This section discusses the total daily incident shortwave solar energy reaching the surface of the ground over a wide area, taking full account of seasonal variations in the length of the day, the elevation of the Sun above the horizon, and absorption by clouds and other atmospheric constituents. Shortwave radiation includes visible light and ultraviolet radiation.
All other weather data, including cloud cover, precipitation, wind speed and direction, and solar flux, come from NASA's MERRA-2 Modern-Era Retrospective Analysis . This reanalysis combines a variety of wide-area measurements in a state-of-the-art global meteorological model to reconstruct the hourly history of weather throughout the world on a 50-kilometer grid.
Maysun Solar Co., Ltd. is a high-tech enterprise specializing in the production of solar modules. At present, it has developed into a comprehensive energy management company integrating R & D and production of photovoltaic modules, development, installation and maintenance of solar power station, striving to create high-quality products and services for clean and renewable energy.
The US space agency touched off a brief panic when officials in Houston said both main and backup oxygen-generating systems on Mir were not working - and two Russians and one American on board would have to fix them within days or face abandoning the beleaguered space station. As it turned out, the problems had already been resolved when the statement was made, but officials in Moscow had not told their US counterparts. The mixup reportedly reflects the conflicting public relations attitudes of US and Russian space officials. The Russians are apparently much more reluctant to publicize problems on Mir, where solar panels providing energy to the station were still not functioning properly. 041b061a72