PPM Climatology Abbreviation

PPM has various meanings in the Climatology category. Discover the full forms, definitions, and usage contexts of PPM in Climatology.

Parts Per Million

Most Common

Parts per million is a value that represents the part of a whole number in units of 1/1000000. Parts per million is dimensionless quantity, a ratio of 2 quantities of the same unit. For example: mg/kg. One ppm is equal to 1/1000000 of the whole.

Climatology
Perfect Prognosis Method

A method or technique of developing objective forecasting aids.

Climatology

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