dust storm disasters in the sahara
DESCRIPTION
Presentation courtesy of Dr Walter Hays, Global Alliance for Disaster ReductionTRANSCRIPT
DUST STORM OFF ALGERIA:DECEMBER 6, 2003
LESSONS LEARNED FROM PAST NOTABLE DISASTERS
ALGERIAPART 2: DUST STORMS
ALGERIA
ALGERIA
NATURAL HAZARDS THAT HAVE CAUSED DISASTERS IN ALGERIA
NATURAL HAZARDS THAT HAVE CAUSED DISASTERS IN ALGERIA
FLOODS
WINDSTORMS/DUSTSTORMS
EARTHQUAKES
LANDSLIDES
ENVIRONMENTAL CHANGE
GLOBAL CLIMATE CHANGE
HIGH BENEFIT/COST FROM BECOMING DISASTER RESILIENT
HIGH BENEFIT/COST FROM BECOMING DISASTER RESILIENT
GOAL: PROTECT PEOPLE AND COMMUNITIES
GOAL: PROTECT PEOPLE AND COMMUNITIES
DUST STORMS
• A dust storm (or sand storm) is a common meteorological phenomenon that is common in. arid and semi-arid regions
The Sahara Desert is a key source of dust storms, particularly the Bodele Depression and an area
covering the confluence of Muritania, Mali, and Algeria]
Saharan dust storms have increased approximately 10-
fold since the 1950s.
DUST STORM OFF ALGERIA:DECEMBER 6, 2003
ALGERIAN DUST STORM
• This dust storm, like others, carried Saharan dust across the Atlantic Ocean all the way to the Southeast United States.
PAST NOTABLE REGIONAL DUST STORMS
United Arab Emirates--Feb., 2009Al-Asada, Iraq; April 2005
Egypt, May 13, 2005
DUST STORM: AL-ASAD, IRAQ; APRIL 27, 2005
DUST STORM LEAVING EGYPT: MAY 13, 2005
IMPACTS OF DUST
• Dust injects nutrients, such as iron, into marine ecosystems.
• Dust also carries bacteria and spores from fungi, which can cause diseases long distances away.
IMPACTS OF DUST
• Dust storms can cause or worsen breathing problems.
• Finally, dust in the atmosphere can also influence weather and global climate change.
ECONOMIC IMPACTS
• Reduced visibility caused by dust can affect aircraft transportation.
ECONOMIC IMPACTS
• Dust storms cause soil loss from the dry lands, and the abrasive effect of the storm damages young crop plants.
• They preferentially remove organic matter, thereby reducing agricultural productivity.