Identification

Title

Exceptional multi-year prediction skill of the Kuroshio Extension in the high-resolution CESM decadal prediction system

Abstract

The Kuroshio Extension (KE) has far-reaching influences on climate as well as on local marine ecosystems. Thus, skillful multi-year to decadal prediction of the KE state and understanding sources of skill are valuable. Retrospective forecasts using the high-resolution CESM show exceptional skill in predicting KE variability up to lead year 4, substantially higher than the skill found in a similarly configured low-resolution CESM. The higher skill is attained because the high-resolution system can more realistically simulate the westward Rossby wave propagation of initialized ocean anomalies in the central North Pacific and their expression within the sharp KE front, and does not suffer from spurious variability near Japan present in the low-resolution CESM that interferes with the incoming wave propagation. These results argue for the use of high-resolution models for future studies that aim to predict changes in western boundary current systems and associated biological fields.

Resource type

dataset

Resource locator

https://gdex.ucar.edu/dataset/id/049cf208-8e17-41fd-9cf2-088e1721fdbc.html

protocol: https

applicationProfile: browser

name: Exceptional multi-year prediction skill of the Kuroshio Extension in the high-resolution CESM decadal prediction system

description: Metadata Link

function: download

Unique resource identifier

code

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

Keywords

Keyword set

keyword value

Dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2014-10-16

Keyword set

keyword value

EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE

EARTH SCIENCE > OCEANS > SEA SURFACE TOPOGRAPHY > SEA SURFACE HEIGHT

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-03-15

Keyword set

keyword value

Other > Models > Cesm > Ncar Community Earth System Model

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-03-15

Geographic location

West bounding longitude

130.0

East bounding longitude

-120.0

North bounding latitude

55.0

South bounding latitude

20.0

Temporal reference

Temporal extent

Begin position

1983

End position

2017

Dataset reference date

date type

publication

effective date

2023-07-28

date type

modified

effective date

2023-07-26

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

application/x-netcdf

version of format

Constraints related to access and use

Constraint set

Use constraints

Creative Commons Attribution 4.0 International License.

Limitations on public access

None

Responsible organisations

Responsible party

organisation name

UCAR/NCAR - Climate and Global Dynamics Laboratory

email address

whokim@ucar.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

UCAR/NCAR - GDEX

email address

gdex@ucar.edu

responsible party role

pointOfContact

Metadata date

2023-08-02T08:32:51-06:00

Metadata language