Table 1. Data used to construct POMME5-post05 according to location. Mid latitudes refer to track segments covering −60° to 60° geomagnetic latitude (Mlat) and high latitudes refer to overlapping tracks at < −50° and > 50° (Mlat).
From: On the possibility of extending the IGRF predictive secular variation model to a higher SH degree
n. data used | |
|---|---|
Scalar data (mid latitude) | 358345 |
Scalar data (north polar) | 239928 |
Scalar data (south polar) | 235503 |
Vector data (mid latitude) | 252879 |