Variable name changed from age14C to age during update from DKs csv files.

Date AA-7199 was 121% modern carbon (post-bomb).

Holocene paleoecology of an estuary on Santa Rosa Island, California

Small estuarine marsh. Physiography: Santa Rosa Island. Surrounding vegetation: coastal marsh and grassland.

North America>United States Of America>California

GoE values close to one would indicate La Nia-like conditions, while values closed to zero would imply strong El Nio-like conditions.

"GoE values close to one would indicate La Niña-like conditions, while values closed to zero would imply strong El Niño-like conditions."

High GoF values indicate shallow nutricline, thus strong upwelling and reduced water column stratification, while low values indicate a deeper nutricline, weak upwelling and deep stratification

"High GoF values indicate shallow nutricline, thus strong upwelling and reduced water column stratification, while low values indicate a deeper nutricline, weak upwelling and deep stratification"

pub1_author: 'list(list(name = "Staines-Urías, Francisca"), list(name = "González-Yajimovich, Oscar"), list(name = "Beaufort, Luc"))' has been replaced by 'Staines-Urias, Francisca'

This marks the creation of the changelog, and marks the status of this dataset as of mid 2020

<jats:p>Nannofossil assemblages from core MD02-2510 provide a ~ 22 ka record of past oceanographic variability in Alfonso Basin (Gulf of California, east subtropical Pacific). In this area, environmental conditions depend on a monsoonal system heavily influenced by changes in the location of the ITCZ and nearby atmospheric pressure centers. To reconstruct nutricline depth and ENSO-like variability, two ecological indexes were calculated based on the relative abundance of the three dominant coccolith species. The late glacial period is characterized by intensified wind-driven upwelling, high primary productivity and La Niña-like conditions. An environmental shift occurs during the glacial–interglacial transition, El Niño-like conditions intensify, nutricline deepens and surface productivity declines. The late Holocene is characterized by a persistent increase in nutricline depth and dominance of El Niño-like conditions. The fluctuations in the composition of the coccolith assemblages can be related to orbital-scale fluctuations in the average position of the ITCZ. However, while the ENSO-like signal that overprints the record varies in response to orbital forcing, on suborbital time scales the relation between ENSO-like conditions and the average position of the ITCZ and the North Pacific High changes, suggesting that the development of persistent El Niño-like conditions is strongly dependent on the specific climatic background.</jats:p>