Results 111 to 120 of about 28,409 (225)

Optical and Microphysical Properties of the Aerosols during a Rare Event of Biomass-Burning Mixed with Polluted Dust

open access: yesAtmosphere
A rare event of mixed biomass-burning and polluted dust aerosols was observed over Athens, Greece (37.9° N, 23.6° E), during 21–26 May 2014. This event was studied using a synergy of a 6-wavelength elastic-Raman-depolarization lidar measurements, a CIMEL
Marilena Gidarakou   +13 more
doaj   +1 more source

Aerosol Characteristics at a high-altitude station Nainital during the ISRO-GBP Land Campaign-II

open access: yes, 2006
During the second land campaign (LC-II) organised by ISRO-GBP, extensive ground-based measurements of aerosol characteristics were carried out over Manora Peak (29.4oN; 79.5oE; 1951 metres above mean sea level), Nainital (a high altitude station located ...
Dumka, U. C.   +5 more
core  

Calibration of the spin-scan ozone imager aboard the dynamics Explorer 1 satellite [PDF]

open access: yes
The calibration technique, which contains the calibrated backscattered radiance values necessary for performing the calibrations, is presented. The calibration constants for September to October 1981 to determine total columnar ozone from the Spin-Scan ...
Bressette, Walter E.   +2 more
core   +1 more source

Design and Performance of the COOPS Sun Photometer

open access: yes, 2006
The scattering of light in the atmosphere by aerosols has significant implications to the measurement of ocean color by satellite. Determining the effects of this scattering by measuring aerosol optical thickness (ζa) and sky radiance requires a Sun Photometer.
openaire   +2 more sources

Infrared continuum observations of the solar atmosphere [PDF]

open access: yes
The far-infrared wavelengths (10 microns to 1 mm) were used to study the spatial and temporal structure of the solar atmosphere. Observational results were obtained on flares, faculae, sunspots, and on the center-to-limb intensity distribution, as well ...
Hudson, H., Levan, P., Lindsey, C.
core   +1 more source

Monitoring solar-type stars for luminosity variations [PDF]

open access: yes
Since 1984, researchers have made more than 1500 differential photometric b (471 nm) and y (551 nm) measurements of three dozen solar-like lower main sequence stars whose chromospheric activity was previosly studied by O. C. Wilson.
Lockwood, G. W., Skiff, B. A.
core   +1 more source

Experiments on Visual Acuity and the Visibility of Markings on the Ground in Long-duration Earth-Orbital Space Flight [PDF]

open access: yes
Visual acuity and visibility of markings on ground in long duration earth orbital space ...
Austin, R. W.   +3 more
core   +1 more source

Observations of the Interaction and Transport of Fine Mode Aerosols With Cloud and/or Fog in Northeast Asia From Aerosol Robotic Network and Satellite Remote Sensing [PDF]

open access: yes
Analysis of Sun photometer measured and satellite retrieved aerosol optical depth (AOD) datahas shown that major aerosol pollution events with very highfine mode AOD (>1.0 in midvisible) in theChina/Korea/Japan region are often observed to be associated ...
Arola, A.   +28 more
core   +1 more source

AMPS definition study on Optical Band Imager and Photometer System (OBIPS) [PDF]

open access: yes
A study was conducted to define the characteristics of a modular optical diagnostic system (OBIPS) for AMPS, to provide input to Phase B studies, and to give information useful for experiment planning and design of other instrumentation.
Davis, T. N.   +3 more
core   +1 more source

Retrieval of Aerosol Optical Depth Using Satellite Data Associated with Ground-based Observations over Urban and Rural Areas

open access: yesKartografija i Geoinformacije, 2019
Aerosol optical depth (AOD) can be retrieved accurately with sequential ground-based measurements of direct and diffuse solar radiance. However, spatial coverage and location frequency cause certain limitations.
Le Thi Le   +8 more
doaj  

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