Satellite monitoring of the biomass-burning aerosols during the wildfires of August 2007 in Greece: Climate implications

Kaskaoutis, Dimitris G.; Kharol, Shailesh Kumar; Sifakis, N.; Nastos, Panagiotis T.; Sharma, Anu Rani; Badarinath, K. V. S.; Kambezidis, H. D.

doi:10.1016/j.atmosenv.2010.09.043

Cited by 56 publications

(33 citation statements)

References 55 publications

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“…The MODIS aerosol number estimate is to the authors' best knowledge an unvalidated quantity, although it has been used, examined, or compared with other data in several studies (Gassó and Hegg, 2003;Li et al, 2010;Kaskaoutis et al, 2011;Krüger and Graßl, 2011). In contrast, the AOD over ocean has been compared more thoroughly with other satellite and ground-based datasets and its strengths and limitations are fairly well-understood (e.g., Zhang and Reid, 2006;Mishchenko et al, 2007Mishchenko et al, , 2010Remer et al, 2008;Kahn et al, 2009Kahn et al, , 2011Shi et al, 2011;Smirnov et al, 2011;Kleidman et al, 2012;Sayer et al, 2012a, and others).…”

Section: Data Description and Methodologymentioning

confidence: 99%

Estimating marine aerosol particle volume and number from Maritime Aerosol Network data

et al. 2012

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Abstract. As well as spectral aerosol optical depth (AOD), aerosol composition and concentration (number, volume, or mass) are of interest for a variety of applications. However, remote sensing of these quantities is more difficult than for AOD, as it is more sensitive to assumptions relating to aerosol composition. This study uses spectral AOD measured on Maritime Aerosol Network (MAN) cruises, with the additional constraint of a microphysical model for unpolluted maritime aerosol based on analysis of Aerosol Robotic Network (AERONET) inversions, to estimate these quantities over open ocean. When the MAN data are subset to those likely to be comprised of maritime aerosol, number and volume concentrations obtained are physically reasonable. Attempts to estimate surface concentration from columnar abundance, however, are shown to be limited by uncertainties in vertical distribution. Columnar AOD at 550 nm and aerosol number for unpolluted maritime cases are also compared with Moderate Resolution Imaging Spectroradiometer (MODIS) data, for both the present Collection 5.1 and forthcoming Collection 6. MODIS provides a best-fitting retrieval solution, as well as the average for several different solutions, with different aerosol microphysical models. The "average solution" MODIS dataset agrees more closely with MAN than the "best solution" dataset. Terra tends to retrieve lower aerosol number than MAN, and Aqua higher, linked with differences in the aerosol models commonly chosen. Collection 6 AOD is likely to agree more closely with MAN over open ocean than Collection 5.1. In situations where spectral AOD is measured accurately, and aerosol microphysical properties are reasonably well-constrained, estimates of aerosol number and volume using MAN or similar data would provide for a greater variety of potential comparisons with aerosol properties derived from satellite or chemistry transport model data. However, without accurate AOD data and prior knowledge of microphysical properties, such attempts are fraught with high uncertainties.

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Section: Data Description and Methodologymentioning

confidence: 99%

Estimating marine aerosol particle volume and number from Maritime Aerosol Network data

et al. 2012

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“…Coheur et al, 2009;Ross et al, 2013), aerosol burden (e.g. Kaskaoutis et al, 2011;Ichoku and Ellison, 2014), and their height, including on occasion the vertical distribution of material within them (e.g. Kahn et al, 2008).…”

Section: Earth Observation Data Used To Support Wildfire Injection Hementioning

confidence: 99%

A review of approaches to estimate wildfire plume injection height within large-scale atmospheric chemical transport models

et al. 2016

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Abstract. Landscape fires produce smoke containing a very wide variety of chemical species, both gases and aerosols. For larger, more intense fires that produce the greatest amounts of emissions per unit time, the smoke tends initially to be transported vertically or semi-vertically close by the source region, driven by the intense heat and convective energy released by the burning vegetation. The column of hot smoke rapidly entrains cooler ambient air, forming a rising plume within which the fire emissions are transported. The characteristics of this plume, and in particular the height to which it rises before releasing the majority of the smoke burden into the wider atmosphere, are important in terms of how the fire emissions are ultimately transported, since for example winds at different altitudes may be quite different. This difference in atmospheric transport then may also affect the longevity, chemical conversion, and fate of the plumes chemical constituents, with for example very high plume injection heights being associated with extreme long-range atmospheric transport. Here we review how such landscape-scale fire smoke plume injection heights are represented in largerscale atmospheric transport models aiming to represent the impacts of wildfire emissions on component of the Earth system. In particular we detail (i) satellite Earth observation data sets capable of being used to remotely assess wildfire plume height distributions and (ii) the driving characteristics of the causal fires. We also discuss both the physical mechanisms and dynamics taking place in fire plumes and investigate the efficiency and limitations of currently available injection height parameterizations. Finally, we conclude by suggesting some future parameterization developments and ideas on Earth observation data selection that may be relevant to the instigation of enhanced methodologies aimed at injection height representation.

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“…Numerous studies Ravetta et al, 2007;Liu et al, 2009;Kaskaoutis et al, 2011;Barnaba et al, 2011;Amiridis et al, 2012;Baldassarre et al, 2015) have also been dedicated to biomass burning aerosols over the Mediterranean, which are mainly observed in July and August (driest months of the year), when the development of forest fires is favored (Pace et al, 2005). Long-term observations of absorbing aerosols have clearly shown the major role of long-range transport of biomass (agriculture waste) burning in the eastern Mediterranean (Sciare et al, 2008).…”

Section: Mallet Et Al: Overview Of the Charmex/adrimed Summer 201mentioning

confidence: 99%

Overview of the Chemistry-Aerosol Mediterranean Experiment/Aerosol Direct Radiative Forcing on the Mediterranean Climate (ChArMEx/ADRIMED) summer 2013 campaign

et al. 2016

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Abstract. The Chemistry-Aerosol Mediterranean Experiment (ChArMEx; http://charmex.lsce.ipsl.fr) is a collaborative research program federating international activities to investigate Mediterranean regional chemistry-climate interactions. A special observing period (SOP-1a) including intensive airborne measurements was performed in the framework of the Aerosol Direct Radiative Impact on the regional climate in the MEDiterranean region (ADRIMED) project during the Mediterranean dry season over the western and central Mediterranean basins, with a focus on aerosol-radiation measurements and their modeling. The SOP-1a took place from 11 June to 5 July 2013. Airborne measurements were made by both the ATR-42 and F-20 French research aircraft operated from Sardinia (Italy) and instrumented for in situ and remote-sensing measurements, respectively, and by sounding and drifting balloons, launched in Minorca. The experimental setup also involved several ground-based measurement sites on islands including two ground-based reference stations in Corsica and Lampedusa and secondary monitoring sites in Minorca and Sicily. Additional measurements including lidar profiling were also performed on alert during aircraft operations at EARLINET/ACTRIS stations at Granada and Barcelona in Spain, and in southern Italy. Remote-sensing aerosol products from satellites (MSG/SEVIRI, MODIS) and from the AERONET/PHOTONS network were also used. Dedicated meso-scale and regional modeling experiments were performed in relation to this observational effort. We provide here an overview of the different surface and aircraft observations deployed during the ChArMEx/ADRIMED period and of associated modeling studies together with an analysis of the synoptic conditions that determined the aerosol emission and transport. Meteorological conditions observed during this campaign (moderate temperatures and southern flows) were not favorable to producing high levels of atmospheric pollutants or intense biomass burning events in the region. However, numerous mineral dust plumes were observed during the campaign, with the main sources located in Morocco, Algeria and Tunisia, leading to aerosol optical depth (AOD) values ranging between 0.2 and 0.6 (at 440 nm) over the western and central Mediterranean basins. One important point of this experiment concerns the direct observations of aerosol extinction onboard the ATR-42, using the CAPS system, showing local maxima reaching up to 150 M m −1 within the dust plume. Non-negligible aerosol extinction (about 50 M m −1 ) has also been observed within the marine boundary layer (MBL). By combining the ATR-42 extinction coefficient observations with absorption and scattering measurements, we performed a complete optical closure revealing excellent agreement with estimated optical properties. This additional information on extinction properties has allowed calculation of the dust single scattering albedo (SSA) with a high level of confidence over the western Mediterranean. Our results show a moderate variability from 0....

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Satellite monitoring of the biomass-burning aerosols during the wildfires of August 2007 in Greece: Climate implications

Cited by 56 publications

References 55 publications

Estimating marine aerosol particle volume and number from Maritime Aerosol Network data

Estimating marine aerosol particle volume and number from Maritime Aerosol Network data

A review of approaches to estimate wildfire plume injection height within large-scale atmospheric chemical transport models

Overview of the Chemistry-Aerosol Mediterranean Experiment/Aerosol Direct Radiative Forcing on the Mediterranean Climate (ChArMEx/ADRIMED) summer 2013 campaign

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