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Gobi Dust Storms March 15 –31, 2002

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General Links:(add more links here)

AD-Net Asian Dust Network

NAAPS Global Aerosol Model

SeaWiFS Daily Image

TOMS Aerosol Index

GMS5 Geostationary Satellite

AERONET Sun Photometry

CAPITA Atmospheric Dust

MODIS Rapid Processing

MODIS, 250m, 020315

About this Collection:There are many real-time aerosol datasets on the Web that can aid the understanding of dust storms, fires, and pollution episodes

The modest purpose of this annotated picture book and web links is to inform the community on the relevant data resources

This resource collection is maintained by R. Husar at CAPITA but its content is contributed by the community members.

Dust Storm and Biomass Smoke Over SE Asia

• Starting on March 15, 2002 was an active aerosol period over SE Asia

• The first springtime Gobi dust cloud was streaking along the Mongolia-China border toward the Pacific

• The seasonal biomass burning over Indochina produced a thick, bluish, 1000++ km smoke plume

Biomass Smoke

Gobi Dust

SeaWiFS Team, Gene Feldman, Norman Kuring, norman@tursiops.gsfc.nasa.gov

All SeaWiFS images are for research and educational use only. All commercial use of SeaWiFS data must be coordinated with ORBIMAGE

NRL Surface Winds and Visibility

• Forecast winds predicted friction velocity well over the critical 60 cm/sec for the Gobi Desert.

High Friction Velocity

Doug Westphal, westphal@nrlmry.navy.mil

• Surface visibility observations at the synoptic network indicate low visibility and dust in the air (blue markings)

Dust Transport: NRL Model

• On March 15, the NRL dust model shows the dust cloud emerging from the Gobi desert

• By March 20, another strong dust plume is predicted

See the animation that illustrates the transport dynamics

D. Wespthal, westphal@nrlmry.navy.mil

MODIS High resolution Images

• High resolution from the MODIS sensor are now available a few hours after data acquisition (March 15, 2002)

• The MODIS images show the texture of the dust cloud: low level dust streaks and palls

MODIS 250 m resolution

Rapid Processing Team

SeaWiFS and MODIS Images, March 17, 2002

• See SeaWiFS home page for the image • See MODIS Rapid Response for more images

AERONET Sun Photometer Data: Dalanzadgad

• Dalanzadgad, Mongolia was in the path of the March 15 Gobi dust cloud

• On March 16, the aerosol optical thickness was about 2

• The wavelength-independence of AOT indicates that the vertical light extinction is due to dust

Brent Holben, brent@aeronet.gsfc.nasa.gov

•

TOMS Absorbing Aerosol Index, March 15 -By the TOMS Aerosol Group

•On March 15, the dust cloud was near the surface

•TOMS did not register the low-level dust

• By March 17 and 18, the elevated dust cloud is over the Sea of Japan and the Pacific.

• Also, note the intense biomass smoke plume emanating from Indochina.

•On March 16, a strong dust signal emerges over N Korea/NE China

• Evidently, the dust layer is elevated to several KM.

March 15 March 16 March 17 March 18 March 19

March 20 March 21 March 22 March 23

TOMS Absorbing Aerosol Index, March 15 -By the TOMS Aerosol Group

•On March 15, the dust cloud was near the surface

•TOMS did not register the low-level dust

• By March 17 and 18, the elevated dust cloud is over the Sea of Japan and the Pacific.

• Also, note the intense biomass smoke plume emanating from Indochina.

•On March 16, a strong dust signal emerges over N Korea/NE China

• Evidently, the dust layer is elevated to several KM.

March 15 March 16 March 17 March 18 March 19

March 20 March 21 March 22 March 23

GMS-5 Satellite Images of the DustClick o the images for full resolution

Dust transport animation, March 15, 2002. GMS visible, IR images combined

Any stories, pictures or preferably data on the dust storm ??.

.. and so on…

• Insert your slides here or anywhere else…

LIDAR - Tokyo University of Mercantile Marine

DREAM Dust Forecast at ICoDSlobodan Nickovic, nicko@icod.org.mt

Dry Dep.

Wet Dep.Surface Conc.Column Conc.

Fixed Lat 36N Fixed Lon 140E

Dry Dep.

Wet Dep.Surface Conc.Column Conc.

Fixed Lat 36N Fixed Lon 140E.

MODIS Land Rapid Response: Global Fire Maps

Earth Observatory

• SeaWiFS March 21, 2002

                                     

                                            

Value–chain: SeaStar > SeaWiFS Project > Earth Observatory > This PowerPoint

March 18March 17

Tit

March 16March 15

MODIS 250m image Earth Observatory

March 19

Tit

March 22March 21March 20