8Philip E Aadanuy and Holee Kyle. El Nino and outgoing longwave radiation: observations from Nimbus-7 ERB[ J ]. Monthly Weather Review, 1986,114: 415-433.
9Dennis L Hartmann and David A Short. On the use of Earth radiation budget statistics for studies of clouds and climate[J ]. Journal of the Atmospheric Sciences, 1980,37:1233-1250.