Publication Date:
2024-02-09
Description:
Rapid and simple estimation of the mass eruption rate (MER) from column height is essential
for real-time volcanic hazard management and reconstruction of past explosive eruptions. Using 134 eruptive
events from the new Independent Volcanic Eruption Source Parameter Archive (IVESPA, v1.0), we explore
empirical MER-height relationships for four measures of column height: spreading level, sulfur dioxide
height, and top height from direct observations and as reconstructed from deposits. These relationships show
significant differences and highlight limitations of empirical models currently used in operational and research
applications. The roles of atmospheric stratification, wind, and humidity remain challenging to detect across
the wide range of eruptive conditions spanned in IVESPA, ultimately resulting in empirical relationships
outperforming analytical models that account for atmospheric conditions. This finding highlights challenges in
constraining the MER-height relation using heterogeneous observations and empirical models, which reinforces
the need for improved eruption source parameter data sets and physics-based models.
Description:
Published
Description:
e2022GL102633
Description:
OSV2: Complessità dei processi vulcanici: approcci multidisciplinari e multiparametrici
Description:
JCR Journal
Repository Name:
Istituto Nazionale di Geofisica e Vulcanologia (INGV)
Type:
article
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