Category: Uncategorized

We are pleased to present a detailed database of SO2 emission rates, plume locations, and meteorological conditions, derived from measurements conducted during the period 2005-2016 at 32 volcanoes in NOVAC. The database is hosted at https://novac.chalmers.se/.

Data presented in this database indicates the magnitude and natural variability of degassing observed at a daily temporal scale.

These data are freely accessible but we expect that proper credit is given to volcano observatories in case of scientific use, as indicated in our Data Use Agreement https://novac.chalmers.se/datauseagreement.

An article describing and analyzing these data was published by the collaboration: Arellano et al. (2021), https://essd.copernicus.org/articles/13/1167/2021/essd-13-1167-2021.html

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• Option to read and analyze spectra files from a directory (#137)
• Improved method to determine whether spectrum is dark (#146)
• Fix traverse display in postflux dialog when passing midnight UTC (#148)
• Add GPS status, course, and speed to STD files (#151)
• Fix rounding issue in integration time adjustments (#155)

To better assist the NOVAC community in times when in-person instruction is not possible, we are launching a video library containing short videos that discuss common issues related to the NOVAC instrumentation and software. The video library can be accessed by clicking the Tutorials tab on the NOVAC website, or by navigating directly to https://novac-community.org/tutorials. We hope to add more content to this library as we are able. If you have any questions about the existing content or would like to request a video on a specific topic that you are interested in, please send an email to one of the NOVAC working-group coordinators or the steering committee.

We welcome GNS Science from New Zealand to NOVAC. Through a project lead by Jonathan Hanson and Agnes Mazot, several NOVAC instruments will be installed in New Zealand volcanoes in the near future. Training and tests were done in March, with participation of several technical experts from GNS Science, and support from Cindy Werner (USGS-VDAP/US) and Santiago Arellano.