Is there something strange with the gravity during total solar eclipses?

[Tilemachos]

I have found some papers about strange observations in the Earth gravity during total solar eclipses. There is a very small difference (~10^-9) but there is a differnce (see the attachment).
Is there the possibility to be a new gravity phenomenon?

I think that it can be an atmospheric phenomenon, there are a lot of air turbulence during eclipses which maybe can cause these differences...

Your opinions please.

 

[Sorry!]

Hey, there's already been a discussion on this topic recently:

https://www.physicsforums.com/showthread.php?t=327460