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Artículos de revistas sobre el tema "Mobile dunes"

Autor: Grafiati

Publicado: 4 de junio de 2021

Última modificación: 5 de febrero de 2022

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1

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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2

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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3

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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4

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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5

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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6

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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7

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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8

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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9

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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10

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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11

Neuhaus, R. "Mobile dunes and eroding salt marshes." Helgoländer Meeresuntersuchungen 48, no. 2-3 (1994): 343–58. http://dx.doi.org/10.1007/bf02367046.

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12

Liu, Rentao, Halin Zhao, Xueyong Zhao, Xiaoan Zuo, and Sam Drake. "Soil macrofaunal response to sand dune conversion from mobile dunes to fixed dunes in Horqin sandy land, northern China." European Journal of Soil Biology 45, no. 5-6 (2009): 417–22. http://dx.doi.org/10.1016/j.ejsobi.2009.06.006.

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13

Terrasson, D. "Commentaire Regards fragmentés sur dunes mobilesCommentary And if the dunes were left mobile?" Nature Sciences Sociétés 11, no. 3 (2003): 295–97. http://dx.doi.org/10.1016/s1240-1307(03)00087-6.

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14

Anglister, Nili, Yoram Yom-Tov, and Uzi Motro. "The impact of Acacia saligna and the loss of mobile dunes on rodent populations: a case study in the Ashdod-Nizzanim sands in Israel." Israel Journal of Plant Sciences 66, no. 3-4 (2019): 162–69. http://dx.doi.org/10.1163/22238980-00001049.

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The Mediterranean coastal dune habitat of Israel is diminishing rapidly, mostly due to massive urbanization, changes in habitat characteristics caused by dune stabilization and the presence of Acacia saligna, an invasive species brought to Israel for the purpose of dune stabilization. In this study we document the effect of sand stabilization on the composition of small mammal communities in the Ashdod-Nizzanim sands, Israel. We analyzed differences in species diversity and abundance for species of rodents in four types of habitat: unstable (mobile) sand dune, semi-stabilized dune, inter-dune

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15

Muñoz-Reinoso, José Carlos. "Doñana mobile dunes: what is the vegetation pattern telling us?" Journal of Coastal Conservation 22, no. 4 (2018): 605–14. http://dx.doi.org/10.1007/s11852-018-0594-0.

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16

Gao, X., D. Zhang, O. Rozier, and C. Narteau. "Transport capacity and saturation mechanism in a real-space cellular automaton dune model." Advances in Geosciences 37 (April 22, 2014): 47–55. http://dx.doi.org/10.5194/adgeo-37-47-2014.

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Abstract. In a real-space cellular automaton dune model, individual physical processes such as erosion, deposition and transport are implemented by nearest neighbor interactions and a time-dependent stochastic process. Hence, the transport capacity, the saturation mechanism and the characteristic wavelength for the formation of dunes are emergent properties that can only be determined a posteriori from the output of the numerical simulations. Here we propose a simplified version of the model to establish asymptotic relations between the microscopic erosion-deposition-transport rate parameters

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17

Lubke, Roy A., and Jean Sugden. "Short-term changes in mobile dunes at Port Alfred, South Africa." Environmental Management 14, no. 2 (1990): 209–20. http://dx.doi.org/10.1007/bf02394038.

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18

Abdul Majid, Sara, Michel Louge, Anthony Hay, and Renee Richer. "Understanding the link between moisture dynamics and microbial activity in mobile dunes." Qatar Foundation Annual Research Forum Proceedings, no. 2012 (October 2012): EEP43. http://dx.doi.org/10.5339/qfarf.2012.eep43.

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19

Toro-Escobar, Carlos, Richard Voigt, Bruce Melville, Meng Chiew, and Gary Parker. "Riprap Performance at Bridge Piers Under Mobile-Bed Conditions." Transportation Research Record: Journal of the Transportation Research Board 1647, no. 1 (1998): 27–33. http://dx.doi.org/10.3141/1647-04.

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Design criteria for riprap at bridge piers in rivers is based on the specification of a size, gradation, and cover that does not fail under an appropriately chosen flood flow. Experimental tests of riprap performance at bridge piers to date have relied on a configuration for which the ambient bed is not mobilized, that is, clear-water conditions. In the field, however, riprap is, as a rule, subjected to mobile-bed conditions during floods. Recent experiments by three cooperating research groups (University of Auckland, Nanyang University, and St. Anthony Falls Laboratory) indicate a heretofore

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20

Nahon, Alphonse, Pere Molina, Marta Blázquez, Jennifer Simeon, Sylvain Capo, and Cédrik Ferrero. "Corridor Mapping of Sandy Coastal Foredunes with UAS Photogrammetry and Mobile Laser Scanning." Remote Sensing 11, no. 11 (2019): 1352. http://dx.doi.org/10.3390/rs11111352.

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Recurrent monitoring of sandy beaches and of the dunes behind them is needed to improve the scientific knowledge on their dynamics as well as to develop sustainable management practices of those valuable landforms. Unmanned Aircraft Systems (UAS) are sought as a means to fulfill this need, especially leveraged by photogrammetric and LiDAR-based mapping methods and technology. The present study compares different strategies to carry UAS photogrammetric corridor mapping over linear extensions of sandy shores. In particular, we present results on the coupling of a UAS with a mobile laser scanning

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21

Sharma, Varun, Louise Braud, and Michael Lehning. "Understanding snow bedform formation by adding sintering to a cellular automata model." Cryosphere 13, no. 12 (2019): 3239–60. http://dx.doi.org/10.5194/tc-13-3239-2019.

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Abstract. Cellular-automata-based modelling for simulating snow bedforms and snow deposition is introduced in this study. The well-known ReSCAL model, previously used for sand bedforms, is adapted for this purpose by implementing a simple sintering mechanism. The effect of sintering is first explored for solitary barchan dunes of different sizes and flow conditions. Three types of behaviour are observed: small barchans continue their motion without any perceptible difference while large barchans sinter immediately. Barchans of intermediate size split, leaving behind a sintered core and a small

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22

Fischer, T., A. Yair, and M. Veste. "Microstructure and hydraulic properties of biological soil crusts on sand dunes: a comparison between arid and temperate climates." Biogeosciences Discussions 9, no. 9 (2012): 12711–34. http://dx.doi.org/10.5194/bgd-9-12711-2012.

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Abstract. We studied the relationships between crust microstructure, infiltration and water holding capacity under arid and temperate conditions (Factor A: Climate) on biological soil crusts (BSCs) sampled along a~catena on mobile sand dunes (Factor B: Catena). The arid study site was located near Nizzana, Israel (precipitation: 86 mm a−1, PET: ~2500 mm a−1) and the temperate site near Lieberose, Germany (precipitation: 569 mm a−1, PET: ~780 mm a−1). BSCs were sampled near the dune crest, at the centre of the dune slope and at the dune base at each site. Scanning electron microscopy (SEM) was

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23

Baird, Thomas, Charlie Bristow, and Pieter Vermeesch. "Measuring Sand Dune Migration Rates with COSI-Corr and Landsat: Opportunities and Challenges." Remote Sensing 11, no. 20 (2019): 2423. http://dx.doi.org/10.3390/rs11202423.

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It has been over a decade since COSI-Corr, the Co-Registration of Optically Sensed Images and Correlation, was first used to produce a raster map of sand dune movement, however, no studies have yet applied it to the full Landsat archive. The orthorectified and geolocated Landsat Level-1 Precision Terrain (L1TP) products offer the opportunity to simplify the COSI-Corr pre-processing steps, allowing an automated workflow to be devised. In the Bodélé Depression, Chad, this automated workflow has calculated average dune speeds of 15.83 m/year and an increase in dune movement of 2.56 m/year ±12.58

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24

Hanmaiahgari, Prashanth Reddy, and Ram Balachandar. "Turbulence characteristics of open channel flow over non-equilibrium 3-D mobile dunes." Sādhanā 41, no. 9 (2016): 1019–37. http://dx.doi.org/10.1007/s12046-016-0537-0.

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25

Van der Putten, Wim, and Christine Van der Stoel. "Pathogenicity and host range of Heterodera arenaria in coastal foredunes." Nematology 8, no. 2 (2006): 255–63. http://dx.doi.org/10.1163/156854106777998700.

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AbstractIn coastal foredunes, the cyst nematode Heterodera arenaria has been supposed to play a role in degeneration of the pioneer grass Ammophila arenaria (marram grass). However, recent field surveys and field inoculation experiments suggested that the abundance of this cyst nematode is controlled by the host plant. Here, we test pathogenicity of H. arenaria by inoculating a range of densities of second-stage juveniles (J2) onto A. arenaria in sterilised soil. Plant root biomass was reduced after 6 weeks of growth, but not after 13 weeks, when cyst formation was completed. Shoot biomass was

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26

HIBILIK, Nawal. "Mycorrhizal status of Eryngium maritimum in the mobile dunes of Mehdia (Northwest of Morocco)." International Journal of Pure & Applied Bioscience 4, no. 1 (2016): 35–44. http://dx.doi.org/10.18782/2320-7051.2196.

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27

Yan, Na, and Andreas C. W. Baas. "Transformation of parabolic dunes into mobile barchans triggered by environmental change and anthropogenic disturbance." Earth Surface Processes and Landforms 43, no. 5 (2018): 1001–18. http://dx.doi.org/10.1002/esp.4299.

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28

Millington, Jennifer A., Colin A. Booth, Michael A. Fullen та ін. "THE ROLE OF LONG‐TERM LANDSCAPE PHOTOGRAPHY AS A TOOL IN DUNE MANAGEMENT/ILGALAIKIS KRAŠTOVAIZDŽIO FOTOGRAFAVIMAS KAIP PRIEMONĖ NUMATANT KOPŲ VALDYMĄ/МНОГОЛЕТНЕЕ ФОТОГРАФИРОВАНИЕ ЛАНДШАФТА КАК СПОСОБ СЛЕЖЕНИЯ ЗА ДЮНАМИ". JOURNAL OF ENVIRONMENTAL ENGINEERING AND LANDSCAPE MANAGEMENT 17, № 4 (2009): 253–60. http://dx.doi.org/10.3846/16486897.2009.17.ia-ih.

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Attitudes to maintaining dune diversity are changing under the realization that existing dune stabilization techniques are fixing dune landscapes, causing ‘coastal squeeze’ and loss of habitat as shorelines retreat. Instead, it is recommended that a natural, dynamic, migrating dune system is much more appropriate and that blown, unstable sands are encouraged to act as mobile coastal defence barriers. Lack of appropriate monitoring techniques has limited progress in understanding the role of sediment dynamics in dune environments over long timescales. Therefore, this paper outlines the role of

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WREN, Daniel G., and Roger A. KUHNLE. "Measurements of coupled fluid and sediment motion over mobile sand dunes in a laboratory flume." International Journal of Sediment Research 23, no. 4 (2008): 329–37. http://dx.doi.org/10.1016/s1001-6279(09)60004-4.

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Silveira, Adely Pereira, Fábio Perdigão Vasconcelos, and Vanda Carneiro de Claudino Sales. "ANÁLISE DA EVOLUÇÃO TEMPORAL E DA DINÂMICA SEDIMENTAR DA DUNA DO PÔR DO SOL, JERICOACOARA, CEARÁ – BRASIL." Revista da Casa da Geografia de Sobral (RCGS) 21, no. 2 (2019): 656–73. http://dx.doi.org/10.35701/rcgs.v21n2.562.

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No presente trabalho voltamos nossa atenção para as dunas móveis que são interfaces litorâneas, áreas continuamente modeladas pelas ações dos ventos e das ondas, importantes reservatórios de sedimentos que atuam na manutenção do fluxo sedimentar da faixa praial. Partindo deste universo, concentramos nossos estudos na Praia de Jericoacoara, município de Jijoca de Jericoacoara-CE, tendo como objetivo analisar a dinâmica morfossedimentar da Duna do Pôr do Sol na Praia de Jericoacoara, a partir da análise temporal de imagens de satélites; realização de perfis de praia, cálculo do grau de declivida

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31

Çakan, Halil, K. Tuluhan Yilmaz, and Atabay Düzenli. "First comprehensive assessment of the conservation status of the flora of the Çukurova Deltas, southern Turkey." Oryx 39, no. 1 (2005): 17–21. http://dx.doi.org/10.1017/s0030605305000049.

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The Çukurova Deltas on the southern coast of Turkey, with their high biodiversity, are one of the most important wetland and RAMSAR sites in the eastern Mediterranean basin. The total native flora comprises 600 plant taxa, including many endemic and threatened taxa. In an examination of this flora, 62 taxa (31 endemic and 31 rare taxa for Turkey) were categorized as having restricted distributions and being under threat of extinction. To assess the conservation status of the threatened flora, the IUCN Red List categories and criteria were applied at both a regional and global scale. The distri

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32

PIVEL, MARÍA ALEJANDRA GÓMEZ, NIKOLAI SPERANSKI, and LAURO JÚLIO CALLIARI. "A Erosão Praial na Costa Atlântica Uruguaia." Pesquisas em Geociências 28, no. 2 (2001): 447. http://dx.doi.org/10.22456/1807-9806.20319.

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The Uruguayan Atlantic coast is wave dominated. It appears as a sequence of beaches built between rocky headlands showing all ranges of morphodynamic behaviors from reflective to dissipative. Several beaches are undergoing erosion. All of them coincide with urbanized areas. In most cases the causes have not been established yet but there is no doubt that human activities have contributed to such problems. This fact raises the question about the nature of the erosion process. Does location of beaches under erosion on urbanized areas prove the man-induced origin of it? This paper discusses the p

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Alliau, Damien, Sébastien Roux, and Léa Parelle. "Apports de la modélisation physique avec distorsions pour l'analyse des cours d'eau sableux : exemple de la Loire aval." La Houille Blanche, no. 2 (April 2020): 14–33. http://dx.doi.org/10.1051/lhb/2020013.

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Création de 700 épis dans le dernier siècle, extractions massives de sable réalisées pour les besoins de l'industrie … ces actions anthropiques ont eu des conséquences graves sur le fonctionnement de la Loire : enfoncement du lit, et mauvaise alimentation des annexes fluviales notamment. Dans le cadre du plan Loire IV (2014–2020) financé notamment par l'Union européenne, et dont la maîtrise d'ouvrage est en partie portée par Voies Navigables de France (VNF), la réalisation d'un ouvrage de correction sédimentaire a été proposée au voisinage de Nantes, avec l'objectif d'engendrer un remous solid

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34

Yao, S. X., C. C. Zhao, T. H. Zhang, and X. P. Liu. "Response of the soil water content of mobile dunes to precipitation patterns in Inner Mongolia, northern China." Journal of Arid Environments 97 (October 2013): 92–98. http://dx.doi.org/10.1016/j.jaridenv.2013.06.003.

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35

Jasińska, Justyna, Piotr Sewerniak, and Radosław Puchałka. "Litterfall in a Scots Pine Forest on Inland Dunes in Central Europe: Mass, Seasonal Dynamics and Chemistry." Forests 11, no. 6 (2020): 678. http://dx.doi.org/10.3390/f11060678.

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Extensive areas of inland dunes are commonly overplanted with Scots pine (Pinus sylvestris). However, thus far the pine litterfall has not been investigated in detail in Scots pine stands overgrowing the landforms. Therefore, the aim of this study was to analyse the mass and chemical composition of litterfall in a dune Scots pine forest, paying special attention to the differences in the properties of the particular categories of litterfall (needles, twigs, bark, cones, residue) occurring in different seasons. The secondary goal of the research was to investigate the possible effect of contras

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36

Smith, Cathy. "Tin City: Nomadic occupation, colonization and resistance in the sand dunes of Stockton Bight, Australia." Design Ecologies 9, no. 1 (2020): 93–109. http://dx.doi.org/10.1386/des_00006_1.

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This article explores nomadic site occupation as a form of planetary colonization involving both human and non-human agents. Conventional understandings of temporary occupation are often humancentric with little attention paid to the disruption of extant site ecologies and processes. The latter are particularly pressing concerns in nomadic settlements located in precarious landscapes. Taking the latter as its focus, this article engages the earth as an agent resisting its own colonization in the Australian-licensed squatter settlement known colloquially as Tin City. Located within the largest

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37

Khatelli, H., and D. Gabriels. "A study on the dynamics of sand dunes in Tunisia: Mobile barkhans move in the direction of the Sahara." Arid Soil Research and Rehabilitation 12, no. 1 (1998): 47–54. http://dx.doi.org/10.1080/15324989809381496.

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Sommer, Christian Gabriel, Nander Wever, Charles Fierz, and Michael Lehning. "Investigation of a wind-packing event in Queen Maud Land, Antarctica." Cryosphere 12, no. 9 (2018): 2923–39. http://dx.doi.org/10.5194/tc-12-2923-2018.

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Abstract. Surface snow in polar and mountainous regions is often mobile and this mobility influences surface mass balance and isotopic composition before final deposition, which is poorly understood thus far. In December 2016 and January 2017, during a field campaign in Queen Maud Land, Antarctica, a snowfall and subsequent drifting snow events were recorded by meteorological and drifting snow stations. Associated small-scale topography changes and snow hardness changes were measured by terrestrial laser scanning and with a SnowMicroPen. The polar field measurements show that drifting snow is

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Costa, Aderson Barbosa, Adely Pereira Silveira, Filipe Maciel de Moura, and Fabio Perdigão Vasconcelos. "ANÁLISE E IDENTIFICAÇÃO DOS COMPARTIMENTOS GEOAMBIENTAIS DA REGIÃO DE “PORTO DOS BARCOS” NO MUNICÍPIO DE ITAREMA-CEARÁ." Revista da Casa da Geografia de Sobral (RCGS) 21, no. 2 (2019): 853–63. http://dx.doi.org/10.35701/rcgs.v21n2.574.

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A área de análise é a costa oeste do Estado do Ceará, tendo como enfoque a praia de Porto dos Barcos no município de Itarema. Foi elaborada e compartimentada geoambiental, sendo identificadas as seguintes unidades: a planície litorânea (com subunidades de faixa praial, campo de dunas móveis; campo de dunas fixas e paleodunas); a planícies flúvio-marinhas (desembocaduras fluviais revestidas por manguezais); as planícies fluviais (matas ciliares; lagoas freáticas; e tabuleiros pré-litorâneos ou costeiros. Essa compartimentação é a do Diagnóstico da Zona Costeira e da Gestão Integrada. O artigo t

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MERINO, Francisco FERRER, and Pilar M. DONAT. "Invasive Plants in the Coastal Vegetal Communities in Valencia (Spain)." Notulae Botanicae Horti Agrobotanici Cluj-Napoca 39, no. 1 (2011): 9. http://dx.doi.org/10.15835/nbha3915712.

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A botanical survey has been conducted to determine the influence of invasive species on the main indigenous communities in the Spanish Mediterranean coast and evaluate the current status of these communities in the eastern coast of Spain. The work was done in about 35 km of coastline located in Valencia (Spain). A total of 361 species cataloged are present in the study area, belonging to 79 different families. 49 of them have been inventoried invasive species which currently affect 38 plant communities. For this cause, we have developed a map of location finding out the area occupied by the sa

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Zuo, Xiaoan, Xueyong Zhao, Halin Zhao, et al. "Spatial heterogeneity of soil properties and vegetation–soil relationships following vegetation restoration of mobile dunes in Horqin Sandy Land, Northern China." Plant and Soil 318, no. 1-2 (2008): 153–67. http://dx.doi.org/10.1007/s11104-008-9826-7.

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Huet, Jean-Yves, Yannick Naour, Jean-Pierre Belluteau, Christian Bocard, Christian Such, and Daniel Vaillant. "OPERATIONAL USE OF A MOBILE SAND-WASHING PLANT FOR CLEANING PEBBLES: THE AMAZZONE OIL SPILL." International Oil Spill Conference Proceedings 1989, no. 1 (1989): 149–53. http://dx.doi.org/10.7901/2169-3358-1989-1-149.

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ABSTRACT On January 31, 1988, the Amazzone spilled about 1,500 tons of a highly paraffinic medium fuel oil (having a pour point of 36°C) along a distance of 300 km off the coast of Brittany. Due to very rough sea conditions, no offshore recovery operation could be carried out. Most of the pollution was beached as scattered patches on numerous sites, including pebble beaches in south Finistère, which had been especially difficult to clean during previous spills. In this area, the pebble banks that protect the dunes are relatively exposed to erosion. It was therefore decided to try cleaning thes

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Liu, Xinping, Yuhui He, Tonghui Zhang, et al. "The response of infiltration depth, evaporation, and soil water replenishment to rainfall in mobile dunes in the Horqin Sandy Land, Northern China." Environmental Earth Sciences 73, no. 12 (2015): 8699–708. http://dx.doi.org/10.1007/s12665-015-4125-0.

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Castro, João Wagner Alencar, Julia Varella Malta, Lucas Lavo Antonio Jimo Miguel, Caique Lima Cabral, and Alvaro Balmant Passemilio. "Chronological reconstruction of eolianites and transversal mobile dunes of northwest coast of Ceará State – Brazil, in the last 3000 cal yrs BP." Aeolian Research 28 (October 2017): 51–57. http://dx.doi.org/10.1016/j.aeolia.2017.07.006.

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Moussa, Issaka Abdoulkader, eacute zouomin St eacute phane Som eacute, Tour eacute Amadou Abdourhamane, et al. "Spatial dynamic of mobile dunes, soil crusting and Yobes bank retreat in the Nigers Lake Chad basin part: Cases of Issari and Bagara." African Journal of Environmental Science and Technology 10, no. 4 (2016): 104–10. http://dx.doi.org/10.5897/ajest2015.1958.

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Van der Stoel, C. D., and W. H. Van der Putten. "Dispersal strategy of cyst nematodes (Heterodera arenaria) in the plant root zone of mobile dunes and consequences for emergence, survival and reproductive success." Applied Soil Ecology 34, no. 2-3 (2006): 176–83. http://dx.doi.org/10.1016/j.apsoil.2006.02.007.

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Albuquerque, Emília Z. de, Eduardo Diehl-Fleig, and Elena Diehl. "Density and distribution of nests of Mycetophylax simplex (Emery) (Hymenoptera, Formicidae) in areas with mobile dunes on the northern coast of Rio Grande do Sul, Brazil." Revista Brasileira de Entomologia 49, no. 1 (2005): 123–26. http://dx.doi.org/10.1590/s0085-56262005000100013.

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Zhang, Nannnan, Rongbao Wang, and Feng Zhang. "RESEARCH AND APPLICATION OF REMOTE SENSING MONITORING METHOD FOR DESERTIFICATION LAND UNDER TIME AND SPACE CONSTRAINTS." ISPRS Annals of Photogrammetry, Remote Sensing and Spatial Information Sciences IV-3 (April 23, 2018): 259–65. http://dx.doi.org/10.5194/isprs-annals-iv-3-259-2018.

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Serious land desertification and sandified threaten the urban ecological security and the sustainable economic and social development. In recent years, a large number of mobile sand dunes in Horqin sandy land flow into the northwest of Liaoning Province under the monsoon, make local agriculture suffer serious harm. According to the characteristics of desertification land in northwestern Liaoning, based on the First National Geographical Survey data, the Second National Land Survey data and the 1984&amp;ndash;2014 Landsat satellite long time sequence data and other multi-source data, we con

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Riding, Robert, Stanley M. Awramik, Barbara M. Winsborough, Karen M. Griffin, and Robert F. Dill. "Bahamian giant stromatolites: microbial composition of surface mats." Geological Magazine 128, no. 3 (1991): 227–34. http://dx.doi.org/10.1017/s001675680002207x.

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AbstractSubtidal columnar stromatolites up to 2.5 m high near Lee Stocking Island in the Exuma Cays, Bahamas, have surface mats approximately equally composed of algae and cyanobacteria. The stromatolites are composed of fine–medium oöid and peloid sand. This sediment is supplied to the growing stromatolite surfaces by strong tidal currents which lift grains into suspension and sweep migrating dunes over the columns. The algae include an unidentified filamentous chlorophyte, and numerous diatom species mostly belonging to Mastogloia, Nitzschia and Navicula. The dominant cyanobacteria are two o

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Mott, R., M. Schirmer, M. Bavay, T. Grünewald, and M. Lehning. "Understanding snow-transport processes shaping the mountain snow-cover." Cryosphere 4, no. 4 (2010): 545–59. http://dx.doi.org/10.5194/tc-4-545-2010.

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Abstract. Mountain snow-cover is normally heterogeneously distributed due to wind and precipitation interacting with the snow cover on various scales. The aim of this study was to investigate snow deposition and wind-induced snow-transport processes on different scales and to analyze some major drift events caused by north-west storms during two consecutive accumulation periods. In particular, we distinguish between the individual processes that cause specific drifts using a physically based model approach. Very high resolution wind fields (5 m) were computed with the atmospheric model Advance

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