free-air gravity anomaly中文什么意思

海平重力异常

自由空间重力异常

自由空气重力异常

• free:    adj. (freer; frees ...
• air:    n. 1.空气，大气。 2.天空，空 ...
• gravity:    n. 1.认真，严肃，庄重。 2.重 ...
• anomaly:    n. 1.不规则，反常(现象)，异常 ...

百科释义

In geophysics, the free-air gravity anomaly, often simply called the free-air anomaly, is the measured gravity anomaly after a free-air correction is applied to correct for the elevation at which a measurement is made. The free-air correction does so by adjusting these measurements of gravity to what would have been measured at sea level.