Translation guide
Japanese expressions for solar radiation, from scientific terms to everyday phrases about sunlight.
The physical phenomenon of electromagnetic radiation emitted by the sun, used in science, engineering, or formal contexts.
Standard scientific term for solar radiation. Used in meteorology, climatology, and physics.
Solar radiation has a major impact on Earth's climate.
Often used in engineering and architecture for solar irradiance or insolation. Common in contexts like solar panel efficiency or building design.
The light and warmth from the sun in daily conversation.
General word for sunlight. Used in everyday contexts like 'sunlight coming through the window' or 'sitting in the sun'.
Sunlight is streaming into the room.
Refers to the rays of the sun, often with a nuance of warmth or intensity. Common in phrases like 'strong sunlight' or 'gentle sunlight'.
Literally 'light of the sun'. A more descriptive phrase, used when you want to emphasize the source.
The sunlight is dazzling.
The heat or thermal radiation from the sun, often felt on the skin or affecting temperature.
日光 is the general word for sunlight. 陽射し/日差し refers specifically to the rays or beams of the sun, often with a sense of warmth or intensity. 日差し is more common for heat, while 陽射し can be used for light. In many contexts they are interchangeable.
太陽放射 is a technical term. Using it to talk about sunlight in daily life would sound unnatural. Use 日光 or 陽射し instead.
この地域の年間日射量は非常に高い。
The annual solar radiation amount in this region is very high.
Literally 'sunlight', but used in technical contexts like solar power (太陽光発電). Can refer to the light component of solar radiation.
Solar power generation is one form of renewable energy.
夏の強い陽射しで肌が焼けた。
My skin got burned by the strong summer sunlight.
太陽からの熱放射が地球を暖める。
Thermal radiation from the sun warms the Earth.