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Publications (94)
The ninth International Symposium Monitoring of Mediterranean Coastal Areas: Problems and Measurements Techniques was organized by CNR-IBE in collaboration with Italian Society of Silviculture and Forest Ecology, and Natural History Museum of the Mediterranean and under the patronage of University of Florence, Accademia dei Lincei, Accademia dei Ge...
Most studies regarding coastal morphodynamic have focused on sandy beaches or beaches with a single type of sediment. Wave climate has been described as one of the main factors behind the morphological changes, although this interaction is not fully understood on composite beaches. The aim of this work is to present new insights into the seasonal v...
Land uses have long modified aeolian sedimentary dynamics as has occurred in the Jandía isthmus (Fuerteventura, Canary Islands, Spain), where changes in vegetation cover, the reduction of sediment available for
transport and the building of barriers to sediment transport have induced beach erosion. In the last 62 years the
beach area has experien...
Saharan dust events are currently the predominant source of lithogenic particles in the Canary Basin. In order to quantify this input and its relationship with the biogenic fluxes, a sediment trap was deployed in a free-drifting system at 150 m depth, 50 km off the north coast of Gran Canaria (Canary Islands). The mineralogy of the lithogenic parti...
Aeolian influx and related environmental conditions on Gran Canaria during the early Pleistocene – ERRATUM - Volume 91 Issue 1 - Inmaculada Menéndez, José Mangas, Esperança Tauler, Vidal Barrón, José Torrent, Juan F. Betancort, Ángelo Santana, José Manuel Recio, Luis A. Quevedo-González, Ignacio Alonso, Jorge Méndez-Ramos
Canary archipelago is formed by seven main islands and several islets that extends for nearly 500 km across the eastern Atlantic, between latitudes 27°N and 30°N, lying its eastern edge only 100 km from the NW African coast.
The Ebro Delta is one of the most significant coastal sedimentary formations in Spain, not only for being the largest and most important delta in the country, but also for presenting several active dune fields on it. In addition, other ecosystems such as salt marshes and lagoons contribute to conform a characteristic and unique habitat.
Rocky coasts, widely present along the world shorelines, have been studied from different points of view. Some sectors of rocky coast at Catalonia has been mapped and described by several authors along time. This paper includes a revision of those studies and analyzes some topographical data in order to obtain a global geomorphological characteriza...
The island of Gran Canaria is regularly affected by dust falls due to its proximity to the Saharan desert. Climatic oscillations may affect the Saharan dust input to the island. Geochemical, mineralogical, and textural analysis was performed on a well-developed and representative early Pleistocene paleosol to examine Saharan dust contribution to Gr...
During the five decades between 1964 and 2015, the coastline of Tazacorte (La Palma, Canary Islands) has suffered some significant changes. The main anthropic intervention was the construction of the port of Tazacorte in the 70’s. The determining natural processes in the area are the waves and the runoff that occur through the Las Angustias ravine....
Volcanic insular shelves are particularly interesting environments from the sedimentological point of view due to their grain size and compositional variability, which is related to the numerous processes that control sedimentation. The aim to achieve in this paper is related with the surface sedimentary characterization at Gran Canaria insular she...
Analysis of marine sediments is costly in terms of money, time and effort, and therefore it is important to evaluate if the visual characterization made by an observer matches the values got after fulfilling the corresponding analysis. To do that we have used 447 very different samples collected from the shelf of Gran Canaria Island. One single obs...
Recovery rates were obtained by radio frequency identification (RFID) technology in pebbles and cobbles at San Felipe beach, Gran Canaria. The aim of this work was to define which factors affected the recovery of tagged gravels. Several tests were performed to determine the detection depth threshold, and 16 field experiments were carried out over s...
The aim of this work is to identify habitats of European interest for the existing dunes in the Canaries, in order
to provide data for their proper management. Dune systems considered were the following: aeolian sedimentary systems that cover both most of the island of La Graciosa and also the dune fields of Maspalomas (Gran Canaria) and Corralejo...
The results of ESEDSEN (Étude sédimentaire du Sénégal - Sedimentary Study of Senegal) project are a contribution to the knowledge of the recent space-temporal evolution of the breach artificially opened in 2003 on the Langue de Barbarie and its consequences. Topographic profiles carried out between October 2010 and December 2011 indicate that the n...
The Corralejo dune system in Fuerteventura in the Canary Islands (Spain) is an aeolian landscape whose genesis and evolution has commonly been associated with a traditional input-output model by which sediments entered from northern beaches and accumulation occurred in the southernmost (land-locked) sections of the dune field. Satellite images as w...
Aeolian dust plays an important role in climate and ocean processes. Particularly, Saharan dust deposition is of importance in the Canary Current due to its content of iron minerals, which are fertilizers of the ocean. In this work, dust particles are characterized mainly by granulometry, morphometry and mineralogy, using image processing and scann...
Two different methods, fluorescent tracers and vertical sand traps, were simultaneously used to carry out an aeolian sediment transport study designed to test the goodness of fluorescent tracers in aeolian environments. Field experiments were performed in a nebkha field close to Famara beach at Lanzarote Island (Canary Islands, Spain) in a sector w...
The Jandia Isthmus (Fuerteventura, Canary Islands) is a complex aeolian system composed of Pliocene and Pleistocene marine deposits, which are partially covered of carbonate crusts, palaeosols and sand sheets. The area has been greatly influenced by climate changes during the Quaternary. Nowadays this area presents an arid landscape dominated by th...
The Canary Islands are close to the largest desert in the world, the Sahara, and as a result, the influence of air-transported dust in the area is of great significance. The present analysis consists of a study of two deposits in the NE and NW, respectively, of the island of Gran Canaria, considered as fluvio-lacustrine loessoids. They exhibit the...
This communication presents the data obtained from analysis of the sedimentary characteristics of Calheta de Pau Beach (Boa Vista Island; Cape Verde) and its possible influence on nest site selection by loggerhead turtle (Caretta caretta). The nesting season in the Cape Verde archipelago occurs between June and October. During this time we sampled...
Las Playas de Maspalomas y El Inglés muestran una intensa dinámica sedimentaria. En este trabajo se ha estudiado el transporte sedimentario a corto (horas) y medio plazo (meses) mediante técnicas topográficas de alta resolución y su relación con las condiciones de oleaje extremal y medio, así como el la evolución a más largo plazo de dichas playas...
The island of Gran Canaria is located in the eastern Atlantic, to the west of the Saharan Desert, and, as a result of its proximity, is regularly affected by Saharan dust. When this weather condition occurs (haze conditions) the particulate/aerosol accumulation rate was lightly higher than under non-haze conditions (5.4±3.8 mg m−2 h−1 versus 4.3±2....
The Mas alomas dune field and adjacent beaches are the most extensive coastal sedimentary environment on the island of Gran Canaria. This area is very important from both a natural and an economic perspective. The analysis of aerial photographs and satellite images from recent decades does not show important shoreline changes for the El Ingles and...
This paper analyzes the main characteristics of the aeolian dynamics and dune evolution in the Corralejo coastal dunefield. This is an area with limited sediment supply and subjected to the action of a quasi-unidirectional wind regime. The governing conditions induce a long-term migration of the dune field in the direction of the wind with an expec...
This paper shows the evolution of a coastal area called Sotavento beaches located at Fuerteventura island (Spain) since 1963 until present time by means of georreferenced aerial photographs. Results show a general retreat of the coastline, with average retreats of 1.5 m/y. Nevertheless, this pattern is not homogeneous all along the coast, since the...
This paper analyzes a certain area from two different approaches: a sedimentological one considering not only the classical parameters (e.g. grain size properties) but also aspects such as the ability of sediments to be blown or their foraminiferal content, and an evolutive approach which could be possible after correcting and georeferencing series...
This paper describes the sedimentological properties of sedimentary materials along a North - South orientated sand strip (21 km long and 5 km wide on average) that crosses the island of Lanzarote (Canary Islands, Spain). The area is characterized as a sand sheet because it is mostly covered by acolian sediments, which were blown southwards from th...
The coastline of Spain exhibits a range of large-scale natural geomorphic features that vary according to natural dynamics, sediment supply and antecedent topography. Measurable human influence on coastal sedimentary systems of Spain has existed for several thousand years in the form of sediment supply and river regulation but the nature and scale...
In this paper the coastal dynamics of the sedimentary system of Maspalomas (Gran Canaria) has been studied by means of micropaleontological tools. To achieve this goal, the analysis of the foraminiferal content in a group of sedimentary samples from 3 different environments was carried out. A total of 19 samples have been studied, 6 of them corresp...
En este trabajo se analizan las transformaciones experimentadas por el campo de dunas de Maspalomas (Gran Canaria, Islas Canarias) desde 1960 hasta la actualidad. La metodología utilizada ha combinado el uso de fotogramas aéreos, imágenes de satélite y trabajo de campo. Los resultados obtenidos ponen de manifiesto que, a lo largo de este periodo, s...
The Barqueiro Ria, located on the north coast of the Iberian Peninsula, is one of the Galician "Rías Altas", which includes Arealonga Beach, the longest beach in the Ria, located in the inner portion. During the 1990s strong erosion has been registered on the beach and associated dunes, while a wide intertidal spit has grown westward. This behavior...
RESUMEN: Este trabajo analiza la evolución temporal y espacial de los pasillos de sombra eólica originados a sotavento de los kioscos en la Playa del Inglés (Gran Canaria, Islas Canarias). Para este estudio se han consultado fotogramas aéreos, imágenes digitales y se han tomado datos de viento alrededor de un kiosco. Los resultados muestran que la...
This paper shows the environmental changes that have taken place in a dune area since the 60s decade until present time by means of aerial photographs and satellite images. The selected study area is the Maspalomas dune field, located in the southern margin of Gran Canaria. This area is the only dune field in the island and was declared Special Nat...
Predictive models of aeolian sediment transport are calibrated and validated with empirical measurements in the Jandía Isthmus (Canary islands), which consists of a wide diversity of aeolian environments, from dunes to sand sheets and serir areas. Empirical aeolian sediment transport rates measured by vertical sand traps simultaneously with wind ve...
Tourism is the basic industry in Fuerteventura Island (Canary Islands, Spain), mostly due to the sunny conditions and excellent beaches. Probably the best well-known beaches are those located in the southeastern part of Jandía Peninsula, locally named Sotavento Beaches. These beaches are the largest and widest in the whole archipelago, and are up t...
Wind characteristics and availability of airborne sediments control aeolian dynamics. Availability of sediments has been only estimated from dune dimensions. Nevertheless, this method is not valid in serir (stone dessert) and sand sheets deposits, where surface properties better than volume of materials define their sediment availability. The area...
The ocean is the major element controlling the long-term stability of the earth's climate. It involves a complex pattern of interrelations between its physical, geological, chemical and biological components: the greater the complexity and diversity of these links the more robust is the stability of the system, and the healthier the earth. A set of...
Present paper deals with sedimentary variability measured at La Barca Beach (Jandia, Fuerteventura). Data include three beach profiles surveyed every three months during two years, sediment samples collected for grain size analysis and the accurate topographic levelling of the area. Results from the analysis of such data set are that the northern s...
