The invention relates to a
cloud base height inversion method based on a foundation cloud picture. The
cloud base height inversion method comprises the following steps: (1) selecting places, deployingtwo whole-
sky imaging instruments, setting a
field angle of the two whole-
sky imaging instruments to be not greater than 130 degrees, enabling the two whole-
sky imaging instruments to perform synchronous observation, and enabling the observed foundation cloud picture to have an overlapped area; (2) acquiring the foundation cloud picture synchronously observed by the two all-
sky imaging instruments, performing the
image matching for the two foundation cloud pictures, and selecting the overlapped area with the smallest difference; and (3) for a cloud cluster selected in the overlapped area in amatching manner, and a
cloud base height is inversed by utilizing a geometric relation to obtain an inversion result. Compared with the
satellite cloud picture observed from the
cloud top in the existing inversion method, the foundation cloud picture is observed on the ground by the whole-
sky imaging instruments, i.e., the foundation cloud picture is observed from the cloud base, so that the accuracy of the
cloud base height inversion result is improved, and the effect is more significant for the thick cloud and the low cloud. In addition, the application range of the whole-
sky imaging instrument is also expanded.