- solar zenith angle
- 太阳天顶角
English-Chinese electricity dictionary (电气专业词典). 2013.
English-Chinese electricity dictionary (电气专业词典). 2013.
Zenith — In broad terms, the zenith is the direction pointing directly above a particular location (perpendicular, orthogonal). Since the concept of being above is itself somewhat vague, scientists define the zenith in more rigorous terms. Specifically,… … Wikipedia
Solar tracker — A solar tracker is a device for orienting a solar photovoltaic panel or concentrating solar reflector or lens toward the sun. The sun s position in the sky varies both with the seasons (elevation) and time of day as the sun moves across the sky.… … Wikipedia
hour angle — noun 1. the angular distance along the celestial equator from the observer s meridian to the hour circle of a given celestial body (Freq. 1) • Hypernyms: ↑distance 2. (astronomy) the angular distance of a celestial point measured westward along… … Useful english dictionary
Leaf angle distribution — The Leaf Angle Distribution (or LAD) of a plant canopy refers to the mathematical description of the angular orientation of the leaves in the vegetation. Specifically, if each leaf is conceptually represented by a small flat plate, its… … Wikipedia
SZA — Solar Zenith Angle (Governmental » NASA) * Suiza Foods Corporation (Business » NYSE Symbols) * Sunyaev Zel dovich Array (Academic & Science » Astronomy) * Semelai (Regional » Language Codes (3 Letters)) * Soyo, Angola (Regional » Airport Codes) * … Abbreviations dictionary
Albedo — The albedo of an object is the extent to which it diffusely reflects light from the sun. It is therefore a more specific form of the term reflectivity. Albedo is defined asthe ratio of diffusely reflected to incident electromagnetic radiation. It … Wikipedia
Normalized Difference Vegetation Index — Negative values of NDVI (values approaching 1) correspond to water. Values close to zero ( 0.1 to 0.1) generally correspond to barren areas of rock, sand, or snow. Lastly, low, positive values represent shrub and grassland (approximately 0.2 to 0 … Wikipedia
Air mass coefficient — The air mass coefficient characterizes the solar spectrum after the solar radiation has traveled through the atmosphere. For a thickness l o of the atmosphere, the path length l through the atmosphere for solar radiation incident at angle θ… … Wikipedia
Horario de verano — Artículo principal: Huso horario Véase también: Horario de verano en el mundo … Wikipedia Español
Daylight saving time — This article is about daylight saving time in general. For DST in a specific location, see Daylight saving time by country. Summer time and DST redirect here. For other uses, see Summer time (disambiguation) and DST (disambiguation) … Wikipedia
Langley extrapolation — is a method for measuring the Sun s radiance with ground based instrumentation,and thus remove the effect of the atmosphere. It is based on repeated measurements with a sun photometer operated at a given location for a cloudless morning or… … Wikipedia