Interannual-to-interdecadal sea surface temperature variability along the western coast of South America

Details Interannual-to-interdecadal sea surface temperature variability along the western coast of South America Interannual-to-interdecadal sea surface temperature variability along the western coast of South America

Jun 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30k..24m&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 11, pp. 24-1, CiteID 1570, DOI 10.1029/2003GL017345

Physics

14

Oceanography: General: Climate And Interannual Variability (3309), Oceanography: General: Descriptive And Regional Oceanography, Oceanography: Physical: El Nino

Scientific paper

Interannual and interdecadal regional-scale sea surface temperature (SST) variability along Peru and Chile are described based on 9 coastal stations and global SST in the period 1951-1999. ENSO-related interannual variability dominates the low-passed time series along the coast, with maximum amplitudes in the tropics decreasing southward. At tropical latitudes interdecadal variance is about one-third of the interannual variance while they are of similar amplitude in the midlatitudes (36°S). The correlation between the low frequency coastal modes and the Pacific and Atlantic SST suggests that the coastal SST variability comprises two main large-scale climate processes: the ENSO cycle at interannual timescale, and a basin-wide, perhaps even a global-scale, interdecadal oscillation.

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