Appendix

Alert Level Reference

Data Sources

• GDACS (Global Disaster Alert and Coordination System) — All disaster types with alert levels
• USGS (United States Geological Survey) — Earthquake-specific data with precise measurements
• NHC (National Hurricane Center) — Tropical cyclone advisories and forecast tracks
• Google Flood Forecasting API — River gauge and flash flood predictions
• CAP Webhook — Common Alerting Protocol ingestion from third-party sources

Glossary

• Alert Group — A configured group of contacts and teams that receives notifications when certain alert conditions are met.
• Alert Matrix — The configuration grid mapping event types and alert levels to alert groups.
• CAP — Common Alerting Protocol. A standard format for emergency alerts.
• GDACS — Global Disaster Alert and Coordination System. The primary data source for TerraGuard.
• GeoPop — TerraGuard's population exposure service providing reverse geocoding and affected population estimates.
• Knowledge Base — The indexed collection of web-crawled articles, SITREPs, and advisories for a given event.
• RAG — Retrieval-Augmented Generation. A technique where AI answers are grounded in retrieved documents rather than model memory alone.
• ReAct — Reasoning + Acting. The AI agent pattern used for report generation.
• Region Template — A named geographic scope (set of countries) that can be attached to Alert Matrix cells.
• SITREP — Situation Report. An official document summarising the current status of a disaster event.

Support and Feedback

For technical support or to report a bug, contact your system administrator or reach out to the TerraGuard AI support team via the platform's support portal.