Surface Reflectance
Method for Surface Reflectance Estimation with MODIS by Means of Bi-Section between MODIS and Estimated Radiance as well as Atmospheric Correction with Skyradiometer
... Atmospheric correction is important for estimation of surface reflectance (Remote Sensing Reflectance 3 ) in particular for estimation of sea surface reflectance estimation. The ...
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A sea surface reflectance model for (A)ATSR, and application to aerosol retrievals
... in surface reflectance models, such as the “black pixel approximation” (that the water- leaving radiance in the nIR is negligible), have been shown to negatively impact upon the quality of retrieved ocean ...
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Urban Visible/SWIR surface reflectance ratios from satellite and sun photometer measurements in Mexico City
... around 2240 m above see level. We used for each day an average of the sensor and solar geometry in the Mexico City area (less than one degree latitude and longitude). This is an approximation that does not significantly ...
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Influence of aerosol and surface reflectance variability on hyperspectral observed radiance
... Figure 3 shows the results obtained by simulating the ra- diance for the aerosol optical thickness, τ 550 a ∈ 0.00 − 2.00 with 1τ 550 a = 0.1. The variation in simulated radiance due to increasing aerosol loading was ...
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The GRAPE aerosol retrieval algorithm
... retrieval algorithms, is its dependence on assumptions regarding the aerosol state. A variety of perturbations to the assumed aerosol properties and the spectral shape of the surface reflectance have been ...
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USING AEROSOL REFLECTANCE FOR DUST DETECTION
... aerosol reflectance to identify dust phenomena but not in a binary way such as BTD and so we should decompose top of atmosphere (TOA) reflectance to Rayleigh path radiance and surface ...
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Measuring and modeling the effect of surface moisture on the spectral reflectance of coastal beach sand.
... wet reflectance of beach sand composed of quartz ...the reflectance curve is, after an initial steep decline, close to zero for intermediate moisture levels ...wet surface is ...affecting ...
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Understanding the aerosol information content in multi-spectral reflectance measurements using a synergetic retrieval algorithm
... and surface re- flectance) and up to 2–3 DFS for the second step (regarding aerosol type), as shown in Holzer-Popp et ...and surface reflectance at ...
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Surface Spectroscopy of Oxisols, Entisols and Inceptisol and Relationships with Selected Soil Properties
... characterized surface reflectance spectra (A horizon) and related them to traditional soil classification, based on morphological, physical, and chemical properties of representative pedogenetic profiles, ...
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SURFACE ALBEDO OBTAINED WITH MODIS IMAGES IN CASES OF LOW AND HIGH AEROSOL LOADING IN THE ATMOSPHERE
... Twice a day, NASA makes available surface reflectance data derived from MODIS, duly corrected from all atmospheric effects, along seven spectral bands with a spatial resolution of 250 m [r] ...
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HYPERSPECTRAL REMOTE SENSING: EVALUATION OF R95/HSS SENSOR FOR SPATIALIZATION AND CHARACTERIZATION OF SOIL IN MANAUS, AM - BRAZIL
... to surface reflectance using the Fast Line-of-sight Atmospheric Analysis of Spectral Hypercubes (FLAASH) applicative, based on the MODTRAN +4 (Moderate Resolution Transmittance) a radioactive transfer ...
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Integrated three-dimensional reconstruction using reflectance fields
... the surface about its normal) by using a 4D slice of the 8D reflectance ...the reflectance field is obtained by a camera-projector ...the reflectance field to impose the epipolar constraint by ...
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Influence of hydrogen peroxide on the tribocorrosion of titanium
... sample’ surface, which is smaller than the yield strength of titanium causing the destruction of the outer layer, but smaller enough to avoid plastic deformation [6], ...the surface is known as ...
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Large-scale validation of SCIAMACHY reflectance in the ultraviolet
... The reflectance measured by a satellite instrument is at the basis of all geophysical information derived from the obser- ...the reflectance and its calibration. Besides, the spectral reflectance ...
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Surface Morphology And Photoluminescence Properties Of A-GaAsSe Detector
... Abstract: (GaAs:Se) films with thickness 0.5 m have been prepared by flash evaporation technique on glass substrate under vacuum of 10-5mbar. These films have been annealed at different temperatures ( 373 , 473)K. The ...
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Reliability of reflectance measures in passive filters
... the surface before and after environmental exposure can be determined by a reflectometer and used to predict the latent con- centration of ozone in the exposure period via calibration ...
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Metal layer for enhancing optical reflection in passivation layers in thin film solar cells
... For the opening of the point-contacts RIE is used, with the process taking 45 seconds for all samples. Afterwards, the samples that incorporate the metallic layer are shipped to Uppsala University, for 30 nm deposition ...
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Determination of ambroxol in syrups using diffuse reflectance spectroscopy
... The optimization was developed by experimental design, inclu- ding two kinds of designs: the factorial design to evaluate which of the variables were significant factors and the central composite design, to obtain the ...
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The detection of cloud-free snow-covered areas using AATSR measurements
... Any cloud screening method always depends on incoming data and available features of the instrument. The spec- tral coverage of AATSR, which has been used in this work, enables the spectral behaviour of a scene in seven ...
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Determination of hydrochlorothiazide in pharmaceutical formulations by diffuse reflectance spectroscopy
... Experimental design and statistical analysis The entire factorial experiment was carried out in three steps. The objective of step 1 was to perform a screening of the factors that could potentially influence the ...
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