rabal
radar
radar climatology
radar echo
radar equation
radar meteorological observation
radar meteorology
radar reflectivity
radar scatterometer
radar screen
radar sounding
radar storm detection
radar wind sounding
radarsonde
radial inflow
radial wind
radiance
radiance temperature
radiant emittance
radiant energy
radiant exitance
radiant exposure (at a point of a surface, for a given duration)
radiant flux
radiant intensity (of a source in a given direction)
radiant power
radiation
radiation balance
radiation balance meter
radiation belts
radiation chart
radiation climate
radiation fog
radiation frost
radiation inversion
radiation model
radiation point
radiation pressure
radiation station
radiation thermometer
radiational cooling
radiative cooling
radiative equilibrium
radiative heating
radiative transfer
radiatus (ra)
radio atmometer
radio aurora
radio direction-finder - RDF
radio duct
radio refractive index
radio sounding
radioactive fallout
radioactive precipitation
radioactive tracer
radiocarbon dating
radioelectric meteorology
radiogoniograph
radiogoniometer
radiogoniometry
radiomaximograph
radiometeorology
radiometry
radiosonde
radiosonde balloon
radiosonde observation
radiosonde station
radiotheodolite
radiowind
radiowind observation
radome
radon
rain
rain erosion
rain shadow
rain shower
rain stage
rain washout
rain-making
rain-out
rainband
rainbow
raindrop
raindrop size distribution
raindrop spectrometer
rainfall
rainfall duration
rainfall excess
rainfall intensity
rainfall rate
rainfall station
raingauge
raingauge shield
rainstorm
rainy season
ram penetrometer
ramsonde
random forecast
randomization
range-height indicator - RHI
rawinsonde
rear of a depression
recording albedometer
recording anemometer
recording barometer
recording frigorimeter
recording instrument
recording raingauge
recording theodolite
recurvature
red noise
reduction of pressure to a standard level
reduction of temperature to mean sea-level
reference atmosphere
reference climatological station
reflectance
reflected global radiation
reflected solar radiation
reflected terrestrial radiation
reflection factor
reflection nephoscope
reflectometer
regeneration of a depression
régime
region of thunderstorm activity
regional basic synoptic network
regional broadcast
regional forecast
regional meteorological office
regional standard barometer
regular broadcast
relative humidity of moist air with respect to ice (Ui)
relative humidity of moist air with respect to water (Uw)
relative ionospheric opacity meter
relative moisture of the soil
relative sunspot number
relative topography
relative vorticity
relative wind
relaxation method
remote sensing
remote sounding
representative meteorological observation
resistance thermometer
resolution
resonance theory
response time
resultant wind
retention
retrograde depression
retrogression
return streamer
return stroke
returning polar air
reversal of the monsoon
reverse flow thermometer housing
reversible process
ribbon lightning
ridge
ridge line
ridge of high pressure
rime
rime fog
ring current
riometer
river
rocket lightning
rocket sonde
rocket sounding
rockoon sounding
roll vortex
rotating dishpan experiment
rotor clouds
roughness coefficient
roughness length
roughness parameter
round-off error
route forecast
run-of-wind anemometer
running means
runoff
runway visual range - RVR