児玉哲哉’s Post

EARTH'S GEOMAGNETIC FIELD The earth's geomagnetic field (as shown in the image below) has a significant influence on the signature of magnetics' anomalies. Understanding the intensity (strength) of the earth's magnetic field will greatly assist in interpreting magnetic anomalies.

This past week has ushered a litany of high-caliber X-class solar flares; extreme G5 coronal mass ejections (CME's); and, attendant proton radiation storms slamming into Earth's, thus far, resillient magnetic shield. So what's next? Besides the sun spot responsible for hurtling these plasma ejections our way rotating around out of view and potentially revisiting us with the same intense outpouring... earthquake activity is already ramping up - and predictably so - once solar compression relents. Given the very high degree and enduring nature of the still-unfolding solar inundation, we may see very significant tectonic activity in the way of both earthquakes and volcanism. Of particular concern is Gakkel Caldera... one of the largest undersea vents known and increasingly positioned beneath Earth's creeping magnetic North Pole - vulnerable to solar intensity. Stefan Burns explains below. USGS offers observational access to earthquake and volcano activity, also below... Earthquakes https://lnkd.in/euUYfGq7 Volcanoes https://www.usgs.gov/vhp Gakkel Caldera https://lnkd.in/eQi4S9va ______________________________ #sun #earth #magnetosphere #magneticnorth #heliosphere #solar #solarstorm #cme #radiation #geophysics #tectonics #earthquakes #volcanism #volcanoes #gakkelcaldera #lisabrackensolaractivity ______________________________

【A Simple Mechanism for Generating a Geomagnetic Field】 Full article: https://lnkd.in/gAj_--U8 (Authored by Oleg Vladimirovich Styazhkin, from Sonda Unic Ltd., Russia.) This work proposes a simple mechanism for generating the #geomagnetic_field, presumably operating in the Earth's mantle, based on the ideal gas model, and shows that #thermal_ionization, the polarization of free electrons in response to density and temperature gradients, and the rate of angular rotation of the Earth are the main physical factors for the formation of the dipole mode of the magnetic field. 

The accelerating Geomagnetic Pole Shift was mathematically confirmed "based on the established physical analogy between the established relation for the energy flux (of the gravitational energy) and the Lorentz’s calibration condition (for the vector potential related with the scalar potential of the non-stationary electromagnetic field)." https://lnkd.in/dtNz5tpk

Earth's magnetic field is not as strong as a fridge magnet: Even though it protects us from powerful solar winds, the Earth's magnetic field is actually quite weak. Read more here: https://lnkd.in/gNaNPgwX

A new year and new innovative studies to be presented at the EUMETSAT 2024 conference #EMSC2024 #Wurztbürg, with a good representation of the work carried out within the atmospheric composition team at the CNRM of Météo-France Météo-France. Have a good conference to all 😁 -> Preparing to assimilate the future IRS infrared sounder into the MOCAGE chemistry transport model for ozone and carbon monoxide -> Towards the assimilation of IASI radiances for sand and dust -> Volcanic SO2 plume forecasting : a comparative assessment of satellite data assimilation and source inversion procedures -> A step further in the assimilation of IASI and CrIS radiances for O3 and CO in operations

In this week's post, Dr. Shreeja Das discusses the use of FEMR waves as a tool to predict earthquakes and shares some results from investigating the Dead Sea Fault. https://lnkd.in/dx_Wkj67 #egu #egugeodynamics

"The new #TargetEM system collects high-quality multicomponent data with low noise, high power, and a small transmitter–receiver offset. This airborne system and the developed advanced inversion methodology represent a new effective method for mineral resource exploration." "Inversion for 3D Conductivity and Chargeability Models Using EM Data Acquired by the New Airborne TargetEM System in Ontario, Canada" by Leif Cox, Michael S. Zhdanov and Alexander Prikhodko the article: https://lnkd.in/gsvT-d4P #airbornegeophysics #mineralexploration

“A coronal mass ejection (CME) is a massive eruption of plasma and magnetic fields from the Sun's corona into space. CMEs can cause geomagnetic storms, which can impact technological systems on Earth and in space. They can also cause the northern and southern lights, known as aurorae. Here are some things to know about CMEs: Formation: CMEs are caused by explosive reconfigurations of the Sun's magnetic fields. The exact mechanism of this process is not yet fully understood. Frequency: The frequency of CMEs varies with the 11-year solar cycle. During solar maximum, the Sun can produce up to three CMEs per day, while during solar minimum, it can produce about one per five days. Speed: CMEs can be accelerated to millions of miles per hour. Arrival: CMEs can take about 1 to 3 days to reach Earth. Impact: When a CME hits Earth's atmosphere, the particles stop and release their energy, causing the atmosphere to glow. Different atoms in the atmosphere glow different colors. Associated events: CMEs are often associated with solar flares, but they can also occur independently. Historical event: The largest recorded geomagnetic perturbation was likely caused by a CME in 1859. This event, known as the Carrington Event, disabled parts of the United States telegraph network.”