Follow Earth's cosmic-ray environment from public neutron monitor data. This is a research product: it does not forecast storms.
These tiles show the free demo endpoint. It returns demonstration data, not a live reading. Live readings from the NMDB neutron monitor network need an API key.
Cosmic rays from deep space collide with Earth's atmosphere, producing cascades of muons that penetrate everything around us. Their flux is modulated by solar activity, geomagnetic storms, and atmospheric conditions -- creating an invisible weather system.
A Forbush decrease marks the arrival of a solar storm's magnetic cloud, the kind of storm that drives geomagnetically induced currents (GICs) in power grids.
Cosmic ray flux spikes cause single-event upsets in satellite electronics. Track the conditions behind them.
Aircrew radiation dose varies 2-5x during solar particle events. Neutron monitor counts are a standard input to dose models.
Ionospheric disturbances from cosmic ray variations degrade GPS accuracy and disrupt HF communications. Track the cause, not just the effect.
Muon weather follows a measurable chain from solar physics down to ground currents and MT impedance. Whether it reaches earthquakes is a research question we are studying, not a forecast.
Stations from the Neutron Monitor Database, spanning polar to equatorial rigidity cutoffs.
Five REST endpoints for muon weather data. Health and demo endpoints are free, no authentication required.
Muon Weather endpoints come with every paid DeepMap AI plan, alongside 4,151 other API endpoints.