ON Line Publications Solar-Terrestrial Influences Laboratory of the Bulgarian Academy

INFLUENCE OF GEOMAGNETIC DISTURBANCES OF SOLAR ORIGIN
ON SOME HUMAN PHYSIOLOGICAL AND SUBJECTIVE PARAMETERS
Svetla Gorianova Dimitrova

SUMMARY OF THESIS FOR CONFERRING EDUCATIONAL AND SCIENTIFIC DEGREE Ph.D

LOW ENERGY SPECIES IDENTIFICATION IN MAGNETOSPHERIC BOUNDARY LAYERS: CASE STUDY
R. Koleva, A. Fedorov, J. Semkova, V.Smirnov

To be published in Adv. Space Res, 2002, Proceedings of the COSPAR Colloquium
“Acceleration and Heating in the Magnetosphere”, Warsaw, 5 – 9 February 2001.

MULTI-COMPONENT ION FLUXES IN THE NEAR-EARTH MAGNETOTAIL: CASE STUDY
R. Koleva, J. Semkova, V. Smirnov, A. Fedorov

Submitted to Adv. Space Res, 2002, Proceedings of the COSPAR Colloquium
‘Plasma Processes in the near- Earth Space: INTERBALL and Beyond’, Sofia, 5-10 February 2002

Amei-2 Observations of Magnetospheric Oxygen in the Magnetosheath
R. Koleva, J. Semkova, V. Smirnov, A. Fedorov

Proceedings of 8^th STIL-BAS conference, 111-114, Sofia, December, 6-7, 2001. pp.15-18

CORRELATIONS BETWEEN SOLAR AND GEOMAGNETIC ACTIVITY
Katya Georgieva, Boyan Kirov

Proceedings of 8^th STIL-BAS conference, 111-114, Sofia, December, 6-7, 2001.

LONG-TERM CHANGES IN EARTH ROTATION RATE AND NORTH-SOUTH SOLAR ROTATION ASYMMETRY
Katya Georgieva

Proceedings of 8^th STIL-BAS conference, 107-110, Sofia, December, 6-7, 2001.

SOLAR ASYMMETRY, QBO (quasibiennial oscillation of stratospheric winds) AND CLIMATE
Katya Georgieva¹, Vitchko Tsanev², Boyan Kirov¹

One of the main problems in solar-climatic influences is the instability of the relations found. Different authors have reported both positive and negative correlations between solar activity and surface air temperatures. We have performed a detailed study making use of global, hemispheric and zonal temperature estimations, as well as of data from individual meteorological stations with long measurement records, to show that the sign of the correlation changes regularly in consecutive centennial solar cycles and seems determined by the North-South asymmetry of solar activity: the correlation is positive when the Northern solar hemisphere is the more active one, and negative when more active is the Southern solar hemisphere. On the other hand, the sign of the correlation between solar activity and different climatic elements reveals a similar dependence on the phase of the quasibiennial oscillation of stratospheric winds (QBO). QBO signals have been identified in a number of geophysical parameters, e.g. sea level pressure, ozone distribution, Earth's rotation, and its existence has been shown in solar activity parameters as sunspot numbers, solar radio flux at 10.7 cm, green coronal activity, solar neutrino flux, etc. In the present paper we show that QBO exists in solar North-South asymmetry as well, and discuss the relation between the quasibiennial oscillation in solar asymmetryand in stratospheric zonal winds, and its possible implications on climate.

DOSIMETRY MEASUREMENTS DURING A BALLOON AND AIRCRAFT FLIGHTS
F. Spurny¹, Ts. Dachev², B. Tomov², Yu. Matviichuk², Pl. Dimitrov² K. Fujitaka³, Y. Uchihori³, H. Kitamura³

ECOTOX - AN AUTOMATIC BIOASSAY SYSTEM TO DETECT TOXIC SUBSTANCES IN WATER
Donat-P. Hader¹, Ts. Dachev²

The interest in testing of water and waste water for toxic compounds has increased in the last few years with rising pollutant levels from industry and private households and with a rising sensibility towards environmental problems. Complimentary to chemical analyses more and more biological test systems are being used. These systems can give information about ecological consequences of pollutants or waste water in aquatic environments. The main objective of this paper is to describe the development of a reliable, automatic instrumentation to monitor pollution and toxic substances in aquatic ecosystems as well as waster water from industry and effluxes from municipal solid waste disposals. The criteria for the development of the instruments is high sensitivity for a wide range of pollutants and reliability, low costs, ease of use, unattended service for extended periods of time, automatic data collection and communication as well as automatic alarm for direct feedback to the pollution sources.

DESCRIPTION OF THE R3D INSTRUMENT FOR THE ROSE EXPERIMENT ON ISS
Ts. Dachev¹ , B. Tomov¹, Yu. Matviichuk¹, Pl. Dimitrov¹, D. Mishev¹ D.-P. Hader², G. Horneck³, G. Reitz³

The external platform of the International Space Station (ISS) will provide a unique testbed for exobiological studies of processes under free space conditions. To this end, ESA is developing the EXPOSE facility that is to be attached to the External Pallet of the truss structure of the ISS for 1.5 years during the ISS early utilization period. EXPOSE will support long term in situ studies of microbes in artificial meteorites as well as of microbial communities from special ecological niches, such as endolithic and endoevaporitic ecosystems. The Radiation Risks Radiometer-Dosimeter (R3D) is a low mass and low-dimensions automatic device, which will measure solar radiation in 4 channels and cosmic ionizing radiation. The four-channel: UV-A (315-400 nm), UV-B (280-315 nm), UV-C (>280 nm) and Photosynthetic Active Radiation (PAR) (400-700 nm) filter dosimeter will measure the solar UV irradiance in W/m2  (NO!). Additional measurements of the temperature of the UV detectors are performed for more precise UV irradiance measurements. The deposited energy spectra of the cosmic ionizing radiation will be measured in 256-channel spectrometer. The analysis of the spectra will give as well the total dose in mGy/h and the particle flux in particle/cm2 s. Measurements of the UV and ionizing radiation parameters will have 10 second time resolution and will be transmitted by the ISS telemetry system to the ground. All available data will be organized in a specialized database, which will support the analysis of the experiments on the EXPOSE facility.

МОБИЛНА СИСТЕМА ЗА РЕГИСТРАЦИЯ НА ОСНОВНИ ПАРАМЕТРИ НА СЪРДЕЧНО-СЪДОВАТА СИСТЕМА
М. М. Йорданова¹, Цв. П. Дачев², Б. Т. Томов², Ю. Н. Матвийчук², Пл. Г. Димитров², Д. Хедер³, П. Мишев⁴, В. Янакиев⁴, O. Ферер-Рока⁵, П. Кънчев⁶