El Niño variability off Peru during the last 20,000 years
نویسندگان
چکیده
منابع مشابه
Reduced El Niño-Southern Oscillation during the Last Glacial Maximum.
El Niño-Southern Oscillation (ENSO) is a major source of global interannual variability, but its response to climate change is uncertain. Paleoclimate records from the Last Glacial Maximum (LGM) provide insight into ENSO behavior when global boundary conditions (ice sheet extent, atmospheric partial pressure of CO2) were different from those today. In this work, we reconstruct LGM temperature v...
متن کاملRecent enhancement of central Pacific El Niño variability relative to last eight centuries
The far-reaching impacts of central Pacific El Niño events on global climate differ appreciably from those associated with eastern Pacific El Niño events. Central Pacific El Niño events may become more frequent in coming decades as atmospheric greenhouse gas concentrations rise, but the instrumental record of central Pacific sea-surface temperatures is too short to detect potential trends. Here...
متن کاملEnhanced Atlantic freshwater export during El Niño
Using two reanalysis data sets, the influence of El Niño/Southern Oscillation (ENSO) on the surface freshwater balance of the Atlantic ocean is examined. We present evidence that the transport of water vapour out of the tropical Atlantic is enhanced during warm ENSO phases, while it is reduced during cold phases. These tropical changes alter the freshwater budget of the entire Atlantic drainage...
متن کاملProgress in Oceanography Biogeochemistry of surface sediments off Concepción ( 36 S ) , Chile : El Niño vs . non - El Niño conditions
We compared the signals of several water column properties (upwelling intensity, sea level anomaly, temperature, nutrients, dissolved oxygen, chlorophyll-a, and surface sediments) of the continental shelf off Concepción (36 S) during the 1997–1998 El Niño with those of a normal year (2002–2003). We found that the primary hydrographic effect of El Niño 1997–1998 was a reduction in the input of n...
متن کاملImpact of El Niño Variability on Oceanic Phytoplankton
Oceanic phytoplankton respond rapidly to a complex spectrum of climate-driven perturbations, confounding attempts to isolate the principal causes of observed changes. A dominant mode of variability in the Earth-climate system is that generated by the El Niño phenomenon. Marked variations are observed in the centroid of anomalous warming in the Equatorial Pacific under El Niño, associated with q...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Paleoceanography
سال: 2005
ISSN: 0883-8305
DOI: 10.1029/2004pa001099