North african dust emissions and transport
Web† CMIP5 models underestimate African dust emission and transport † The dust size distribution is biased toward small particles in CMIP5 ... (2006), North African dust emissions and transport, Earth Sci. Rev., 79(1–2), 73–100. Evan, A. T., and S. Mukhopadhyay (2010), African dust over the northern tropical Atlantic: 1955 –2008, J. … WebSaharan dust emissions and transports are sensitive to weather and climate conditions in the source regions. Dense dust clouds reduce the ocean surface exposure to sunlight, hence, reducing the ocean surface heating and therefore influencing the air-sea transfer of water vapor and latent heat , which are critical to climate. [70]
North african dust emissions and transport
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Web1 de dez. de 2003 · North African dust has increased less, from 10 ± 4 Tg in the pre-industrial period to 14 ± 4 Tg in the modern climate, representing a 46 (2 -102) % … WebAbstract. North Africa is the largest source of mineral dust on Earth, which has multiple impacts on the climate system; however, our understanding of decadal to centennial changes in African dust emissions over the last few millenniums is limited. Here, we present a high-resolution multiproxy analysis of sediment core from high-elevation Lake …
Web4 de jun. de 2014 · In this study, we used a 150 year preindustrial CESM 1.0 simulation to investigate the seasonal cycle of dust burden and transport, circulation, and lower tropospheric cloud fraction over North Africa and the subtropical North Atlantic and employed simple statistical techniques and dynamical calculations to explain the … Web29 de abr. de 2024 · Drying lakes have become a new source of dust, causing severe problems in surrounding areas. From 2000 to 2024, a statistical study was conducted on Lake Urmia in Iran in the Middle East. The results indicated a significant increase in the annual number of dusty days in stations around the lake and the mean annual aerosol …
Web14 de abr. de 2024 · Zhao C, Liu X, Leung LR, Johnson B, McFarlane SA, Gustafson WI, Fast JD, Easter R. The spatial distribution of mineral dust and its shortwave radiative … Web10 de ago. de 2024 · 1 Introduction. It has been reported that the arid regions of North Africa emit approximately 800 Tg yr −1 of soil dust [Prospero and Mayol-Bracero, 2013].Large quantities of dust, e.g., a satellite-based study estimated a dust flux of 240 ± 80 Tg yr −1 [Kaufman et al., 2005] from the Saharan region, can undergo long-range …
Web1 de set. de 2013 · The arid regions of North Africa are estimated to emit about 800 Tg yr −1 of soil dust each year, 70% of the global total and six times more than the next …
Web1 de dez. de 2024 · Similar synoptic-scale conditions and associated dust emission and westward transport lasted during the 14–19 June period ... (Figure S5), where a … most ethical washing machineWeb2 de ago. de 2024 · Under Saharan dust conditions, the MBL was confined to just 70 m.a.s.l., whereas a complex dust stratification was observed above, characterized by alternating dry air layers with high dust... mini backpack for teensWeb8 de nov. de 2024 · This episode represents a dust transport situation over the Iberian Peninsula and the Mediterranean Sea similar to those classified as “North African High Located at Upper Levels” (NAH-A) and “Atlantic Depression” (AD) by Escudero et al. (2005). In this case, Atlantic low is displaced to the north, avoiding wet depositions. mini backpack for toddler boyWeb7 de nov. de 2003 · Dust generation and drought patterns in Africa from helium‐4 in a modern Cape Verde coral. We show that helium‐4 (4He) concentrations in a modern … most ethical us companiesWeb1 de nov. de 2006 · North Africa is one of the largest dust producing regions in the world with dust emissions being highly variable on time scales ranging from … most ethical uk companiesWeb7 de nov. de 2003 · Although there is much dust activity in Africa in winter, transport is mainly in latitudes south of Barbados , carrying dust into South America. The strong … most ethical us bankWebIn 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. [4] most ethical uk banks