Geophysics » Geomagnetic

STATION RECORDS IN THE STORM MAGNETISM BMKG


  1. Preliminary
  2. Earths magnetic field source is comprised of three elements of the magnetic field on earth, namely:

    1. Main Magnetic Field: The main magnetic field comes from the earth and the magnetic field is changing with time. In a magnetohydrodynamic theory advanced by WM Elasasser and E.C. Bullard, stated that at the core of the earth there is an ionized fluid flow, giving rise to the action of a dynamo by itself (Self-exiting dynamo action) which may lead to the main magnetic field of the earth (Lucky, 2001).
    2. Foreign field: Field outside sourced from outside the earth and is the result of ionization in the atmosphere caused by ultraviolet rays from the sun. Contribution of the external field is of the earths magnetic field by only about 1% of the total field.The sun emits a fixed stream of ionized hydrogen atoms (protons) and electrons that flow through the solar system at supersonic speed. Emerging as the solar wind interacts strongly with the Earths magnetic field causes magnetic storms that have developed the Earths magnetic field changes

    On May 7 to 8 March 2012, there has been a solar storms that affect the Earths magnetic field and up to March 9, is still ongoing. This change has been recorded in the observation stations owned BMKG Earth Magnet, from the recording station Geophysics Kupang and Manado Geophysical Observatory Station Port Queen, has been a change due to daily variation of magnetic storms, changes in the Earths magnetic field is on average about 50-100 nT. the effects of Hurricane Magnetism can affect the communication system.



  3. Graph Analysis
    1. Chart recording observations Magnet Earth Station in Kupang Geophysics Station
    2.  

      March, 3rd - 8th 2012

       



    3. Chart recording observation stations in the Station Geophysical Earth Magnet Manado
    4.  

      March, 7th 2012


      March, 8th 2012

       



    5. Graph Recording Station Magnet Earth Observations at the Pelabuhan Ratu Observatory
    6.  

      March, 7th 2012


      March, 8th 2012

       

::: @xf


  » Other relevant information...

STATION RECORDS IN THE STORM MAGNETISM BMKG [9/3/2012]
On May 7 to 8 March 2012, there has been a solar storms that affect the Earths magnetic field and up to March 9, is still ongoing. This change has been recorded in the observation stations owned BMKG Earth Magnet, from the recording station Geophysics Kupang and Manado Geophysical Observatory Station Port Queen, has been a change due to daily variation of magnetic storms, changes in the Earths magnetic field is average about 50-100 nT . the effects of Hurricane Magnetism can affect the communication system.


Isomagnetic Map Epoch 2010.0 [5/4/2011]
Since 1960’s, magnetic repeat station surveys in Indonesia have been carried out by Meteorological Climatological and Geophysical Agency (BMKG). This geophysical note describes five geomagnetic component data reduced to the Epoch 2010.0. The five components consist of Declination (D), Inclination (I), Vertical (Z), Horizontal (H), and Total Geomagnetic Field (F). The data reduction used one permanent observatory i.e., Tondano Geophysical Observatory, as a reference standard.


MEASUREMENT POINT LOCATION EPOCH [11/11/2010]
BMKG perform periodic earths magnetic observations at specific points called the repeat stations, every 5 (five) years. The number of repeat station currently there are 84 points. The results of this measurement is used to map iso-magnetic memperbaharuhi in Indonesia.


GEOMAGNETIC [11/11/2010]
Magnets Earth Observation in Indonesia began to take place in Jakarta in 1866 by the Royal Observatory Magnetisch en Meteorologisch, the Dutch colonial administration. System equipment used for observation at the time was still using magnetograph photo. At this time BMKG earths magnetic phenomena observed in 5 stations, namely at the station Tangerang Geophysics (1964), Geophysical station Tuntungan, Medan (1980), and stations in Tondano Manado Geophysics (1990).



 

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