Identification

Title

Understanding the recent increase in multiyear La Niñas

Abstract

Five out of six La Nina events since 1998 have lasted two to three years. Why so many long-lasting multiyear La Nina events have emerged recently and whether they will become more common remains unknown. Here we show that ten multiyear La Nina events over the past century had an accelerated trend, with eight of these occurring after 1970. The two types of multiyear La Nina events over this time period followed either a super El Nino or a central Pacific El Nino. We find that multiyear La Nina events differ from single-year La Ninas by a prominent onset rate, which is rooted in the western Pacific warming-enhanced zonal advective feedback for the central Pacific multiyear La Nina events type and thermocline feedback for the super El Nino multiyear La Nina events type. The results from large ensemble climate simulations support the observed multiyear La Nina events-western Pacific warming link. More multiyear La Nina events will exacerbate adverse socioeconomic impacts if the western Pacific continues to warm relative to the central Pacific.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.org/ark:/85065/d75t3qjz

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

2023-10-01T00:00:00Z

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