Characterization of the recent ash emissions at Popocatepetl Volcano, Mexico

Pozzo, Ana Lillian Martin-Del; González-Morán, Tomas; Espinasa-Pereña, Ramón; Butrón, Marco Antonio López; Reyes, M.

doi:10.1016/j.jvolgeores.2007.09.004

Cited by 27 publications

(23 citation statements)

References 23 publications

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“…Using these methods, we were able to map self-consistently to low ash thicknesses, adopting as a minimum criterion [cf. Martin-Del Pozzo et al, 2008] an assigned thickness of <0.1 mm where ash was detectable only as a pale dusting on stiff leaves. Both local people's estimates of fresh ashfall thickness, and that estimated from coupled meteorological and dispersal models [Folch et al, 2008], correspond well with our data.…”

Section: Ash Samplingmentioning

confidence: 98%

Fallout and distribution of volcanic ash over Argentina following the May 2008 explosive eruption of Chaitén, Chile

et al. 2009

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[1] The major explosive eruption of Chaitén volcano, Chile, in May 2008 provided a rare opportunity to track the long-range dispersal and deposition of fine volcanic ash. The eruption followed $10,000 years of quiescence, was the largest explosive eruption globally since Hudson, Chile, in 1991, and was the first explosive rhyolitic eruption since Novarupta, Alaska, in 1912. Field examination of distal ashfall indicates that $1.6 Â 10 11 kg of ash (dense rock equivalent volume of $0.07 km 3 ) was deposited over $2 Â 10 5 km 2 of Argentina during the first week of eruption. The minimum eruption magnitude, estimated from the mass of the tephra deposit, is 4.2. Several discrete ashfall units are identifiable from their distribution and grain size characteristics, with more energetic phases showing a bimodal size distribution and evidence of cloud aggregation processes. Ash chemistry was uniform throughout the early stages of eruption and is consistent with magma storage prior to eruption at depths of 3-6 km. Deposition of ash over a continental region allowed the tracking of eruption development and demonstrates the potential complexity of tephra dispersal from a single eruption, which in this case comprised several phases over a week-long period of intense activity.

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Section: Ash Samplingmentioning

confidence: 98%

Fallout and distribution of volcanic ash over Argentina following the May 2008 explosive eruption of Chaitén, Chile

et al. 2009

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“…However, if an event should arise in the testing data set which is particularly different to what has been learned, then the prediction results would most likely present large errors. An example of such situation could be a volcanic explosion whose residues drift into the geographic area of interest (which has happened several times in recent decades [26][27] ). If such an irregular event happens, the predicted results should be considered to have little trustworthiness.…”

Section: First Generation: Results and Discussionmentioning

confidence: 99%

Polluants Time-Series Prediction Using the Gamma Classifier

López-Yáñez¹,

Argüelles-Cruz²,

Camacho-Nieto³

et al. 2011

IJCIS

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In this work we predict time series of air pollution data taken in Mexico City and the Valley of Mexico, by using the Gamma Classifier which is a novel intelligent associative mathematical model, coupled with an emergent coding technique. Historical and current data about the concentration of specific pollutants, in the form of time series, were used. The pollutants of interest are: carbon monoxide (CO), ozone (O 3), sulfur dioxide (SO 2), and nitrogen oxides (NO x , including both nitrogen monoxide, NO, and nitrogen dioxide, NO 2).

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“…During the study period of 1994 to 2008, ash plumes were detected using seismic analysis (Arciniega-Ceballos et al 1999;Novelo-Casanova and Valdés-González 2008), webcam data (cenapred.unam.mx/volcan/popocatepetl/video/ webcam_popocatepetl.html), and GOES satellite data (Harris et al 2000;Wright et al 2002), as well as reports from the local population (Martin Del Pozzo et al 2008). We supplement this by field measurements of ash thickness made by the authors and other collaborators to build isopach maps (Martin Del Pozzo et al 2008). In parallel, ash sampling was carried out also by the authors and other collaborators for further analysis.…”

Section: Methodsmentioning

confidence: 99%

“…Popocatépetl volcano began erupting on December 21, 1994, after more than 70 years of only fumarolic activity, with a series of phreatic explosions accompanied by an almost continuous emission of non-juvenile ash (Martin Del Pozzo et al 2008). The reawakening of the volcano motivated the evacuation of the towns on its northeastern flank, in a radius…”

Section: Volcanic Activity Of Popocatépetl 1994-2008mentioning

confidence: 99%

Ash emission from a long-lived eruption at Popocatépetl volcano and mapped respiratory effects

Nieto-Torres

Pozzo

2021

Bull Volcanol

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Popocatépetl volcano produced 625 ash emissions to heights greater than1 km between 1994 and 2008. During this time, ash fall affected mostly populations within a 60 km radius around the volcano, a zone which includes 4.5 million people. We assess the effects of prolonged ash fall on human health in these areas between 1994 and 2008. To do this, we considered 94,000 non-infectious respiratory disease (NIRD) records from five health databases. This included the 98 municipalities where ash fall was frequent, plus two municipalities outside of the ash fall area which served as a control group. NIRD rates (cases/1 k inhabitants) from 1992, 2 years before the beginning of the eruptive period, tol 2008 were compared with mapped ash distributions during the same period. Wind dispersed 29% of these ash emissions to the northeast, 20% to the east, 17% to the southwest, 13% to the northwest, 9% to the southeast, and12% in other directions, producing more ash fall in the northeast and east sectors and higher NIRD rates. Results, tested with an analysis of variance (ANOVA) and covariance statistical analyses, show that changes in NIRD rates correlate with ash dispersion direction and the amount of fine ash deposited. During eruptive crises in 1994-2003 and 2005, NIRD rates increased from < 1 to > 2.6, reaching levels up to > 3 in municipalities where ash was sampled. In 2004In and 2006 when ash plume frequency and ash concentration decreased (e.g., only two minor ash emissions in 2004), the NIRD rates remained unchanged. This was a result of the chronic effect on health of the preceding ash fall. We found that health impacts are principally related to the amount of ash, as well as the percentage of fine particles which in turn is also a function of the prolonged nature of the eruption. The fine ash from Popocatépetl is composed of up to 19.2% of particles smaller than 10 μm and up to 5.7% smaller than 2.5 μm and contains plagioclase crystals, lithic particles, glass, pyroxene crystals, cristobalite, and minor amounts of titanomagnetite and sublimates. Keywords Volcanic ash • Respiratory health • Health impact ResumenEl volcán Popocatépetl produjo 625 emisiones de cenizas de más de un 1 km entre 1994 y 2008. Durante este tiempo, la caída de cenizas afectó principalmente a las poblaciones dentro de un radio de 60 km alrededor del volcán, una zona que incluye a 4.5 millones de personas. En este artículo evaluamos los efectos de la caída prolongada de cenizas en la salud humana en estas áreas, en el periodo comprendido de 1994 al 2008. Para ello, consideramos 94,000 registros de enfermedades respiratorias no infecciosas (NIRD) de cinco bases de datos de salud. Esto incluyó los 98 municipios donde la caída de cenizas es frecuente, más dos municipios fuera del área de caída de cenizas que sirvieron como grupo de control. Se compararon las tasas de NIRD (casos/1k habitantes) con las distribuciones de cenizas mapeadas, desde 1992, dos años antes del inicio del período eruptivo, hasta 2008. El viento dispersó el 29% de estas emisio...

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Characterization of the recent ash emissions at Popocatepetl Volcano, Mexico

Cited by 27 publications

References 23 publications

Fallout and distribution of volcanic ash over Argentina following the May 2008 explosive eruption of Chaitén, Chile

Fallout and distribution of volcanic ash over Argentina following the May 2008 explosive eruption of Chaitén, Chile

Polluants Time-Series Prediction Using the Gamma Classifier

Ash emission from a long-lived eruption at Popocatépetl volcano and mapped respiratory effects

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