Identification

Title

Little change in apparent hydrological sensitivity at large CO2 forcing

Abstract

Apparent hydrological sensitivity (?(a)), the change in the global mean precipitation per degree K of global surface warming, is a key aspect of the climate system's response to increasing CO2 forcing. To determine whether ?(a )depends on the forcing amplitude we analyze idealized experiments over a broad range of abrupt CO2 forcing, from 2x to 8x preindustrial values, with two distinct climate models. We find little change in ?(a) between 2x and 4xCO(2), and almost no change beyond 5xCO(2). We validate this finding under transient CO2 forcing at 1%-per-year, up to 8xCO(2). We further corroborate this result by analyzing the 1%-per-year output of more than 15 CMIP5/6 models. Lastly, we examine the 1,000-year long LongrunMIP model output, and again find little change in ?(a). This wealth of results demonstrates that ?(a) is a very weak function of CO2 forcing.

Resource type

document

Resource locator

Unique resource identifier

code

https://n2t.org/ark:/85065/d7sx6j82

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

2023-09-28T00:00:00Z

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