Variabilidad de la temperatura superficial del mar, identificación de surgencias costeras y su relevancia en un área marina costera protegida del desierto de Atacama, Chile

Authors

  • Martín Farías Salvador Pontificia Universidad Católica de Chile
  • Consuelo Castro Avaria Pontificia Universidad Católica de Chile

DOI:

https://doi.org/10.4067/S0718-34022008000300003

Keywords:

SST, coastal upwelling, Ekman transport, Protected marine and coastal areas

Abstract

In the coastal zone of the Atacama Region, Chile, through satellite images the variability of the Sea Surface Temperature (SST) and its anomalies were studied. To estimate the coastal upwelling activity, the Ekman transport was used and since the study area is near the northern limit of the subtropical convergence, with the above mentioned data an analysis was performed on the homogeneity of the whole area. The analysis were done for a period including three consecutive years, which present different oceanic and atmospheric conditions, a cold event “La Niña 1996-97” and a warm event “El Niño 1997-98”. Conclusions show that although the whole area follows seasonal and inter annual similar trends, there are zones in which the variability of the SST, its anomalies and the Ekman transport are different. As the Ekman transport used is a global index, a local index and a digital method to detect upwelling foci are proposed

Downloads

Download data is not yet available.

Author Biographies

Martín Farías Salvador, Pontificia Universidad Católica de Chile

Instituto de Geografía

Consuelo Castro Avaria, Pontificia Universidad Católica de Chile

Instituto de Geografía

How to Cite

Farías Salvador, M. ., & Castro Avaria, C. . (2021). Variabilidad de la temperatura superficial del mar, identificación de surgencias costeras y su relevancia en un área marina costera protegida del desierto de Atacama, Chile. Revista De Geografía Norte Grande, (41), 49–61. https://doi.org/10.4067/S0718-34022008000300003

Issue

Section

Artículos

Most read articles by the same author(s)