Isopleths for Weather Parameters

Isopleth	Meaning
Isotherm	Lines of equal temperature
Isonomals	Lines of equal thermal anomalies
Isobar	Lines of equal atmospheric pressure
Isotech	Lines of equal wind speed
Isohytes	Lines of equal rainfall
Isoplethes	Lines of equal water table
Isoneps	Lines of equal cloud cover
Isohels	Lines of equal sunshine duration
Issallbars	Lines of equal pressure distribution
Isostere	Lines of constant soil moisture
Isobath	Lines of equal water table elevations
Isophene	Lines of similar seasonal phenomenon
Isopluvial	Same amount of precipitation or rainfall
Isochrones	Lines joining all points of same key elements (e.g. time of start of precipitation)
Thermoisoplethes	Lines of equal soil temperature