First Mode Schumann Resonance Frequency Variation During a Solar Proton Event

نویسندگان
چکیده

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Changes of the ® rst Schumann resonance frequency during relativistic solar proton precipitation in the 6 November 1997 event

The variations of the ®rst mode of Schumann resonance are analyzed using data from Kola peninsula stations during the solar proton event of 6 November 1997. On this day the intensive ̄ux of energetic protons on GOES-8 and the 10% increase of the count rate of the neutron monitor in Apatity between 1220 and 2000 UT were preceded by a solar X-ray burst at 1155 UT. This burst was accompanied by a ...

متن کامل

Variation of Solar Irradiance and Mode Frequencies during Maunder Minimum

Using the sunspot numbers reported during the Maunder minimum and the empirical relations between the mode frequencies and solar activity indices, the variations in the total solar irradiance and 10.7 cm radio flux for the period 1645 to 1715 is estimated. We find that the total solar irradiance and radio flux during the Maunder minimum decreased by 0.19% and 52% respectively, as compared to th...

متن کامل

Solar proton event: influence on stratospheric ozone.

Large-scale reductions in the ozone content of the middle and upper stratosphere over the polar cap regions were associated with the major solar proton event of 4 August 1972. This reduction, which was determined from measurements with the backscattered ultraviolet experiment on the Nimbus 4 satellite, is interpreted as being due to the catalytic destruction of ozone by odd-nitrogen compounds (...

متن کامل

PPS-87: a new event oriented solar proton prediction model.

A new event-oriented solar proton prediction model has been developed and implemented at the USAF Space Environment forecast facility. This new model generates predicted solar proton time-intensity profiles for a number of user adjustable energy ranges and is also capable of making predictions for the heavy ion flux. The computer program is designed so a forecaster can select inputs based on th...

متن کامل

Ionospheric Perturbations and Schumann Resonance Data

The properties of the first Schumann resonance mode are examined experimentally and theoretically to determine the influence of ionospheric disturbance events upon the electromagnetic earth-ionosphere cavity. On the experimental side, a phase-sensitive tracking system has been constructed to monitor the first mode peak frequency and Q on a continual basis. The tracking system monitored signals ...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

ژورنال

عنوان ژورنال: Terrestrial, Atmospheric and Oceanic Sciences

سال: 2016

ISSN: 1017-0839

DOI: 10.3319/tao.2015.12.02.01(aa)