Sunday, December 10, 2017

Minor Geomagnetic Storm May Hit Earth on December 11-12

Credit: NASA

A G1-class (minor) geomagnetic storm may hit the Earth on Monday or Tuesday, according to National Oceanic and Atmospheric Administration (NOAA). This is due to a fast-moving solar wind that is expected to reach our planet around December 11.

As a result of the upcoming minor geomagnetic storm, auroras could be visible around Earth's poles and weak power grid fluctuations could occur. Such storm could also have minor impact on satellite operations.

In general, geomagnetic storms can increase the density and distribution of density in the upper atmosphere, causing extra drag on satellites in low-earth orbit. The local heating also creates strong horizontal variations in the in the ionospheric density that can modify the path of radio signals and create errors in the positioning information provided by GPS. While the storms create beautiful aurora, they also can disrupt navigation systems such as the Global Navigation Satellite System (GNSS) and create harmful geomagnetic induced currents in the power grid and pipelines.

Fast coronal hole high speed streams (CH HSSs) can impact Earth’s magnetosphere enough to cause periods of geomagnetic storming to the G1-G2 levels; although rarer cases of stronger storming may also occur. The larger and more expansive coronal holes can often be a source for high solar wind speeds that buffet Earth for many days.

NOAA reveals that solar activity is generally expected to be at very low levels until year end. However, a G2-class (moderate) geomagnetic storm may occur on December 18.

1 comment:

  1. Recente resultaten van wetenschappers beweren dat ook radio activiteit word verhoog door die extra elektronen van de zon ,wat bewijzen dat in werkelijk elektronen in cirkels beweging zijn radio ,magnetische ,en andere stralingen in natuur .Er zijn drie elementen in opbouw van materie en enige dat heeft warmte en licht en dat zich natuurlijk bewegen ,zijn elektronen .Er bestaat geen andere element die kan geven radio signalen of magneet stralling. Ionizeere sfeer of thermmo sfeer is sfeer waar zich elektronen ,uit spectrum van de zon ,doorgaan of botsen ,met elektronen in cirkels uit aardse, voor ons on zichtbaar of over dekt spectrum van elektronen in cirkels .Wat wetenschappers beweren dat is zonnen wind of zonnen vlammen zijn gewon energetische belden die na enige tijd verdwijnen in omgeving vol met alles vullend ,koude ,doorzichtige massa .Enige die bereiken aarde zijn extra elektronen en verhoog radio activiteit [p door weer kaatsten wordt meer cirkels van elektronen verkleinen en gaat naar buten van aardse harde korst of spanning in begeleiders