Liquid Water Path and Ice Water Path

The ice water path (IWP), defined as the integral of the ice water content (IWC) through the depth of an ice cloud layer, is a quantity of considerable importance in climate studies because it is critical for determining cloud absorption, optical depth (Platt and Harshvardhan 1988), albedo, and emissivity (Stephens 1980)

 

Liquid water path – in units of [kg/m²] is a measure of the total amount of liquid water present between two points in the atmosphere.[1]

LWP is an important quantity in understanding radiative transfer in the atmosphere. It is defined as the integral of liquid water content between two points in the atmosphere.