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06/07/11

NASA Images Of The Day: Dust Storm In Southwest Asia

Source: NASA MODIS Web

June 6 Image of the day:


see high resolution
Satellite: Terra, Date Acquired: 5/31/2011, Bands Used: 1,4,3
Credit: Jeff Schmaltz, MODIS Land Rapid Response Team, NASA GSFC

Dust plumes blew over southwestern Asia at the end of May 2011. On May 31, the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Terra satellite captured this natural-color image of dust plumes blowing over the borders of Iran, Afghanistan, and Pakistan. Iran lies in the west, Afghanistan in the northeast, and Pakistan in the southeast of the image.

The thickest plume originates in eastern Iran. The opaque plume blows toward the south-southeast, passing over parts of Afghanistan and Pakistan. To the east, another plume blows in the same direction. Farther east (upper right quadrant of the image), a camel-colored, unevenly shaped plume appears to float over Afghanistan.

Dust plumes in this region often originate from dry lakebed sediments along the Iran-Afghanistan border, and from sandy deserts in Afghanistan and Pakistan.

June 4 Image of the day:


see high resolution
Satellite: Aqua, Date Acquired: 6/1/2011, Bands Used: 1,4,3
Credit: Jeff Schmaltz, MODIS Land Rapid Response Team, NASA GSFC

Dust storms spread over southwestern Asia on June 1, 2011. As the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA's Aqua satellite passed overhead, dust-storm activity extended from the Iran-Afghanistan border across Pakistan and into India. Dust also blew over the Gulf of Oman and the Arabian Sea.

Dust plumes often arise from the dry lakebed sediments along the border between Iran and Afghanistan. Thick plumes blow from that region toward the southeast in this natural-color image. Dust also arises from the sand seas occurring over much of western Pakistan, and the sandy desert that stretches for hundreds of kilometers along the Pakistan-India border.

Although thinner than the plumes to the north and east, dust also occurs over Oman. Sandy deserts in Oman could be the source of the dust in that region, but the dust might have arisen in and around Pakistan, and been carried across the Arabian Sea and Gulf of Oman.

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