quan - rate
- rainfall chart
- rainfall distribution
- rainfall distribution coefficient
- rainfall duration
- rainfall erosivity
- rainfall excess
- rainfall factor
- rainfall flood
- rainfall intensity
- rainfall interception
- rainfall map
- rainfall pattern
- rainfall recording station
- rainfall regime
- rainfall run-off
- rainfall runoff
- rainfall runoff recharge
- rainfall season
- rainfall variation
- rainfall variations
- rainfall-intensity curve
- rainfall-runoff quality
- rainfall-runoff relation
- raingauge
- raininess
- rainless period
- rainless region
- rainmeter
- rainout
- rains
- rainsheet
- rainstorm
- rainwash
- rainwater catchment
- rainwater dispersion
- rainwater disposal
- rainwater harvesting
- rainwater pipe
- rainwater run-off
- rainwater sample