Assertion: magnetic field | /r/HasProperty | published on the k-index
Facets:
Source sentences:
text: A grid of magnetometers around the world constantly measures the effect of the solar wind on the Earth's magnetic field, which is then published on the K-index.
text: A grid of magnetometers around the world constantly measures the effect of the solar wind on the Earth's magnetic field, which is then published on the K-index.