unit for vertical integartion

[madan sigdel]

Dear Users

Will any expert can tell me the standard unit for moisture
convergence/divergence calculated using grads.

 First I have calculated vertical integrated moisture flux as kg/m s. I
think this unit is right as sp.humidity is kg/kg, pressure is hPa and wind
in m/s. Now using same moisture flux I want to calculate the
convergence/divergence. Waiting for your answer.

Thank you,
madan