Spatial and temporal distribution of the dust deposition in Central Asia – results from a long term monitoring program

Groll, Michael; Opp, Chr.; Aslanov, I. A.

doi:10.1016/j.aeolia.2012.08.002

Cited by 110 publications

(87 citation statements)

References 57 publications

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“…The results revealed that the higher profits achievable under an organic farming system could reduce the pressure on the environment and improve local livelihoods (Franz et al 2010). Despite these three examples, the scientific evidence base related to the social aspects of land use is very limited, although it is of high societal relevance, particularly regarding the direct effects of salinization and dust storms on human health (Groll et al 2013). This scientific base is also limited because the interactions between land use and human health are not always explicitly discussed.…”

Section: Resultsmentioning

confidence: 99%

“…Thirty-two articles presented research on the use of the landscape for cultural heritage and diversity purposes. Although the people in the region are experiencing significant health problems resulting from soil salinization and land degradation (Groll et al 2013), only 14 articles (4 %) addressed the impacts of land use and degradation on human health. A detailed review of the health-related papers indicated that only three papers discussed some aspects of human health and recreational services in the Aral Sea areas of Central Asia.…”

Section: Resultsmentioning

confidence: 99%

“…The increased dust storms in the Aral Sea area, particularly in the southwestern region of Uzbekistan, represent a challenge impacting human health (Groll et al 2013). Some authors report that the worsening ecological situation in the Aral Sea zone has led to a prevalence of anemia and restrictive pulmonary dysfunction, as well as a high risk of developing urolithiasis in adults and increased infant mortality (Kaneko et al 2002;Kunii et al 2003;Crighton et al 2011;Groll et al 2013).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Impact of agricultural land use in Central Asia: a review

Hamidov

Helming

Balla

2016

Agron. Sustain. Dev.

124

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Agriculture is major sector in the economy of Central Asia. The sustainable use of agricultural land is therefore essential to economic growth, human well-being, social equity, and ecosystem services. However, salinization, erosion, and desertification cause severe land degradation which, in turn, degrade human health and ecosystem services. Here, we review the impact of agricultural land use in the five countries of Central Asia, Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan, and Uzbekistan, during 2008-2013 in 362 articles. We use the Land Use Functions framework to analyze the type and relative shares of environmental, economic, and social topics related to agricultural land use. Our major findings are (1) research on land use in Central Asia received high levels of international attention and the trend in the number of publications exceeded the global average. (2) The impacts of land use on abiotic environmental resources were the most explored. (3) Little research is available about how agricultural land use affects biotic resources. (4) Relationships between land degradation, e.g., salinization and dust storms, and human health were the least explored. (5) The literature is dominated by indirect methods of data analysis, such as remote sensing and mathematical modeling, and in situ data collection makes up only a small proportion.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Impact of agricultural land use in Central Asia: a review

Hamidov

Helming

Balla

2016

Agron. Sustain. Dev.

124

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“…Chemical analysis of the collected dust (Gomes and Gillette, 1993) showed a low iron content for Central Asian dust. A calcareous character and high contents of soluble salts were also observed (Miller-Schulze et al, 2011;Schettler et al, 2014;Groll et al, 2013;Andronova et al, 1993). In general, however, a very high variability lead to considerably different results depending on sampling location.…”

Section: Introductionmentioning

confidence: 90%

Long-term profiling of mineral dust and pollution aerosol with multiwavelength polarization Raman lidar at the Central Asian site of Dushanbe, Tajikistan: case studies

et al. 2017

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Abstract. For the first time, continuous vertically resolved aerosol measurements were performed by lidar in Tajikistan, Central Asia. Observations with the multiwavelength polarization Raman lidar Polly XT were conducted during CADEX (Central Asian Dust EXperiment) in Dushanbe, Tajikistan, from March 2015 to August 2016. Co-located with the lidar, a sun photometer was also operated. The goal of CADEX is to provide an unprecedented data set on vertically resolved aerosol optical properties in Central Asia, an area highly affected by climate change but largely missing vertically resolved aerosol measurements. During the 18-month measurement campaign, mineral dust was detected frequently from ground to the cirrus level height. In this study, an overview of the measurement period is given and four typical but different example measurement cases are discussed in detail. Three of them are dust cases and one is a contrasting pollution aerosol case. Vertical profiles of the measured optical properties and the calculated dust and non-dust mass concentrations are presented. Dust source regions were identified by means of backward trajectory analyses. A lofted layer of Middle Eastern dust with an aerosol optical thickness (AOT) of 0.4 and an extinction-related Ångström exponent of 0.41 was measured. In comparison, two near-ground dust cases have Central Asian sources. One is an extreme dust event with an AOT of 1.5 and Ångström exponent of 0.12 and the other one is a most extreme dust event with an AOT of above 4 (measured by sun photometer) and an Ångström exponent of −0.08. The observed lidar ratios (and particle linear depolarization ratios) in the presented dust cases range from 40.3 to 46.9 sr (and 0.18-0.29) at 355 nm and from 35.7 to 42.9 sr (0.31-0.35) at 532 nm wavelength. The particle linear depolarization ratios indicate almost unpolluted dust in the case of a lofted dust layer and pure dust in the near-ground dust cases. The lidar ratio values are lower than typical lidar ratio values for Saharan dust (50-60 sr) and comparable to Middle Eastern or west-Asian dust lidar ratios (35-45 sr). In contrast, the presented case of pollution aerosol of local origin has an Ångström exponent of 2.07 and a lidar ratio (particle linear depolarization ratio) of 55.8 sr (0.03) at 355 nm and 32.8 sr (0.08) at 532 nm wavelength.

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“…It is likely that 2009, 2011, and 2013 had very intensive dust storms. In fact, based on the measurement taken by Groll et al [10], the most severe dust storm was registered in September 2009 in Uzbekistan due to very strong surface winds. Limited information is further available on that dust storm case.…”

Section: Methodsmentioning

confidence: 99%

Analysis of Dust Aerosol Retrievals Using Satellite Data in Central Asia

Sokolik

2018

Atmosphere

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Several long-term monitoring of aerosol datasets from the Moderate Resolution Imaging Spectroradiometer (MODIS) on board Terra/Aqua, Multi-angle Imaging SpectroRadiometer (MISR), Sea-Viewing Wide Field-of-View Sensor (SeaWiFS) were used to derive the dust aerosol optical depth (DOD) in Central Asia based on the Angstrom exponent parameter and/or the particle shape. All sensors agree very well on the interannual variability of DOD. The seasonal analysis of DOD and dust occurrences identified the largest dust loading and the most frequent dust occurrence in the spring and summer, respectively. No significant trend was found during the research period in terms of both DOD and the dust occurrence. Further analysis of Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) aerosol products on a case-by-case basis in most dust months of 2007 suggested that the vertical structure is varying in terms of the extension and the dust loading from one event to another, although dust particles of most episodes have similar physical characteristics (particle shape and size). Our analysis on the vertical structure of dust plumes, the layer-integrated color ratio and depolarization ratio indicates a varied climate effect (e.g., the direct radiative impact) by mineral dust, dependent on the event being observed in Central Asia.

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Spatial and temporal distribution of the dust deposition in Central Asia – results from a long term monitoring program

Cited by 110 publications

References 57 publications

Impact of agricultural land use in Central Asia: a review

Impact of agricultural land use in Central Asia: a review

Long-term profiling of mineral dust and pollution aerosol with multiwavelength polarization Raman lidar at the Central Asian site of Dushanbe, Tajikistan: case studies

Analysis of Dust Aerosol Retrievals Using Satellite Data in Central Asia

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