Sulfur plume sizes and ENSO indices between 2002-2013 at Callao and Pisco, coastal Peru


For the first time, the impact of the El Niño‐Southern Oscillation (ENSO) on the surface sulfur plumes off the Peruvian upwelling system has been studied. The investigations demonstrated a strong correlation between the ENSO and the sulfur plumes in the coastal areas of Callao and Pisco. During the El Niño phases, the sulfur plumes disappeared almost completely because of equatorial remotely forced oxygenation episodes. The La Niña events were associated with strong oxygen deficiency over the Peruvian shelf, supporting the formation of hydrogen sulfide and, consequently, the occurrence of sulfur plumes. This impact was smaller at Callao, because the La Niña phases in this coastal area were interrupted by weak oxygenation events. During the neutral phases, oxygen‐poor waters were also present in the Peruvian shelf areas, promoting the large size of sulfur plumes. However, they were not forced by the remotely driven processes resulting from ENSO phenomena.

Supplement to: Ohde, Thomas (2018): Coastal Sulfur Plumes off Peru During El Niño, La Niña, and Neutral Phases. Geophysical Research Letters, 45(14), 7075-7083

Related Identifier
Metadata Access
Creator Ohde, Thomas (ORCID: 0000-0001-8117-814X)
Publisher PANGAEA
Publication Year 2018
Rights Creative Commons Attribution 3.0 Unported;
OpenAccess true
Language English
Resource Type Supplementary Publication Series of Datasets; Collection
Format application/zip
Size 3 datasets
Discipline Earth System Research
Spatial Coverage (-77.130W, -13.710S, -76.210E, -12.060N); Peru
Temporal Coverage Begin 2002-04-01T00:00:00Z
Temporal Coverage End 2012-04-01T00:00:00Z