number_concentration_of_cloud_condensation_nuclei_in_air

under discussion
Created: Oct. 29, 2021
Proposer: Markus Fiebig
Proposed Date: 2021-09-22
Change Date: Oct. 29, 2021, 2:49 p.m.
Term: number_concentration_of_cloud_condensation_nuclei_in_air
Unit: m-3
Unit ref: PCUM
AMIP:
GRIB:
The cloud condensation nuclei number concentration is the total number of aerosol particles per unit volume independent of and integrated over particle size that act as condensation nuclei for liquid-phase clouds. A coordinate variable with the standard name of relative_humidity should be specified to indicate that the property refers to a specific supersaturation with respect to liquid water. The ability of a particle to act as a condensation nucleus is determined by its size, chemical composition, and morphology.