A parcel of air is saturated. Its dewpoint temperature is equal to its temperature.

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BlackTom AI · Accepted Answer

Start by restating what the dew point represents: the temperature to which air must be cooled at a given pressure for water vapor to begin condensing (i.e., reach saturation). When air is already saturated (relative humidity ~100%), the current temperature is already the temperature at which saturation occurs. 
Option 1: 'true' — This is correct because if the parcel is saturated, its dew point equals its actual temperature.
Option 2: 'cannot tell' — This is incorrect because saturation provides enough information to determine the relationship between dew point and temperature; no additional data is needed.
Option 3: 'false' — This is incorrect since it contradicts the defining idea that a saturated air parcel’s dew point matches its current temperature.

CLMTGR5001_002_2025_3 - Dynamics of Climate Variability and Chan Quiz 3d Week 3 Lecture 4

A parcel of air is saturated. Its dewpoint temperature is equal to its temperature.

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