Results 11 to 20 of about 1,912 (186)

AERONET-OC LWN Uncertainties: Revisited

Journal of Atmospheric and Oceanic Technology, 2023
Abstract The Ocean Color Component of the Aerosol Robotic Network (AERONET-OC) aims at supporting the assessment of satellite ocean color radiometric products with in situ reference data derived from automated above-water measurements. This study, applying metrology principles and taking advantage of recent technology and science advances, revisits the
Ilaria Cazzaniga, Giuseppe Zibordi
openaire   +1 more source

Global atmospheric black carbon inferred from AERONET [PDF]

Proceedings of the National Academy of Sciences, 2003
AERONET, a network of well calibrated sunphotometers, provides data on aerosol optical depth and absorption optical depth at >250 sites around the world. The spectral range of AERONET allows discrimination between constituents that absorb most strongly in the UV region, such as soil dust and organic carbon, and the more ubiquitously
Makiko, Sato, James, Hansen, Dorothy, Koch, Andrew, Lacis, Reto, Ruedy, Oleg, Dubovik, Brent, Holben, Mian, Chin, Tica, Novakov   +8 more
openaire   +2 more sources

PLANETARY-SCALE RESPONSE OF AEROSOLS TO THE TONGA VOLCANO ERUPTION [PDF]

Radio Physics and Radio Astronomy
Subject and Purpose. The work is aimed at analyzing changes in the concentration of atmospheric aerosols that were observed not only in the regions within a close vicinity of the eruption (particularly, in Australia), but in polar regions of the Earth as
A. V. Soina, Yu. M. Yampolsky
doaj   +1 more source

Aerosol models from the AERONET database: application to surface reflectance validation [PDF]

Atmospheric Measurement Techniques, 2022
Abstract. Aerosols play a critical role in radiative transfer within the atmosphere, and they have a significant impact on climate change. In this paper, we propose and implement a framework for developing an aerosol model using their microphysical properties. Such microphysical properties as the size distribution, the complex refractive index, and the
J.-C. Roger, J.-C. Roger, E. Vermote, S. Skakun, S. Skakun, E. Murphy, E. Murphy, O. Dubovik, N. Kalecinski, N. Kalecinski, B. Korgo, B. Holben   +11 more
openaire   +5 more sources

Preliminary comparison of the direct aerosol radiative forcing over Ukraine and Antarctic AERONET sites

Український антарктичний журнал, 2019
Objectives. To analyze data on aerosol optical thickness (AOT) in the atmosphere over some Ukraine and Antarctic AERONET (AErosol RObotic NETwork) sites.
G. Milinevsky, Yu. Yukhymchuk, A. Grytsai, V. Danylevsky, Yu. Wang, V. Choliy   +5 more
doaj   +1 more source

AERONET-OC: an overview

Canadian Journal of Remote Sensing, 2010
The ocean color component of the Aerosol Robotic Network (AERONET-OC) was established to support satellite ocean color validation activities in coastal waters through standardized measurements of atmospheric and marine optical quantities. Specifically, AERONET-OC can provide in situ spectral values of the normalized water-leaving radiance, LWN, and ...
G. Zibordi, B. Holben, F. Mélin, D. D'Alimonte, J.-F. Berthon, I. Slutsker, D. Giles   +6 more
openaire   +1 more source

Column water vapour: an intertechnique comparison of estimation methods in Estonia; pp. 37–47 [PDF]

Proceedings of the Estonian Academy of Sciences, 2014
Despite different techniques for the estimation of column integrated water vapour (precipitable water, PW) no method has yet been identified as the most accurate or the reference one.
Hannes Keernik, Hanno Ohvril, Erko Jakobson, Kalev Rannat, Andres Luhamaa   +4 more
doaj   +1 more source

Spectral aerosol optical depth prediction by some broadband models. Validation with AERONET observations; pp. 404–416 [PDF]

Proceedings of the Estonian Academy of Sciences, 2014
A comprehensive investigation on the performance of aerosol optical depth at 500 nm (AOD500) predictions using broadband physical and statistical models is detailed here. Seven simple models and one more complicated model were selected.
Martin Kannel, Hanno Ohvril, Oleg Okulov, Kaidi Kattai, Lennart Neiman   +4 more
doaj   +1 more source

Analysis of aerosol optical properties and implications to radiative forcing over the Mediterranean Basin [PDF]

E3S Web of Conferences
The Mediterranean atmosphere is impacted by a mixture of natural and anthropogenic aerosols, which generate complex and regionally variable impacts on climate and air quality.
Marsli Ibtissam, Makaoui Abdelilah, Moussaoui Mohammed Amine, Mezrhab Ahmed, Diouri Mohammed   +4 more
doaj   +1 more source

ON MODERN APPROACH TO AIRPLANE-TYPE UNMANNED AERIAL VEHICLES DESIGN WITH SHORT TAKEOFF AND LANDING PART III. NUMERICAL MODELING OF AIRCRAFT VORTEX AERODYNAMICS BY DISCRETE VORTEX METHOD [PDF]

Научно-технический вестник информационных технологий, механики и оптики, 2018
This publication continues a series of review papers devoted to the urgent problems of designing unmanned aircrafts of the next generation, which are expected to appear in the period from 2025 to 2035.
P. V. Bulat, O. P. Minin
doaj   +1 more source