Wenceslao Martín-Rosales- Professor
- Professor at University of Granada
Wenceslao Martín-Rosales
- Professor
- Professor at University of Granada
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48
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Introduction
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Publications
Publications (48)
Monthly streamflow records from a set of gauging stations, selected to form a reference hydrologic network, are analyzed together with precipitation and temperature data to establish whether the streamflows in the Guadalquivir River Basin have experienced changes during the last half of the XXth century that can be attributed to hydrological forcin...
To assess seasonal patterns of suspended sediment load and its erosion-transport interactions, 17 years of river monitoring data from the Isser River Basin (northwest Algeria) was studied, considering continuous and event-scale approaches. The results show significant differences in sediment yield and transport processes between dry and wet periods...
Monthly streamflow records from a set of gauging stations, selected to form a reference hydrologic network, are analyzed together with precipitation and temperature data to establish whether the streamflows in the Guadalquivir River Basin have experienced changes during the last half of the 20th century that can be attributed to hydrological forcin...
Aunque los procesos espeleogenéticos que generaron la Gruta de las Maravillas de Aracena (Huelva) han sido abordados en diversos estudios, aún se desconocen las condiciones ambientales que predominaron en la cueva durante las etapas más recientes de precipitación de espeleotemas. Mecanismos de karstificación derivados de la oxidación de masas de pi...
At the Negratín Dam (southern Spain) two main springs derived from the water reservoir were detected on the west side of the mountain ridge, matching the location of the left abutment of the dam. The seepages appear when the level of the stored water exceeds 622 m above sea level (m a.s.l.), where some paleochannels are embedded in the silts. The w...
The Gruta de las Maravillas cave is located at the WNW side of the Cerro del Castillo
hill in Aracena (Huelva, SW Spain). The cavity is hosted within marbles included in a
strip of high-grade metamorphic rocks belonging to the so-called Aracena Massif in the
southernmost Ossa-Morena Zone. The hill is made up of granodiorites, marbles,
quartzites, a...
Two fields of prodeltaic undulations located off the Guadalfeo River were studied by integrating surficial (multibeam bathymetry, backscatter, sediment samples) and sub-surface (seismic profiles, sediment cores) data. Our main motivation was to analyze the along- and across-shelf variability of the seafloor undulations, in order to obtain useful in...
The hydraulic properties of coastal aquifer are essential for any estimation of groundwater flow with simple calculations or modelling techniques. Usually the application of slug test or tracers test are the techniques selected for solving the uncertainties. Other methods are based on the information associated to the changes induced by tidal fluct...
The groundwater temperature in the freshwater-saltwater contact zones
shows a characteristic pattern completely different from that monitored
in other parts of the coastal aquifers. The temperature-depth profiles
of seven wells in the Motril-Salobreña aquifer (southern Spain)
were used as a basis for a comparative analysis involving various
paramet...
http://www.sciencedirect.com/science/article/pii/S0169555X13005254
The 4000 BC to present-day coastal and shallow-marine changes of the Guadalfeo River deltaic system (southeast Spain) are studied using historic maps, aerial photographs, diverse submarine data, and hydrodynamic models. The deltaic system evolved with little anthropic influence unt...
Measurement of the stable isotopes oxygen-18 and deuterium in water is an important tool to characterize aquifer recharge sources. In the driest areas of the Mediterranean, this application is of special interest due to the scarcity of water and the resulting common incidence of human influence on natural hydrological systems. The Motril-Salobreña...
Complex landslides in clay-bearing sediments are investigated in two moderate-relief regions of Southeast Spain. Both regions, more than 100 km apart show landslides affecting the same Flysch formation, which outcrops widely in the central and western Betic Cordillera along the contact between the External (South Iberian Domain) and Internal (Albor...
This study presents the results of a three-dimensional variable-density numerical modelling of the Motril-Salobreña coastal aquifer and the possible effects of the entry into service in May 2005 of the Rules Dam, located just 17 km from the coast. Present parameters of the Motril-Salobreña aquifer show that the system's conditions are very similar...
Southern Spain has increasing water-supply problems due to the expansion of cities, tourism, and farming areas. In 2005, the Rules Dam was constructed on the Guadalfeo River 20 kilometres from the sea in the search for improved water provisions for urban and irrigation uses. Subsequently, river discharge decreased, especially in the sector nearest...
Marine intrusion is undoubtedly the most serious problem facing coastal aquifers that are exploited for use—it is also an excellent indicator of the state of the aquifers resources.This work proposes the combined application of two complementary geophysical techniques as an effective method for locating the saline wedge. On one hand, time domain el...
Recently, the Junta de Andalucia (Autonomous Regional Government of Andalusia) has taken on the financing of the research project given by the title of this communication. The project represents an ambitious proposal to determine, as precisely as possible, the operation of the hydrogeological system that underpins large part of the economy of Almer...
Groundwater quality was monitored in four Spanish caves using concentrations of nitrate, potassium, phosphorus and in some cases total organic carbon. Three of the caves are located in NW Spain and contain prehistoric cave paintings and hence have special conservation interest. Of these, two are open show caves (Tito Bustillo and Pindal Caves), whi...
The climatic variability of southeastern Spain recently produced one of the driest periods of the 20th century, which provoked a marked decrease in river flows. A study of trends was applied to four representative rainfall stations (Granada, Almeria, Murcia and Alicante) and showed that the downward trend is generalised. Three of the stations regis...
The scarcity of water resources in semiarid regions is usually accompanied by brief periods of quite intense precipitation
that can generate potentially catastrophic floods. In such regions, the use of runoff water for aquifer recharge can contribute
to both flooding prevention and effective management of water resources. This paper presents the re...
A ten-year study of the Banizoumbou site shows it to be typical of the
hydrological processes in southwestern Niger. The emptying dynamics of
the temporary pond occur on three time scales: (1) after a rainy event,
emptying is initially rapid, becoming much slower later; (2) over a
complete wet season, emptying becomes more and more difficult; (3)
f...
The results of a research carried out in the Gruta de las Maravillas are exposed. The cave is situated in the southwest of Spain, in Aracena (Huelva province). The human activity on the cave has produced a series of effects on water, air and rock. On the water, they are a fall in the level of the pools due to pumping from nearby wells. On the air,...
The carbonate massif of the Sierra de Gâdor (southern Spain) constitutes the natural recharge area of the Campo de Dalias aquifer system. The Campo de Dalias is a semiarid area covered by 20 000 ha of greenhouses yielding significant economic returns. The uncontrolled development of this agricultural activity has produced an increase in the risk of...
Résumé Dans l'environnement typiquement sahélien de la région de Niamey (sud-ouest du Niger), la recharge de la nappe phréatique est essentiellement due à l'infiltration de la pluie concentrée dans les mares endoréiques temporaires. Après une rapide montée, la mare se vide en quelques jours ou semaines, essentiellement par infiltration vers la napp...
The Zafarraya polje undergoes periodical flooding, of which the last episode (1996–1997) was analysed in detail on this paper. On the basis of the retention curves of the two lakes that formed in the northwestern and southwestern sectors, we calculated the total infiltration capacity of the polje to have a maximum value of 3–3.5 m3/s and so we infe...
The intensive agricultural activities that have developed over the last 50 years in the Campo de Dalias (Almeria region)
have required large quantities of gravel and clay as the basic materials for the substrate over which crops are raised. With
this motive, numerous gravel pits have been opened that have extracted several million cubic metres of...
El Campo de Dalías se integra dentro del denominado Poniente almeriense y constituye la comarca de mayor pujanza económica de la provincia de Almería. Este “milagro almeriense” se ha debido a un aprovechamiento intensivo de la potencialidad agrícola dela región, favorecida por la climatología y la aparente abundancia de aguas subterráneas .La tecno...
Determining the content of 18O and deuterium in the groundwater at the southern edge of the Sierra de Gador, between October 1991 and March 1993, has enabled identification of the flow system of the waters, the recharge and mixing processes and the possible mechanisms of salinization. Analysis of the precipitation indicates the dominant source and...
Human intrusion on the Cave of Marvels (southwestern Spain) has produced a series of effects on the water (fall in the level
of the pools due to pumping from nearby wells), the air (increased temperature and CO2 concentration as well as decreased relative humidity) and the rock. In addition, plant colonization, favored by the lighting
system, has...
Principal potential methods for recharging aquifers in semiarid regions are presented. Scarcity of water resources in semiarid regions is often accompanied by brief periods of highly intense precipitation that can generate potentially catastrophic floods. In such areas, runoff water can be harvested for aquifer recharge providing valuable contribut...
