Identification

Title

Emergence of the central Atlantic Niño

Abstract

The Atlantic Nino is characterized by sea surface warming in the equatorial Atlantic, which can trigger La Nina, the cold phase of El Nino-Southern Oscillation (ENSO). Although observations show that the Atlantic Nino has weakened by approximately 30% since the 1970s, its remote influence on ENSO remains strong. Here, we show that this apparent discrepancy is due to the existence of two types of Atlantic Nino with distinct patterns and climatic impacts, which we refer to as the central and eastern Atlantic Nino. Our results show that with equal strength, the central Atlantic Nino has a stronger influence on tropical climate than its eastern counterpart. Meanwhile, the eastern Atlantic Nino has weakened by approximately 50% in recent decades, allowing the central Atlantic Nino to emerge and dominate the remote impact on ENSO. Given the distinct climatic impacts of the two types, it is necessary to distinguish between them and investigate their behaviors and influences on climate in future studies.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.org/ark:/85065/d7vx0mn5

codeSpace

Dataset language

eng

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

geoscientificInformation

Keywords

Keyword set

keyword value

Text

originating controlled vocabulary

title

Resource Type

reference date

date type

publication

effective date

2016-01-01T00:00:00Z

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2023-10-27T00:00:00Z

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Limitations on public access

None

Responsible organisations

Responsible party

contact position

OpenSky Support

organisation name

UCAR/NCAR - Library

full postal address

PO Box 3000

Boulder

80307-3000

email address

opensky@ucar.edu

web address

http://opensky.ucar.edu/

name: homepage

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact