Results 11 to 20 of about 8,334 (293)

A new method for deriving aerosol solar radiative forcing and its first application within MILAGRO/INTEX-B [PDF]

Atmospheric Chemistry and Physics, 2010
We introduce a method for deriving aerosol spectral radiative forcing along with single scattering albedo, asymmetry parameter, and surface albedo from airborne vertical profile measurements of shortwave spectral irradiance and spectral aerosol optical ...
K. S. Schmidt, P. Pilewskie, R. Bergstrom, O. Coddington, J. Redemann, J. Livingston, P. Russell, E. Bierwirth, M. Wendisch, W. Gore, M. K. Dubey, C. Mazzoleni   +11 more
doaj   +1 more source

Error sources in the retrieval of aerosol information over bright surfaces from satellite measurements in the oxygen A band [PDF]

Atmospheric Measurement Techniques, 2018
Retrieving aerosol optical thickness and aerosol layer height over a bright surface from measured top-of-atmosphere reflectance spectrum in the oxygen A band is known to be challenging, often resulting in large errors.
S. Nanda, S. Nanda, M. de Graaf, M. Sneep, J. F. de Haan, P. Stammes, A. F. J. Sanders, O. Tuinder, J. P. Veefkind, J. P. Veefkind, P. F. Levelt, P. F. Levelt   +11 more
doaj   +1 more source

Variations of atmospheric aerosol parameters in periods of seismic activity in Tien–Shan [PDF]

E3S Web of Conferences, 2020
Combination of numerical modeling (MERRA) and ground based (AERONET) monitoring of atmospheric aerosol parameters were used to discover a possible connection to seismic activities within the territory of Tien-Shan.
Sverdlik Leonid
doaj   +1 more source

Seasonal variability of aerosol optical properties observed by means of a Raman lidar at an EARLINET site over Northeastern Spain [PDF]

Atmospheric Chemistry and Physics, 2011
The annual and seasonal variability of aerosol optical properties observed by means of a Raman lidar over Northeastern Spain has been assessed. The lidar representativeness has first been checked against sun-photometer measurements in terms of aerosol ...
M. Sicard, F. Rocadenbosch, M. N. M. Reba, A. Comerón, S. Tomás, D. García-Vízcaino, O. Batet, R. Barrios, D. Kumar, J. M. Baldasano   +9 more
doaj   +1 more source

Quantification of uncertainty in aerosol optical thickness retrieval arising from aerosol microphysical model and other sources, applied to Ozone Monitoring Instrument (OMI) measurements [PDF]

Atmospheric Measurement Techniques, 2014
Satellite instruments are nowadays successfully utilised for measuring atmospheric aerosol in many applications as well as in research. Therefore, there is a growing need for rigorous error characterisation of the measurements.
A. Määttä, M. Laine, J. Tamminen, J. P. Veefkind   +3 more
doaj   +1 more source

AEROSOL PLUMES CHARACTERIZATION BY HYPERSPECTRAL IMAGES COUPLED WITH SENTINEL-2 PRODUCTS [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
In this paper, we focus on the retrieval of microphysical and optical properties of industrial aerosol plumes through a process using airborne hyperspectral and Sentinel-2 multi-spectral images.
G. Calassou, P.-Y. Foucher, J.-F. Leon
doaj   +1 more source

Some implications of sampling choices on comparisons between satellite and model aerosol optical depth fields [PDF]

, 2010
The comparison of satellite and model aerosol optical depth (AOD) fields provides useful information on the strengths and weaknesses of both. However, the sampling of satellite and models is very different and some subjective decisions about data ...
P. I. Palmer, Grainger, R. G., Palmer PI, Grainger RG, Palmer, P. I., A. M. Sayer, Thomas, GE, Sayer AM, Sayer, AM, Palmer, PI, Thomas, Gareth, Thomas, G. E., Thomas GE, Sayer, A. M., Grainger, Roy, Grainger, RG, G. E. Thomas, R. G. Grainger, Palmer, Paul   +18 more
core   +1 more source

Development of the method of remote sensing of low-concentration gases of the atmosphere taking into account the humidity fluctuations of the air [PDF]

E3S Web of Conferences
The emergence of strong desert vortices covering large areas, including the areas of large cities with dense population, the need to quickly obtain sufficient information on the state of desert ecosystems in large areas makes the application of remote ...
Aliyeva Yegana, Mammadova Kifayat, Huseynova Aygun   +2 more
doaj   +1 more source

Sensitivity of Reflectance to Water Vapor and Aerosol Optical Thickness

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2015
The atmospheric condition parameters used in the radiative transfer-based atmospheric correction (AC) are often uncertain. This uncertainty propagates to the estimated reflectance. The reflectance, is, however, not equally sensitive to all the parameters. A sensitivity analysis (SA) helps in prioritizing the parameters.
Nitin Bhatia, Valentyn A. Tolpekin, Ils Reusen, Sindy Sterckx, Jan Biesemans, Alfred Stein   +5 more
openaire   +2 more sources

Sensitivity of aerosol optical thickness and aerosol direct radiative effect to relative humidity [PDF]

Atmospheric Chemistry and Physics, 2008
Abstract. We present a sensitivity study on the effects of spatial and temporal resolution of atmospheric relative humidity (RH) on calculated aerosol optical thickness (AOT) and the aerosol direct radiative effects (DRE) in a global model. Using the same aerosol fields simulated in the Global Modeling Initiative (GMI) model, we find that, on a global ...
H. Bian, M. Chin, J. M. Rodriguez, H. Yu, J. E. Penner, S. Strahan   +5 more
openaire   +3 more sources