Ordinarily, the flashes of white in South America’s Atacama Desert rise from salt pans.But on July 7, 2011, when the Moderate Resolution Imaging Spectroradiometer (MODIS) on NASA’s Terr
The eruption at Chile’s Puyehue-Cordón Caulle Volcanic Complex sent clouds of ash high into the atmosphere, above the weather that usually breaks up such plumes.
A combination of record snowmelt and heavy rain has raised water levels along the Missouri River and its tributaries in the northern Rocky Mountains and Plains.
On May 16, 2011, tan and gray smoke spread hundreds of kilometers across Alberta, Saskatchewan, and the Northwest Territories in Canada.
In this issue:
Typhoon Morakot bore down on the island of Taiwan on August 7, 2009.
© 2014 UNOOSA - All Rights Reserved