# CM5, a pre-Swarm comprehensive geomagnetic field model derived from over 12 yr of CHAMP, Ørsted, SAC-C and observatory data

> Research article (Geophysical Journal International, 2015) · cited 165× · AI/ML

**Wikidata**: [openalex:W2332542254](https://www.wikidata.org/wiki/openalex:W2332542254)  
**Source**: https://4ort.xyz/entity/cm5-a-pre-swarm-comprehensive-geomagnetic-field-model-derived-from-over-12-yr-of-champ-rsted-sac-c-and-observatory-data