Machine learning and signal processing methods offer significant benefits to the geosciences, but realizing this potential will require closer engagement among different research communities.
magnetic fields & magnetism
Scientists Mine 16th Century Ship Logs for Geophysical Research
Compass measurements held a key to unlocking the mystery of Earth’s magnetic field and its changes over time. A historian-turned-geoscientist found the measurements in an unlikely place—merchant ship logs.
New Spherical Cap Field Model for Europe and Direct Environs
New data on ancient burnt structures is integrated into a superior spherical cap field model for Europe.
Marine Isotope Stage 6: First High-Resolution Field Record
A 200-year resolution record from the Black Sea for marine isotope stage 6 (130-180 ka) shows a stable geomagnetic field.
Saturn’s Dynamo Illuminates its Interior
Saturn’s oddly symmetrical magnetic field can be explained by models in which the active dynamo region is overlain by a thick, stable layer cooled more strongly at the poles.
Upward Lightning Takes Its Cue from Nearby Lightning Events
Lightning in a thunderstorm changes the electromagnetic field in a way that sparks upward lightning from tall structures.
Probing the Age of the Oldest Ocean Crust in the Pacific
A new study extends the calibration of the Mesozoic Sequence down to the Mid Jurassic with multiscale marine magnetic anomaly data, demonstrating extraordinarily high reversal frequency.
Modernizing a Global Magnetic Partnership
For 30 years, INTERMAGNET, a worldwide network of ground-based observatories, has aided advances in navigation, precision drilling for oil and gas, and mitigating space weather impact on technology.
Red Rocks: Using Color to Understand Climate Change
A recent study on hematite formation during the Triassic may help predict the effects of climate change on contemporary monsoonal environments.
