hydrological Alterations and e-flows components, which allowed us to conclude that these methods are superior to the other methods. Hence, the study results concluded that 30%Q-D and annual distribution methods are more suitable for the e-flows implementation to meet the riverine ecosystem’s annual dynamic demand to maintain the river’s health. This case study can be used as a guideline to allocate e-flows in the Kaligandaki River, particularly for small hydropower plants.
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Rozprawy doktorskie na temat "ENVIRONMENTAL FLOW ASSESSMENT"

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Goz, Caglayan. "Instream Flow Methodologies: Hydrological Environmental Flow Assessment In Pazarsuyu River". Master's thesis, METU, 2012. http://etd.lib.metu.edu.tr/upload/12615004/index.pdf.

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In Turkey with increasing energy demand by industrialization and urbanization, hydropower seemed to be the most environmental friendly and sustainable solution for the problem. However, hydropower has also environmental effects especially when hydropower projects are numerous on a single river, and they use almost entire water in the river. Environmental flow as a new term became popular in media with increased density of small hydropower projects in Turkey. It is the required flow in the part of diversion for Run-off River type of hydropower plant in order to protect health of the river
in other words, to balance components of the river, including physico-chemical quality standards, surface and groundwater, geomorphological dynamics, social, economic, cultural and landscape values. In this study, an analysis utilizing hydrological (desktop) environmental flow assessment methods is prepared for Turkey, focusing on the Pazarsuyu Basin as a case study, and the results are compared with the applications done by the Governmental Institutions. Moreover, insufficient applications with regard to environmental flow assessment are given and reasons for public concerns are pointed out due to small hydropower development in Turkey.
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Lagerblad, Lovisa. "Assessment of environmental flow requirements in Buzi River basin, Mozambique". Thesis, Uppsala universitet, Institutionen för geovetenskaper, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-150870.

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Rivers belong to the world’s most complex ecosystems but increasing demands for water are degrading rivers worldwide. The increase in human populations and activities has resulted in an intense and difficult conflict between the development of rivers as a natural resource and their function as living ecosystems. It is now widely recognized that a naturally variable flow regime is required to sustain freshwater ecosystems. Many countries that experience river degradation have started to implement environmental flows, i.e. the unallocated flow purposely preserved in a river. The objectives of this thesis are twofold. The first aim is to briefly describe the concept and science of environmental flows and the different methodologies for calculating environmental flows. This was done based on a literature review of the subject. The second aim is to present a case study calculating the environmental flow requirements. The case study was conducted through a field study in the Buzi River basin in Mozambique and the subsequent modeling of the environmental flow requirements. The literature study showed that not only the quantity of water is important; the timing and frequency of floods, droughts, low flows and high flows are very important as well. The literature study also showed that the advances in environmental flow science have been remarkable while the water policy and management has not been equally successful in implementing environmental flow standards. The calculation of environmental flow requirements was done with the Desktop Reserve Model developed in South Africa. The results indicated that to maintain the ecological status in the Buzi River at a largely natural condition (ecological category A) an average allocation of 57 % of mean annual runoff (MAR) is required. The present ecological status was determined in Revue River, which is one of the three major tributaries to Buzi River. To maintain the Revue River at its present ecological state requires an environmental flow between 23-37 % of MAR. The major environmental threats in Revue River are erosion and flow modification. The erosion is a consequence from artisanal gold mining, inadequate farming practices and deforestation. The flow alterations are caused by the large Chicamba Dam constructed for the generation of hydropower. One of the questions this thesis aimed to answer was if it was possible to set the present ecological state with a limited amount of data. This study showed that it could be possible but that the confidence level will be low. The relationships between ecological metrics and flow alterations must be investigated in detail for this region before environmental flow requirements can be successfully calculated and implemented.
Floder hör till jordens mest komplexa och känsliga ekosystem, men ett ökat tryck på våra vattenresurser har försämrat situationen för många av världens floder. Befolkningsökningen och den globala utvecklingen har resulterat i en intensiv och komplicerad konflikt mellan utnyttjandet av floder som en naturresurs och bevarandet av deras funktion som unika ekosystem. Det är nu allmänt accepterat att den naturliga flödesvariabiliteten behövs för att bevara våra sötvattenekosystem. Flera länder där försämringen av floder är ett faktum har börjat införa miljöanpassade flöden, det vill säga vatten som medvetet tilldelas flodens ekosystem. Det finns två syften med det här examensarbetet. Det första är att genom en litteraturstudie beskriva miljöanpassade flöden och de modeller som används för att beräkna detta flöde. Det andra målet är att göra en fallstudie och beräkna det miljöanpassade flödet och bestämma den ekologiska statusen för Buzi floden i Moçambique. Litteraturstudien visade att det inte bara är kvantiteten av vatten som är viktigt; tidpunkt och återkomsten av översvämning, torka, lågflöden och högflöden är mycket viktiga om man vill efterlikna det naturliga flödet. Litteraturstudien visade även att framstegen i kunskapen om miljöanpassade flöden har varit stora medan vattenlagstiftningens anpassning och införandet av miljöanpassade flöden har varit svag i flera avseenden. Modellerandet gjordes med den sydafrikanska Desktop Reserve Model. Resultaten från modellen visade att för att bibehålla den ekologiska statusen för Buzi floden i ett nära naturligt stadium (ekologisk klass A) krävs en tilldelning på 57% av medelårsavrinningen. Den nuvarande ekologiska statusen bestämdes i Revue floden, som är en av tre huvudfloder i Buzi avrinningsområdet. För att behålla Revue floden i sitt nuvarande tillstånd skulle kräva ett miljöanpassat flöde på mellan 23-37% av medelårsavrinningen. De största ekologiska hoten i Revue floden visade studien var erosion och flödesförändringar. Erosionen är en konsekvens av guldutgrävning, jordbruk med fel teknik, och skogs­­avverkning. Flödesförändringarna härrör från den stora vattenkraftsstationen Chicamba Dam. En av frågorna den här studien syftade till att besvara var om det är möjligt att bestämma den nuvarande ekologiska statusen med en begränsad tillgång till data. Studien visade att det är möjligt men att osäkerhetsnivån i resultatet kommer att vara stort. Studien visade även att modellen Desktop Reserve Model kan användas för snabba beräkningar av det miljöanpassade flödet, men att mer utförliga studier som till exempel Building Block Methodology måste genomföras innan resultatet med säkerhet kan verifieras. Relationen mellan ekologiska förändringar och flödesvariationer måste utredas i detalj för studieområdet innan de miljö­anpassade flödesbehoven kan bli implementerade med framgång.
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Tse, Rosanna. "A critical assessment of two phase flow characterization of soil". Thesis, Massachusetts Institute of Technology, 1997. http://hdl.handle.net/1721.1/28178.

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de, Macedo Soares Pires Condeixa Karina. "Material Flow Analysis and environmental impacts assessment of the construction sector in Brazil". Doctoral thesis, Universitat Rovira i Virgili, 2016. http://hdl.handle.net/10803/454715.

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L'ampli ús de materials als edificis contribueix a l'escassetat de recursos naturals i a l'abocament de residus al medi ambient. L'Anàlisi del Flux de Materials (MFA) s'ha utiliyat com a eina per aconseguir a desmaterialització i la sostenibilitat dels edificis existents. Aquesta tesi s'organitza en tres capitols principals. El primer capitol presenta una revisi bibliogràfica i un anàlisi bibliometric per recolyar lus sistematic de MFA. El segon capitol proposa un metode basat en el MFA per a modelar la poblacio dels edificis residencials a la ciutat de Rio de Janeiro i el flux de materials de residus, per tal de caracteritzar lstock d'edificis. El tercer capitol introdueix lus combinat de les metodologies d'Anàlisi de Ciclo de Vida i MFA per a modelar els fluxos residuales de la poblacio d'edificis i per a avaluar els seus impactes de cicle de vida. En resum, aquesta tesi explora les variants de la metodologia d'Anàlisi de Flux de Materials i promou un ampli anàlisi dels edificis i dels impactes de cicle de vida dels fluxos de residus.
El amplio uso de materiales en los edificios contribuye a la escasez de recursos naturales y al vertido de residuos en el medio ambiente. El Análisis del Flujo de Materiales (MFA) se ha utilizado como una herramienta para lograr la desmaterialización y la sostenibilidad de los edificios existentes. Esta tesis se organiza en tres capitulos principales. El primer capítulo presenta una revisión bibliográfica y un análisis bibliométrico para apoyar el uso sistemático del MFA. El segundo capítulo propone un método basado en el MFA para modelar la población de los edificios residenciales en la ciudad de Río de Janeiro, y el flujo de materiales y de residuos, con el fin de caracterizar el stock de edificios. El tercer capítulo introcuce el uso combinado de las metodologías de Análisis de ciclo de Vida y MFA para modelar los flujos residuales de la población de edificios y para evaluar sus impactos. En resumen, esta tesis explora las variantes de la metodología de Análisis de Flujo de Materiales y promueve un amplio análisis de los edificios y de los impactos del ciclo de vida de los flujos de residuos.
The extensive use of materials in buildins stocks contributes to the scarcity of natural resources and waste disposal on the environment. Material Flow Analysis (MFA) has been used as a tool to achieve dematerialization and sustainability of buildings stocks. This thesis is organized in three main chapters. The first chapter presents a literature review and a bibliometric analysis for supprting the systematic use of MFA. The second chapter proposes a method based on MFA to model the residential building stock in the city of Rio de Janeiro and their material and waste flows, in order to characterize the stock. The third chapter introduces the combinated use if MFA and Life Cycle Assessment methodologies to model waste flows from a building stock and to assess its life cycle impacts. In summary, this Thesis explores the variants of the MFA and promotes a broadly analysis of a building stocks and life cycle impacts from waste flows.
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Poon, David. "Re-conceptualizing the soil and water assessment tool to better predict subsurface water flow through macroporous soils". Thesis, McGill University, 2013. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=119707.

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Efforts to manage eutrophication of surface waters should recognize that macropore flow transports significantly more phosphorus (P) to surface waters via tile drains than water that percolates through the soil matrix. For the watershed-scale SWAT (Soil and Water Assessment Tool) model to describe phosphorus transport through tile drains, SWAT needs to partition percolation into macropore flow and matrix flow. The objective of this study was to evaluate the effects of a new macropore flow algorithm on the partitioning of hydrological flows, using input data that are readily available, consistent with the current approach to SWAT modeling. The algorithm was evaluated in a proof of concept outside of SWAT and within a re-conceptualized version, SWAT-QC2. The proof of concept reproduced episodic macropore flows, which increased with greater daily rainfall if infiltration exceeded a threshold that was lower for finer-textured soils. Although the algorithm did not improve predictions of streamflow of an agricultural subwatershed in southern Quebec (30 km2), the algorithm improved SWAT's partitioning between surface runoff and subsurface flow. SWAT-QC2 also predicted reasonably the separation between macropore and matrix components of subsurface flow, upon comparison with results from a chemical-based hydrograph separation of the subwatershed's streamflow. As in the proof of concept, the predicted amount of macropore flow into tile drains was greater under finer-textured soils than coarser-textured soils. By describing the portion of percolation that flows through macropores and potentially controls subsurface P transport, the macropore flow algorithm provides a framework for future developments of SWAT that describe macropore transport of P to tile drains. To improve the partitioning between macropore and matrix flows, future developments of SWAT-QC2 should account for dynamic macropore connectivity and the effects of soil moisture on macropore flow, but more research is needed to determine experimentally the spatiotemporal variation of macropore flow in agricultural soils.
Les stratégies d'intervention ciblées sur la prévention de l'eutrophisation des eaux de surface en milieu agricole devraient prendre en compte que relativement plus de phosphore chemine vers les drains souterrains par les macropores du sol qu'en cheminement matriciel. Afin de décrire les phénomènes de transport de phosphore aux drains, le modèle hydrologique SWAT (Soil and Water Assessment Tool) doit être en mesure de distinguer ces processus de transfert. La présente étude avait pour objectif d'évaluer la performance d'un nouvel algorithme séparant les écoulements matriciels et préférentiels, en mettant à profit des jeux de données existantes et suivant une démarche compatible avec l'approche de modélisation inhérente à SWAT. L'algorithme a d'abord profité d'une validation conceptuelle, hors du modèle SWAT, puis d'une évaluation suivant son intégration à une nouvelle version du modèle hydrologique, SWAT-QC2. La validation conceptuelle de l'algorithme a démontré que les flux matriciels épisodiques prédits augmentent avec les précipitations journalières, à la condition que le taux d'infiltration ait atteint un seuil limite, relativement moins élevé en sol argileux. Bien que l'algorithme n'ait pas amélioré la prédiction du débit total d'un petit bassin versant du Sud du Québec (30 km2), il a néanmoins amélioré la performance du modèle SWAT à répartir les écoulements de surface et souterrains. La comparaison des prédictions du modèle hydrologique avec les résultats de séparation des hydrogrammes à l'exutoire du même bassin versant suivant une méthode chimique témoigne d'une performance réaliste de SWAT-QC2 à prédire la répartition des flux souterrains préférentiels et matriciels. A l'instar de la validation conceptuelle de l'algorithme, les flux préférentiels prédits sont relativement plus importants en sol argileux qu'en texture plus grossière. En décrivant la proportion des écoulements souterrains qui emprunte la voie préférentielle, et qui contrôle potentiellement les transferts souterrains de P, l'algorithme d'écoulement en macropores constitue une assise pour le développement ultérieur de SWAT intégrant une description des transferts souterrains de phosphore vers les drains souterrains. Afin d'améliorer la performance de SWAT-QC2 à séparer les flux préférentiels et matriciels, les développements futurs du modèle hydrologique devraient prendre en compte la nature dynamique de la connectivité des macropores, de même que les effets de l'humidité du sol sur l'écoulement préférentiel. Cette démarche appelle cependant à une meilleure caractérisation expérimentale de la variabilité spatio-temporelle des flux préférentiels en sols agricoles.
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Desai, Ahmed Yacoob. "Development of a hydraulic sub-model as part of a desktop environmental flow assessment method". Thesis, Rhodes University, 2012. http://hdl.handle.net/10962/d1006200.

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Countries around the world have been developing ecological policies to protect their water resources and minimise the impacts of development on their river systems. The concept of ‘minimum flows’ was initially established as a solution but it did not provide sufficient protection as all elements of a flow regime were found to be important for the protection of the river ecosystem. “Environmental flows” were developed to determine these flow regimes to maintain a river in some defined ecological condition. Rapid, initial estimates of the quantity component of environmental flows may be determined using the Desktop Reserve Model in South Africa. However, the Desktop Reserve Model is dependent upon the characteristics of the reference natural hydrology used. The advancements in hydraulic and ecological relationships from the past decade have prompted the development of a Revised Desktop Reserve Model (RDRM) that would incorporate these relationships. The research in this thesis presents the development of the hydraulic sub-model for the RDRM. The hydraulic sub-model was designed to produce a realistic representation of the hydraulic conditions using hydraulic parameters/characteristics from readily available information for any part of South Africa. Hydraulic data from past EWR studies were used to estimate the hydraulic parameters. These estimated hydraulic parameters were used to develop hydraulic estimation relationships and these relationships were developed based on a combination of regression and rule-based procedures. The estimation relationships were incorporated into the hydraulic sub-model of the integrated RDRM and assessments of the hydraulic outputs and EWR results were undertaken to assess the ‘applicability’ of the hydraulic sub-model. The hydraulic sub-model was assessed to be at a stage where it can satisfactorily be incorporated in the RDRM and that it is adequately robust in many situations. Recommendations for future work include the refinement of estimation of the channel forming discharge or the use of spatial imagery to check the maximum channel width estimation. It is also proposed that a future version of the hydraulic sub-model could include flow regime change impacts on channel geomorphology and sedimentology so that flow management scenarios can be more effectively assessed.
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Lundkvist, Markus. "Accident Risk and Environmental Assessment : Development of an Assessment Guideline with Examination in Northern Scandinavia". Doctoral thesis, Uppsala : Department of Social and Economic Geography, Uppsala University, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-5849.

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Franzén, Linda. "Water flow analysis of Jästbolaget : An assessment of the yeast production’s environmental impact, caused by its water consumption". Thesis, KTH, Industriell ekologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-147861.

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This bachelor thesis is carried out for the department of Industrial Ecology at the Royal Institute of Technology in Stockholm. Water in Sweden is a resource in abundance. Even so, it is an expensive one and may even become more expensive due to climate changes. Hence, there are for companies’ both economic and environmental benefits to induce minimization of the water flow. The aim of this report is to assess the sustainability of the water usage within the production of liquid, active dry and compressed fresh yeast which also goes under the common name of baking yeast. The assessment has been done through a water flow analysis in addition with a water footprint. The system borders for the water flow analysis comprises the outtake of water from Mälaren, the production at Jästbolaget and the final treatment at Käppala wastewater treatment plant. The water considered in the production is mainly the municipal-water flow within the production and to a less extent the water used for cooling. Substances contained in the water flow which are paid particular attention are the amount of total organic carbon, phosphorus and nitrogen. The method for gathering information and data has been through interviews and mail correspondence with employees at Jästbolaget and Käppala. Furthermore, a literature study has been conducted. The conclusion of this report is that the water flow has a low impact and that Jästbolaget has taken appropriate measures to minimize their impact and usage of water. However, improvements can always be made but it is rather a matter of the methods efficiency to further decrease the usage of water and emission of phosphorus and nitrogen.
Detta kandidatexamensarbete är utfört på institutionen för Industriell Ekologi på Kungliga Tekniska högskolan i Stockholm. Trots att Sveriges vattenresurser idag finns i överflöd är vatten en dyr resurs. I framtiden finns också risken att priset kommer att öka på grund av klimatförändringar. Detta beror på att kvalitén på våra vattentillgångar kan komma att minska vilket då leder till att vattnet behöver renas ytterligare. Det finns alltså redan idag men även kommande anledningar för företag att minska sin vattenkonsumtion. Utöver de ekonomiska fördelarna finns det även ett flertal med avseende på miljöpåverkan. Målet med denna rapport är att bedöma vattenflödets miljöpåverkan i produktionen av flytande, torr- och pressjäst, även kallade bakjäst. Bedömningen har utförts med hjälp av en vattenflödesanalys samt ett vattenfotavtryck. Systemgränserna innefattar uttaget av vatten från Mälaren, produktionen vid Jästbolaget och den slutgiltiga behandlingen vid Käppala reningsverk. De uppmärksammade ämnena i vattenflödet är totalt organiskt kol, fosfor och kväve. Information och data har blivit insamlat genom intervjuer och mejlkorrenspondens samt genom en litteraturstudie. Slutsatsen av detta projekt är att Jästbolagets vattenflöde har en låg miljöpåverkan och att Jästbolaget att vidtagit lämpliga åtgärder för att minska deras påverkan. Förbättringar kan dock alltid göras men i detta fall handlar det framförallt om att effektivisera de metoder de redan använder för att i största möjliga mån minska vattenanvändningen och utsläppen av fosfor och kväve.
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Whitley, Annie R. "Method Development for Detecting and Characterizing Manufactured Silver Nanoparticles in Soil Pore Water Using Asymmetrical Flow Field-Flow Fractionation". UKnowledge, 2012. http://uknowledge.uky.edu/pss_etds/9.

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Recent advances in nanotechnology have led to the production of materials with nanoscale dimensions (nm) and properties distinctly different from their bulk (>100 nm) counterparts. With increased use, it is inevitable that nanomaterials will accumulate in the environment and there is concern that the novel properties of nanomaterials could result in detrimental environmental and human health effects. In particular, there has been concern recently regarding the use of silver (Ag) based nanomaterials as antimicrobial agents in consumer and medical products. Current regulations dealing with the discharge of metals into the environment are based on total concentrations with no consideration for the form (e.g., ionic, nanoparticle, colloid) which can largely determine toxicity. Methods for the identification and characterization of nanoparticulates within complex matrices are lacking and the development of robust methods for this purpose are considered a high priority research area. This research focuses on the development and application of a novel method for characterizing Ag manufactured nanoparticles (MNPs) within terrestrial environments, in particular in soil pore water, with applications relevant to other metal MNPs as well. The method was then applied to understand the dynamics and behavior of Ag MNPs in soil and soil amended with sewage sludge biosolids.
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Assefa, Getachew. "On sustainability assessment of technical systems : experience from systems analysis with the ORWARE and EcoEffect tools /". Doctoral thesis, Stockholm : Division of Industrial Ecology, Deparment of Chemical Engineering, School of Chemical Science and Engineering, Royal Institute of Technology, 2005. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-550.

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Książki na temat "ENVIRONMENTAL FLOW ASSESSMENT"

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Smakhtin, V. Y. An assessment of environmental flow requirements of Indian River basins. Colombo: International Water Management Institute, 2006.

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Limited, Cumming Cockburn. Assessment of the biologically based low flow analysis technique. [Toronto]: Environment Ontario, Research and Technology Branch, 1990.

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Bari, M. F. Management of rivers for instream requirement and ecological protection: Introducing environmental flow assessment in Bangladesh, multidisciplinary collaborative research. [Dhaka]: BUET-DUT Linkage Project, 2006.

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United States. Federal Highway Administration. i Washington (State). Dept. of Transportation., red. SR 202, SR 520 to Sahalee Way NE additional lanes: Environmental assessment and programmatic 4(f) evaluation. [Olympia, Wash.?]: U.S. Dept. of Transportation, Federal Highway Administration, 2002.

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Stone, Asako. Assessment of citizen perceptions and knowledge for a groundwater monitoring network design. Las Vegas, Nev.]: Desert Research Institute, 2009.

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Unit, Joint UNEP/OCHA Environment. Environmental assessment: Hot mud flow, East Java, Indonsia : consolidated report on activities undertaken through the Joint UNEP/OCHA Environment Unit. Geneva: Joint UNEP/OCHA Environment Unit, 2006.

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United States. Federal Highway Administration. i Washington (State). Dept. of Transportation., red. SR 543: Interstate 5 to international boundary, Blaine, Whatcom County : environmental assessment. Olympia, Wash: Washington State Dept. of Transportation, 2000.

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Marti, Pam. Assessment of surface water and groundwater interchange in the Walla Walla River Watershed. Olympia, WA: Washington State Dept. of Ecology, Environmental Assessment Program, 2005.

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Unit, Joint UNEP/OCHA Environment. Environmental assessment: Hot mud flow, East Java, Indonsia : consolidated report on activities undertaken through the Joint UNEP/OCHA Environment Unit. Geneva: Joint UNEP/OCHA Environment Unit, 2006.

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Fitzgerald, Sharon A. Results of quality-control sampling of water, bed sediment, and tissue in the Western Lake Michigan Drainages study unit of the National Water-Quality Assessment Program. Middleton, Wis: U.S. Dept. of the Interior, U.S. Geological Survey, 1997.

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Części książek na temat "ENVIRONMENTAL FLOW ASSESSMENT"

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Kondolf, G. Mathias, Remi Loire, Hervé Piégay i Jean-Réné Malavoi. "Dams and channel morphology". W Environmental Flow Assessment, 143–61. Chichester, UK: John Wiley & Sons, Ltd, 2019. http://dx.doi.org/10.1002/9781119217374.ch8.

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Chandi Priya, P. N., Rehana Shaik i Rahul Kumar Singh. "Assessment of Environmental Flows of Tungabhadra River Using Global Environmental Flow Calculator". W Lecture Notes in Civil Engineering, 727–42. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-19-0304-5_51.

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Lu, Bao-Rong. "Assessing environmental impact of pollen-mediated transgene flow." W Gene flow: monitoring, modeling and mitigation, 1–25. Wallingford: CABI, 2021. http://dx.doi.org/10.1079/9781789247480.0001.

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Abstract Potential environmental impact caused by pollen-mediated transgene flow from commercially cultivated genetically engineered (GE) crops to their non-GE crop counterparts and to their wild and weedy relatives has aroused tremendous biosafety concerns worldwide. This chapter provides information on the concept and classification of gene flow, the framework of the environmental biosafety assessment caused by pollen-mediated gene flow, and relevant case studies about transgene flow and its environmental impact. In general, gene flow refers to the movement of genes or genetic materials from a plant population to other populations. Crop-to- crop transgene flow at a considerable frequency may result in transgene 'contamination' of non-GE crops, causing potential food/feed biosafety problems and regional or international trade disputes. Crop-to- wild/weedy transgene flow may bring about environmental impacts, such as creating more invasive weeds, threatening local populations of wild relative species, or affecting genetic diversity of wild relatives, if the incorporated transgene can normally express in the recipient wild/weedy plants and significantly alter the fitness of the wild/weedy plants and populations. It is therefore necessary to establish a proper protocol to assess the potential environmental impacts caused by transgene flow. Three steps are important for assessing potential environment impacts of transgene flow to wild/weedy relatives: (i) to accurately measure the frequencies of transgene flow: (ii) to determine the expression level of a transgene incorporated in wild/weedy populations; and (iii) to estimate the fitness effect (benefit or cost) conferred by expression of a transgene in wild/weedy populations. The recently reported case of non-random allele transmission into GE and non-GE hybrid lineages or experimental populations challenges the traditional method of estimating the fitness effect for the assessment of environmental impacts of transgene flow. Furthermore, case studies of transgenic mitigation (TM) strategies illustrate ways that may reduce the impacts of a transgene on wild/weedy populations if crop-to- wild/weedy transgene flow is not preventable, such as in the case of gene flow from crop rice to its co-occurring weedy rice.
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Sugumar, S., M. Chris Sheba i C. Gurumoorthy. "Assessment of Contaminant Reduction in Greywater using Horizontal Flow Constructed Wetland for Irrigation". W Environmental Degradation: Monitoring, Assessment and Treatment Technologies, 43–49. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-94148-2_4.

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Nie, Yinping, i Xiuzhen Li. "Debris Flow Susceptibility Assessment at a Regional Scale Based on Flow-R Model (China)". W Recent Advances in Geo-Environmental Engineering, Geomechanics and Geotechnics, and Geohazards, 441–44. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-030-01665-4_102.

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L’Abbate, Pasqua, Michele Dassisti i Abdul G. Olabi. "Small-Size Vanadium Redox Flow Batteries: An Environmental Sustainability Analysis via LCA". W Life Cycle Assessment of Energy Systems and Sustainable Energy Technologies, 61–78. Cham: Springer International Publishing, 2018. http://dx.doi.org/10.1007/978-3-319-93740-3_5.

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Prakasam, C., R. Saravanan i M. K. Sharma. "Assessment of Environmental Flow Requirements Through Rainfall-Runoff Modelling for Hydropower Project". W Lecture Notes in Civil Engineering, 231–49. Cham: Springer International Publishing, 2022. http://dx.doi.org/10.1007/978-3-030-96202-9_18.

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Reitberger, Bianca, i Matthew McCartney. "Concepts of Environmental Flow Assessment and Challenges in the Blue Nile Basin, Ethiopia". W Nile River Basin, 337–58. Dordrecht: Springer Netherlands, 2011. http://dx.doi.org/10.1007/978-94-007-0689-7_17.

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Padhee, S. K., V. Chembolu, A. Akkimi, K. K. Nandi, S. Dutta, Dibyendu Adhikari, Raghuvar Tiwary, Bikram Singh i Saroj K. Barik. "Holistic Environmental Flow Assessment by Building Block Method in Inaccessible Himalayan River Basins". W Lecture Notes in Civil Engineering, 49–67. Singapore: Springer Nature Singapore, 2022. http://dx.doi.org/10.1007/978-981-16-9933-7_4.

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Beggel, Sebastian, Joachim Pander i Jürgen Geist. "Ecological Indicators for Surface Water Quality - Methodological Approaches to Fish Community Assessments in China and Germany". W Terrestrial Environmental Sciences, 47–67. Cham: Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-80234-9_2.

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AbstractAssessments of aquatic ecosystem health rely increasingly on biological indicators such as fish community structure, but national approaches differ. To use bioindicators efficiently and to allow cross-country comparisons, standardized tools and methods are required. Within this study, currently applied procedures for stream ecosystem assessment in China and Germany are summarized and active and passive fish sampling methodologies used in both countries are investigated. The methodological comparison was based on the results of a joint Chinese German workshops within the SINOWATER project in 2016. A joint sampling campaign was then conducted in 2017 at 6 representative sites within 70 km of the Fan River, a tributary to the Liao River System in Liaoning province, China. Active methods comprised single-pass electrofishing methods as typically applied in Germany and China as well as seining. As passive methods, common minnow traps, gill-netting and longline-fishing were used. To allow the comparability between methods, a standardized sampling design comprising several replicates at each site was chosen, covering a range of different ecological stream conditions. By comparison of the different fishing methodologies, electrofishing yielded the best overall results to assess fish biodiversity in terms of species abundance, richness and catch per unit effort. Differences in the effectiveness of the different electrofishing approaches mostly depended on the power source used. To cover the full spectrum of the fish community and to detect very rare species, a combination of different active and passive methods was most useful. If electrofishing is the method of choice, it is very important to adjust the gear power to river specific conditions such as flow, size and depth. The results of this joint Chinese-German study may aid in the selection of suitable sampling methods for fish community assessments in the future.
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Streszczenia konferencji na temat "ENVIRONMENTAL FLOW ASSESSMENT"

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Navarro, Moses, Bruce Conger i Colin Campbell. "Exploration Extravehicular Activity Purge Flow Assessment". W 41st International Conference on Environmental Systems. Reston, Virigina: American Institute of Aeronautics and Astronautics, 2011. http://dx.doi.org/10.2514/6.2011-5220.

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Peart, J. A., i A. Bradford. "Ecological Flow Assessment Techniques for Headwater Reaches". W World Environmental and Water Resources Congress 2007. Reston, VA: American Society of Civil Engineers, 2007. http://dx.doi.org/10.1061/40927(243)116.

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Shopova, Donka, i Olga Nitcheva. "ASSESSMENT OF ENVIRONMENTAL FLOW REQUIREMENTS ACCORDING TO BULGARIAN WATER LAW". W 22nd SGEM International Multidisciplinary Scientific GeoConference 2022. STEF92 Technology, 2022. http://dx.doi.org/10.5593/sgem2022/3.1/s12.08.

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To maintain enough water in the river for ecosystems protection and river bed sanitation, water have to be allocated to ecosystems, as it is allocated to other users like domestic use and industry, agriculture and power generation. Water distribution is critical in dry periods. This requires proper determination of environmental flow (river ecosystem minimum permissible flow) by hydrology-based assessment methods. The purpose of this paper is to compare selected hydrological methods and to define the scientifically acceptable way to determine environmental flow within a section after the dam of some reservoirs in Bulgaria. As well as some critical reaches of the river network are determined where the necessary living environment for water communities is not provided. Here environmental flow is calculated using conventional hydrological methods: flow duration curve, the Q10% (average multiannual discharge) method and Q95% (yearly minimum monthly mean discharge with a 95% probability of occurrence) method, which are highlighted according to Bulgarian Water Law. In conclusion, the Q10% and Q95% methods allow obtaining environmental flow regimes on a monthly basis capable of adapting to the hydrological variability of the natural regime. The requirements and methods presented in the paper can be applied in the water management legislative process.
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Jianwei, Liu, Bian Li i Zhu Xiaobin. "Hazard assessment system for highway debris flow disasters". W International Conference on Civil, Transportation and Environmental Engineering (CTEE 12). Southampton, UK: WIT Press, 2013. http://dx.doi.org/10.2495/ctee120111.

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Amrit, Kumar, S. K. Kumre, S. K. Mishra i R. P. Pandey. "Assessment of Environmental Flow Condition in Indian River Basin Using SPI". W World Environmental and Water Resources Congress 2019. Reston, VA: American Society of Civil Engineers, 2019. http://dx.doi.org/10.1061/9780784482339.032.

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Sayed, Md Abu, i Aysha Akter. "Environmental flow assessment in water quality context – A case study". W 6TH INTERNATIONAL CONFERENCE ON CIVIL ENGINEERING FOR SUSTAINABLE DEVELOPMENT (ICCESD 2022). AIP Publishing, 2023. http://dx.doi.org/10.1063/5.0130700.

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Hajimirzaie, S. M., i J. A. González-Castro. "Field Assessment of the Flow Field in a Lateral Canal-Marsh Junction". W World Environmental and Water Resources Congress 2017. Reston, VA: American Society of Civil Engineers, 2017. http://dx.doi.org/10.1061/9780784480625.015.

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Liu, Jianwei, Li Bian, Zhicheng Zeng i Xiaobin Zhu. "General situation and hazard assessment of highway debris flow disasters". W International Conference on Civil, Transportation and Environmental Engineering (CTEE 12). Southampton, UK: WIT Press, 2013. http://dx.doi.org/10.2495/ctee120101.

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White, E. P., J. K. Langenfeld, E. L. Bradford, H. G. Haywood, C. Salvinelli i A. C. Elmore. "Assessment of Flow Rate as a Quality Control Test for Ceramic Pot Filters". W World Environmental and Water Resources Congress 2015. Reston, VA: American Society of Civil Engineers, 2015. http://dx.doi.org/10.1061/9780784479162.136.

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Wang, Xiekang, Shuyou Cao i Zhixue Guo. "An Assessment on Theoretical Techniques and Engineering Prevention of Debris Flow disaster in China". W World Water and Environmental Resources Congress 2005. Reston, VA: American Society of Civil Engineers, 2005. http://dx.doi.org/10.1061/40792(173)101.

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Raporty organizacyjne na temat "ENVIRONMENTAL FLOW ASSESSMENT"

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Water Management Institute, International. Rapid desktop assessments of environmental flows. International Water Management Institute (IWMI), 2010. http://dx.doi.org/10.5337/2011.0037.

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Russo, David, Daniel M. Tartakovsky i Shlomo P. Neuman. Development of Predictive Tools for Contaminant Transport through Variably-Saturated Heterogeneous Composite Porous Formations. United States Department of Agriculture, grudzień 2012. http://dx.doi.org/10.32747/2012.7592658.bard.

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The vadose (unsaturated) zone forms a major hydrologic link between the ground surface and underlying aquifers. To understand properly its role in protecting groundwater from near surface sources of contamination, one must be able to analyze quantitatively water flow and contaminant transport in variably saturated subsurface environments that are highly heterogeneous, often consisting of multiple geologic units and/or high and/or low permeability inclusions. The specific objectives of this research were: (i) to develop efficient and accurate tools for probabilistic delineation of dominant geologic features comprising the vadose zone; (ii) to develop a complementary set of data analysis tools for discerning the fractal properties of hydraulic and transport parameters of highly heterogeneous vadose zone; (iii) to develop and test the associated computational methods for probabilistic analysis of flow and transport in highly heterogeneous subsurface environments; and (iv) to apply the computational framework to design an “optimal” observation network for monitoring and forecasting the fate and migration of contaminant plumes originating from agricultural activities. During the course of the project, we modified the third objective to include additional computational method, based on the notion that the heterogeneous formation can be considered as a mixture of populations of differing spatial structures. Regarding uncertainly analysis, going beyond approaches based on mean and variance of system states, we succeeded to develop probability density function (PDF) solutions enabling one to evaluate probabilities of rare events, required for probabilistic risk assessment. In addition, we developed reduced complexity models for the probabilistic forecasting of infiltration rates in heterogeneous soils during surface runoff and/or flooding events Regarding flow and transport in variably saturated, spatially heterogeneous formations associated with fine- and coarse-textured embedded soils (FTES- and CTES-formations, respectively).We succeeded to develop first-order and numerical frameworks for flow and transport in three-dimensional (3-D), variably saturated, bimodal, heterogeneous formations, with single and dual porosity, respectively. Regarding the sampling problem defined as, how many sampling points are needed, and where to locate them spatially in the horizontal x₂x₃ plane of the field. Based on our computational framework, we succeeded to develop and demonstrate a methdology that might improve considerably our ability to describe quntitaively the response of complicated 3-D flow systems. The results of the project are of theoretical and practical importance; they provided a rigorous framework to modeling water flow and solute transport in a realistic, highly heterogeneous, composite flow system with uncertain properties under-specified by data. Specifically, they: (i) enhanced fundamental understanding of the basic mechanisms of field-scale flow and transport in near-surface geological formations under realistic flow scenarios, (ii) provided a means to assess the ability of existing flow and transport models to handle realistic flow conditions, and (iii) provided a means to assess quantitatively the threats posed to groundwater by contamination from agricultural sources.
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Hadley, Isabel. PR164-205102-R01 Application of Probabilistic Fracture Mechanics to Engineering Critical Assessment. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), kwiecień 2021. http://dx.doi.org/10.55274/r0012093.

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This report summarizes the results of a series of deterministic and probabilistic fracture and fatigue calculations carried out in order to: ? Demonstrate that ProCW correctly implements probabilistic ECA, eg by comparing selected deterministic and probabilistic calculations, ? Show the effect of the choice of K-solution on the fatigue life and POF of pipes containing a circumferential flaw, ? Implement a two-stage probabilistic model of fatigue crack growth, in both air and marine environments, ? Consider the effects of modelling the fatigue crack growth threshold probabilistically, ? Demonstrate the use of ProCW for a representative riser geometry and a complex loading spectrum, ? For the same riser geometry/loading scenario, compare the POF implied by the use of design fatigue safety factors given in DNVGL-ST-F101 [2], DNVGL-RP-F204 [3] and DNVGL-RP-F201 [4] with the POF calculated directly from probabilistic calculations. There is a related webinar.
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Quarry, Mike. PR-462-143703-R01 Development and Evaluation of Guided Wave Structural Health Monitoring for Buried Pipe. Chantilly, Virginia: Pipeline Research Council International, Inc. (PRCI), maj 2019. http://dx.doi.org/10.55274/r0011594.

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Excavations to inspect buried piping are often costly and risk damaging other plant assets during the digging. Some utilities have used permanently installed guided wave sensors to monitor piping condition and reduce the excavations. The project that is the subject of this report has two objectives-to evaluate the current state-of-the-art and to create a test bed for vendors to improve their technology and data analysis algorithms. Understanding the state-of-the-art will enable utilities to effectively use guided wave structural health monitoring in support of their underground piping aging management plans and their license renewal activities. Guided wave effectiveness in buried pipe applications depends on many variables, including coating, backfill, temperature, soil moisture, and environmental noise. An important aspect of monitoring is the effectiveness of data analysis algorithms in distinguishing changes in data due to damage to the pipe wall from those resulting from the environment. A buried mockup was constructed with common coatings and backfills, and two vendors installed commercially available guided wave systems. An initial flaw set was initiated in the mockup. Then, about every three months, holes were dug to modify some existing flaws, initiate new flaws, and leave some unchanged. Data were collected over a timeframe that included all four seasons. Damage was generally initiated with grinding tools to produce irregular shapes and sizes and to simulate corrosion. Flaws were characterized with a structured white light camera technology. Flaw information was kept confidential from the vendors until all data were complete and vendors had provided their assessment of the mockup at each stage. After the results were reviewed with the vendors, the flaw information at each stage was provided to the vendors for continued development of their technology. This enables the vendors to conduct lessons learned and improve their procedures, data analysis algorithms, and hardware designs. Utility operators can use the results of this report to better apply guided wave structural health monitoring technology. Benefits will also result from lessons learned and improvements by vendors. It is better for vendors to learn about needed improvements and data analysis through a test bed than to find them out in the field. The buried pipe mockup also provides a potential test bed for future studies and evaluations of structural health monitoring technologies or in-line pipe devices.
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Environmental assessment for the natural fluctuation of water level in Par Pond and reduced water flow in Steel Creek below L-Lake at the Savannah River Site. Office of Scientific and Technical Information (OSTI), sierpień 1995. http://dx.doi.org/10.2172/201732.

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Assessment of environmental flows for river health. International Water Management Institute (IWMI), 2019. http://dx.doi.org/10.5337/2019.005.

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Guidelines for Transboundary Environmental Impact Assessment in the Lower Mekong River Basin (TbEIA). Vientiane, Lao PDR: Mekong River Commission Secretariat, luty 2023. http://dx.doi.org/10.52107/mrc.aqrsbk.

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The Guidelines for Transboundary Environmental Impact Assessment in the Lower Mekong River Basin (TbEIA) is designed as a flexible document with perspective of its further elaboration based on gradually accumulated experience of Member Countries with a TbEIA application. It is also designed as a supporting tool applicable with respect to the different national EIA legislation systems in Member Countries. It builds on and supplements five MRC procedures, including the Procedures for Notification, Prior Consultation and Agreement; Procedures for Data and Information Exchange and Sharing; Procedures for Water Use Monitoring; Procedures for Maintenance of Flows on the Mainstream, and Procedures for Water Quality in addressing potential transboundary environmental impacts of development projects.
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