Aerosol optical depth retrieval
Validation of a modified AVHRR aerosol optical depth retrieval algorithm over Central Europe
... For most of the sites, the differences between NOAA-17 and NOAA-18 are small and could be due to undetected sub- pixel clouds or uncertainties in calibration (Li et al., 2009). The time-of-day should not largely affect ...
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Remote sensing of aerosols by using polarized, directional and spectral measurements within the A-Train: the PARASOL mission
... The fine-mode optical depth can also be compared to AERONET measurements. Over ocean, the accuracy is gen- erally lower (correlation of 0.78) than for the total AOD (Br´eon et al., 2011) partly due to some ...
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Retrieval of aerosol optical depth in the visible range with a Brewer spectrophotometer in Athens
... provide aerosol optical depths (AODs) at a wavelength of about 440 ...novel retrieval algorithm was specifically developed and the resulting AODs were compared to those obtained from a collocated ...
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Measurement of aerosol optical depth and sub-visual cloud detection using the optical depth sensor (ODS)
... AOD retrieval both in blue and red as well as for detecting clouds during morning and evening ...identical optical heads, each making use of two parabolic mirrors facing each other and surrounded by black ...
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A surface reflectance scheme for retrieving aerosol optical depth over urban surfaces in MODIS Dark Target retrieval algorithm
... for retrieval over vegetated and other “dark” surface ...provide aerosol retrieval over very bright surface ...a retrieval focused on only one city, we seek a surface parameterization that is ...
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An over-land aerosol optical depth data set for data assimilation by filtering, correction, and aggregation of MODIS Collection 5 optical depth retrievals
... over-land aerosol retrieval (Levy et ...in retrieval of AOD, developing filters and corrections to improve data quality when possible, and characterizing residual uncer- tainty for use in ...
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Towards a long-term global aerosol optical depth record: applying a consistent aerosol retrieval algorithm to MODIS and VIIRS-observed reflectance
... Figure 2 presents red–green–blue (RGB) imagery and AOD retrieval for a near-overlapping scene over India and the Bay of Bengal. Both MODIS and VIIRS images start at 07:35 UTC on 5 March 2013, but with ground-track ...
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Evaluating the assumptions of surface reflectance and aerosol type selection within the MODIS aerosol retrieval over land: the problem of dust type selection
... Abstract. Aerosol Optical Depth (AOD) and ˚ Angstr¨om ex- ponent (AE) values derived with the MODIS retrieval al- gorithm over land (Collection 5) are compared with ground based sun photometer ...
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Application of spectral analysis techniques to the intercomparison of aerosol data – Part 4: Synthesized analysis of multisensor satellite and ground-based AOD measurements using combined maximum covariance analysis
... various aerosol and climate-related ...(MODIS) aerosol prod- ucts to study mineral dust plume evolution over the Atlantic, Torres et ...using aerosol retrievals from the Ozone Monitoring Instrument ...
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Critical evaluation of the MODIS Deep Blue aerosol optical depth product for data assimilation over North Africa
... Shown in Figs. 2 and 3, the QA flag is necessary for high- lighting retrievals that are the most “trustworthy” (Hsu et al., 2004). However, there are limitations in using data with only “very good” QA flags. For example, ...
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Synchronous polar winter starphotometry and lidar measurements at a High Arctic station
... mode optical depth at a ref- erence wavelength of 500 nm via the spectral deconvolu- tion algorithm (SDA) of O’Neill et ...that aerosol (and cloud) optics are largely driven by independent fine and ...
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Detecting layer height of smoke aerosols over vegetated land and water surfaces via oxygen absorption bands: hourly results from EPIC/DSCOVR in deep space
... and aerosol components removed) MODIS reflectance observations from both the Terra and Aqua satellites over a 16 d ...columnar optical depth (Kokhanovsky et ...ALH retrieval because ...
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Screening for snow/snowmelt in SNPP VIIRS aerosol optical depth algorithm
... overland aerosol algorithms from passive sensors make assumptions about surface reflectance properties in the retrieval scene in order to separate the signal from aerosol scattering in the atmosphere ...
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OPTICAL PROPERTIES OF LABORATORY GENERATED AEROSOL: COMPLEX REFRACTIVE INDEX RETRIEVAL FOR POLYSTYRENE LATEX SPHERES, AND EXTINCTION ENHANCEMENT OF MONTMORILLONITE BY WATER SWELLING
... ambient aerosol as a function of size and composition in order to better understand potential climate ...measure aerosol sources was installing instruments at large anthropogenic emitters like power plants ...
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Fast and simple model for atmospheric radiative transfer
... Abstract. Radiative transfer models (RTMs) are of utmost importance for quantitative remote sensing, especially for compensating atmospheric perturbation. A persistent trade- off exists between approaches that prefer ...
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The GRAPE aerosol retrieval algorithm
... the retrieval is not very sensitive to the aerosol height itself, Marsh et ...of aerosol properties. Variation of aerosol properties with height leads to effects similar to those described ...
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Understanding the aerosol information content in multi-spectral reflectance measurements using a synergetic retrieval algorithm
... 40 aerosol mixtures from Table ...identical aerosol type but variable aerosol optical depth ranging from 0 to ...albedo, aerosol type are ...of aerosol mixtures with ...
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Retrieval of aerosol optical depth in vicinity of broken clouds from reflectance ratios: case study
... the retrieval of aerosol optical depth (AOD) is evaluated using extensive airborne and ground-based data sets collected during the Cloud and Land Surface Interac- tion Campaign (CLASIC) and ...
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Retrieval of aerosol optical depth over land surfaces from AVHRR data
... the Aerosol-cci: ESA-ESRIN project AO/1-6207/09/I-LG, Globemission: ESA- ESRIN Data Users Element (DUE), project AO/1-6721/11/I-NB and by the European Commission through projects Marco Polo: EU FP7 SPACE grant ...
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Validation, comparison, and integration of GOCI, AHI, MODIS, MISR, and VIIRS aerosol optical depth over East Asia during the 2016 KORUS-AQ campaign
... distinguish aerosol types (Kim et ...sensors, aerosol optical properties can be retrieved with an accuracy as high as that of LEO sensors, and at much higher temporal resolutions, from a few minutes ...
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