Influence of Arctic Oscillation on dust activity over northeast Asia

Mao, Rui; Ho, Chin Siong; Shao, Yaping; Gong, D.; Kim, Jhoon

doi:10.1016/j.atmosenv.2010.10.020

Cited by 73 publications

(56 citation statements)

References 33 publications

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“…The maximum monthly average dust deposition was 97.5 t km −2 in southern Xinjiang, which was 6.9 and 8 times more than the deposition in northern and eastern Xinjiang, respectively. These results suggest that dust deposition in south Xinjiang is of similar magnitude to deposition that occurs in the Middle East and Sahel regions (Khalaf and AlHashash, 1983;McTainsh and Walker, 1982;O'Hara et al, 2006).…”

Section: Dust Depositionsupporting

confidence: 49%

Dust deposition and ambient PM<sub>10</sub> concentration in northwest China: spatial and temporal variability

et al. 2017

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Abstract. Eolian dust transport and deposition are important geophysical processes which influence global biogeochemical cycles. Currently, reliable deposition data are scarce in central and east Asia. Located at the boundary of central and east Asia, Xinjiang Province of northwestern China has long played a strategic role in cultural and economic trade between Asia and Europe. In this paper, we investigated the spatial distribution and temporal variation in dust deposition and ambient PM 10

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Section: Dust Depositionsupporting

confidence: 49%

Dust deposition and ambient PM<sub>10</sub> concentration in northwest China: spatial and temporal variability

et al. 2017

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“…Dust aerosols emitted from the great Arabian Desert, the Thar Desert and Somalia are transported eastwards over India and the Indian Ocean reaching even the west coast of mainland Southeast Asia and Indonesia (Mao et al, 2011). The feature of dust transport over the Indian Peninsula and the Bay of Bengal is more prominent during MAM and JJA ( Fig.…”

Section: Horizontal Distribution Of Aerosols and Dustmentioning

confidence: 94%

Nine-year spatial and temporal evolution of desert dust aerosols over South and East Asia as revealed by CALIOP

et al. 2018

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Abstract. We present a 3-D climatology of the desert dust distribution over South and East Asia derived using CALIPSO (Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observation) data. To distinguish desert dust from total aerosol load we apply a methodology developed in the framework of EARLINET (European Aerosol Research Lidar Network). The method involves the use of the particle linear depolarization ratio and updated lidar ratio values suitable for Asian dust, applied to multiyear CALIPSO observations (January 2007-December 2015. The resulting dust product provides information on the horizontal and vertical distribution of dust aerosols over South and East Asia along with the seasonal transition of dust transport pathways. Persistent high D_AOD (dust aerosol optical depth) values at 532 nm, of the order of 0.6, are present over the arid and semi-arid desert regions. Dust aerosol transport (range, height and intensity) is subject to high seasonality, with the highest values observed during spring for northern China (Taklimakan and Gobi deserts) and during summer over the Indian subcontinent (Thar Desert). Additionally, we decompose the CALIPSO AOD (aerosol optical depth) into dust and non-dust aerosol components to reveal the nondust AOD over the highly industrialized and densely populated regions of South and East Asia, where the non-dust aerosols yield AOD values of the order of 0.5. Furthermore, the CALIPSO-based short-term AOD and D_AOD time series and trends between January 2007 and December 2015 are calculated over South and East Asia and over selectedPublished by Copernicus Publications on behalf of the European Geosciences Union. 1338 E. Proestakis et al.: Nine-year spatial and temporal evolution of desert dust aerosols subregions. Positive trends are observed over northwest and east China and the Indian subcontinent, whereas over southeast China trends are mostly negative. The calculated AOD trends agree well with the trends derived from Aqua MODIS (Moderate Resolution Imaging Spectroradiometer), although significant differences are observed over specific regions.

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“…Close correlation has been found between Arctic oscillation (AO) and dust storm frequency in northern China during spring (Gong et al, 2006;Mao et al, 2011). When AO is in a negative phase, colder surface temperatures, strong weather variances, and more frequent cold surges are known to occur over northern China (e.g., Mao et al, 2011). The intensity of AO during winter-spring 2010 underwent a largely negative phase (see http://www.cpc.noaa.gov/products/precip/ CWlink/daily ao index/ao index.html).…”

Section: Average Dust Aot Field and Air Flow Anomalymentioning

confidence: 99%

“…Significant differences appeared in strong wind frequency: the frequency of wind exceeding 7 m s −1 in 2010 (36 %) was 33 % greater than the 30-year average (27 %). Close correlation has been found between Arctic oscillation (AO) and dust storm frequency in northern China during spring (Gong et al, 2006;Mao et al, 2011). When AO is in a negative phase, colder surface temperatures, strong weather variances, and more frequent cold surges are known to occur over northern China (e.g., Mao et al, 2011).…”

Section: Average Dust Aot Field and Air Flow Anomalymentioning

confidence: 99%

Large Asian dust layers continuously reached North America in April 2010

Uno

Eguchi

Yumimoto³

et al. 2011

Atmos. Chem. Phys.

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Abstract.The NASA space-borne Mie-lidar system CALIPSO/CALIOP revealed that multiple large Asian dust layers with a horizontal scale of 2000-3000 km reached North America, occupying the full troposphere, in April 2010. This kind of dust layer transport has not been reported before. Our analysis of CALIOP data and global aerosol model results revealed that frequent dust emissions occurred in northwestern China because of stronger-thanaverage near-surface winds, and that strong stable westerly winds carried the Asian dust from northwestern China to the central Pacific Ocean. A negative pressure anomaly was located in the eastern Pacific Ocean, and the main dust transport path was split into two branches: a northern path and a southern path over North America. Northern-path dust was trapped and stagnant for a longer time than southern path dust and finally subsided under a high-pressure system. Dust along the southern path reached the central US. These complex conditions resulted in a multi-layered structure of dust over North America.

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Influence of Arctic Oscillation on dust activity over northeast Asia

Cited by 73 publications

References 33 publications

Dust deposition and ambient PM<sub>10</sub> concentration in northwest China: spatial and temporal variability

Dust deposition and ambient PM<sub>10</sub> concentration in northwest China: spatial and temporal variability

Nine-year spatial and temporal evolution of desert dust aerosols over South and East Asia as revealed by CALIOP

Large Asian dust layers continuously reached North America in April 2010

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Influence of Arctic Oscillation on dust activity over northeast Asia

Cited by 73 publications

References 33 publications

Dust deposition and ambient PM&lt;sub&gt;10&lt;/sub&gt; concentration in northwest China: spatial and temporal variability

Dust deposition and ambient PM&lt;sub&gt;10&lt;/sub&gt; concentration in northwest China: spatial and temporal variability

Nine-year spatial and temporal evolution of desert dust aerosols over South and East Asia as revealed by CALIOP

Large Asian dust layers continuously reached North America in April 2010

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Dust deposition and ambient PM<sub>10</sub> concentration in northwest China: spatial and temporal variability

Dust deposition and ambient PM<sub>10</sub> concentration in northwest China: spatial and temporal variability