light air

Thân thiện

A light air barely stirs the leaves on the tree.

Definition

Noun: A very light wind with a speed of 1 to 3 knots (approximately 1 to 3.5 miles per hour). It is the first level on the Beaufort scale, a system for measuring wind force. This wind is barely perceptible; it may be felt on the face and will cause smoke to drift slightly, but it does not move wind vanes.

Usage

This term is a technical classification used primarily in meteorology, maritime contexts, and aviation to precisely describe wind conditions. - It is used as a countable noun (e.g., a light air, light airs). - It often appears in weather reports, sailing forecasts, and descriptive passages.

Examples

• Noun:
  • The weather report indicated light airs for the morning, perfect for the novice sailors.
  • After the storm, the sea was calm with only a light air.
  • On the Beaufort scale, a wind speed of 2 knots is classified as a light air.

Advanced Usage

• "In light airs": A common phrase in sailing describing conditions with very little wind.
  • Racing in light airs requires a different set of sailing skills.

Variants and Related Words

• Light Breeze: The next level (Force 2) on the Beaufort scale, with winds of 4-6 knots.
• Calm: The level below (Force 0) on the Beaufort scale, indicating no wind.
• Zephyr: A literary term for a soft, gentle breeze, which can be similar to a light air.

Synonyms

• Gentle breeze (Note: This is technically Force 2 on the Beaufort scale, but is often used more loosely in general language).
• Soft wind.
• Faint wind.

Antonyms

• Gale.
• Strong breeze.
• Storm.

Học thuật

Noun

1. wind moving 1-3 knots; 1 on the Beaufort scale