10K+

Albedo

UK //ælˈbiː.dəʊ// US //ælˈbiː.doʊ// Pronunciation

Definition

The measure of reflectivity of a surface, usually expressed as a percentage.

Listen to definition

In simple words: The amount of sunlight a surface reflects.

Examples

• The albedo of ice is very high, meaning it reflects most sunlight.
• Mercury has a low albedo, indicating it absorbs more sunlight than it reflects.
• Researchers study the albedo of different surfaces to understand climate change.
• Albedo plays a crucial role in the Earth's energy balance.
• Forests typically have a lower albedo compared to deserts, influencing local temperatures.

Usage notes

Used mostly in scientific contexts, especially in astronomy and climate science. Less common in everyday conversation.

Grammar pattern

standalone noun

Memory hint

Think of 'A(lways) B(e) E(choing) D(aylight) O(n surfaces)' to remember reflectivity.

Collocations

• high albedo
• low albedo
• albedo effect

Synonyms

• reflectivity
• reflectance
• brightness

Common mistakes

• Confused with 'albedo effect', which specifically refers to the impact of reflectivity on climate.
• Mispronouncing the word, often as 'al-bee-do' instead of the correct pronunciation.
• Overusing the term outside of scientific discussions where simpler terms might suffice.