Polar Region Imaging Riometer Database

1. Name of Database:  Polar Region Imaging Riometer Database

2. Institution:  Solar-Terrestrial Environment Laboratory
             Nagoya University

3. Contents of Database:

This database provides imaging riometer (IRIS) data observed at Ny-Aalesund, Svalbard since 1991.  
By coordinated analysis of this database with the same IRIS data obtained at Greenland and Iceland, 
the study of dynamics of auroral particle precipitations in the Arctic region is performed, and 
also by combining the data obtained at Chinese Zhongshan Station, Japanese Syowa Station in Antarctica 
the study of inter-hemispherical symmetry and asymmetry of auroral particle precipitations is performed.
Original imaging riometer data consist of two-dimensional cosmic noise intensities with 8x8 channels 
sampled every 4 seconds. 64-channels quiet-day curves (QDCs) are reduced from original data every month, 
and thus real ionospheric absorption data are obtained by subtraction between original data and QDCs. 
Absorption data composed from 8-channels on the north-south and east-west beams are plotted as a quick 
look, and are recorded by CD-R through the scanner and personal computer as a database for public 
offering in future. 

4. Examples of Database: 



5. Contact:

　Masanori Nishino
　STE Laboratory
　Nagoya University
　TEL: +81 533 89 5167, FAX: +81 533 89 1539
　E-mail: nishino[AT]stelab.nagoya-u.ac.jp

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