Results 21 to 30 of about 4,017 (177)

Quantitative Aerosol Optical Depth Detection during Dust Outbreaks from Meteosat Imagery Using an Artificial Neural Network Model

open access: yesRemote Sensing, 2019
This study presents the development of an artificial neural network (ANN) model to quantitatively estimate the atmospheric aerosol load (in terms of aerosol optical depth, AOD), with an emphasis on dust, over the Mediterranean basin using images from ...
Stavros Kolios, Nikos Hatzianastassiou
doaj   +1 more source

Spectral Derivatives of Optical Depth for Partitioning Aerosol Type and Loading

open access: yesRemote Sensing, 2021
Quantifying aerosol compositions (e.g., type, loading) from remotely sensed measurements by spaceborne, suborbital and ground-based platforms is a challenging task.
Tang-Huang Lin   +4 more
doaj   +1 more source

A low-cost monitor for simultaneous measurement of fine particulate matter and aerosol optical depth – Part 1: Specifications and testing [PDF]

open access: yesAtmospheric Measurement Techniques, 2019
Globally, fine particulate matter (PM2.5) air pollution is a leading contributor to death, disease, and environmental degradation. Satellite-based measurements of aerosol optical depth (AOD) are used to estimate PM2.5 concentrations across the world, but
E. A. Wendt   +10 more
doaj   +1 more source

Karakteristik Aerosol Optical Depth (AOD) di Cagar Biosfer Lore Lindu Berdasarkan Data Aeronet Karakteristik Aerosol Optical Depth (AOD) di Cagar Biosfer Lore Lindu Berdasarkan Data Aeronet

open access: yesBuletin GAW Bariri, 2023
Keberadaan aerosol di udara menjadi salah satu indikator kualitas udara. Pengamatan aerosol telah dilakukan di daerah Cagar Biosfer Lore Lindudengan menggunakan peralatan Sunphotometer yang menghasilkan nilai AOD pada beberapa panjang gelombang. Penelitian ini menggunakan data AOD pada panjang gelombang 500 nm Aronet Version 3 Level 2.0.
Henri Panggabean   +3 more
openaire   +1 more source

Impact of assimilating NOAA VIIRS aerosol optical depth (AOD) observations on global AOD analysis from the Copernicus Atmosphere Monitoring Service (CAMS)

open access: yesAtmospheric Chemistry and Physics, 2023
Abstract. Global monitoring of aerosols is required to analyse the impacts of aerosols on air quality and to understand their role in modulating the climate variability. The Copernicus Atmosphere Monitoring Service (CAMS) provides near-real-time forecasts and reanalyses of aerosols using the ECMWF Integrated Forecasting System (IFS), constrained by the
Sebastien Garrigues   +11 more
openaire   +4 more sources

Relative humidity and its effect on aerosol optical depth in the vicinity of convective clouds

open access: yesEnvironmental Research Letters, 2013
The hygroscopic growth of aerosols is controlled by the relative humidity (RH) and changes the aerosols’ physical and hence optical properties. Observational studies of aerosol–cloud interactions evaluate the aerosol concentration using optical ...
O Altaratz   +3 more
doaj   +1 more source

Sources of discrepancy between aerosol optical depth obtained from AERONET and in-situ aircraft profiles [PDF]

open access: yesAtmospheric Chemistry and Physics, 2012
Aerosol optical properties were measured by NOAA's Airborne Aerosol Observatory over Bondville, Illinois, during more than two years using a light aircraft.
A. R. Esteve   +5 more
doaj   +1 more source

Quantitative evaluation of mixed biomass burning and anthropogenic aerosols over the Indochina Peninsula using MERRA-2 reanalysis products validated by sky radiometer and MAX-DOAS observations

open access: yesProgress in Earth and Planetary Science, 2022
In this study, we conducted the quantitative evaluation of aerosol optical properties in the Indochina Peninsula (ICP), which is significantly affected yearly by both biomass burning (BB) and anthropogenic aerosols, using Modern-Era Retrospective ...
Takeru Ohno   +3 more
doaj   +1 more source

Multi-sensor comparison of aerosol optical properties profiles observed during a pollution episode in a mega city of the North China Plain [PDF]

open access: yesE3S Web of Conferences, 2020
A fine aerosol particle pollution episode happened in mega city Beijing during February 25th – March 5th. Aerosol extinction coefficient profiles were observed at 7 L idar s ta ti ons.
Gao Lina   +6 more
doaj   +1 more source

Spatiotemporal Distribution of Major Aerosol Types over China Based on MODIS Products between 2008 and 2017

open access: yesAtmosphere, 2020
Knowledge of aerosol-type distribution is critical to the evaluation of aerosol–climate effects. However, research on aerosol-type distribution covering all is limited.
Qi-Xiang Chen   +4 more
doaj   +1 more source

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