What does Radm stand for?

Rear Admiral

RADARman (GFGA)

Radar Model (SAUS)

Random-Access Data Modulation (SAUS)

Random Walk Advection and Dispersion Model - Environmental Protection Agency (GFGA)

Rear Admiral - Also, RA, RADML (AAG)

Regional Acid Deposition Model - for acid rain - Environmental Protection Agency