Literatura académica sobre el tema "Mobile dunes"

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Artículos de revistas sobre el tema "Mobile dunes"

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Pedrosa, Adriana Albuquerque, Vanda Carneiro de Claudino Sales, Itabaraci Nazareno Cavalcante, and Alexandre Medeiros de Carvalho. "MORFOGÊNESE E GEODINÂMICA DAS DUNAS COSTEIRAS DE CANOA QUEBRADA, CEARÁ, BRAZIL." Revista da Casa da Geografia de Sobral (RCGS) 21, no. 2 (2019): 1119–31. http://dx.doi.org/10.35701/rcgs.v21n2.493.

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Este trabalho apresenta uma análise da geodinâmica e morfogênese do campo de dunas na região de Canoa Quebrada, localizada no município do Aracati, inserido no Estado do Ceará. Abrange a área formada pela planície flúvio-marinha, faixa de praia e campo de dunas localizados na margem direita da foz do rio Jaguaribe. O recorte temporal avaliado corresponde à análise da dinâmica do campo de dunas com base nas taxas de migração no período de 1988 a 2013. Os objetivos dessa pesquisa foram analisar a dinâmica ambiental do campo de dunas móveis em direção ao ecossistema manguezal localizado na foz do
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Bird, Tania Leah Fairfax, Amos Bouskila, Elli Groner, and Pua Bar Kutiel. "Can Vegetation Removal Successfully Restore Coastal Dune Biodiversity?" Applied Sciences 10, no. 7 (2020): 2310. http://dx.doi.org/10.3390/app10072310.

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Coastal dune habitats have been declining globally over the last several decades due to rapid urbanization. Within remaining dune systems, dune fixation has resulted in further losses of mobile dunes with negative impacts on their associated species. Some studies suggest vegetation removal can initially promote habitat heterogeneity, and increase availability of suitable habitats for psammophile, xeric and endemic mobile dune species, but longer-term responses are generally unknown. We investigated the temporal trends of four taxonomic groups to determine the effect of vegetation removal on du
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Putten, W. H. Van der, and S. R. Troelstra. "Harmful soil organisms in coastal foredunes involved in degeneration of Ammophila arenaria and Calammophila baltica." Canadian Journal of Botany 68, no. 7 (1990): 1560–68. http://dx.doi.org/10.1139/b90-200.

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The presence of harmful soil organisms in the root zone of Ammophila arenaria (marram grass) was examined by biotesting. For this investigation three locations along the sandy shoreline of The Netherlands were chosen: Voorne, Texel, and Schouwen. At all three locations harmful organisms were detected in sand from stable dunes, as well as in sand from mobile dunes (degenerated and vigorous A. arenaria, respectively). In beach sand, however, no harmful organisms occurred. Since A. arenaria shows vigorous growth only when it is buried regularly by windblown sand from the beach, it is concluded th
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Pedrosa, Adriana Albuquerque, Vanda Claudino-Sales, IItabaraci Nazareno Cavalcante, and Alexandre Medeiros Carvalho. "Recent Dune Migration Along the Coastal Plain of Canoa Quebrada, Ceará State, Northeast Brazil." Journal of Environmental Geography 12, no. 1-2 (2019): 23–32. http://dx.doi.org/10.2478/jengeo-2019-0003.

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Abstract In the coastal area of Ceará State, northeast Brazil, there are large mobile dunefields, including barchans, barchanoid dunes and sandsheets. The migration rate of these dunes, as measured by several studies, varies between 32 m/y and 9 m/y. This paper analyzes the migration of the dunes in Canoa Quebrada Beach, located in the eastern coast of Ceará State, using remote sensing of aerial photos and satellite imagery from 1988 to 2013 (25 years). The resulting data indicate an average migration rate varying from 1.8 m/y to 9.3 m/y. This is the lowest rate of migration measured for large
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Molina, Rosa, Giorgio Manno, Carlo Lo Re, and Giorgio Anfuso. "Dune Systems’ Characterization and Evolution in the Andalusia Mediterranean Coast (Spain)." Water 12, no. 8 (2020): 2094. http://dx.doi.org/10.3390/w12082094.

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This paper deals with the characterization and evolution of dune systems along the Mediterranean coast of Andalusia, in the South of Spain, a first step to assess their relevant value in coastal flood protection and in the determination of sound management strategies to protect such valuable ecological systems. Different dune types were mapped as well as dune toe position and fragmentation, which favors dune sensitivity to storms’ impacts, and human occupation and evolution from 1977 to 2001 and from 2001 to 2016. Within a GIS (Geographic Information System) project, 53 dune systems were mappe
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Bar Kutiel, Pua, and Michael Dorman. "The Importance of Annual Plants and Multi-Scalar Analysis for Understanding Coastal Dune Stabilization Process in the Mediterranean." Applied Sciences 11, no. 6 (2021): 2821. http://dx.doi.org/10.3390/app11062821.

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Since ecological phenomena and patterns vary with scale, scalar analysis is a developing practice in ecology. Scalar analysis is most valuable in heterogeneous environments, since habitat heterogeneity is a key factor in determining biodiversity. One such case can be seen in the changes in annual vegetation in coastal sand dune systems. Most studies in these environments are carried out at the dune scale, comparing dunes at different stabilization states. However, a broader understanding of dune stabilization processes requires analyses at the finer scales of dune slope aspects (directions of
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Durán, O., V. Schwämmle, P. G. Lind, and H. J. Herrmann. "Size distribution and structure of Barchan dune fields." Nonlinear Processes in Geophysics 18, no. 4 (2011): 455–67. http://dx.doi.org/10.5194/npg-18-455-2011.

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Abstract. Barchans are isolated mobile dunes often organized in large dune fields. Dune fields seem to present a characteristic dune size and spacing, which suggests a cooperative behavior based on dune interaction. In Duran et al. (2009), we propose that the redistribution of sand by collisions between dunes is a key element for the stability and size selection of barchan dune fields. This approach was based on a mean-field model ignoring the spatial distribution of dune fields. Here, we present a simplified dune field model that includes the spatial evolution of individual dunes as well as t
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Costa, César S. B., Ulrich Seeliger, and César V. Cordazzo. "Leaf demography and decline of Panicum racemosum populations in coastal foredunes of southern Brazil." Canadian Journal of Botany 69, no. 7 (1991): 1593–99. http://dx.doi.org/10.1139/b91-203.

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We studied the effect of nutrient status and sand movement on the population biology of Panicum racemosum Spreng. over a 5-year period (1982–1986) on mobile, semifixed and fixed coastal foredune habitats in southern Brazil. The soils were deficient in nitrate, phosphate, and potassium (<0.5, 0.2–1.2, and 3–5 mg/kg, respectively) in all habitats, and a gradient of decreasing availability existed from the mobile to the fixed dunes. Half-lives of leaves were shorter in the fixed dune as compared with the mobile dune. Similarly, half-lives of leaves were shorter in summer than in winter. Experi
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Feng, Xiao, Jianjun Qu, Qingbin Fan, Lihai Tan, and Zhishan An. "Characteristics of Desertification and Short-Term Effectiveness of Differing Treatments on Shifting Sand Dune Stabilization in an Alpine Rangeland." International Journal of Environmental Research and Public Health 16, no. 24 (2019): 4968. http://dx.doi.org/10.3390/ijerph16244968.

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Rangeland desertification is one of the most serious problems threatening the ecological environment and socio-economic development on the eastern Qinghai-Tibet Plateau in China. To combat desertification and reduce its adverse effects, some strategies have been undertaken to stabilize the mobile sand dunes and restore the desertified land. In this study, rangeland desertification with a gradient degree of none, light, medium, severe and extreme was assessed, and short-term effectiveness of different treatments on stabilizing the shifting sand dunes was evaluated by monitoring selected vegetat
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Urbis, Arvydas, Ramūnas Povilanskas, Rasa Šimanauskienė, and Julius Taminskas. "Key Aesthetic Appeal Concepts of Coastal Dunes and Forests on the Example of the Curonian Spit (Lithuania)." Water 11, no. 6 (2019): 1193. http://dx.doi.org/10.3390/w11061193.

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The main objective of the study was to elicit key concepts determining the aesthetic appeal of coastal dunes and forests using the example of the Curonian Spit (Lithuania). The mixed approach included three methods: (1) paired comparison survey of 45 coastal landscapes, (2) semi-structured interviews with local inhabitants, and (3) eliciting the key aesthetic appeal concepts by a panel of experts using the Delphi technique. The results of the paired comparison survey show that the most aesthetically appealing landscapes of the Curonian Spit are: (1) white mobile dunes, (2) white dunes with gre
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Tesis sobre el tema "Mobile dunes"

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GastÃo, Francisco Gleidson da Costa. "CaracterizaÃÃo dos lenÃÃis maranhenses e dunas inativas (fÃsseis): implicaÃÃes paleoambientais." Universidade Federal do CearÃ, 2010. http://www.teses.ufc.br/tde_busca/arquivo.php?codArquivo=6986.

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Conselho Nacional de Desenvolvimento CientÃfico e TecnolÃgico<br>MudanÃas climÃticas na escala de tempo de sÃculos ou dÃcadas podem produzir variaÃÃes ecolÃgicas significativas, alterando os cenÃrios naturais do globo terrestre, assim como, comprometer o bem estar do homem e de outros seres vivos no planeta, por isso, torna -se importante estudar as evoluÃÃes climÃticas durante o perÃodo QuaternÃrio, pois se conhecido as alteraÃÃes do clima no passado recente pode-se, com mais seguranÃa, determinar as condiÃÃes futuras. Os campos de dunas eÃlicas inativas, com extensÃes regionais, tÃm sido con
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Al-Dousari, Ali M. "Sedimentological, geomorphological and mineralogical characteristics of mobile sand and anchored dunes in northwestern Kuwait." Thesis, Royal Holloway, University of London, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.401232.

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Malta, J?lia Varella. "Experimento de fluxo de sedimentos em um segmento de campo de dunas e?licas costeiras de Jenipabu - Litoral oriental do Rio Grande do Norte." Universidade Federal do Rio Grande do Norte, 2012. http://repositorio.ufrn.br:8080/jspui/handle/123456789/18831.

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Made available in DSpace on 2015-03-13T17:08:35Z (GMT). No. of bitstreams: 1 JuliaVM_DISSERT.pdf: 4236567 bytes, checksum: be73f658e3777fffb5d25f1a4d23b8d3 (MD5) Previous issue date: 2012-09-06<br>Coordena??o de Aperfei?oamento de Pessoal de N?vel Superior<br>This study analyzed measurements of the aeolian transport using vertical sand traps across the field dunes of Jenipabu, in the municipality of Extremoz, Rio Grande do Norte state to the North of Natal city. These measurements were used as parameters for the sand aeolian transport in the region. Before the field trips a map of landscape
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Lázničková-Gonyševová, Martina. "Analyse technologique et stylistique d'art mobilier magdalénien sur matières dures animales : Sites de Pekárna, Rytířská et Křížová (Moravie, République tchèque), Laugerie Basse et Enlène (Sud-ouest de la France)." Paris, Muséum national d'histoire naturelle, 2001. http://www.theses.fr/2001MNHN0026.

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Le technocomplexe magdalénien se développe en Europe au Pléniglaciaire supérieur entre 17 000 et 12 0500 BP. Il s'étend de l'Europe occidentale (concentration dans les Cantabres, les Pyrénées et en Dordogne) jusqu'à l'Europe centrale (Petite Pologne, Moravie). Nos analyses ont porté sur des objets d'art mobilier en matières dures animales, associés à différents faciès du technocomplexe magdalénien et provenant du Sud-ouest de la France (Laugerie Basse, Enlène) et de Moravie (Pekárna, Křížová, Rytířská) en République tchèque. L'analyse technologique et stylistique complétée par l'étude typologi
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Libros sobre el tema "Mobile dunes"

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Faenza, Vincenzo. Dune mobili e desertificazione. Trieste scientific press, 1989.

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Capítulos de libros sobre el tema "Mobile dunes"

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Warren, A. "Sand dunes: Highly mobile and unstable surfaces." In Engineering Characteristics of Arid Soils. CRC Press, 2020. http://dx.doi.org/10.1201/9781003077787-8.

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Kar, AmaL. "Present-day mobile crescentic dunes in the Thar desert, India." In Quaternary Deserts and Climatic Change. CRC Press, 2020. http://dx.doi.org/10.1201/9781003077862-16.

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"SD5: Leymus arenarius mobile dune community." In British Plant Communities. Cambridge University Press, 2000. http://dx.doi.org/10.1017/cbo9780511541834.039.

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"SD6: Ammophila arenaria mobile dune community." In British Plant Communities. Cambridge University Press, 2000. http://dx.doi.org/10.1017/cbo9780511541834.040.

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"Annexe 4. Détail du mobilier métallique et en matières dures d’origine animale, par catégories fonctionnelles." In Fouilles à Marseille. Publications du Centre Camille Jullian, 2014. http://dx.doi.org/10.4000/books.pccj.3711.

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Actas de conferencias sobre el tema "Mobile dunes"

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Wren, Daniel G., Roger A. Kuhnle, and Christopher Wilson. "Velocity and Suspended-Sediment Measurements over Mobile Sand Dunes in a Laboratory Flume." In World Water and Environmental Resources Congress 2005. American Society of Civil Engineers, 2005. http://dx.doi.org/10.1061/40792(173)452.

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Louge, Michel, Renee Richer, Ali Sultan, et al. "Temperature And Humidity Within A Mobile Barchan Desert Sand Dune." In Qatar Foundation Annual Research Conference Proceedings. Hamad bin Khalifa University Press (HBKU Press), 2014. http://dx.doi.org/10.5339/qfarc.2014.eepp0586.

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Abdul Majid, Sara, Aspasía Chatziefthymiou, Anthony Hay, Michel Louge, and Renee Richer. "A Qatari Barchan Dune: Is It A Mobile Island Habitat For Scincus Mitranus?" In Qatar Foundation Annual Research Conference Proceedings. Hamad bin Khalifa University Press (HBKU Press), 2014. http://dx.doi.org/10.5339/qfarc.2014.eepp0880.

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Informes sobre el tema "Mobile dunes"

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Conery, Ian, Nicholas Cohn, Nicholas Spore, and Katherine Brodie. Evaluating Collection Parameters for Mobile Lidar Surveys in Vegetated Beach-Dune Settings. Engineer Research and Development Center (U.S.), 2020. http://dx.doi.org/10.21079/11681/37759.

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Coastal Lidar And Radar Imaging System (CLARIS) mobile terrestrial lidar survey along the Outer Banks, North Carolina in Currituck and Dare counties. Coastal and Hydraulics Laboratory (U.S.), 2020. http://dx.doi.org/10.21079/11681/39419.

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The Coastal Observation and Analysis Branch (COAB) located at the Field Research Facility (FRF) conducts quarterly surveys and post-storm surveys along up to 60 kilometers of coastline within the vicinity of the FRF to assess, evaluate, and provide updated observations of the morphology of the foreshore and dune system. The surveys are conducted using a mobile terrestrial LiDAR scanner coupled with an Inertial Navigation System (INS). Traditionally the surveys coincide with a low tide, exposing the widest swath of visible sediment to the scanner as well as enough wind-sea swell or texture to i
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Coastal Lidar And Radar Imaging System (CLARIS) mobile terrestrial lidar survey along the Outer Banks, North Carolina in Currituck and Dare counties. Coastal and Hydraulics Laboratory (U.S.), 2020. http://dx.doi.org/10.21079/11681/39419.

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The Coastal Observation and Analysis Branch (COAB) located at the Field Research Facility (FRF) conducts quarterly surveys and post-storm surveys along up to 60 kilometers of coastline within the vicinity of the FRF to assess, evaluate, and provide updated observations of the morphology of the foreshore and dune system. The surveys are conducted using a mobile terrestrial LiDAR scanner coupled with an Inertial Navigation System (INS). Traditionally the surveys coincide with a low tide, exposing the widest swath of visible sediment to the scanner as well as enough wind-sea swell or texture to i
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