WHAT A YEAR 2020 IS TO BE
EARTH IS SURROUNDED BY A MAGNETIC FILED
Mother Earth is changing it’s Magnetic Field.The Magnetic Field of North pole has been shifting at record speed in recent years.Scientists using the European Space Agency’s (ESA) Swarm satellites are monitoring a weakening in Earth’s magnetic field in a region that stretches from Africa to South America. They called it as “South Atlantic Anomaly.”
Sloshing liquid iron in Earth’s outer core—which lies roughly 1,900 miles (3,200 kilometers) below us—generates our planet’s protective magnetic field. It guards against solar winds that ferry damaging charged particles. It also guides the navigation systems that direct everything from smart phones to satellites.
Scientists measure the strength of Earth’s magnetic field, or its magnetic intensity, using a unit called nanoteslas. Between 1970 and 2020, the minimum magnetic intensity in the anomalous region in the South Atlantic has plummeted from 24,000 nanoteslas to 22,000 nanoteslas, according to an ESA.
MAGNETIC FIELD OF THE EARTH