jueves, 26 de julio de 2012

NASA: From the Sahara Desert to America - Del Sahara a América - Dust Plume over the Atlantic - Nube de arena sobre el Atlantico - July 2012

Color bar for Dust Plume over the Atlantic
Dust Plume over the Atlantic
acquired July 21, 2012
Sand in the Sahara Desert doesn’t always stay put. Tiny particles can be lofted into the air, eventually landing elsewhere in that vast sandy desert. Sometimes dust from the Sahara traverses an entire ocean. That was what happened in July 2012, when a dust plume extended across the Atlantic Ocean toward the Caribbean Sea and Florida.
This color-coded map is made from data collected by the Ozone Mapper Profiler Suite (OMPS) on the Suomi National Polar-orbiting Partnership (S-NPP) satellite. It shows relative aerosol concentrations across the Atlantic Ocean on July 21, 2012. Lower concentrations appear in yellow, and greater concentrations appear in dark orange-brown. Areas in grey represent data that have been screened out due to sunglint (reflection of sunlight) or other factors.
The dust followed a southward-sweeping arc over the ocean, and remained relatively thick northeast of the Caribbean islands. In the Western Hemisphere, Saharan dust has costs and benefits. Heavy dust transport to the region has coincided with coral declines, yet without regular dustings, some Caribbean islands would be barren rocks devoid of soil. Saharan dust also provides soil to the Amazon Rainforest.
For residents of southern Florida, dust from the Sahara can aggravate breathing difficulties. In July 2012, National Weather Service meteorologists warned that people with respiratory problems should take precautions, but explained that the dust transported across the Atlantic Ocean typically remains 5,000 to 6,000 feet (1,500 to 1,800 meters) above ground. A more likely consequence of the dust would be a “milky or hazy appearance” to southern Florida’s skies.
  1. References

  2. Holmes, H. (2001). The Secret Life of Dust. John Wiley and Sons, Inc., Hoboken, New Jersey.
  3. Montero, S. (2012, July 17) Saharan dust changes South Florida skies. The Miami Herald. Accessed July 23, 2012.
  4. Smog Blog. (2012, July 21) Weekend edition: Hot through the prairie states; remnant smoke from Saskatchewan. University of Maryland Baltimore County. Accessed July 23, 2012.
NASA Earth Observatory image by Jesse Allen, using OMPS research data provided courtesy of Colin Seftor of NASA's Suomi-NPP Ozone Science Team (SSAI). Caption by Michon Scott.
Suomi NPP - OMPS
NASA: From the Sahara Desert to America - Del Sahara a América - Dust Plume over the Atlantic - Nube de arena sobre el Atlantico - July 2012

Ricardo M Marcenaro - Facebook

Operative blogs of The Solitary Dog:

solitary dog sculptor:

Solitary Dog Sculptor I:

comunicarse conmigo,
enviar materiales para publicar,

contact me,
submit materials for publication,

Diario La Nación
Cuenta Comentarista en el Foro:

My blogs are an open house to all cultures, religions and countries. Be a follower if you like it, with this action you are building a new culture of tolerance, open mind and heart for peace, love and human respect.

Thanks :)

Mis blogs son una casa abierta a todas las culturas, religiones y países. Se un seguidor si quieres, con esta acción usted está construyendo una nueva cultura de la tolerancia, la mente y el corazón abiertos para la paz, el amor y el respeto humano.

Gracias :)

No hay comentarios:

Publicar un comentario