On the basis of data observed over movable dune in Naiman from July 18 to August 12,2000,diurnal variation of the surface energy budget and the bulk transfer coefficients,the relation between the bulk transfer coefficients and the stability,the relation between the non-dimensional turbulent variances and the stability,were analy.

It has been discussed the relation between the non-dimensional turbulent variances and the stability parameter z/L.

Research on measuring technique for the image lean of telescope system with digital image processing;

Distortion and image lean of prism with second parallelism;

Measuring the image lean of telescope system with CCD;

The algorithm computes the horizontal and vertical difference of distorted image,and proposes judge function to find the main direction which makes the judge function achieve maximum,so as to correct the distorted image.