Seasonal Change of the Ozone Layer State over Yakutia

The ozone layer state in the stratosphere over Yakutia depending on the year time is considered. It is shown that the layer thickness is maximum in February-March (450 Dobson's units) and it is minimum in July-September (300 - 350 DU). Measurements indicate that the ozone layer thickness was significantly decreased in the 1990's. A problem of change of ozone layer state is discussed.Comment: 3 pages, 2 figure

Physics of Auroral Phenomena

Abstract Statistical analysis of internal gravity wave parameters registered by variations of the hydroxyl molecule emission is presented. The wave structures are detected with an all sky infrared camera at the optical station of Maimaga (φ=63ûN; λ=129.50ûE geographic). The data obtained for the period of 1998 to 2002 show that the smallscale internal gravity waves propagate predominantly westward. The observed wavelengths vary from 15.4 to 100 km (the average value is ~40 km), the horizontal phase speeds are between 19 and 166 m s -1 (the average value is~63 m s -1 ) and the estimated periods are 9-90 min (the average value is ~17 min). The wavelengths and horizontal phase speeds are greater than those observed at middle and low latitudes. The rise of wavelengths and phase speeds at high latitudes is probably due to the large intensities of the filtering winds compared to those in the middle atmosphere. The short waves (wavelengths shorter than 17.5 km) propagate in the same direction as the long ones

Use of CRISTA mesopause region temperatures for the intercalibration of gound-based instruments

Most available ground-based (GB) techniques for measuring temperatures in the upper mesosphere to lower thermosphere (or mesopause region) have systematic errors that are comparable to those of orbiting instruments. Determining these unknown biasses would normally require colocated observations that are only seldom feasible. Satellite measurements can be used as a ‘‘transfer standard’’ between GB observations that are not colocated. In this context, even with a reproducible or known bias in the satellite data, the comparison is still meaningful. Since Cryogenic Infrared Spectrometers and Telescopes for the Atmosphere (CRISTA) temperatures cover the mesopause region with very good accuracy (statistical errors do not exceed 1.5 K and systematic uncertainties range from about 3–7.5 K), they are quite suitable for this purpose. Because of the nearly constant precision over the height range of interest, also rotational temperatures of airglow emissions from different altitudes like the OH and O2 bands (or the OI 558 nm line) can be successfully compared with each other. In spite of the limited number of overpasses during the relatively short CRISTA missions, the feasibility of such an intercalibration is demonstrated for widely separated GB sites. Here, the results obtained for GB measurements at eight different sites, using CRISTA-1 and CRISTA-2 data, are presented. For OH temperatures, the standard deviation between the different instruments is only 5.4 K, confirming previous estimates.Fil: Scheer, Jurgen. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Reisin, Esteban Rodolfo. Consejo Nacional de Investigaciónes Científicas y Técnicas. Oficina de Coordinación Administrativa Ciudad Universitaria. Instituto de Astronomía y Física del Espacio. - Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales. Instituto de Astronomía y Física del Espacio; ArgentinaFil: Gusev, O. A.. University of Wuppertal; AlemaniaFil: French, W. J. R.. Australian Antarctic Division; AustraliaFil: Hernandez, G.. University of Washington; Estados UnidosFil: Huppi, R.. State University Of Utah; Estados UnidosFil: Ammosov, P.. Institute of Cosmophysical Research and Aeronomy; RusiaFil: Gavrilyeva, G. A.. Institute of Cosmophysical Research and Aeronomy; RusiaFil: Offermann, D.. University of Wuppertal; Alemani

Sustainable Development of Universities: International and Russian Practices

The introduction of the principles of sustainable development into the world system of higher education began 30 years ago. It is one of the global trends now. The accumulated international experience is quite extensive and could be used in the development of the national concept of sustainable development of Russian higher education. The article is devoted to the analysis of the sustainable development networks interactions in higher education in the world and in Russia. Special attention paid to various stability ratings of universities. The experience of sustainable program implementation has been revealed on the example of the University of Hokkaido, one of the seven national corporations in the system of higher education of Japan. The experience of energy and resource-saving measures in the North-Eastern Federal University (Yakutsk, Russia) including the energy performance contract, is presented. The necessity of actualization of the national project of sustainable development of higher education institutions of Russia and the development of a national rating of the sustainability adapted to the legal framework and budgeting is substantiated