Вы приступаете к изучению расширения к ArcGIS компании ESRI®  модуля Geostatistical Analyst, предназначенного для усовершенствованного моделирова ния поверхности с использованием детерминистских и геостатистических методов. Модуль Geostatistical Analyst расширяет возможности ArcMap за счет появления дополнительных инструментов, предназначенных для исследовательского анализа пространственных данных, а также Мастера операций геостатистики, который поможет вам в процессе построения статистически достоверной поверхности. Поверхности, создаваемые с помощью модуля Geostatistical Analyst, могут быть впоследствии использованы в моделях ГИС и для визуализации, в том числе с использованием таких расширений ArcGIS, как ArcGIS Spatial Analyst и 3D Analyst. <...>

The magical instruments of the astronomer reveal no element new to chemistry and show the earth to be a marvellously complete sample of the universe of matter, whether in planet, star, nebula, galaxy, or super-galaxy. Thus from earth science comes a better understanding of the universe. Geology, tracing the dramatic history of one of the celestial wanderers, deepens our concept of Time and still further broadens the foundation of a sound philosophy. Pierre Termier meant much when he wrote: "The earth declares the glory of God." He had devoted his life to a study of the stately processes that have governed the evolution of our globe through two billions of years. Yet, like other professional geologists, he found ordinary words inadequate for the new, unfamiliar ideas. Technical terms have had to be invented. Here is a difficulty when the geologist attempts to tell his story. Technicality puts a barrier between the specialists and the great public or even the beginner in the professional study of earth's history. For this trouble there is only one medicine—good-will. However, with good-will on both sides the geologist can share with others the thrills that spring from an incomparable moving picture.

Based on four decades of research by Professor Andrew S. Goudie, this volume provides a state-of-the-art synthesis of our understanding of desert geomorphology. It presents a truly international perspective, with examples from all over the world. Extensively referenced and illustrated, it covers such topics as the importance of past climatic changes, the variability of different desert environments, rock breakdown, wind erosion and dust storm generation, sand dunes, fluvial and slope forms and processes, the role of the applied geomorphologist in desert development and conservation and the Earth as an analogue for other planetary bodies. This book is destined to become the classic volume on arid and semi-arid geomorphology for advanced students and researchers in physical geography, geomorphology, Earth science, sedimentology, environmental science and archaeology <...>

Twenty years have passed since publication of U.S. Geological Survey Professional Papers 366, Ash-flow tuffs: Their origin, geologic relations and identification, by. С S. Ross and R. L. Smith (1961), and 354-F, Zones and zonal variations in ash-flows, by R. L. Smith (I960). As these papers are now being republished, perhaps a few words are appropriate to clarify their historical evolution and to view them in the context of the present time.