AVO-G2S: A modified, open-source Ground-to-Space atmospheric specification for infrasound modeling

Computers & Geosciences
By: , and 

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Abstract

To facilitate infrasound propagation studies, we present AVO-G2S, an open-source, Ground-to-Space model which provides temperature and wind specifications from the surface to an altitude of 225 km. This model provides a means of smoothly characterizing atmospheric conditions using multiple numerical weather prediction forecast and reanalysis products, along with upper-atmospheric empirical models. Regional atmospheric reconstructions only require a limited domain and can utilize high-resolution numerical weather prediction forecasts typically provided on a projected grid. The use of a projected grid allows for faster spectral transform libraries to be employed. The AVO-G2S software can also provide global reconstructions that rely on global numerical weather prediction products and spherical harmonic decompositions. AVO-G2S is inspired by a global Ground-to-Space model developed by the Naval Research Laboratory, and relies on their empirical descriptions of upper-atmospheric conditions. Alaska Volcano Observatory has implemented this model for near-real-time infrasound monitoring of volcanic eruptions and historical research projects.

Additional publication details

Publication type Article
Publication Subtype Journal Article
Title AVO-G2S: A modified, open-source Ground-to-Space atmospheric specification for infrasound modeling
Series title Computers & Geosciences
DOI 10.1016/j.cageo.2018.12.013
Volume 125
Year Published 2019
Language English
Publisher Elsevier
Contributing office(s) Volcano Science Center
Description 8 p.
First page 90
Last page 97