TY  - JOUR
A1  - Matzka, Jürgen
A1  - Stolle, Claudia
A1  - Yamazaki, Yosuke
A1  - Bronkalla, Oliver
A1  - Morschhauser, Achim
T1  - The geomagnetic Kp index and derived indices of geomagnetic activity
JF  - Space weather : the international journal of research and applications
N2  - The geomagnetic Kp index is one of the most extensively used indices of geomagnetic activity, both for scientific and operational purposes. This article reviews the properties of the Kp index and provides a reference for users of the Kp index and associated data products as derived and distributed by the GFZ German Research Centre for Geosciences. The near real-time production of the nowcast Kp index is of particular interest for space weather services and here we describe and evaluate its current setup.
Y1  - 2021
U6  - https://doi.org/10.1029/2020SW002641
SN  - 1542-7390
VL  - 19
IS  - 5
PB  - Wiley
CY  - New York
ER  -