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Convocatoria para el número 71, julio 2026, semitemático

 

Cambios globales y sus efectos en el sistema terrestre: clima y criósfera

 

Fecha límite de recepción de artículos: 1 de abril de 2026

 

 

 

Análisis de dos fotografías ERTS como posibles indicadores de surgencia costera en la zona norte de Chile

Autores/as

  • Fernando L. E. Robles University of Swansea, South Wales
  • Alvaro L. Ulloa Universidad del Norte, Coquimbo
  • José R. Pineda Universidad de Oriente, Cumaná
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Resumen

Shades of gray were observed in two ERTS images off northern Chile coastal waters. These photographs were reproduced in band 5, combined with high-density yellow false colour (diazo) images; afterwards  they were contrasted against several physico-chemical and biological oceanographic  variables. A probable relationship was established among the shades of gray detected, and coastal upwelling of equatorial subsurface water. The significance of this correlation to fisheries-oceanography is discussed, as part of a national policy towards the use of remote sensors in the seach of natural resources.