Smoke aerosol transport patterns over the Maritime Continent

2013 ◽  
Vol 122 ◽  
pp. 469-485 ◽  
Author(s):  
Peng Xian ◽  
Jeffrey S. Reid ◽  
Samuel A. Atwood ◽  
Randall S. Johnson ◽  
Edward J. Hyer ◽  
...  
Keyword(s):  
Aerosol Transport ◽  
Maritime Continent ◽  
Smoke Aerosol ◽  
Transport Patterns

scholarly journals NU-WRF Aerosol Transport Simulation over West Africa: Effects of Biomass Burning on Smoke Aerosol Distribution

2018 ◽  
Vol 57 (7) ◽  
pp. 1551-1573
Author(s):  
Takamichi Iguchi ◽  
Toshihisa Matsui ◽  
Zhining Tao ◽  
Dongchul Kim ◽  
Charles M. Ichoku ◽  
...  
Keyword(s):  
West Africa ◽  
Biomass Burning ◽  
Wrf Model ◽  
Horizontal Wind ◽  
Grid Spacing ◽  
Aerosol Transport ◽  
Radiative Power ◽  
Sub Saharan ◽  
Transport Patterns ◽  
Power Measurements

AbstractSeries of aerosol transport hindcasts for West Africa were conducted using the Weather Research and Forecasting (WRF) Model coupled to chemistry within the NASA-Unified WRF (NU-WRF) framework. The transport of biomass-burning aerosols in April and December 2009 was investigated over two types of simulation domains. One-month simulations with 9-km grid spacing for April or December 2009 covered most of North and West Africa and were evaluated by comparison with measurements of the total-column aerosol optical depth, Ångström exponent, and horizontal wind components at various pressure levels. The horizontal wind components at 700 hPa were identified as key factors in determining the transport patterns of biomass-burning aerosols from sub-Saharan West Africa to the Sahel. The vertical accumulation of biomass-burning aerosols close to 700 hPa was demonstrated in 1-day simulations with 1-km horizontal grid spacing. A new simple parameterization for the effects of heat release by biomass burning was designed for this resolution and tested together with the conventional parameterization based on fixed smoke injection heights. The aerosol vertical profiles were somewhat sensitive to the selection of parameterization, except for cases with the assumption of excessive heating by biomass burning. The new parameterization works reasonably well and offers flexibility to relate smoke transport to biomass-burning plume rise that can be correlated with the satellite fire radiative power measurements, which is advantageous relative to the conventional parameterization.

scholarly journals Observation and quantification of aerosol outflow from southern Africa using spaceborne lidar

2020 ◽  
Vol 116 (3/4) ◽  
Author(s):  
Matthew J. McGill ◽  
Robert J. Swap ◽  
John E. Yorks ◽  
Patrick A. Selmer ◽  
Stuart J. Piketh
Keyword(s):  
Source Region ◽  
Space Station ◽  
Field Studies ◽  
Detection Sensitivity ◽  
Aerosol Transport ◽  
Basic Production ◽  
Remote Sensing Techniques ◽  
Transport Patterns ◽  
The Vertical Distribution ◽  
Over Time

Biomass burning in Africa provides a prolific source of aerosols that are transported from the source region to distant areas, as far away as South America and Australia. Models have long predicted the primary outflow and transport routes. Over time, field studies have validated the basic production and dynamics that underlie these transport patterns. In more recent years, the advancement of spaceborne active remote-sensing techniques has allowed for more detailed verification of the models and, importantly,verification of the vertical distribution of the aerosols in the transport regions, particularly with respect to westerly transport over the Atlantic Ocean. The Cloud-Aerosol Transport System (CATS) lidar on the International Space Station has detection sensitivity that provides observations that support long-held theories of aerosol transport from the African subcontinent over the remote Indian Ocean and as far downstream as Australia.

Analysis of Cigarette Smoke Aerosol by Single Particle Aerosol Mass Spectrometer

2013 ◽  
Vol 40 (6) ◽  
pp. 936-939
Author(s):  
Mei LI ◽  
Jun-Guo DONG ◽  
Zheng-Xu HUANG ◽  
Lei LI ◽  
Wei GAO ◽  
...  
Keyword(s):  
Cigarette Smoke ◽  
Mass Spectrometer ◽  
Single Particle ◽  
Aerosol Mass Spectrometer ◽  
Smoke Aerosol ◽  
Aerosol Mass

Satellite Observations of Sediment Transport Patterns in the Lac Saint-Pierre Region of the St. Lawrence River

1988 ◽  
Vol 23 (2) ◽  
pp. 243-252 ◽  
Author(s):  
J.E. Bruton ◽  
J.H. Jerome ◽  
R.P. Bukata
Keyword(s):  
Sediment Transport ◽  
Close Relationships ◽  
Satellite Observations ◽  
Near Surface ◽  
Thermal Data ◽  
Digital Formats ◽  
Transport Patterns ◽  
Mutually Independent ◽  
River Corridor ◽  
St Lawrence River

Abstract Satellite data from Landsats 4 and 5 were utilized to delineate the seasonal variations of sediment transport zones in the Lac Saint-Pierre region of the St. Lawrence River corridor. A seasonally cyclic succession of patterns displaying persistent, mutually independent, and extensive (in both space and time) turbidity zones was clearly in evidence. Visible and thermal data in both imagery and digital formats were used to show the close relationships existing among the distinct zonal synoptic patterns, the bathymetry of lake and river, and the near surface aquatic temperatures.

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