The authors would like to thank Dr. Gerald Browning for the initial guidance and Dr. Thomas Schlatter for his helpful comments during the internal review process, and Dr. Stanley Benjamin for his help in obtaining MAPS data and codes for processing the data. We thank Dr. John Adams for providing us with the multigrid software package for the elliptic solvers. Thanks are also given to Dr. Joann Dennett for the editorial review and to Paul Schultz, Edward Tollerud, and Barry Schwartz for their help in obtaining topographical and precipitation data. Finally, we greatly appreciate the valuable comments and criticism made by Dr. Ying-Hwa Kuo and the anonymous reviewers during the review process.
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