Relación entre flujos de viento, vegetación y topografía en una zona de sombra eólica inducida por construcciones urbano-turísticas en un sistema de dunas transgresivo árido

Translated title of the contribution: Relationship between airflows, vegetation and topography in arid coastal dunes affected by urban-tourist developments

Levi Garcia-Romero, IRENE DELGADO-FERNANDEZ, Patrick A Hesp, Luis Hernandez-Calvento, Antonio I Hernández-Cordero, Manuel Viera-Pérez, Jorge Cabrera-Gámez, Antonio Carlos Dominguez-Brito

Research output: Chapter in Book/Report/Conference proceedingConference proceeding (ISBN)

Abstract

Human structures can modify the aeolian sedimentary dynamics as has happened in the arid transgressive dunefield of Maspalomas (Gran Canaria, Canary Islands). As a result of this alteration, an area of aeolian shadow is detected to leeward of an tourist resort (Playa del Inglés), characterized by an increase in the vegetation density, a blockade of the sand supply and the formation of erosive aeolian landforms. The objective of this work is to characterize the processes that take place in this zone, relating local airflows with environmental variables (topography and vegetation) and distance to buildings. An experiment was carried out in March 2017, collecting wind data (speed and direction) from 5 transects with anemometers at 0.40 meters high (area with greatest sedimentary transport). Simultaneously, a photogrammetric drone flight was carried out, from which an orthophoto, a digital model of elevations and surface were obtained (DEM and DSM). This allowed measuring topographic variables (altitude and slope) and vegetation (height and density) that were analyzed spatially and statistically. Results show differences between transects with erosive processes, mainly affected by the distance to the urbanization and the slope, and those that do not present erosive processes, where vegetation reduces or maintains the wind speed. The discussion focused on the relationships obtained in each transect and the processes that explain them.
Translated title of the contributionRelationship between airflows, vegetation and topography in arid coastal dunes affected by urban-tourist developments
Original languageSpanish
Title of host publicationTecnologías de la Información Geográfica: perspectivas multidisciplinares en la sociedad del conocimiento
PublisherUniversitat de Valencia
Pages244-255
ISBN (Print)9788491331469
Publication statusPublished - 22 Jun 2018
EventXVIII Congreso Nacional de Tecnologías de la Información Geográfica - Valencia, Spain
Duration: 20 Jun 201822 Jun 2018

Conference

ConferenceXVIII Congreso Nacional de Tecnologías de la Información Geográfica
CountrySpain
CityValencia
Period20/06/1822/06/18

Keywords

  • Aeolian shadow zone
  • Arid transgressive dune system
  • Wind flow
  • Dune vegetation
  • Topography
  • Human Impact

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  • Cite this

    Garcia-Romero, L., DELGADO-FERNANDEZ, IRENE., Hesp, P. A., Hernandez-Calvento, L., Hernández-Cordero, A. I., Viera-Pérez, M., Cabrera-Gámez, J., & Dominguez-Brito, A. C. (2018). Relación entre flujos de viento, vegetación y topografía en una zona de sombra eólica inducida por construcciones urbano-turísticas en un sistema de dunas transgresivo árido. In Tecnologías de la Información Geográfica: perspectivas multidisciplinares en la sociedad del conocimiento (pp. 244-255). Universitat de Valencia. https://www.libreriaproteo.com/libro/ver/id/2172249/titulo/tecnologias-de-la-informacion-geografica-perspectivas-multidisciplinares-en-la-actas-del-xvii.html