Identification

Title

Radiative effects of residential sector emissions in China: Sensitivity to uncertainty in black carbon emissions

Abstract

Residential sector emissions of aerosols, primarily from solid fuels burned for cooking and heating purposes, are high in black carbon, a component that absorbs radiation efficiently across a wideband of wavelengths. Mitigation of residential sector emissions has been suggested as a method to rapidly reduce anthropogenic global warming. This study presents model results from a regional model with coupled chemistry, aerosols, and dynamics over an East Asian domain for January 2014 to investigate the radiative effects of residential sector emissions. Model results are evaluated against surface measurements of particulate matter and remote sensing products, comparing well but with a high aerosol optical depth bias over Sichuan and low single scattering albedo over many locations. We calculate effective radiative forcing of residential sector aerosols at the top of the atmosphere of +1.22W/m(2) over Eastern China, +1.04W/m(2) due to shortwave and +0.18W/m(2) due to longwave forcing. We decompose the shortwave forcing into component parts and find the direct radiative effect is the dominant component (+0.79W/m(2)), with a smaller contribution from semidirect effects (+0.54W/m(2)) partly countered by negative indirect effects (-0.29W/m(2)). The effective radiative forcing varies from 0.20 to 1.97W/m(2) across a reasonable range of black carbon to total carbon emission ratios for the residential sector. Overall, this study shows that mitigation of the residential sector is likely a viable method to locally reduce short-term atmospheric warming in China, but efforts are needed to reduce uncertainty in composition of residential sector emissions to be confident in this conclusion.

Resource type

document

Resource locator

Unique resource identifier

code

http://n2t.net/ark:/85065/d7639ss8

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

2019-05-16T00:00:00Z

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