Concentration, size-distribution and deposition of mineral aerosol over
                        Chinese desert regions

Zhang, Xiao Y.; Arimoto, R.; Zhu, Guofeng; Chen, Ti; Zhang, G. Y.

doi:10.3402/tellusb.v50i4.16131

Cited by 94 publications

(67 citation statements)

References 17 publications

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“…Nevertheless, an extreme value of 664 mg m -2 h -1 was recorded on March 2011, during a strong dust storm in Kuwait that was a local phenomenon. This extreme dust loading were comparable to sites primarily that are affected by a local dust sources [20]. The temporal variations of the deposition rates showed seasonal tendency, as presented in Fig.…”

Section: Resultssupporting

confidence: 74%

Depositional characteristics of 7Be and 210Pb in Kuwaiti dust

Aba

Al-Dousari

Ismaeel

2015

J Radioanal Nucl Chem

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Dust fallout fluxes of 210 Pb and 7 Be were measured in Kuwait during October 2009-August 2011. The annual average depositional fluxes of 210 Pb and 7 Be were 134 and 422 Bq m -2 , respectively. The temporal variations of both radionuclides showed a maximum deposition during April of 2010 and 2011.A strong linear relationship between 7 Be and 210 Pb was found. The average dust depositional rate was about 50 mg m -2 h -1 with a maximum of 460 mg m -2 h -1 , while the extreme value of 664 mg m -2 h -1 was recorded in March 2011 when a massive dust storm hit Kuwait. The 210 Pb deposition has a strong correlation with dust deposition because of its terrestrial abundance. Whereas the 7 Be a radionuclide shows a weaker correlation with dust deposition.

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Section: Resultssupporting

confidence: 74%

Depositional characteristics of 7Be and 210Pb in Kuwaiti dust

Aba

Al-Dousari

Ismaeel

2015

J Radioanal Nucl Chem

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“…Studies of dust loadings and fluxes have suggested that there are two main source areas: the Taklimakan and the Badain Juran (Zhang et al, 1998). The Tarim basin experiences some of the most frequent and intense dust storm occurrences on Earth (Zhang, Arimoto and An, 1997).…”

Section: Chinamentioning

confidence: 99%

Desert Dust

Washington¹,

Wiggs²

2011

Arid Zone Geomorphology

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The arid zone contains few perennial lakes; examples such as the Caspian Sea, the Dead Sea and Lake Aral invariably have inflowing rivers rising in fringing uplands or distant humid areas. Instead, the majority of arid and semi-arid regions are characterised by endoreic (internal) drainage or, in extreme cases, may lack integrated surface drainage altogether. Under these circumstances surface depressions become important local and regional foci for the accumulation of water in episodic (termed here ephemeral) lakes. Due to the negative balance between rainfall and evaporation (often exceeding 10:1), these water bodies are often highly saline and, in some cases, supersaturated with salts. Such salt lakes, which have a minimum salinity of 5,000 mg l -1 , in turn lie at one end of a spectrum of otherwise ephemeral and often relict closed basins of varying scales and origins frequently termed playas or pans. Pans and playas have been identified and studied throughout the world's arid lands. In Africa they have been described from the Sahara (Boulaine 1954; Coque 1962); Senegal (Tricart 1953), the Kalahari (Passarge 1904; Lancaster 1978a) and neighbouring regions (de Bruiyn 1971). Holm (1960), Powers et al. (1966) and others have described Arabian sebkhas, both coastal and inland. Playas in many Asian arid environments have been discussed: in Mongolia (Cotton 1942); in Iran (Krinsley 1970); in India (Godbole 1972); in China (Chen and Bowler 1986) and in the USSR (Zemljanitzya 1973). There is a considerable literature on the Australian basins extending from the early works such as Woodward (1897) through to the results of detailed research programmes such as SLEADS (Saline Lakes, Evaporites and Aeolian Deposits; Torgersen et al. 1986; Chivas and de Dekker 1991; Chivas 1995). Playas and pans of the United States received the early attentions of geomorphological pioneers (Russell 1885; Gilbert 1895) and have been subjectto considerable interest ever since especially those in the southwestern deserts (Reynolds et al., 2007), and the Texas High Plains (Wood and Ostercamp, 1987), while those in South America have been given less attention (Tricart 1969, Dargám, 1995. Pans have also been described in areas which experience cold climates, for example, Taylor Valley in Antarctica (Lyons et al. 1998) and the numerous salt lakes of the Pallisers Triangle region of the Canadian Prairies (Last 1994).The identification of pans and playas within arid environments has suggested to some authors that there may be climatic controls on their development (e.g. Tricart 1954, reported in Cooke andWarren 1973). The majority of southern Kalahari and peri-southern Kalahari pans, for example, occur on the arid side of the 500 mm mean annual isohyet and the 1000 mm free evaporation isoline (Goudie and Thomas 1985). However, comparable features are found beyond the limits of modern aridity, for example the Bays of Carolina,

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“…Table I shows the concentrations and ratios of crustal components in PM 10 during the dust storm events. The first dataset in this table is extracted from Zhang et al (1998), showing the average atmospheric concentrations of elements in 9 samples from Chinese desert regions (such as Gobi, Taklimakan, Mu Us, Badain Juran Desert, etc.) during dust storm periods.…”

Section: Chemical Properties Of Dust Storm Samplesmentioning

confidence: 99%

“…Chinese desert regions are widely considered to be the major sources for Asian dust (Zhang et al, 1998). Dust storms (DS) occur frequently in spring (Zhou et al, 1996) over desert or loess areas due to the low rainfall and high frequency of strong winds associated with cold fronts.…”

Section: Introductionmentioning

confidence: 99%

Case studies of Asian dust storm impacts on a coastal site: implication of a good dust storm tracer

Wai

Tanner

2005

Water Air Soil Pollut

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Significant dust storm impacts have seldom been recorded and reported in Hong Kong. Herein, four cases which occurred in Hong Kong during the spring times of recent years are examined using back-trajectory computation and chemical analysis of air-borne samples. All of the cases show that the dust was transported from the source to Hong Kong in 2-5 days and that PM 10 concentrations approached or exceeded the European Union air quality criteria and the USA National Ambient Air Quality Standard. The chemical characteristics of the samples taken in these events agreed both with those from the source regions and with those archived from selected Hong Kong datasets. The concentrations of the crustal constituents (Al, Fe, Mn, Ca) of the Hong Kong samples on the episode days were at least three times higher than the concentrations measured on non-episode days. The mass ratios of Fe/Al and Mn/Al (but not Ca/Al) can act as good tracers of Asian dust storms to this coastal site where sea-salt and other anthropogenic species are normally dominant. Furthermore, unusually high Mg levels indicated a mainly crustal origin for this element, rather than the marine origin normally found at this coastal location. Particulate nitrate exhibited more elevated concentrations in all of the dust storm samples than in non-dust-storm and local samples.

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Concentration, size-distribution and deposition of mineral aerosol over Chinese desert regions

Cited by 94 publications

References 17 publications

Depositional characteristics of 7Be and 210Pb in Kuwaiti dust

Depositional characteristics of 7Be and 210Pb in Kuwaiti dust

Desert Dust

Case studies of Asian dust storm impacts on a coastal site: implication of a good dust storm tracer

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