194 citations · 1.1k across the 43 of their papers we have counts for
5 papers · 1 filter
A homogeneous aa index: 2. hemispheric asymmetries and the equinoctial variation
Mike Lockwood, Ivan D. Finch, Aude Chambodut +3
Paper 1 [Lockwood et al., 2018] generated annual means of a new version of the geomagnetic activity index which includes corrections for secular drift in the geographic coordi…
A homogeneous aa index: 1. Secular variation
Mike Lockwood, Aude Chambodut, Luke A. Barnard +3
Originally complied for 1868-1967 and subsequently continued so that it now covers 150 years, the index has become a vital resource for studying space climate change. However,…
A variational approach to Data Assimilation in the Solar Wind
Matthew Lang, Mathew Owens
Variational Data Assimilation (DA) has enabled huge improvements in the skill of operational weather forecasting. In this study, we use a simple solar-wind propagation model to dev…
The State of the Solar Wind, Magnetosphere, and Ionosphere During the Maunder Minimum
Pete Riley, Roberto Lionello, Jon A. Linker +1
Both direct observations and reconstructions from various datasets, suggest that conditions were radically different during the Maunder Minimum (MM) than during the space era. Usin…
Space climate and space weather over the past 400 years: 2. Proxy indicators of geomagnetic storm and substorm
Mike Lockwood, Mathew J. Owens, Luke A. Barnard +3
Using the reconstruction of power input to the magnetosphere given in Paper 1 (arXiv:1708.04904), we reconstruct annual means of geomagnetic indices over the past 400 years to with…