Radiative forcing due to dust aerosol over east Asia-north Pacific region during spring, 2001

Hong Wang, Guangyu Shi, Teruo Aoki, Biao Wang, Tianliang Zhao

Research output: Contribution to journalArticle

27 Citations (Scopus)

Abstract

An optical model accounting for the East Asian dust is proposed as a result of theory calculation and composition analysis of the aerosol samples collected in China desert during the international project, "Studies on the Origin and Transport of Aeolian Dust and its Effects on Climate (ADEC)". Study indicates that dust aerosols emitting from China deserts have smaller imaginary parts of refractive indices, therefore absorb less and scatter more solar radiation than the most dust optical models published so far. Furthermore, the forward fraction of scattering is less and the backscattering is stronger than those of the other models. The seasonal averaged radiative forcing in spring, 2001 over east Asia-north Pacific region is simulated employing the new dust optical model. The net forcing at the top of atmosphere (TOA) is estimated as -0.943 W · m-2 for regional and seasonal mean, with shortwave and longwave contributions of -1.700 and 0.759 W · m-2, respectively. The surface net forcing is calculated to be -5.445 W · m-2, and made up of shortwave component of -6.250 W · m -2 and longwave component of +0.759 W · m-2. The distributions of TOA and surface net forcing over this region are also analyzed in this study.

Original languageEnglish
Pages (from-to)2212-2219
Number of pages8
JournalChinese Science Bulletin
Volume49
Issue number20
DOIs
Publication statusPublished - 2004
Externally publishedYes

Fingerprint

radiative forcing
aerosol
dust
top of atmosphere
desert
eolian deposit
refractive index
solar radiation
scattering
Asia
climate

Keywords

  • Radiative characteristics
  • Radiative forcing
  • Refractive indices

ASJC Scopus subject areas

  • General

Cite this

Radiative forcing due to dust aerosol over east Asia-north Pacific region during spring, 2001. / Wang, Hong; Shi, Guangyu; Aoki, Teruo; Wang, Biao; Zhao, Tianliang.

In: Chinese Science Bulletin, Vol. 49, No. 20, 2004, p. 2212-2219.

Research output: Contribution to journalArticle

Wang, Hong ; Shi, Guangyu ; Aoki, Teruo ; Wang, Biao ; Zhao, Tianliang. / Radiative forcing due to dust aerosol over east Asia-north Pacific region during spring, 2001. In: Chinese Science Bulletin. 2004 ; Vol. 49, No. 20. pp. 2212-2219.
@article{7a41e819199841d5b8ca083721d9684b,
title = "Radiative forcing due to dust aerosol over east Asia-north Pacific region during spring, 2001",
abstract = "An optical model accounting for the East Asian dust is proposed as a result of theory calculation and composition analysis of the aerosol samples collected in China desert during the international project, {"}Studies on the Origin and Transport of Aeolian Dust and its Effects on Climate (ADEC){"}. Study indicates that dust aerosols emitting from China deserts have smaller imaginary parts of refractive indices, therefore absorb less and scatter more solar radiation than the most dust optical models published so far. Furthermore, the forward fraction of scattering is less and the backscattering is stronger than those of the other models. The seasonal averaged radiative forcing in spring, 2001 over east Asia-north Pacific region is simulated employing the new dust optical model. The net forcing at the top of atmosphere (TOA) is estimated as -0.943 W · m-2 for regional and seasonal mean, with shortwave and longwave contributions of -1.700 and 0.759 W · m-2, respectively. The surface net forcing is calculated to be -5.445 W · m-2, and made up of shortwave component of -6.250 W · m -2 and longwave component of +0.759 W · m-2. The distributions of TOA and surface net forcing over this region are also analyzed in this study.",
keywords = "Radiative characteristics, Radiative forcing, Refractive indices",
author = "Hong Wang and Guangyu Shi and Teruo Aoki and Biao Wang and Tianliang Zhao",
year = "2004",
doi = "10.1360/04wd0017",
language = "English",
volume = "49",
pages = "2212--2219",
journal = "Science Bulletin",
issn = "2095-9273",
publisher = "Springer Science + Business Media",
number = "20",

}

TY - JOUR

T1 - Radiative forcing due to dust aerosol over east Asia-north Pacific region during spring, 2001

AU - Wang, Hong

AU - Shi, Guangyu

AU - Aoki, Teruo

AU - Wang, Biao

AU - Zhao, Tianliang

PY - 2004

Y1 - 2004

N2 - An optical model accounting for the East Asian dust is proposed as a result of theory calculation and composition analysis of the aerosol samples collected in China desert during the international project, "Studies on the Origin and Transport of Aeolian Dust and its Effects on Climate (ADEC)". Study indicates that dust aerosols emitting from China deserts have smaller imaginary parts of refractive indices, therefore absorb less and scatter more solar radiation than the most dust optical models published so far. Furthermore, the forward fraction of scattering is less and the backscattering is stronger than those of the other models. The seasonal averaged radiative forcing in spring, 2001 over east Asia-north Pacific region is simulated employing the new dust optical model. The net forcing at the top of atmosphere (TOA) is estimated as -0.943 W · m-2 for regional and seasonal mean, with shortwave and longwave contributions of -1.700 and 0.759 W · m-2, respectively. The surface net forcing is calculated to be -5.445 W · m-2, and made up of shortwave component of -6.250 W · m -2 and longwave component of +0.759 W · m-2. The distributions of TOA and surface net forcing over this region are also analyzed in this study.

AB - An optical model accounting for the East Asian dust is proposed as a result of theory calculation and composition analysis of the aerosol samples collected in China desert during the international project, "Studies on the Origin and Transport of Aeolian Dust and its Effects on Climate (ADEC)". Study indicates that dust aerosols emitting from China deserts have smaller imaginary parts of refractive indices, therefore absorb less and scatter more solar radiation than the most dust optical models published so far. Furthermore, the forward fraction of scattering is less and the backscattering is stronger than those of the other models. The seasonal averaged radiative forcing in spring, 2001 over east Asia-north Pacific region is simulated employing the new dust optical model. The net forcing at the top of atmosphere (TOA) is estimated as -0.943 W · m-2 for regional and seasonal mean, with shortwave and longwave contributions of -1.700 and 0.759 W · m-2, respectively. The surface net forcing is calculated to be -5.445 W · m-2, and made up of shortwave component of -6.250 W · m -2 and longwave component of +0.759 W · m-2. The distributions of TOA and surface net forcing over this region are also analyzed in this study.

KW - Radiative characteristics

KW - Radiative forcing

KW - Refractive indices

UR - http://www.scopus.com/inward/record.url?scp=22244477617&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=22244477617&partnerID=8YFLogxK

U2 - 10.1360/04wd0017

DO - 10.1360/04wd0017

M3 - Article

AN - SCOPUS:22244477617

VL - 49

SP - 2212

EP - 2219

JO - Science Bulletin

JF - Science Bulletin

SN - 2095-9273

IS - 20

ER -