ON THE RELATIONSHIP BETWEEN PLANETARY AND SURFACE ALBEDO:MODEL’S COMPARISON AND VALIDATION^*

The simple linear relationship between clear-sky planetary and surface albedo can be adopted for certain accuracy.There are different parameterization schemes of atmospheric correction for different retrieval models.In this paper,several representative retrieval models are compared and tested with observational data from HEIhe basin Field Experiment(HEIFE) in western China.Some evaluations and suggestions on improvement are proposed for models which would be more applicable to plateau and arid areas.