Geography

Possibilities of Modern Interactive Educational Technologies Using in Higher Professional Education (with Geoinformatics as an Example)

The article represents main features of modern interactive educational technologies adoption of higher school educational process (with geoinformation systems classes as an example)

Landscape Zoning of the Saratov Region’ Right Bank

The article is devoted questions of regional level geosystems landscape zoning with Saratov region’s right bank as an example. Mapping was organized with GIS technologies using on the basis of topographic and thematic maps and space images decoding

Estimation of the Present State of Agro-climatic Resources of Saratov Region

The paper demonstrates the modern agro-climatic recourses for the period 1981–2012 years and their comparison with the climatic norms for the last period 1912–1980 gg. Shows trends multiyear variations of agro-climatic indices by natural zones of the Saratov region

Search for Long-period Harmonics of Insolation Changes Caused by Planetary Perturbations of Earth’s Orbit

Coming to the Earth a flux of solar radiation is calculated using of modern numerical methods of celestial mechanics over a time interval of about 6000 years with the sampling interval of one year. The luminosity of the Sun was assumed constant. In the power spectrum of the insolation time series detected harmonic of the synodic period of the Mars, as well as harmonics of the combination frequencies of synodic periods of the planets Venus, Jupiter and Saturn, and the frequency corresponding to the sidereal year.

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