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Seismological station Úpice
Zedník, Jan
Seismological station Úpice was established by the Geophysical Institute ASCR at the Astronomical observatory in Úpice in 1986. Digital acquisition system was installed in the station in 2003. Data are transmitted in real time by Internet to the Geophysical Institute in Prague for a joint analysis with other stations of the Czech Regional Seismic Network.
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Lengths of new grapevine sprouts as a contribution to reconstruction of spring air temperatures in the 18th century
Střeštík, Jaroslav ; Verö, J.
Lengths of grapevine sprouts measured on the 24th April since 1740 and archived in the town museum in Köszeg have been compared with air temperatures observed in March and April at different station in the vicinity. Correlation coefficients reach more than 0.6 and decrease with the increasing distance from Köszeg. Also the long-term course of spring temperature and grapevine sprouts corresponds to each other. Correlation was higher when temperatures were compared with logarithms or square roots of the grapevine lengths. Correlations of the lengths with other quantities were poor. These results confirm that during 1740 to 1780 spring temperatures were relatively high, surely higher than those in the 19th century.
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Dynamics of Earth gases emissions in Czechia
Kroufek, J. ; Stejskal, M. ; Šebor, G. ; Mrlina, Jan ; Tesař, J. ; Suchý, V. ; Zeman, A.
A monitoring of the Earth gases emissions was carried out at selected sites in Cechia. Particularly, methan, CO2, SO2, Rn a H2S were investigated. It was proved that neither the chemical composition, nor the emissions themselves can be considered as permanent. They may be affected by geological processes including earthquakes, as well as by man-made activities.
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Several utilities for comfortable control of interactive graphical interface
Kolář, Petr
Standard MATLAB libraries do not include some tools for interactive figure processing, even if such functions are common in other graphical programs. Therefore we developed following graphical utilities: i, precise interactive selection of a figure area, ii repetition of a press-button function, iii movement of zoomed figure by slides and iv interactive graphical editor of cursor and button icons.
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