Geomagnetic Pulsations

Solar activity is carried out into the solar system by the solar wind. The solar wind interacts with the Earth's magnetic field and generates measurable ground level and atmospheric effects. For example, from the Earth's surface, using the array of BGS observatories, we observe in near to real time the ultra-low frequency (ULF) geomagnetic field line resonances known as 'pulsations'. Observations of pulsations help remotely diagnose activity occurring in the plasmasphere, for example, the density variations in the plasma that can disrupt satellite communications.

Currently we operate Pi1, Pi2 and broadband monitors.

Note: Data are updated every 10 minutes and span the latest 6 hours.

The map below shows sites where we operate monitors.

Broadband Monitor: 1-500 mHz (2-1000 seconds)

JCO Broadband SVG — Jim Carrigan Observatory broadband monitor.

LER Broadband SVG — Lerwick Observatory broadband monitor.

ESK Broadband SVG — Eskdalemuir Observatory broadband monitor.

SBL Broadband SVG — Sable Island Observatory broadband monitor.

HAD Broadband SVG — Hartland Observatory broadband monitor.

PST Broadband SVG — Port Stanley Observatory broadband monitor.

ASC Broadband SVG — Ascension Island Observatory broadband monitor.

Jim Carrigan Observatory broadband monitor — Jim Carrigan Observatory broadband monitor.

LER broadband monitor — LER broadband monitor.

ESK broadband monitor — ESK broadband monitor.

SBL broadband monitor — SBL broadband monitor.

HAD broadband monitor — HAD broadband monitor.

PST broadband monitor — PST broadband monitor.

ASC broadband monitor — ASC broadband monitor.

Pi1 Monitor: 25-500 mHz (2-40 seconds)

JCO Pi1 SVG — Jim Carrigan Observatory Pi1 monitor.

LER Pi1 SVG — Lerwick Observatory Pi1 monitor.

ESK Pi1 SVG — Eskdalemuir Observatory Pi1 monitor.

SBL Pi1 SVG — Sable Island Observatory Pi1 monitor.

HAD Pi1 SVG — Hartland Observatory Pi1monitor.

PST Pi1 SVG — Port Stanley Observatory Pi1 monitor.

ASC Pi1 SVG — Ascension Island Observatory Pi1monitor.

Jim Carrigan Observatory Pi1 monitor — Jim Carrigan Observatory Pi1 monitor.

LER Pi1 monitor — LER Pi1 monitor.

ESK Pi1 monitor — ESK Pi1 monitor.

SBL Pi1 monitor — SBL Pi1 monitor.

HAD Pi1 monitor — HAD Pi1 monitor.

PST Pi1 monitor — PST Pi1 monitor.

ASC Pi1 monitor — ASC Pi1 monitor.

Pi2 Monitor: 7-25 mHz (40-150 seconds)

JCO Pi2 SVG — Jim Carrigan Observatory Pi2 monitor.

LER Pi2 SVG — Lerwick Observatory Pi2 monitor.

ESK Pi2 SVG — Eskdalemuir Observatory Pi2 monitor.

SBL Pi2 SVG — Sable Island Observatory Pi2 monitor.

HAD Pi2 SVG — Hartland Observatory Pi2 monitor.

PST Pi2 SVG — Port Stanley Observatory Pi2 monitor.

ASC Pi2 SVG — Ascension Island Observatory Pi2 monitor.

Jim Carrigan Observatory Pi2 monitor — Jim Carrigan Observatory Pi2 monitor.

LER Pi2 monitor — LER Pi2 monitor.

ESK Pi2 monitor — ESK Pi2 monitor.

SBL Pi2 monitor — SBL Pi2 monitor.

HAD Pi2 monitor — HAD Pi2 monitor.

PST Pi2 monitor — PST Pi2 monitor.

ASC Pi2 monitor — ASC Pi2 monitor.

Data and Services

Models & Compass Variation

Space Weather

Directional Drilling

BGGM
IFR
IFR1/IFR2 2.96MB pdf

INTERMAGNET software