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Memorias de investigación
Ponencias en congresos:
CHARACTERIZATION OF HYDROTHERMALLY ALTERED MATERIALS IN THE CENTRAL VOLCANIC RANGE, COSTA RICA, USING TM DATA.
Año:2008
Áreas de investigación
  • Geología
Datos
Descripción
In this study, Crosta technique is used to delineate the associated zones of hydrothermal alteration in the Central Volcanic Range, Costa Rica. This technique consists on a selective principal components analysis applied for mapping iron oxide and clay minerals. These materials are directly related with several types of hydrothermal alteration (potassic, phyllic, propylitic and argillic alteration). Multispectral imagery from Landsat 5 and 7 is used in order to make a multitemporal approach. Image processing includes fusion technique and calibration to reflectance. Fusion technique is applied to enhanced spatial resolution. For calibration to reflectance, a radiative transfer code is used. Analysis of TM and ETM+ data resulted in the identification of a large variety of minerals and materials. Results from multispectral images is merged with aerial photography from an area of special interest, Izar Volcano, and contrasted with field radiometry data. Preliminary results are presented. 183
Internacional
Si
Nombre congreso
REMOTE SENSING AND PHOTOGRAMMETRY SOCIETY CONFERENCE 2008
Tipo de participación
960
Lugar del congreso
Revisores
No
ISBN o ISSN
9781605606866
DOI
Fecha inicio congreso
15/09/2008
Fecha fin congreso
17/09/2008
Desde la página
183
Hasta la página
183
Título de las actas
CHARACTERIZATION OF HYDROTHERMALLY ALTERED MATERIALS IN THE CENTRAL VOLCANIC RANGE, COSTA RICA, USING TM DATA.
Esta actividad pertenece a memorias de investigación
Participantes
  • Participante: E Bragado
  • Participante: J.G. rejas
  • Autor: Miguel Marchamalo Sacristan (UPM)
  • Participante: R. Martínez
Grupos de investigación, Departamentos, Centros e Institutos de I+D+i relacionados
  • Creador: Grupo de Investigación: Hidrobiología
  • Departamento: Ingeniería y Morfología del Terreno
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