Identification

Title

Changing seasonal sea ice predictor relationships in a changing Arctic climate

Abstract

Seasonal predictions of Arctic sea ice conditions often rely on statistical relationships of a set of predictors that have shown skill for historical conditions. However, with rapid changes occurring in the Arctic climate, it is unclear whether these statistical relationships will remain valid. Here, preindustrial control, present-day control, and 20th-21st century climate model integrations are used to assess predictors for end-of-summer ice extent under various and changing climate conditions. Of importance for future forecasting systems, we find that the variance of September extent anomalies explained by winter-spring sea ice predictors, such as the area of Arctic basin thin ice cover, increases during the transition to a seasonally ice-covered Arctic. In contrast, summer atmospheric circulation variability plays a decreasingly important role in explaining the end-of-summer ice cover anomalies. These changes are primarily related to climate-dependent changes in the location of summer sea ice anomalies.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d728089v

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

2001-09-20T00:00:00Z

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