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Case Study 2 : Western and Central Africa

Case Study 2 : Western and Central Africa. Map of the Air Quality Event Region Western and Central Africa http://www.mapsofworld.com/africa-political-map.htm . Region of Air Quality Event.

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Case Study 2 : Western and Central Africa

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  1. Case Study 2:Western and Central Africa

  2. Map of the Air Quality Event RegionWestern and Central Africa http://www.mapsofworld.com/africa-political-map.htm Region of Air Quality Event

  3. MODIS-Terra True Color ImagesWestern Africa (Ivory Coast, Ghana, Togo, Benin, Nigeria)December 26th, 2008(http://rapidfire.sci.gsfc.nasa.gov/subsets/)

  4. MODIS-Terra True Color ImagesCentral Africa (Central African Republic, Congo, DRC, Uganda, Sudan)December 26th, 2008(http://rapidfire.sci.gsfc.nasa.gov/subsets/)

  5. MODIS Terra Aerosol Optical Depth (Level 3) Western and Central AfricaDecember 26th, 2008 (http://giovanni.gsfc.nasa.gov)

  6. OMI Aerosol Index (Level 3)Western and Central AfricaDecember 26th, 2008 (http://giovanni.gsfc.nasa.gov)

  7. OMI Nitrogen DioxideCentral Africa http://www.temis.nl/airpollution/no2col/no2regioomi_col3.php December 26th, 2008

  8. OMI Nitrogen DioxideWestern Africa http://www.temis.nl/airpollution/no2col/no2regioomi_col3.php December 26th, 2008

  9. 5-day Back-Trajectories Ending in the Democratic Republic of Congo (right) and Nigeria (left)HYSPLIT On-line Transport Modelhttp://www.arl.noaa.gov/ready/open/hysplit4.html

  10. 5-day Back-Trajectories Ending in Ivory CoastHYSPLIT On-line Transport Modelhttp://www.arl.noaa.gov/ready/open/hysplit4.html

  11. Meteorological Information Available on the Internet • Hourly Weather Observations(temperature, winds, visibility, etc.) • Weather Underground:http://www.wunderground.com/ • Type “Nigeria” in the box at the top of the page, and hit enter. • Scroll down to the list of cities and click on “Abuja”. • Select the date of interest under “History and Almanac”. • Repeat for Yamoussoukro, Ivory Coast • Repeat for Bangui, Central African Republic

  12. True Color and AOD Images Available on the Internet • True Color Images MODIS instrument:http://rapidfire.sci.gsfc.nasa.gov/subsets/ • Click on region of interest. • Click on the “display alternate dates available for this subset” link. • Select date of interest (dates are in Julian date format). • Repeat for all overlapping regions of interest. • True Color and AOD Images MODIS instrument:http://ladsweb.nascom.nasa.gov/browse_images/l2_browser.html • Select “Terra” or “Aqua” satellite • Select appropriate “month,” “day,” and “year.” • Select “parameter” from pull-down menu; “RGB” = true color images Parasol satellite:http://www-icare.univ-lille1.fr/parasol/browse/ • Click the box next to “Aerosol Optical Thickness over land” and “865 nm Optical Thickness over ocean” to view aerosol images. • AOD Images OMI instrument:http://toms.gsfc.nasa.gov/aerosols/aerosols_v8.html • Scroll to the bottom of the page to select images. • Select “global image” from “Choose output” pull-down menu. • Select “OMI: 8/17/2004 – Present” from “coverage satellite” pull-down menu. • Select appropriate “Date to be studied.”

  13. HYbrid Single-Particle Lagrangian Integrated Trajectory(HYSPLIT) Analysis • NOAA Air Resources Laboratory HYSPLIT Model • http://www.arl.noaa.gov/ready/open/hysplit4.html • Under the “HYSPIT” pull-down menu, select “run with archived data”. • Select “compute trajectories”. • Choose the “GDAS (global, 2005-present)” archived meteorological dataset. • Select the desired archive file. • Choose 1 trajectory starting location. • Enter the WMO code for the city where you would like to base the trajectory: • Model Run Time Options: • Select a forward or back trajectory. • Select the appropriate start or end date; select “16” UTC for the time (2 PM local). • Type in “1000” for “Start height 2” and “1500” for “Start height 3”. • LEAVE EVERYTHING ELSE UNCHANGED. • Scroll to the bottom and click “request trajectory”. • Wait for your results; when they are done, click on “your trajectory plot”.

  14. Sources of Satellite Data and Imagery Moderate Resolution Imaging Spectroradiometer (MODIS) description: http://modis-atmos.gsfc.nasa.gov/ MODIS Rapid Response System: http://rapidfire.sci.gsfc.nasa.gov/ MODIS direct broadcast site: http://eosdb.ssec.wisc.edu/modisdirect/ MODIS Level 2 LAADS data browser: http://ladsweb.nascom.nasa.gov/browse_images/l2_browser.html The Smog Blog: http://alg.umbc.edu/usaq/ NASA Earth Observatory: http://earthobservatory.nasa.gov/ NASA Visible Earth: http://visibleearth.nasa.gov/ NASA Giovanni: http://giovanni.gsfc.nasa.gov CALIPSO satellite: http://www-calipso.larc.nasa.gov/products/lidar/ NRL Fire Locating and Modeling of Burning Emissions (FLAMBE) Google Earth Download http://www.nrlmry.navy.mil/flambe/ Tropospheric Emission Monitoring Internet Service (European): http://www.temis.nl/ Satellite Products for Europe (German Remote Sensing Data Center): http://www.dlr.de/caf/en/desktopdefault.aspx/tabid-2683/4049_read-6052/ India Meteorological Department Satellite Images and Products (INSAT satellite): http://www.imd.ernet.in/section/satmet/dynamic/insat.htm EUMETSAT Image Gallery (Europe and Africa): http://www.eumetsat.int/Home/Main/Image_Gallery/Real-time_Images/index.htm

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