1. The Perfect Dust Storm From Gobi to the Atlantic and on to … An evolving presentation by a virtual community. Would you like add to this presentation? 1.Download this PPT presentationDownload 2.Add your content 3.Upload PPT fileUpload See also the Atmospheric Dust WebsiteAtmospheric Dust

2. Stories on the perfect dust storm. Tom Gill, April 13, tgill@TTU.EDUtgill@TTU.EDU Fierce Sandstorms Hit China Western Arid RegionsFierce Sandstorms Hit China Western Arid Regions Alternate linklink Zev Levin, April 17, zev@hail.tau.ac.il The Chinese Dust Storm – A personal Report

3. Dustfall on Snow at Zhenbeitai, China. This picture was taken near the ACE- Asia sampling station on the afternoon of 9 April 2001, the day following the big dust storm. Photo: Sondra Sage (sage@cemrc.org)sage@cemrc.org Submitte: Rich Arimoto (arimoto@cemrc.org)

4. China Dust Earth Observatory

5. The Prospero Dust Reports: Joe Prospero, jprospero@rsmas.miami.edu,jprospero@rsmas.miami.edu April 8 Dust Summary April 17 Dust Summary

6. Dust Transport: NRL ModelNRL Model On April 7, The NRL dust model shows the dust cloud emerging from the Gobi desert A week later, part of the dust cloud passes over N.America toward the Atlantic See the animation that illustrates the transport dynamicsanimation D. Wespthal, westphal@nrlmry.navy.mil

7. Satellite Images of the Storm (GMS-5, SeaWiFS) Click o the images for full resolution See animation of the April 6 Storm Gif small (340kB) Gif med ( 3 mb) Gif large (11 mb) AVI large (19 mb)

8. SeaWiFS SeaWiFS Images of THE Dust Storm See full size SeaWiFS images of dust transport across the Pacific (1.6 mb each) for April 6, 7, 8, 9, 10, 11, 12, 13, 14, 15678 9101112131415 Norman Kuring, norman@tursiops.gsfc.nasa.gov High resolution SeaWiFS images for April 7, 10, 1371013

9. Friday, the 13 th TOMSTOMS Absorbing Aerosol Index See also the daily TOMS animation, April 6 - April 22animation

10. Dust Seen over the West Coast of NAM Dust is recognized by the yellow coloration, compared to bluish sulfate/organic haze.

11. GOESGOES View of the Dust Streak Across N. America, Friday, April 13 GOES10 (West) view of dust streak on the morning of Friday 13 th GOES8 (East) view of dust streak on the evening of Friday 13 th

12. GOES View of the Dust Streak Across N. America, April 17 GOES10 (West) view of dust streak on the morning of April 17 GOES8 (East) view of dust streak on the evening of April 17

13. .. and on to the Atlantic … The dust plume location from the GOES8 over the Atlantic is consistent with the dust location over the Midwest on the day before.

14. Light Extinction and Scattering During Dust Event IMPROVE Network, Bret Schichtel, Schichtel@cira.colostate.edu Transmissometer measures the total light extinction, Bext, while the nephelometer records the light scattering, Bsp, integrated over all angles except near the direction of the light. Nephelometers underestimate coarse particle scattering by as much as 50% due to truncation of the forward scattering lobe. The large difference between the Bext and Bsp along with the low RH at Yosemite and the Grand Canyon Nat. Parks is a good indication that the Asian dust was present during April 14-17.

16. Lidar Depolarization by Dust. Lidar Depolarization by Dust. Salt Lake City, April 15 K. Sassen, ksassen@met.utah.edu Preliminary (hurried) lidar images of the 15 April dust layer over Salt Lake City. The linear depolarization ratios in the surface to 4.5 km MSL dust layer were ~20%, sometimes ~25%, and up to ~15% aloft. This is quite high for our region.

17. Dust Optics: The Twilight Zone - Toronto April 18

18. Dust Optics: Halo

19. Dust Optics: Layering

20. .. and so on… Insert your slides here or anywhere else…