Unidad de Geodetección - Universidad de Cádiz
La Unidad de geodetección, análisis y georreferenciación de Patrimonio Histórico Agroalimentario (UNCA13-1E-2610), está dotada con la infraestructura necesaria para proceder a la identificación, localización, georreferenciación y análisis de los vestigios históricos, culturales y etnográficos de nuestro entorno. El equipo está compuesto por dos georradares 3D, un sistema de georreferenciación espacial, una estación total y un gps centimétrico, junto con los softwares necesarios para la captura y el procesamiento de los datos obtenidos con los equipos y el posterior análisis de la información. Las labores desarrolladas por la Unidad son el montaje, mantenimiento y asistencia al funcionamiento de estos equipos en las prospecciones planeadas por los investigadores del Instituto, preferentemente en la toma de datos y el post-procesado en los software específicos, la modelación 3D de las tomografías obtenidas y al apoyo técnico a los investigadores en la interpretación y publicación de estos datos. Además deberá proceder a la georreferenciación de los testimonios detectados mediante el sistema de estación total y el gps centrimétrico, al levantamiento topográfico de las estructuras, tanto emergentes como subterráneas, y a su registro mediante fotogrametría. Esta información es ordenada y gestionada en bases de datos en un servidor de gran capacidad, e introducida en Sistemas de Información Geográfico implementando las geodatabases ya existentes de información histórico-arqueológica. Prestamos apoyo en la generación de resultados y la publicación en revistas de impacto, tanto en el ámbito científico como en el humanístico.
Address: Instituto Universitario de Investigación Vitivinícola y Agroalimentaria de la Universidad de Cádiz (IVAGRO). Campus de Jerez de la Frontera.
Address: Instituto Universitario de Investigación Vitivinícola y Agroalimentaria de la Universidad de Cádiz (IVAGRO). Campus de Jerez de la Frontera.
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Videos by Unidad de Geodetección - Universidad de Cádiz
Documentary series. Episode 2. It narrates the cause of the battle and the historical context: the Riego uprising of 1820 and the defense of constitutional liberalism against absolutism. Absolutism was led by France, which sent the 100,000 sons of San Luis in 1823 against the liberals. Cádiz, bastion of constitutionalism where Fernando VII was transferred, will cause the absolutist troops to besiege it again. The main battlefront will be the ditch of the Trocadero and its forts.
Documentary series. Chapter 3. Development of the Battle of the Trocadero. Evolution of the frontline and final attack. Virtual restoration of the front of the Trocadero is included. The international dimension and the origin of the Place du Trocadero in Paris are explained. Not all the clashes in other parts of the Bay of Cádiz are narrated. The documentary focuses on the battlefront at the Trocadero ditch and rampart during the summer of 1823.
Documentary series. The first chapter narrates the origin of the Trocadero ditch and rampart in the context of the Siege of Cádiz by Napoleonic troops during the Spanish War of Independence.
Informes y Trabajos by Unidad de Geodetección - Universidad de Cádiz
Documentary series. Episode 2. It narrates the cause of the battle and the historical context: the Riego uprising of 1820 and the defense of constitutional liberalism against absolutism. Absolutism was led by France, which sent the 100,000 sons of San Luis in 1823 against the liberals. Cádiz, bastion of constitutionalism where Fernando VII was transferred, will cause the absolutist troops to besiege it again. The main battlefront will be the ditch of the Trocadero and its forts.
Documentary series. Chapter 3. Development of the Battle of the Trocadero. Evolution of the frontline and final attack. Virtual restoration of the front of the Trocadero is included. The international dimension and the origin of the Place du Trocadero in Paris are explained. Not all the clashes in other parts of the Bay of Cádiz are narrated. The documentary focuses on the battlefront at the Trocadero ditch and rampart during the summer of 1823.
Documentary series. The first chapter narrates the origin of the Trocadero ditch and rampart in the context of the Siege of Cádiz by Napoleonic troops during the Spanish War of Independence.
The hundred Historical Pagos that make up the Marco del Jerez, and that constitute the basis of the productive proposal, require an updated research approach more in line with the methodological application of Geographic Information Systems (GIS). In this sense, the most relevant historical landmarks selected by the work team involve the Roman moment, the Medieval and Modern period, with abundant written documentation.
The GIS application to Pagos initially involves an exercise in topographic, cadastral and productive modelling. In a second step, these models will allow us to manage the knowledge of these historical territorial units in order to launch hypotheses on which to base new proposals for the landscape of specific historical periods.
Several historical settlements, with industrial and commercial function, integrated the territory of Cádiz bay, as well as other life and burial places like the inland settlement of Castillo de Doña Blanca. This population process was adapted to the marine landscape of the Bay, while itself caused the urban transformation of the coastal environment of the medieval Cádiz Bay.
Since 2016 our research team has carried out a non-invasive study with the aim of safeguarding the historic environment and advancing the research on the urban development. In this paper we show the results of the GPR surveys conducted in La Martela, the Punic harbour of Castillo de Doña Blanca. This is a Phoenician settlement known thanks to excavations carried out between 1979 and 2001 and the non-invasive investigations conducted by our team, consisting of aerial and land photogrammetry and geophysics surveys (with single and multi-antenna GPR system).
La Martela is located on the floodplain, at the foot of the Phoenician settlement of Castillo de Doña Blanca, in a zone where there were no archaeological remains. A 6 hectares survey area was covered with the GPR multichannel Stream X system, thus leading to the discovery of an archaeological site of short-term phase. The orthogonal layout and the building types, with the elongated rooms of the Phoenician and Punic 'warehouse' type, are a clue to date its last construction phase to the 3rd century BC.
In this communication we present the proposed workflow for optimising the results of large area multi-channel GPR surveys to obtain accurate urban cartography, enhancing the value of this method as a research source.
Although geophysical techniques use interpolation as a mechanism to visualise data, these results provide enough quality to map underground structures of archaeological interest with precision. Ultimately, the floor plans obtained through geophysical techniques should be considered as valid as the ones derived from a traditional survey of excavated archaeological remains.
derivadas de las propiedades magnéticas de los suelos y
los elementos. La amplitud de esas alteraciones depende
del contraste o diferencia de susceptibilidad magnética
del suelo con los elementos, del volumen de estos y de
la distancia con los sensores. A diferencia del georradar,
esta técnica no muestra información tomográfica en
profundidad, de manera que la imagen o imágenes
obtenidas constituyen una planta resumen de los datos
del subsuelo hasta -1,5 m, aproximadamente, denominada
magnetograma.
Hasta Regia (Mesas de Asta, Jerez de la Frontera), Ilici (La Alcudia, Elche) and Libisosa (Lezuza, Albacete), and the Latin municipalities of Balsa (Luz de Tavira, Faro), Arva (Alcolea del Río) and Calduba (La Perdiz, Arcos de la Frontera) located in the Roman provinces of Baetica, Tarraconensis and Lusitania have been used as case studies presented in this paper (Figure 1). The cities in this each differ, offering a wide variety in terms of their topography, geography, current uses, and states of archaeological intervention and conservation. Furthermore, research at each of them has been approached with due consideration to these particular conditions, while experimenting with the workflow that was considered more appropriate to develop the non-invasive research and ensure the best results. This paper discusses the different conditions and problems during the entire research process and the strategies applied, as well as the most relevant results in each case study as part of the conclusions from this experience. The
main techniques and tools used during this work have been Unmanned Aerial Vehicles (UAVs), groundpenetrating
radar (GPR), magnetometry, photogrammetry and terrestrial Lidar. Due to the number of
sites studied, the period of the studies, the nature of the surfaces analysed, and the diversity of situations,
this research experience is unique among other Spanish teams specialising in non-invasive techniques.
Although the process of geophysical exploration with multichannel equipment uses interpolation as a mechanism to visualize the data, these results offer enough quality to achieve valid archaeological planimetry.
On the one hand, this cartography we generated, should be recognized by the academic community as having a similar value to traditional excavation. On the other hand, it should not be directly related to high-quality discovery, -Virtual Archaeology- but to non-invasive, or non-destructive research. The goal is to get as close as possible to the representation of archaeological reality, without visual modification motived by the desire to obtain a more attractive result,
with a bifrequency georradar GPR equipment, which have allowed to determine the existence of events possibly associated to the Christian
burial world and modern/contemporary modifications. The detection in both churches of elements such as crypts and individual burials,
as well as their disposition and location within the priority spaces of the period, confirm the effectiveness of the application of non‑invasive
research techniques in the study of the building substrate in this type of construction. The work has also managed to identify possible structural
reinforcements of pillars, extension works and/or modifications possibly undertaken in modern times, all of which are underground.
The results of the geophysics of both cases allow us to conclude that there are multiple constructive similarities following their chronological
parity and with the transformations that are carried out in the churches in modern times, a product of the customs and rites of the
Christian world and the policies of rationalization of space.
At the same time, the research has allowed a significant improvement in the establishment of the methodology for obtaining GPR data inside
religious buildings, with the use of relative georeference systems and other auxiliary means. Consequently, the optimal performances, the
appropriate GPR data densities for the correct obtaining of results and the advantages of the use of a bifrequency GPR system 200 MHz ‑
600 MHz are defined.
Keywords : GPR survey; microsite prospecting; Roman rural settlement; Non Invasive Research; Miramundo site.
Pero el avance de las investigaciones arqueológicas aportan cada vez más datos e información para revisar las hipótesis sobre la ubicación y el funcionamiento del sistema portuario gaditano antiguo, obligando a incorporar nuevos elementos, y reforzando la perspectiva de la existencia de un sistema portuario articulado no tanto sobre la ciudad de Gades y sus inmediaciones, sino sobre la integridad del espacio litoral de la bahía gaditana.
La particular geomorfología de la bahía, tanto del archipiélago que acoge a su principal ciudad como del entorno geográfico costero, ha dificultado adicionalmente la localización de su sistema portuario. Presentamos en esta contribución los datos e hipótesis principales existentes actualmente sobre la localización de las infraestructuras portuarias, tanto en la urbs de Gades como en otros enclaves de la Bahía. Para valorar estas evidencias consideramos de especial interés los trabajos que nuestro equipo de investigación viene desarrollando sobre los antecedentes históricos del puerto gaditano, gracias al hallazgo del asentamiento portuario púnico de La Martela (El Puerto de Santa María) mediante el empleo del georradar multicanal, un establecimiento de una magnitud que obliga a repensar los modelos de puertos antiguos que se quieren identificar en el ámbito gaditano.
esteros, como describía Estrabón, conoció una intensa explotación agrícola, destacando la producción y la exportación de derivados vitivinícolas en ánforas de la familia Dressel 1 y Haltern 70. La
aplicación de técnicas de análisis GIS combinadas con prospección geofísica con georradar nos permite proponer nuevas claves del ordenamiento de este espacio, conocido hasta la fecha mediante
prospecciones superficiales tradicionales. Se analiza la distribución del sistema de villae en un espacio presuntamente centuriado. Igualmente, se identifican y analizan los alfares productores de ánforas destinadas a la distribución de los productos hastenses. La exploración de la urbs con georradar Stream X permite reflexionar sobre la aplicación metodológica de nuevas técnicas al estudio no invasivo del territorio urbano y productivo de la ciudad romana.