Determination of cloud transmittance for all sky imager based solar nowcasting
نویسندگان
چکیده
منابع مشابه
A Low Cost, Edge Computing, All-Sky Imager for Cloud Tracking and Intra-Hour Irradiance Forecasting
With increasing use of photovoltaic (PV) power generation by utilities and their residential customers, the need for accurate intra-hour and day-ahead solar irradiance forecasting has become critical. This paper details the development of a low cost all-sky imaging system and an intra-hour cloud motion prediction methodology that produces minutes-ahead irradiance forecasts. The SkyImager is des...
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In observing the cloudless sky, one can often notice that the area near the sun is whiter and brighter than the rest of the hemisphere. Additionally, even a slight haze will make a large angular area of the horizon whiter and brighter when the sun is low on the horizon. The human eye has an amazing ability to handle a range of light intensity spanning orders of magnitude. But one of the persist...
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The new spectrometer of the Munich Aerosol Cloud Scanner (specMACS) is a multipurpose hyperspectral cloud and sky imager designated, but is not limited to investigations of cloud–aerosol interactions in Earth’s atmosphere. With its high spectral and spatial resolution, the instrument is designed to measure solar radiation in the visible and shortwave infrared region that is reflected from, or t...
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Most works and studies on satellite-derived cloud motion winds focus on their extraction and quality control, and on their impact on numerical weather prediction models. But cloud motion winds also provide important real-time information on current cloud movement, thus being a valuable input to short-range weather prediction. This paper addresses this important practical aspect and discusses th...
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An all-sky airglow imager with a cooled-CCD camera, in place at Darwin (12.4◦S, 131.0◦E), Australia, since October 2001, has been used to obtain two-dimensional gravity wave images in the mesopause region. Using airglow images of the OI (557.7 nm, emission altitude ∼96 km) and OH-band (720-910 nm, ∼86 km) emissions obtained for October 2001 to August 2002, we investigated the wavelengths, phase...
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ژورنال
عنوان ژورنال: Solar Energy
سال: 2019
ISSN: 0038-092X
DOI: 10.1016/j.solener.2019.02.004