Albedo is the ratio of reflected solar radiation to the total incoming solar radiation

Question

BlackTom AI · Accepted Answer

The statement presents a definition to evaluate: Albedo is the ratio of reflected solar radiation to the total incoming solar radiation.
Option 1: True. This aligns with the standard meteorological and planetary science definition of albedo, which measures how much of the incident solar energy is reflected by a surface or body. The ratio is dimensionless and typically expressed as a fraction or percent, reflecting reflectivity.
Option 2: False. This would imply albedo is something other than reflectivity, or that it involves more than the comparison between reflected and incoming radiation. In reality, albedo does not account for absorbed energy directly; it specifically quantifies the portion that is reflected out of the total incoming energy, so this option mischaracterizes the concept.
To check for conceptual accuracy, consider that a surface with high reflectivity (e.g., fresh snow) has a high albedo because a large fraction of incoming radiation is reflected. Conversely, a dark surface with low reflectivity has a low albedo because most radiation is absorbed. This reinforces that the ratio described in the statement corresponds to the standard definition of albedo, supporting the True option.

CLMT5001 Dynamics PRACTICE QUIZ: Week 2 Lecture 2

Albedo is the ratio of reflected solar radiation to the total incoming solar radiation

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Albedo is the ratio of reflected solar radiation to the total incoming solar radiation

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