""...presents a comprehensive treatment of stochastic methods for water flow in saturated aquifers and unsaturated soils in a very tutorial and accessible way."" -You-Kuan Zhang, University of Iowa, in VADOSE ZONE JOURNAL, 2006, VOL. 5, NO. 3 Excerpt from the Foreword by Prof. Shlomo P. Neuman: ""The hydrogeologic properties of natural rocks and soils exhibit spatial variations on a multiplicity of scales. Incorporating such scaling in geostatistical and stochastic analyses of hydrogeologic phenomena has become a major challenge. ...Students, teachers, researchers and practitioners concerned with hydrogeologic uncertainty analysis will find much in this book that is instructive, useful and timely."" --Prof. Shlomo P. Neuman ""Dongxiao has clearly put together an excellent intermediate/advanced text on subsurface flow problems, and I highly recommend it as a graduate level text and as a source of information for the researcher and consultant."" -PURE AND APPLIED GEOPHYSICS ""...a comprehensive and lucid scientific monograph devoted to uncertainty analysis for a wide range of groundwater flow problems."" -JOURNAL OF HYDRAULIC RESEARCH ""This work considers numerous stochastic methods used by researchers for flow description. The methods' positive and negative characteristics are compared and selected methods are shown in examples. ...includes problems at the end of each chapter, making it useful for students and teachers in the field, as well as researchers and practitioners."" BULLETIN AMERICAN METEOROLOGICAL SOCIETY