How do I declare a 2d array in C using new

Question

How do I declare a two-dimensional array using new?

For example, for a "typical" array, I would:     

int* ary = new int[Size]

but

int** ary = new int[sizeY][sizeX]

a) doesn't work/compile and b) doesn't accomplish what:

int ary[sizeY][sizeX] 

does