Results 21 to 30 of about 137,118 (287)

Aerosol optical depths in a semiarid region [PDF]

Journal of Geophysical Research: Atmospheres, 1997
To monitor changes in surface conditions from space requires information on the state of the atmosphere to correct for atmospheric effects in the remotely sensed signal. The least observed and most variable atmospheric parameters are aerosols. Of particular interest are changes of surface conditions in areas where desert encroachment is of concern.
R. T. Pinker, R. A. Ferrare, A. Karnieli, T. O. Aro, Y. J. Kaufman, A. Zangvil   +5 more
openaire   +1 more source

Aerosol optical depth regime over megacities of the world

Atmospheric Chemistry and Physics, 2022
Abstract. Currently, 55 % of the world's population resides in urban areas and this number is projected to increase to 70 % by 2050. Urban agglomerations with a population over 10 million, characterized as megacities, are expected to be more than 100 by 2100. Such large concentrations of population could boost creativity and economic progress, but also
K. Papachristopoulou, K. Papachristopoulou, K. Papachristopoulou, K. Papachristopoulou, I.-P. Raptis, A. Gkikas, I. Fountoulakis, A. Masoom, S. Kazadzis   +8 more
openaire   +5 more sources

Annual distributions and sources of Arctic aerosol components, aerosol optical depth, and aerosol absorption [PDF]

Journal of Geophysical Research: Atmospheres, 2014
AbstractRadiative forcing by aerosols and tropospheric ozone could play a significant role in recent Arctic warming. These species are in general poorly accounted for in climate models. We use the GEOS‐Chem global chemical transport model to construct a 3‐D representation of Arctic aerosols and ozone that is consistent with observations and can be used
Breider, Thomas, Mickley, Loretta, Jacob, Daniel, Wang, Qiaoqiao, Fisher, Jenny A., Chang, Rachel. Y.-W., Alexander, Becky   +6 more
openaire   +3 more sources

A Decade of Poland-AOD Aerosol Research Network Observations

Atmosphere, 2021
The Poland-AOD aerosol research network was established in 2011 to improve aerosol–climate interaction knowledge and provide a real-time and historical, comprehensive, and quantitative database for the aerosol optical properties distribution over Poland.
Krzysztof M. Markowicz, Iwona S. Stachlewska, Olga Zawadzka-Manko, Dongxiang Wang, Wojciech Kumala, Michal T. Chilinski, Przemyslaw Makuch, Piotr Markuszewski, Anna K. Rozwadowska, Tomasz Petelski, Tymon Zielinski, Michal Posyniak, Jacek W. Kaminski, Artur Szkop, Aleksander Pietruczuk, Bogdan H. Chojnicki, Kamila M. Harenda, Patryk Poczta, Joanna Uscka-Kowalkowska, Joanna Struzewska, Malgorzata Werner, Maciej Kryza, Anetta Drzeniecka-Osiadacz, Tymoteusz Sawinski, Arkadiusz Remut, Miroslaw Mietus, Krzysztof Wiejak, Jacek Markowicz, Livio Belegante, Doina Nicolae   +29 more
doaj   +1 more source

Estimating aerosol emissions by assimilating observed aerosol optical depth in a global aerosol model [PDF]

Atmospheric Chemistry and Physics, 2012
Abstract. This study estimates the emission fluxes of a range of aerosol species and aerosol precursor at the global scale. These fluxes are estimated by assimilating daily total and fine mode aerosol optical depth (AOD) at 550 nm from the Moderate Resolution Imaging Spectroradiometer (MODIS) into a global aerosol model of intermediate complexity ...
Huneeus, N., Chevallier, F., Boucher, Olivier   +2 more
openaire   +4 more sources

Improved Clear Sky Model from In Situ Observations and Spatial Distribution of Aerosol Optical Depth for Satellite-Derived Solar Irradiance over the Korean Peninsula

Remote Sensing, 2022
In solar resource assessment, the climatological environment of the target area is objectively quantified by the cloudiness or clear sky index, which is defined as the ratio of global horizontal irradiance to clear sky solar insolation.
Chang Ki Kim, Hyun-Goo Kim, Yong-Heack Kang   +2 more
doaj   +1 more source

Stratospheric Smoke Properties Based on Lidar Observations in Autumn 2017 Over Warsaw [PDF]

EPJ Web of Conferences, 2020
Smoke layers in the stratosphere were observed during autumn 2017 using PollyXT-UW Raman lidar at the European Aerosol Research Lidar Network in the frame of the Aerosol Cloud and Trace Gases Research Infrastructure, i.e.
Wang Dongxiang, Stachlewska Iwona S.
doaj   +1 more source

Advancements in the Aerosol Robotic Network (AERONET) Version 3 database – automated near-real-time quality control algorithm with improved cloud screening for Sun photometer aerosol optical depth (AOD) measurements

Atmospheric Measurement Techniques, 2019
. The Aerosol Robotic Network (AERONET) has provided highly accurate, ground-truth measurements of the aerosol optical depth (AOD) using Cimel Electronique Sun–sky radiometers for more than 25 years.
D. Giles, A. Sinyuk, M. Sorokin, J. Schafer, A. Smirnov, I. Slutsker, T. Eck, B. Holben, J. Lewis, J. Campbell, E. Welton, S. Korkin, A. Lyapustin   +12 more
semanticscholar   +1 more source

Aerosol optical depth in the European Brewer Network [PDF]

Atmospheric Chemistry and Physics, 2017
Abstract. The high spatial and temporal variability of aerosols make networks capable of measuring their properties in near real time of high scientific interest. In this work we present and discuss results of an aerosol optical depth algorithm to be used in the European Brewer Network, which provides data in near real time of more than 30 ...
Javier López-Solano, Alberto Redondas, Thomas Carlund, Juan J. Rodriguez-Franco, Henri Diémoz, Sergio F. León-Luis, Bentorey Hernández-Cruz, Carmen Guirado-Fuentes, Natalia Kouremeti, Julian Gröbner, Stelios Kazadzis, Virgilio Carreño, Alberto Berjón, Daniel Santana-Díaz, Manuel Rodríguez-Valido, Veerle De Bock, Juan R. Moreta, John Rimmer, Lamine Boulkelia, Nis Jepsen, Paul Eriksen, Alkisviadis F. Bais, Vadim Shirotov, José M. Vilaplana, Keith M. Wilson, Tomi Karppinen   +25 more
openaire   +8 more sources

Estimate of surface direct radiative forcing of desert dust from atmospheric modulation of the aerosol optical depth [PDF]

Atmospheric Chemistry and Physics, 2013
Measurements carried out on the island of Lampedusa, in the central Mediterranean, on 7 September 2005, show the occurrence of a quasi-periodic oscillation of aerosol optical depth, column water vapour, and surface irradiance in different spectral bands.
A. di Sarra, D. Fuà, D. Meloni
doaj   +1 more source