scholarly journals Spherical and spheroidal model particles as an error source in aerosol climate forcing and radiance computations: A case study for feldspar aerosols

2005 ◽  
Vol 110 (D18) ◽  
Author(s):  
M. Kahnert
Keyword(s):  
Climate Forcing ◽  
Error Source ◽  
Spheroidal Model ◽  
Aerosol Climate Forcing

scholarly journals Mixing state of individual submicron carbon-containing particles during spring and fall seasons in urban Guangzhou, China: a case study

2013 ◽  
Vol 13 (9) ◽  
pp. 4723-4735 ◽  
Author(s):  
G. Zhang ◽  
X. Bi ◽  
L. Li ◽  
L. Y. Chan ◽  
M. Li ◽  
...  
Keyword(s):  
Single Particle ◽  
Climate Forcing ◽  
Mixing State ◽  
Aerosol Mass Spectrometer ◽  
Aerosol Acidity ◽  
Direct Observations ◽  
Aerosol Mass ◽  
The Pearl River ◽  
Biomass Particles

Abstract. Growing evidence suggests that the size-resolved mixing state of carbon-containing particles is very critical in determining their optical properties, atmospheric lifetime, and impact on the environment. However, still little is known about the mixing state of particles in the urban area of the Pearl River Delta (PRD) region, China. To investigate the mixing state of submicron carbon-containing particles, measurements were carried out during spring and fall periods of 2010 using a single-particle aerosol mass spectrometer (SPAMS). Approximately 700 000 particles for each period were detected. This is the first report on the size-resolved mixing state of carbon-containing particles by direct observations in the PRD region. Cluster analysis of single-particle mass spectra was applied to identify carbon-containing particle classes. These classes represented ~80% and ~90% of all the detected particles for spring and fall periods, respectively. Carbon-containing particle classes mainly consisted of biomass/biofuel burning particles (Biomass), organic carbon (OC), fresh elemental carbon (EC-fresh), internally mixed OC and EC (ECOC), internally mixed EC with sulfate (EC-Sulfate), vanadium-containing ECOC (V-ECOC), and amines-containing particles (Amine). In spring, the top three ranked carbon-containing particle classes were ECOC (26.1%), Biomass (23.6%) and OC (10%), respectively. However, the fraction of Biomass particles increased remarkably and predominated (61.0%), while the fraction of ECOC (3.0%) and V-ECOC (0.1%) significantly decreased in fall. To highlight the influence of monsoon on the properties of carbon-containing particles in urban Guangzhou, their size distributions, mixing state, and aerosol acidity were compared between spring and fall seasons. In addition, a case study was also performed to investigate how the formation of fog and haze influenced the mixing state of carbon-containing particles. These results could improve our understanding of the mixing state of carbon-containing particles, and may also be helpful in modeling the climate forcing of aerosol in the PRD region.

scholarly journals Climate Forcing on Millennial, Orbital and Million Year Scales: A Case Study from the Toarcian Oceanic Anoxic Event

2020 ◽  
Author(s):  
David B. Kemp ◽  
Kentaro Izumi ◽  
Wenhan Chen ◽  
Simin Jin ◽  
Wesley Fraser
Keyword(s):  
Climate Forcing ◽  
Oceanic Anoxic Event ◽  
Anoxic Event

scholarly journals Satellite-based estimate of the direct and indirect aerosol climate forcing

2008 ◽  
Vol 113 (D5) ◽  
pp. n/a-n/a ◽  
Author(s):  
Johannes Quaas ◽  
Olivier Boucher ◽  
Nicolas Bellouin ◽  
Stefan Kinne
Keyword(s):  
Climate Forcing ◽  
Aerosol Climate Forcing

Circulation responses to regional aerosol climate forcing in summer over East Asia

2018 ◽  
Vol 51 (11-12) ◽  
pp. 3973-3984 ◽  
Author(s):  
Guoxing Chen ◽  
Wei-Chyung Wang ◽  
Jen-Ping Chen
Keyword(s):  
East Asia ◽  
Climate Forcing ◽  
Aerosol Climate Forcing

The error source analysis of oil spill transport modeling: a case study

2013 ◽  
Vol 32 (10) ◽  
pp. 41-47 ◽  
Author(s):  
Yan Li ◽  
Jiang Zhu ◽  
Hui Wang ◽  
Xiaodi Kuang
Keyword(s):  
Oil Spill ◽  
Transport Modeling ◽  
Source Analysis ◽  
Error Source
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