ANALYSIS ON THE SEASONAL VARIATION OF THE AZIMUTH AND STRENGTH OF AMBIENT NOISE ENERGY IN NINGXIA AND ITS ADJACENT REGION
XIE Xiao-feng, YANG Wei, LI Jun, LIN Jian-min, WANG Wei-tao, YAO Lin, LÜ Jun-qiang
SEISMOLOGY AND GEOLOGY . 2014, (1): 80 -89 .  DOI: 10.3969/j.issn.0253-4967.2014.02.007