jgg     2009 29 (6):  8-12    ISSN: 0412-1961  CN: 21-1139/TG ANALYSIS OF DISTURBANCE FROM CALCULATION DATUM OF LONGMENSHAN REGIONAL GRAVITY NETWORK Sun Shaoan 1 2) ;Xiang Aimin 1 2) and Zhou Xin 1 2) 1) Institute of Seismology, CEA, Wuhan 4300712) Crustal Movement Laboratory, Wuhan 430071 Received: 1900-01-01  Revised: 1900-01-01  Online: null Supporting info null