All rights reserved. Enter your search terms:. Electronic Folk International. Jazz Latin New Age. Aggressive Bittersweet Druggy. Energetic Happy Hypnotic. Romantic Sad Sentimental. The intensity of the yellow corresponds to confidence that a given pixel contains dust. These improved spectral and temporal attributes will greatly improve dust detection and characterization. Improving our ability to detect dust in the atmosphere is beneficial because just how much dust enters the atmosphere each year is unclear — projections range from to 5, teragrams a year a teragram, Tg, equals one trillion grams.
Scientists estimate that, on average, about 20 Tg of dust are suspended in the atmosphere at any given time, but seasonal variability is common. Adjusted penetration value for wood doors. Fixed wallbang values on Mechanique Generale. Fixed ambient lighting values at CT spawn entrance. Smoothed out clipping on block stack at Mid. Fixed some models that were embedded in the ground.
Fixed dev text on loading screen. Fixed cover props at B site that would expose player feet. October 27, Adjusted bullet penetration value of wooden doors Smoothed out ground displacements for more predictable grenades Adjusted shadow ambient color temperature Clip improvements to curbs Refined stairs at Cat to Short for movement Refined Window cutout model on B Bombsite to remove head shaped shadow October 24, Performance optimizations on low-end and medium-end computers.
Removed windows and awning on Catwalk for visibility. Moved door awning on Short A for player movement. Fixed slit in boxes in Lower Tunnels. Removed small port hole windows from towers at Short A for visibility. Removed grain sack from Bombsite A. Removed awnings from Salon on Long. Grenade Clipped stone trim pieces. Fixed room at CT Spawn eating weapons. Fixed a number of small holes in the world.
Fixed fade distance on barrel at Mid. Upped light value on a number of windows for visibility. Lowered noise and contrast on some texture sets for visibility. Fixed non-precise clipping on dumpsters at Outside Tunnels. Large dust concentrations may cause problems to people having respiratory problems. Another effect of dust clouds is more colorful sunsets. The Sahara is the major source on Earth of mineral dust million tons per year [ citation needed ].
Saharan dust can be lifted by convection over hot desert areas, and can thus reach very high altitudes; from there it can be transported worldwide by winds, covering distances of thousands of kilometers. The dust combined with the extremely hot, dry air of the Sahara Desert often forms an atmospheric layer called the Saharan Air Layer which has significant effects on tropical weather, especially as it interferes with the development of hurricanes.
There is a large variability in the dust transport across the Atlantic into the Caribbean and Florida from year to year. In some years African dust is observed along much of the East Coast of the United States and is visible in the sky.
Due to the trade winds , very large concentrations of mineral dust can be found in the tropical Atlantic, reaching the Caribbean; moreover episodic transport to the Mediterranean region. In the Mediterranean region, Saharan dust is important as it represents the major source of nutrients for phytoplankton and other aquatic organisms.
Saharan dust carries the fungus Aspergillus sydowii and others. It also has been linked to increased incidence of pediatric asthma attacks in the Caribbean. Since , dust outbreaks have worsened due to periods of drought in Africa. Researchers from Hacettepe University have reported that Saharan soil may have bio-available iron and also some essential macro and micro nutrient elements suitable for use as fertilizer for growing wheat.
It has been shown that Saharan soil may have the potential of producing bioavailable iron when illuminated with visible light and also it has some essential macro and micro nutrient elements. If you have questions about licensing content on this page, please contact ngimagecollection natgeo. If you have questions about how to cite anything on our website in your project or classroom presentation, please contact your teacher.
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If no button appears, you cannot download or save the media. Text on this page is printable and can be used according to our Terms of Service. Any interactives on this page can only be played while you are visiting our website. You cannot download interactives. Join our community of educators and receive the latest information on National Geographic's resources for you and your students. Skip to content.Dust to Dust. by Cloud One. Atmosphere Strut P&P Producers: Patrick Adams, Peter Brown (2) Main genre: Soul / Funk / Disco. Was sampled in 12 songs see all. Multiple Elements Hip-Hop / Rap / R&B. Daughters by Nas () Multiple Elements Hip-Hop.