@article{fdi:010092190,
  title = {{S}easonal snow cycles and their possible influence on seismic velocity changes and eruptive activity at {R}uapehu {V}olcano, {N}ew {Z}ealand},
  author = {{Y}ates, {A}. {S}. and {C}audron, {C}. and {M}ordret, {A}. and {L}esage, {P}. and {P}inel, {V}irginie and {L}ecocq, {T}. and {M}iller, {C}. {A}. and {L}amb, {O}. {D}. and {F}ournier, {N}.},
  editor = {},
  language = {{ENG}},
  abstract = {{U}nderstanding volcanic eruption triggers is critical toward anticipating future activity. {W}hile internal magma dynamics typically receive more attention, the influence of external processes remains less understood. {I}n this context, we explore the relationship between seasonal snow cycles and eruptive activity at {R}uapehu, {N}ew {Z}ealand. {T}his is motivated by apparent seasonality in the eruptive record, where a higher than expected proportion of eruptions (post-1960) occur in spring (including the two previous eruptions of 2006 and 2007). {E}mploying recent advancements in passive seismic interferometry, we compute sub-surface seismic velocity changes between 2005 and 2009 using the cross-wavelet transform approach. {S}tations on the volcano record a higher velocity in winter, closely correlated with the presence of snow. {I}nverting for depth suggests these changes occur within the upper 300 m. {N}otably, we observe that the timing of the previous two eruptions coincides with a period associated with an earlier velocity decrease at approximately 200-300 m depth relative to the surface. {R}educed water infiltration (as precipitation falls as snow) is considered a likely control of seasonal velocities, while modeling also points to a contribution from snow-loading. {W}e hypothesize that this latter process may play a role toward explaining seasonality in the eruptive record. {O}ur findings shed light on the complex interactions between volcanoes and external environmental processes, highlighting the need for more focused research in this area. {P}ursuing this line of inquiry has significant implications toward improved risk and hazard assessments at not just {R}uapehu, but also other volcanoes globally that experience seasonal snow cover.},
  keywords = {{NOUVELLE} {ZELANDE} ; {RUAPEHU} {VOLCAN}},
  booktitle = {},
  journal = {{J}ournal of {G}eophysical {R}esearch : {S}olid {E}arth},
  volume = {129},
  numero = {12},
  pages = {e2024{JB}029568 [28 p.]},
  ISSN = {2169-9313},
  year = {2024},
  DOI = {10.1029/2024jb029568},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092190},
}