Computation of Non-Divergent Streamfunction and Irrotational Velocity Potential from the Observed Winds

Abstract

An iterative scheme is presented to compute streamfunction and velocity potential from the observed winds. From the computed fields of streamfunction and velocity potential, the wind field is reconstructed and the reconstructed wind field is compared with the observed wind field. Such comparisons are made for the earlier methods also. The results of intercomparison among all the methods show that the root-mean-square vector error between the observed and the reconstructed total wind is minimum in the present method.