GeoBrief

GeoBrief is a mobile + web app (traditional + AI) that helps GA and small commercial pilots anticipate GPS reliability problems—jamming, spoofing, outages, and RAIM/availability gaps—before and during flight. It aggregates public advisories (NOTAMs, GPS interference test notices), crowd-sourced pilot reports, and device-side GNSS health signals to generate a simple “GPS Risk Brief” for your route, altitude band, and time window. In flight, it runs a lightweight monitor that flags suspicious GNSS behavior (sudden position jumps, inconsistent satellite geometry, abnormal time drift) and suggests practical mitigations: switch to VOR/DME, cross-check with inertial/ADS-B track, or request radar vectors. The AI component summarizes messy advisories into plain-language, route-specific guidance and highlights what actually matters. This is not a certified navigation source; it’s a situational-awareness layer designed to reduce surprises.