Established measurements of the concentration and near-surface flux of some greenhouse gases are also managed by our reseach institute.ĭr. These include monitoring of SR and the near-surface DC electric field, as well as optical observations of TLEs in Central Europe. Regrading greenhouse gases in the atmosphere (e.g., CO2, CH4), the variation of emission rates from natural and human activity-related sources can be studied and the geographical distribution of emission intensity can be monitored using the data obtained from the corresponding observation network.Ī significant fraction of research work in the institute is based on measurements managed locally. This enables getting information indirectly on the solid Earth (e.g., earthquakes), on chemical and biological systems (e.g., on the composition of air or on the effects of environmental EM fields on the biosphere), on climate change (e.g., on the distribution, frequency, and intensity of thunderstorms), and on space weather events (e.g., on the intensity of ionizing radiation, impact of solar flares and geomagnetic storms). These phenomena can be utilized both to characterize the electrical state of the near-Earth space and to study other environmental factors which are coupled to the changes of that state. Schumann resonances are global electromagnetic resonances, generated and excited by lightning discharges in the cavity formed by the Earths surface and the ionosphere. Specific topics are (1) parameters and variations of the quasi direct-current (DC) electric field between the Earth’s surface and the ionosphere (2) extremely low frequency (ELF, here 3-30 Hz) EM waves in the EM waveguide enclosed by the ground and the lower ionosphere: production (primarily by lightning), propagation, and Schumann resonance (SR, global EM resonances in the closed waveguide) (3) transient luminous events (TLE), e.g., red sprites, blue jets and (4) near-surface sources, concentration, and transport of greenhouse gases. The Schumann resonances (SR) are a set of spectrum peaks in the extremely low frequency (ELF) portion of the Earths electromagnetic field spectrum. 100 km height in the Earth’s atmosphere with an emphasis put on phenomena related more closely to the so called global electric circuit, and the intake, mixing, and transport of greenhouse gases in the Earth’s atmosphere. The resonance frequencies, known as Schumann resonances (SR) (Schumann, 1952), are determined by the Sprite ionisation of the mesosphere The Crete VLF receiver, located at 35.31°N and 25.08☎, began operation on July 18, 2003, shortly before the start of the EuroSprite2003 campaign. The corresponding work includes quantitative characterization of the physical properties of this region, understanding and interpretation of the processes there using the laws of physics, accommodation of the experiences in the complex system of nature as a whole, and seeking possibilities of utilization of the new information for the benefit of mankind.Īctual research in the institute focuses on two areas: electromagnetic (EM) phenomena occurring below ca. Home > Research > Research themes > Atmospheric physics Atmospheric physicsĪtmospheric physics aims at studying the atmosphere of planets with an emphasis on the Earth’s atmosphere.
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