The features of solar radiation and surface radiation balance in north China plain: A case study in the Gucheng experimental station

The characteristics of the solar radiation and radiation budget were analyzed by using the surface radiation data observed at Gucheng Meteorological Station of Hebei province for the period from July 2005 to February 2007. The daily and annual change of global radiation, surface albedo, net radiation, photosynthetic active radiation and ultraviolet radiation on the wavelength between 290 nm to 320 nm are analyzed. Meanwhile, the ratios of the net radiation, photosynthetic active radiation and ultraviolet radiation to global radiation are calculated and their daily and annual variations are given.