Intense or correlated magnetic noise directly limits the "reach" of GW astronomy:
: These are global electromagnetic resonances excited by lightning strikes in the cavity between the Earth's surface and the ionosphere. They create magnetic fields that are coherent over thousands of kilometers, potentially causing correlated noise between distant detector sites. Problems of intense magnetic field in gravitati...
: Magnetic fluctuations can induce noise in the sensitive cabling and control electronics used to read out the detector's data. 3. Impact on Scientific Discovery Intense or correlated magnetic noise directly limits the