324 citations · 4.8k across the 78 of their papers we have counts for
78 papers
The Sun's magnetic (Hale) cycle and 27 day recurrences in the geomagnetic index
S. C. Chapman, S. W. McIntosh, R. J. Leamon +1
We construct a new solar cycle phase clock which maps each of the last 18 solar cycles onto a single normalized epoch for the approximately 22 year Hale (magnetic polarity) cycle,…
Directed Network of Substorms Using SuperMAG Ground-Based Magnetometer Data
L. Orr, S. C. Chapman, J. W. Gjerloev
We quantify the spatiotemporal evolution of the substorm ionospheric current system utilizing the SuperMAG 100+ magnetometers.We construct dynamical directed networks from this dat…
On Generalized Langevin Dynamics and the Modelling of Global Mean Temperature
Nicholas Watkins, Sandra Chapman, Aleksei Chechkin +3
Climate science employs a hierarchy of models, trading the tractability of simplified energy balance models (EBMs) against the detail of Global Circulation Models. Since the pionee…
Overlapping Magnetic Activity Cycles and the Sunspot Number: Forecasting Sunspot Cycle 25 Amplitude
Scott W. McIntosh, Sandra C. Chapman, Robert J. Leamon +2
The Sun exhibits a well-observed modulation in the number of spots on its disk over a period of about 11 years. From the dawn of modern observational astronomy sunspots have presen…
An ALMA survey of the brightest sub-millimetre sources in the SCUBA-2 COSMOS field
J. M. Simpson, Ian Smail, U. Dudzeviciute +19
We present an ALMA study of the ~180 brightest sources in the SCUBA-2 map of the COSMOS field from the S2COSMOS survey, as a pilot study for AS2COSMOS - a full survey of the ~1,000…
Timing Terminators: Forecasting Sunspot Cycle 25 Onset
Robert J Leamon, Scott W. McIntosh, Sandra C. Chapman +1
Recent research has demonstrated the existence of a new type of solar event, the "terminator." Unlike the Sun's signature events, flares and Coronal Mass Ejections, the terminator…