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29 de marzo de 2024
Hay miles de imágenes hasta de aldeas rurales y detalles urbanos inéditos. escraches en HD
Presentan un mapa con 180 mil imágenes de la Tierra en alta definición viernes 25 de noviembre de 2016 09:07
Un mapa de la Tierra que localiza prácticamente a todos los asentamientos humanos del planeta, elaborado con más de 180.000 imágenes satelitales de alta definición, estará disponible de forma gratuita a lo largo de este mes, anunció hoy la Agencia Espacial Europea (ESA, por sus siglas en inglés).
El mapa se diferencia del resto porque "no solo muestra los centros urbanos, sino también minúsculas aldeas rurales" gracias a las más de 180.000 imágenes de alta resolución tomadas por los satélites de radar alemanes TerraSAR-X y TanDEM-X, explicó la ESA en un comunicado.
Los datos de las imágenes satelitales -tomadas en 2012- son "casi cien veces más detallados que los datos ópticos del estadounidense Landsat, utilizados habitualmente para la cartografía de extensiones urbanas", indicó luego de señalar que el mapa ofrece un retrato en blanco y negro de la presencia humana sobre el planeta y es capaz de mostrar incluso viviendas aisladas.
"Antes no disponíamos de todos los poblados en áreas rurales. Éstos podrían resultar clave para comprender la distribución demográfica o los vectores de enfermedades, por ejemplo, o para abordar la presión sobre la biodiversidad", comentó Thomas Esch, del Centro Aeroespacial Alemán (DLR), encargado de su elaboración. Además, estos asentamientos rurales siguen siendo el hogar de casi la mitad de la población mundial, unos 3.000 millones de personas, agregó.
Bautizado como mapa "Global Urban Footprint " (GUF) -mapa del impacto urbano mundial, en español-, estará disponible de forma gratuita a partir de este mes a través de la Plataforma de Explotación Temática Urbana (U-TEP) de la ESA.