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Sensitivity of direct radiative forcing by mineral dust to particle characteristics
- Source :
- Progress in Physical Geography, Progress in Physical Geography, SAGE Publications, 2009, 33, pp.80-102. ⟨10.1177/0309133309105034⟩, Progress in Physical Geography, 2009, 33, pp.80-102. ⟨10.1177/0309133309105034⟩
- Publication Year :
- 2009
- Publisher :
- HAL CCSD, 2009.
-
Abstract
- Airborne dust affects the Earth's energy balance — an impact that is measured in terms of the implied change in net radiation (or radiative forcing, in W m-2) at the top of the atmosphere. There remains considerable uncertainty in the magnitude and sign of direct forcing by airborne dust under current climate. Much of this uncertainty stems from simplified assumptions about mineral dust-particle size, composition and shape, which are applied in remote sensing retrievals of dust characteristics and dust-cycle models. Improved estimates of direct radiative forcing by dust will require improved characterization of the spatial variability in particle characteristics to provide reliable information dust optical properties. This includes constraints on: (1) particle-size distribution, including discrimination of particle subpopulations and quantification of the amount of dust in the sub-10 µm to
- Subjects :
- atmospheric dust loading
010504 meteorology & atmospheric sciences
[SDE.MCG]Environmental Sciences/Global Changes
Geography, Planning and Development
Energy balance
dust-particle properties
Forcing (mathematics)
Mineral dust
climate uncertainties
010502 geochemistry & geophysics
Atmospheric sciences
01 natural sciences
Sphericity
Atmosphere
Earth and Planetary Sciences (miscellaneous)
Astrophysics::Solar and Stellar Astrophysics
Astrophysics::Galaxy Astrophysics
0105 earth and related environmental sciences
mineral dust
[PHYS.PHYS.PHYS-AO-PH]Physics [physics]/Physics [physics]/Atmospheric and Oceanic Physics [physics.ao-ph]
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean, Atmosphere
radiative forcing
Radiative forcing
13. Climate action
General Earth and Planetary Sciences
Environmental science
Particle
Spatial variability
Astrophysics::Earth and Planetary Astrophysics
Subjects
Details
- Language :
- English
- ISSN :
- 03091333
- Database :
- OpenAIRE
- Journal :
- Progress in Physical Geography, Progress in Physical Geography, SAGE Publications, 2009, 33, pp.80-102. ⟨10.1177/0309133309105034⟩, Progress in Physical Geography, 2009, 33, pp.80-102. ⟨10.1177/0309133309105034⟩
- Accession number :
- edsair.doi.dedup.....d8074386032fa88e1445b434a99bc60c