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Book Review: Snow and Glacier Hydrology

The study of snow and glacier hydrology has long been in need of a general text. Classics such as the Handbook of Snow by Gray and Male (1981) and Dynamics of Snow and Ice Masses by Colbeck (1980) have filled this role but are now 2 decades old and out of print. Edited volumes (eg, Sharp et al 1998; Hardy et al 1999) address the subject but are compiled conference proceedings rather than coherent texts. Other recent texts on snow and glaciers (Bennett and Glasser 1996; Benn and Evans 1998; Jones et al 2001) do not direct their attention specifically to the hydrology of these systems. The publication of the book Snow and Glacier Hydrology, therefore, provides a welcome contribution to this subject. This book focuses on a mountain engineering hydrology approach to snow and glaciers and is most suited to the needs of the practitioner working on the water resources of high-altitude and high-precipitation systems. After an introduction the book is organized into 4 main sections: (1) Properties and measurement of snow and snow cover, (2) Snowmelt and its estimation, (3) Snowmelt runoff modeling and forecasting, and (4) Hydrological aspects of glaciers. The beginning is more of what one would expect in a general introduction to water resources, dedicating a great deal of space to defining hydrology and aspects of world water supply, such as large lakes, groundwater, and oceans. The introduction to snow and ice that follows is tenuously connected to the general introduction and is quite dated: for example, the most recent reference on snow-climate interactions dates from 1989. The snow and glaciers section of the introduction is focused on the highmountain case. “Atmosphere and its components” is the first chapter in “Properties and measurement of snow and snow cover.” This chapter goes well beyond the expected subject matter of atmospheric properties, snow crystal formation, orographic effects, and surface winds to describe rainfall distributions, snowmelt chemistry, and mountain winds. The next chapter, “Properties of snow and ice,” provides a light treatment of the structural, mechanical, thermal, and optical properties of snow. The chapter “Measurement of snow” compiles well-known material. The next chapter, “Measurement of depth, water equivalent and area of snow cover,” discusses standard techniques as they were understood 40 years ago, with added material on snow metamorphism. No discussion of the variability of snow water equivalent, vegetation effects, wind redistribution, or sample size is included. The section “Snowmelt and its estimation” surveys primarily empirical techniques but begins with a Snow and Glacier Hydrology