The long range transport of pollutants in the Pacific Rim region

1990 ◽  
Vol 24 (6) ◽  
pp. 1521-1534 ◽  
Author(s):  
Veerabhadra R Kotamarthi ◽  
Gregory R Carmichael
Keyword(s):  
Long Range ◽  
Pacific Rim ◽  
Long Range Transport ◽  
The Pacific ◽  
Range Transport

Long Range Transport of Trace Gases and Aerosols in the Northeast Pacific Rim

1991 ◽  
pp. 507-514 ◽  
Author(s):  
V. K. Kotamarti ◽  
Y. Sunwoo ◽  
G. R. Carmichael ◽  
Hiromasa Ueda ◽  
Hidemi Kurita
Keyword(s):  
Long Range ◽  
Trace Gases ◽  
Pacific Rim ◽  
Long Range Transport ◽  
Northeast Pacific ◽  
Range Transport

Long-range transport of ozone in the East Asian Pacific rim region

1996 ◽  
Vol 101 (D1) ◽  
pp. 1999-2010 ◽  
Author(s):  
Hajime Akimoto ◽  
Hitoshi Mukai ◽  
Masataka Nishikawa ◽  
Kentaro Murano ◽  
Shiro Hatakeyama ◽  
...  
Keyword(s):  
Long Range ◽  
East Asian ◽  
Pacific Rim ◽  
Long Range Transport ◽  
Range Transport ◽  
Asian Pacific

scholarly journals Trans-Pacific transport and evolution of aerosols and trace gases from Asia during the INTEX-B field campaign

2009 ◽  
Vol 9 (4) ◽  
pp. 16381-16439 ◽  
Author(s):  
B. Adhikary ◽  
G. R. Carmichael ◽  
S. Kulkarni ◽  
C. Wei ◽  
Y. Tang ◽  
...  
Keyword(s):  
Boundary Conditions ◽  
Long Range ◽  
Biomass Burning ◽  
Meteorological Parameters ◽  
Trace Gases ◽  
Long Range Transport ◽  
Model Calculations ◽  
The Pacific ◽  
Range Transport ◽  
The Impact

Abstract. The Sulfur Transport and dEposition Model (STEM) developed at the University of Iowa is applied to the analysis of observations obtained during the Intercontinental Chemical Transport Experiment-Phase B (INTEX-B), conducted over the Pacific Ocean during the 2006 North American spring season. This paper reports on the model performance of meteorological parameters, trace gases, aerosols and photolysis rate (J-values) predictions with the NASA DC-8 and NSF/NCAR C-130 airborne measurements along with observations from three surface sites Mt. Bachelor, Trinidad Head and Kathmandu, Nepal. In general the model shows appreciable skill in predicting many of the important aspects of the observed distributions. The major meteorological parameters driving long range transport are accurately predicted by the WRF simulations used in this study. Furthermore, the STEM model predicts aerosols and trace gases concentrations within a standard deviation of most of the observed mean values. The results also point towards areas where model improvements are needed; e.g., the STEM model underestimates CO (15% for the DC8 and 6% for the C-130), whereas it overpredicts PAN (by a factor of two for both aircraft). The errors in the model calculations are attributed to uncertainty in emissions estimates and uncertainty in the top and lateral boundary conditions. Results from a series of sensitivity simulations examining the impact of the growth of emissions in Asia from 2000 to 2006, the importance of biomass burning, the effect of using boundary conditions from different global models, and the role of heterogeneous chemistry on the predictions are also presented. The impacts of heterogeneous reactions at specific times during dust transport episodes can be significant, and in the presence of dust both sulfate and nitrate aerosol production is increased and gas phase nitric acid levels are reduced appreciably (~50%). The aging of the air masses during the long range transport over the Pacific and the impact of various sources (source regions as well as energy and biomass burning) on targeted observations are analyzed using back-trajectories and tagged CO-tracer analysis.

Elemental carbon deposition to Svalbard snow from Norwegian settlements and long-range transport

Tellus B ◽  
2011 ◽  
Vol 63 (3) ◽  
Author(s):  
Borgar Aamaas ◽  
Carl Egede Bøggild ◽  
Frode Stordal ◽  
Terje Berntsen ◽  
Kim Holmén ◽  
...  
Keyword(s):  
Long Range ◽  
Elemental Carbon ◽  
Carbon Deposition ◽  
Long Range Transport ◽  
Range Transport
Sign in / Sign up

Export Citation Format

Share Document