Space-based remote sensing of atmospheric aerosols: The multi-angle spectro-polarimetric frontier

Kokhanovsky, Alexander A.; Davis, Anthony B.; Cairns, Brian; Dubovik, Оleg; Hasekamp, Otto; Sano, Itaru; Mukai, Sonoyo; Розанов, В. В.; Litvinov, Pavel; Lapyonok, T.; Kolomiets, I. A.; Oberemok, Yevgen; Savenkov, Sergey N.; Martin, William G.; Wasilewski, A. P.; Noia, Antonio Di; Stap, F. A.; Rietjens, Jeroen; Xu, Feng; Natraj, Vijay; Duan, Minzheng; Cheng, Tianhai; Munro, Rosemary

doi:10.1016/j.earscirev.2015.01.012

Cited by 84 publications

(43 citation statements)

References 183 publications

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“…The magnitude and sign of the aerosol-induced changes of the radiation budget at the regional and global scales are highly uncertain, since these changes are influenced substantially by strong temporal and spatial variations of aerosol loading, chemical composition and mixing state [5][6][7]. Since the advent of observational techniques for monitoring these variations from surface, air and space, the diversity of sensors with improved precision and accuracy has increased and corresponding innovative methods have been developed [8][9][10][11]. Aircraft measurements are becoming increasingly important for model validation studies because they can document aerosol variations in remote regions where access to ground-based observations is difficult or unavailable, and offer observations with higher temporal resolution than can typically be attained with satellites [12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Airborne Aerosol in Situ Measurements during TCAP: A Closure Study of Total Scattering

et al. 2015

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We present a framework for calculating the total scattering of both non-absorbing and absorbing aerosol at ambient conditions from aircraft data. Our framework is developed emphasizing the explicit use of chemical composition data for estimating the complex refractive index (RI) of particles, and thus obtaining improved ambient size spectra derived from Optical Particle Counter (OPC) measurements. The feasibility of our framework for improved calculations of total scattering is demonstrated using three types of data collected by the U.S. Department of Energy's (DOE) aircraft during the Two-Column Aerosol Project (TCAP). Namely, these data types are: (1) size distributions measured by a suite of OPC's; (2) chemical composition data measured by an Aerosol Mass Spectrometer and a Single Particle Soot Photometer; and (3) the dry total scattering coefficient measured by a integrating nephelometer and scattering enhancement factor measured with a humidification system. We demonstrate that good agreement (~10%) between the observed and calculated scattering can be obtained under ambient conditions (RH < 80%) by applying chemical composition data for the RI-based correction OPEN ACCESSAtmosphere 2015, 6 1070 of the OPC-derived size spectra. We also demonstrate that ignoring the RI-based correction or using non-representative RI values can cause a substantial underestimation (~40%) or overestimation (~35%) of the calculated scattering, respectively.

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Section: Introductionmentioning

confidence: 99%

Airborne Aerosol in Situ Measurements during TCAP: A Closure Study of Total Scattering

et al. 2015

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“…Air quality becomes worse particularly in urban areas, and therefore, high-resolution measurements of atmospheric aerosols at spatial, temporal, and spectral scales have been planned. Accordingly, many potential applications for the type of radiation simulation by MSOS involving polarization information are required (Kokhanovsky et al, 2015). In addition, MSOS is expected to be available for aerosol retrieval in a mixture case of cloud and haze.…”

Section: Discussion and Summarymentioning

confidence: 99%

A study of aerosol pollution episode due to agriculture biomass burning in the east-central China using satellite data

Mukai

Nakata

Yasumoto

et al. 2015

Front. Environ. Sci.

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Aerosol distributions in East Asia are complicated owing to both natural factors and human activities. In recent years, influence of yellow sand and biomass burning aerosols generated by agricultural biomass burning (ABB) has been noted upon the severe air pollution episodes. This work intends to make the retrieval algorithm more efficient and to make the aerosol model more tractable as far as heavy air pollution caused by ABB is concerned. Aerosol retrieval in the hazy atmosphere is achieved based on radiation simulation method of successive order of scattering (MSOS) for the moderate resolution imaging spectroradiometer (MODIS) on AQUA data. The retrieved aerosol properties agree well with the ground measurements and numerical model simulations. Multi-angle observations with the polarization and directionality of the Earth's reflectances (POLDER) on the polarization & anisotropy of reflectances for atmospheric sciences coupled with observations from a lidar (PARASOL) are available for aerosol retrieval from a mixture of cloud and haze, and many potential applications of MSOS involving polarization information are expected to be available for cloud as well as aerosol episodes.

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“…However, most of the AERONET site is representative of a targeted area. This deployment style would not provide sufficient measurements for future aerosol retrieval algorithms (Kokhanovsky et al, 2015), such as extracting aerosol properties with fine resolution or vertical distribution, and considering a mixture of ground conditions. In order to apply these requirements, the AERONET group has embarked on a special campaign to deploy many AERONET instruments in a specific area, which is called Distributed Regional Aerosol Gridded Observation Networks (DRAGON).…”

Section: Introductionmentioning

confidence: 99%

Regional and local variations in atmospheric aerosols using ground-based sun photometry during Distributed Regional Aerosol Gridded Observation Networks (DRAGON) in 2012

et al. 2016

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Abstract. Aerosol mass concentrations are affected by local emissions as well as long-range transboundary (LRT) aerosols. This work investigates regional and local variations of aerosols based on Distributed Regional Aerosol Gridded Observation Networks (DRAGON). We constructed DRAGON-Japan and DRAGON-Osaka in spring of 2012. The former network covers almost all of Japan in order to obtain aerosol information in regional scale over Japanese islands. It was determined from the DRAGON-Japan campaign that the values of aerosol optical thickness (AOT) decrease from west to east during an aerosol episode. In fact, the highest AOT was recorded at Fukue Island at the western end of the network, and the value was much higher than that of urban areas. The latter network (DRAGON-Osaka) was set as a dense instrument network in the megalopolis of Osaka, with a population of 12 million, to better understand local aerosol dynamics in urban areas.AOT was further measured with a mobile sun photometer attached to a car. This transect information showed that aerosol concentrations rapidly changed in time and space together when most of the Osaka area was covered with moderate LRT aerosols. The combined use of the dense instrument network (DRAGON-Osaka) and high-frequency measurements provides the motion of aerosol advection, which coincides with the wind vector around the layer between 700 and 850 hPa as provided by the reanalysis data of the National Centers for Environmental Prediction (NCEP).

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Space-based remote sensing of atmospheric aerosols: The multi-angle spectro-polarimetric frontier

Cited by 84 publications

References 183 publications

Airborne Aerosol in Situ Measurements during TCAP: A Closure Study of Total Scattering

Airborne Aerosol in Situ Measurements during TCAP: A Closure Study of Total Scattering

A study of aerosol pollution episode due to agriculture biomass burning in the east-central China using satellite data

Regional and local variations in atmospheric aerosols using ground-based sun photometry during Distributed Regional Aerosol Gridded Observation Networks (DRAGON) in 2012

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