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.
Citation Information
Publication Year | 2019 |
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Title | AVO-G2S: A modified, open-source Ground-to-Space atmospheric specification for infrasound modeling |
DOI | 10.1016/j.cageo.2018.12.013 |
Authors | Hans Schwaiger, Alexandra M. Iezzi, David Fee |
Publication Type | Article |
Publication Subtype | Journal Article |
Series Title | Computers & Geosciences |
Index ID | 70203136 |
Record Source | USGS Publications Warehouse |
USGS Organization | Volcano Science Center |