The EtnaPlumeLab (EPL) research cluster: advance the understanding of Mt. Etna plume, from source characterisation to downwind impact

Sellitto, Pasquale; Salerno, Giuseppe; Briole, Pierre

doi:10.4401/ag-7106

Cited by 3 publications

(2 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The EU‐funded project EPL‐RADIO (Etna Plume Lab‐Radioactive Aerosols and other source parameters for better atmospheric Dispersion and Impact estimatiOns) aims to advance the understanding of Mount Etna as an atmospheric aerosols source, targeting emission processes, from inner degassing mechanisms to aerosol near‐source characterization. A detailed size‐resolved physicochemical characterization of the emitted aerosols is targeted, using a multidisciplinary approach, with the ultimate goal of constraining the regional climatic impacts of Mount Etna in the Mediterranean area [ Sellitto , ; Sellitto et al , ].…”

Section: The Epl‐radio Campaign C2mentioning

confidence: 99%

A novel methodology to determine volcanic aerosols optical properties in the UV and NIR and Ångström parameters using Sun photometry

et al. 2017

View full text Add to dashboard Cite

Remote volcanic aerosol optical depth (AOD) observations of Mount Etna summit and distal bulk plume have been carried out between 14 and 20 July 2016 in the framework of the EPL‐RADIO project. Ultraviolet (UV) and near‐infrared (NIR) AODs were measured using a Microtops‐II Ozone Monitor (MIIOM) Sun photometer, using a Langley plot (LP) instrumental calibration routine. Ozone‐corrected UV AODs at 320 nm are derived for the first time with a Microtops, thus extending the exploitable spectral band range of portable photometers to shorter wavelengths. The new UV AODs have theoretical uncertainties <±0.035 (±12%), dominated by LP calibration errors. Using UV and NIR AODs, the Ångström coefficients have been derived. The UV AODs and Ångström exponents have been compared, at background conditions, to colocated Cimel Sun photometer observations. A root‐mean‐square deviation of 0.03 (13%) for the UV AOD is found for this comparison, thus in agreement with estimated theoretical uncertainties. The MIIOM Ångström exponent estimations are found consistent with Cimel observations, even if with an average overestimation of 17.5%, mainly due to negative biases (−0.02/−21%) of NIR AODs. Results of quasi‐simultaneous characterization of proximal and distal plume (7 km from craters), for 20 July 2016, are shown. During the measurements, brownish ash puffs were visible. While proximal and distal plumes were observed within approximately 1 h, their Ångström exponent varied significantly (mean values: −0.30±0.22 and 1.16±0.33, for the proximal and distal plumes). These results indicate quick sedimentation of ash particles and show the potential of this new retrieval technique to characterize volcanic aerosols.

show abstract

Section: The Epl‐radio Campaign C2mentioning

confidence: 99%

A novel methodology to determine volcanic aerosols optical properties in the UV and NIR and Ångström parameters using Sun photometry

et al. 2017

View full text Add to dashboard Cite

show abstract

“…The EC (European Commission)-funded EPL-RADIO project (Etna Plume Lab-Radioactive Aerosols and other source parameters for better atmospheric Dispersion and Impact estimatiOns) is dedicated to the source/near-source characterisation of Etna in terms of atmospheric aerosols. The project targets emission processes, from inner degassing mechanisms to aerosol near-source characterization 17 . The estimation of small-scale impacts is also a scope of EPL-RADIO.…”

Section: Introductionmentioning

confidence: 99%

Small-scale volcanic aerosols variability, processes and direct radiative impact at Mount Etna during the EPL-RADIO campaigns

Sellitto

Salerno

Spina

et al. 2020

Sci Rep

Self Cite

View full text Add to dashboard Cite

The aerosol properties of Mount Etna’s passive degassing plume and its short-term processes and radiative impact were studied in detail during the EPL-RADIO campaigns (summer 2016–2017), using a synergistic combination of observations and radiative transfer modelling. Summit observations show extremely high particulate matter concentrations. Using portable photometers, the first mapping of small-scale (within $$\sim 20\,\hbox {km}$$ ∼ 20 km from the degassing craters) spatial variability of the average size and coarse-to-fine burden proportion of volcanic aerosols is obtained. A substantial variability of the plume properties is found at these spatial scales, revealing that processes (e.g. new particle formation and/or coarse aerosols sedimentation) are at play, which are not represented with current regional scale modelling and satellite observations. Statistically significant progressively smaller particles and decreasing coarse-to-fine particles burden proportion are found along plume dispersion. Vertical structures of typical passive degassing plumes are also obtained using observations from a fixed LiDAR station constrained with quasi-simultaneous photometric observations. These observations are used as input to radiative transfer calculations, to obtain the shortwave top of the atmosphere (TOA) and surface radiative effect of the plume. For a plume with an ultraviolet aerosol optical depth of 0.12–0.14, daily average radiative forcings of $$-\;4.5$$ - 4.5 and $$-\;7.0\,\hbox {W/m}^2$$ - 7.0 W/m 2 , at TOA and surface, are found at a fixed location $$\sim 7\,\hbox {km}$$ ∼ 7 km downwind the degassing craters. This is the first available estimation in the literature of the local radiative impact of a passive degassing volcanic plume.

show abstract

Radiative impact of Etna volcanic aerosols over south eastern Italy on 3 December 2015

Romano

Burlizzi

Kinne

et al. 2018

Atmospheric Environment

View full text Add to dashboard Cite

The EtnaPlumeLab (EPL) research cluster: advance the understanding of Mt. Etna plume, from source characterisation to downwind impact

Cited by 3 publications

References 6 publications

A novel methodology to determine volcanic aerosols optical properties in the UV and NIR and Ångström parameters using Sun photometry

A novel methodology to determine volcanic aerosols optical properties in the UV and NIR and Ångström parameters using Sun photometry

Small-scale volcanic aerosols variability, processes and direct radiative impact at Mount Etna during the EPL-RADIO campaigns

Radiative impact of Etna volcanic aerosols over south eastern Italy on 3 December 2015

Contact Info

Product

Resources

About