1. 1 Temperature effect of the muon component of cosmic ray and practical possibilities of its accounting Berkova M., Belov A., Smirnov D., Eroshenko E., Klepach E., Yanke V. Pushkov Institute of Terrestrial Magnetism, Ionosphere and Radio Wave Propagation RAS (IZMIRAN), Moscow, Russia Our goals : To receive the hourly data of the muon telescopes without temperature effect for the whole period of observations. We use data from Nagoya telescope, Yakutsk telescope (sea level and 7 mwe), Yakutsk ionization chamber. To examine the theoretical densities of the temperature coefficient by experiment. To examine and prepare the experimental data for the next stage. First of all it’s definition of the spectral variations of the cosmic rays in a huge range of energy (1-100 GeV), and also the reconstruction of the altitudinal temperature profile of atmosphere according to various types of detectors with various thresholds of registration.

2. 2 As to global data radio-scan, optical, acoustic and radar-tracking sounding give only 15 % of information about an altitudinal behavior of atmosphere temperature, leaving almost uncovering large oceanic, subpolar and mountain areas; one can capture these areas only by the satellite’s measuring. In meteorology models which allow to receive an altitudinal behavior of temperature in atmosphere in any point and at any moment are built on the basis of the generalised data. We obtained the data of altitudinal sounding for the standard isobaric levels at our points of interest. Corrections for the temperature effect were calculated as : Data of Temperature Sounding Comparison of temperature distribution in atmosphere for Moscow region according to the NOAA model (red triangles) and experimental data (black circles).

3. 3 Nagoya Muon Telescope

4. 4 Yakutsk ionization chamber

5. 5 Yakutsk Muon Telescope (sea level)

6. 6 Yakutsk Muon Telescope (7mwe)

7. 7 1) Completeness and accuracy of the data of altitudinal atmosphere temperature profile received on the basis of the model (NOAA, 2008) is satisfactory enough for the muon telescopes correction for the temperature effect for intervals from monthly average to hourly average. 2) Comparison of the muon component data of the Nagoya scintillation telescope, corrected for the temperature effect, with the data of other detectors (neutron monitors) has proved experimentally the correctness of the used densities of temperature coefficients for all directions. It is nesessary to improve the densities of temperature coefficients for Yakutsk detectors with taking into account a thickness of the screen over the detector and other parametres. 3) The hourly, daily and monthly average data corrected for the temperature effect over all supervision period are received and accessible to the address: ftp://cr0.izmiran.rssi.ru/COSRAY!/FTP_MUON/ Summary