DETECTION OF COSEISMIC CHANGES OF GREAT EARTHQUAKES IN GRACE TIME-VARIABLE GRAVITY FIELD WITH EMPIRICAL ORTHOGONAL FUNCTIONS:A CASE STUDY OF THE MW9.0 TOHOKU-OKI EARTHQUAKE
ZHANG Ke-liang, GAN Wei-jun, ZHOU Xin
SEISMOLOGY AND GEOLOGY . 2014, (3): 763 -774 .  DOI: 10.3969/j.issn.0253-4967.2014.03.017