scispace - formally typeset
Open AccessJournal ArticleDOI

Aerosol Optical Properties of Pacaya Volcano Plume Measured with a Portable Sun-Photometer

Reads0
Chats0
TLDR
In this paper, Sun-photometer multichannel measurements of aerosol optical depths (AODs) in the visible and near-infrared spectral ranges, and Angstrom parameters of the plume issued from the Pacaya volcano, Guatemala, are presented for the first time.
Abstract
In this paper, Sun-photometer multichannel measurements of aerosol optical depths (AODs) in the visible and near-infrared spectral ranges, and Angstrom parameters of the plume issued from the Pacaya volcano, Guatemala, are presented for the first time These observations, made during a short-term campaign carried out on 29 and 30 January 2011, indicate a diluted (AODs lower than 01) volcanic plume composed of small particles (Angstrom exponent ∼10 on 29 January and ∼14 on 30 January) Results are consistent with an ash-free plume Finally, the impact of the choice of different wavelength pairs for the calculation of the Angstrom parameters from the spectral AOD observations is tested and critically discussed

read more

Content maybe subject to copyright    Report

Citations
More filters
Journal ArticleDOI

Climatology of Aerosols over the Caribbean Islands: Aerosol Types, Synoptic Patterns, and Transport

TL;DR: In this paper , a climatological study of aerosols in four representative Caribbean Sea islands is presented, based on daily mean values of aerosol optical properties for the period 2008-16, using the aerosolic optical depth (AOD) and Ångström exponent (AE) to classify the dominant aerosol type.
Journal ArticleDOI

Retrieval of particle size distribution based on a multi-objective genetic algorithm for multi-wavelength lidar

TL;DR: In this paper , a non-dominated sorting genetic algorithm (NSGA-II) was used to retrieve aerosol particle size distribution (PSD) by using multi-wavelength lidar data.
Journal ArticleDOI

Volcanic Plumes: Impacts on the Atmosphere and Insights into Volcanic Processes

TL;DR: In this article, the authors introduce a special issue of Geosciences focused on the scientific research field of VOLCANIC Plumes: Impacts on the atmosphere and insights into volcanic processes.
References
More filters
Journal ArticleDOI

Atmospheric effects of the Mt Pinatubo eruption

TL;DR: The eruption of Mt Pinatubo in June 1991 caused the largest perturbation this century to the participate content of the stratosphere, which put an end to several years of globally warm surface temperatures as discussed by the authors.
Journal ArticleDOI

The parameters of atmospheric turbidity

Anders Ångström
- 01 Feb 1964 - 
TL;DR: In this paper, a method first suggested by M. Herovanu (1959) is used for deriving the named turbidity parameters in adherence to a procedure described by the present author in a previous paper in this journal.
Journal ArticleDOI

Spectral discrimination of coarse and fine mode optical depth

TL;DR: In this article, the spectral inversion technique was used to analyze the spectral shape of the total aerosol optical depth (ta = tf + tc) and showed that the spectral coherence of the simple model employed, demonstrating that tc variation is coherent with photographic evidence of thin cloud events.
Journal ArticleDOI

Design, calibration, and performance of MICROTOPS II handheld ozone monitor and Sun photometer

TL;DR: The MICROTOPS II as discussed by the authors is a five-channel handheld Sun photometer that can be configured to measure total ozone, total water vapor, or aerosol optical thickness at various wavelengths.
Journal ArticleDOI

The effects of volcanic eruptions on atmospheric chemistry

TL;DR: In this paper, the main effects of volcanic emissions on atmospheric chemistry are discussed, with a focus on sulphur and halogen compounds, and to a smaller extent on climate, mainly focusing on quiescent degassing, but the main effect of explosive eruptions on the troposphere and stratosphere are covered as well.
Related Papers (5)