TY  - RPRT
TI  - Geomagnetic Secular Variation Forecast using the NASA GEMS Ensemble Kalman filter: A Candidate SV Model for IGRF‑13
AU  - Andrew Tangborn
AU  - Weijia Kuang
AU  - Terence J Sabaka
AU  - Ce Yi
PY  - 2021
UR  - https://ntrs.nasa.gov/citations/20210010688
ID  - 20210010688
ER  -