# Detecting Surface Changes from an Underground Explosion in Granite Using Unmanned Aerial System Photogrammetry

> Research article (Pure and Applied Geophysics, 2017) · cited 17× · AI/ML

**Wikidata**: [openalex:W2746710528](https://www.wikidata.org/wiki/openalex:W2746710528)  
**Source**: https://4ort.xyz/entity/detecting-surface-changes-from-an-underground-explosion-in-granite-using-unmanned-aerial-system-photogrammetry