Lidar methods for observing mineral dust

Sugimoto, Naoki; Huang, Zhongwei

doi:10.1007/s13351-014-3068-9

Cited by 31 publications

(17 citation statements)

References 63 publications

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“…More dust aerosols may be injected into the atmosphere as a result of accelerated dryland expansion under climate change . The long-range transport path of Asian dust from northwest China to the Pacific Ocean is well understood (e.g., Uno et al 2001, Takemura et al 2002, Huang et al 2008a, Wang et al 2010a, Sugimoto and Huang 2014, as is the route to North America along two main transport pathways (Jaffe et al 1999; furthermore, even a transport route of more than one full circuit around the globe has been documented (Uno et al 2009). Mineral dust particles not only adversely impact human health, they also have a large impact on the Earth's radiation budget by scattering and absorbing solar and terrestrial radiation due to their spectral characteristics and large optical depth (Haywood et al 2003, Hayasaka et al 2007, Chen et al 2013.…”

Section: Introductionmentioning

confidence: 99%

Short-cut transport path for Asian dust directly to the Arctic: a case study

Huang

Hayasaka

et al. 2015

Environ. Res. Lett.

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103

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Asian dust can be transported long distances from the Taklimakan or Gobi desert to North America across the Pacific Ocean, and it has been found to have a significant impact on ecosystems, climate, and human health. Although it is well known that Asian dust is transported all over the globe, there are limited observations reporting Asian dust transported to the Arctic. We report a case study of a largescale heavy dust storm over East Asia on 19 March 2010, as shown by ground-based and space-borne multi-sensor observations, as well as NCEP/NCAR reanalysis data and HYSPLIT trajectories. Our analysis suggests that Asian dust aerosols were transported from northwest China to the Arctic within 5 days, crossing eastern China, Japan and Siberia before reaching the Arctic. The results indicate that Asian dust can be transported for long distances along a previously unreported transport path. Evidence from other dust events over the past decade (2001-2010) also supports our results, indicating that dust from 25.2% of Asian dust events has potentially been transported directly to the Arctic. The transport of Asian dust to the Arctic is due to cyclones and the enhanced East Asia Trough (EAT), which are very common synoptic systems over East Asia. This suggests that many other large dust events would have generated long-range transport of dust to the Arctic along this path in the past. Thus, Asian dust potentially affects the Arctic climate and ecosystem, making climate change in the Arctic much more complex to be fully understood.

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Section: Introductionmentioning

confidence: 99%

Short-cut transport path for Asian dust directly to the Arctic: a case study

Huang

Hayasaka

et al. 2015

Environ. Res. Lett.

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103

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“…Welton et al [7] monitored global changes in clouds and aerosols. In Japan, the National Institute for Environmental Studies (NIES) also has a LIDAR Monitoring Network, which is called AD-NET (Sugimoto and Huang, 2014) [24]. Hayashida et al [8] observed the volcanic disturbances in the stratospheric aerosol layer over Tsukuba, Japan.…”

Section: Introductionmentioning

confidence: 99%

Mie LIDAR Observations of Tropospheric Aerosol over Wuhan

Gong

Liu

et al. 2015

Atmosphere

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Abstract:Wuhan is a rapidly developing large city in central China. To analyze the aerosol characteristics over Wuhan, the optical properties of the nocturnal aerosol layers in the lower troposphere were observed using a ground-based LIDAR(Light Detection And Ranging) located in the Laboratory of Information Engineering in Surveying, Mapping and Remote Sensing (LIESMARS) from Wuhan University, China (114°21′E, 30°32′N) in January 2013-January 2015. The vertical distribution and temporal variation of tropospheric aerosols over Wuhan were summarized. The atmospheric boundary layer height (ABLH) was mainly at an altitude of 1.5-2 km (~33.1% probability), with an annual average of 1.66 km. The ABLH was higher in spring-summer (~2 km) and lower in autumn-winter (~1.2 km). The aerosol optical depth (AOD) was higher in spring-autumn than in summer-winter. The highest AOD was about 0.79 in October and the lowest was about 0.08 in January. The annual average was about 0.3. To study the relationship between the AOD and the particulate matter ≤2.5 µm in the aerodynamic diameter (PM2.5) in the lower troposphere, a typical haze event from 9-14 October 2014 was investigated. The results showed a correlation coefficient of 0.5165 between these two variables.

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“…Lidar is a useful tool to provide the vertical distribution of atmospheric aerosols (Sugimoto and Huang, 2014), including ground-based lidars, aircraft-based lidars, and the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) on board the CloudAerosol Lidar and Infrared Pathfinder Satellite Observation (CALIPSO) satellite ). The CALIOP observations are consistent with the Moderate-resolution Imaging Spectroradiometer (MODIS) results for the geographical patterns and seasonal variations (Yu et al, 2010).…”

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Aerosol vertical distribution and optical properties over China from long-term satellite and ground-based remote sensing

et al. 2017

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Abstract. The seasonal and spatial variations of vertical distribution and optical properties of aerosols over China are studied using long-term satellite observations from the Cloud-Aerosol Lidar with Orthogonal Polarization (CALIOP) and ground-based lidar observations and Aerosol Robotic Network (AERONET) data. The CALIOP products are validated using the ground-based lidar measurements at the Semi-Arid Climate and Environment Observatory of Lanzhou University (SACOL). The Taklamakan Desert and Tibetan Plateau regions exhibit the highest depolarization and color ratios because of the natural dust origin, whereas the North China Plain, Sichuan Basin and Yangtze River Delta show the lowest depolarization and color ratios because of aerosols from secondary formation of the anthropogenic origin. Certain regions, such as the North China Plain in spring and the Loess Plateau in winter, show intermediate depolarization and color ratios because of mixed dust and anthropogenic aerosols. In the Pearl River Delta region, the depolarization and color ratios are similar to but higher than those of the other polluted regions because of combined anthropogenic and marine aerosols. Long-range transport of dust in the middle and upper troposphere in spring is well captured by the CALIOP observations. The seasonal variations in the aerosol vertical distributions reveal efficient transport of aerosols from the atmospheric boundary layer to the free troposphere because of summertime convective mixing. The aerosol extinction lapse rates in autumn and winter are more positive than those in spring and summer, indicating trapped aerosols within the boundary layer because of stabler meteorological conditions. More than 80 % of the column aerosols are distributed within 1.5 km above the ground in winter, when the aerosol extinction lapse rate exhibits a maximum seasonal average in all study regions except for the Tibetan Plateau. The aerosol extinction lapse rates in the polluted regions are higher than those of the less polluted regions, indicating a stabilized atmosphere due to absorptive aerosols in the polluted regions. Our results reveal that the satellite and ground-based remote-sensing measurements provide the key information on the long-term seasonal and spatial variations in the aerosol vertical distribution and optical properties, regional aerosol types, long-range transport and atmospheric stability, which can be utilized to more precisely assess the direct and indirect aerosol effects on weather and climate.

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Lidar methods for observing mineral dust

Cited by 31 publications

References 63 publications

Short-cut transport path for Asian dust directly to the Arctic: a case study

Short-cut transport path for Asian dust directly to the Arctic: a case study

Mie LIDAR Observations of Tropospheric Aerosol over Wuhan

Aerosol vertical distribution and optical properties over China from long-term satellite and ground-based remote sensing

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