{"title":"Robert H Webb","description":null,"products":[{"product_id":"cataract-canyon-book-robert-h-webb-9780874807820","title":"Cataract Canyon","description":"This ambitious book will enthrall armchair naturalists and river runners alike, offering a stunning tour through the natural, environmental, and human history of Cataract Canyon, a seventeen-mile run of free-flowing river above Lake Powell in the canyonlands of southern Utah. Setting the stage with preliminary chapters on geology, hydrology, prehistory, geography, biology, and river-running history the authors take the reader on a downriver journey, narrating an exploration of the river that is breathtaking in scope. From the plants and animals that live along its banks to the humans who seek out its rapids, from the wind and water that continue to shape the landscape to the government agencies that seek to control it, all of these become stories woven into the larger fabric of a beautiful, fragile, complex ecosystem where change good or bad is inevitable.","brand":"WoB","offers":[{"title":"US \/ GOOD \/ SBYB","offer_id":49916712419601,"sku":"CIN0874807824G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ WELL_READ \/ SBYB","offer_id":49942998712593,"sku":"CIN0874807824A","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/0874807824.jpg?v=1786134706"},{"product_id":"grand-canyon-a-century-of-change-book-robert-h-webb-9780816515783","title":"Grand Canyon, a Century of Change","description":"Photographs made in Grand Canyon a century ago may provide us today with a sense of history; photographs made a century later from the same vantage points give us a more precise picture of change in this seemingly timeless place. Between 1889 and 1890, Robert Brewster Stanton made photographs every 1-2 miles through the river corridor for the purpose of planning a water-level railroad route and produced the largest collection of photographs of the Colorado River at one point in time. Robert Webb, a USGS hydrologist conducting research on debris flows in the Canyon, obtained the photographs and from 1989 to 1995 replicated all 445 of the views captured by Stanton, matching as closely as possible the original camera positions and lighting conditions. Grand Canyon, a Century of Change assembles the most dramatic of these paired photographs to demonstrate both the persistence of nature and the presence of humanity. Unexpected longevity of some plant species, effects of animal grazing, and expansion of cacti are all captured by the replicate photographs. More telling is evidence of the impact of Glen Canyon Dam: increased riparian vegetation, new marshes, aggraded debris fans, and eroded sand bars. In the accompanying text, Webb provides a thorough analysis of what each pair of photographs shows and places the project in its historical context. Complementing his narrative are six sidebar articles by authorities on Canyon natural history that further attest to a century of change. The level of detail obtained from the photographs represents one of the most extensive long-term monitoring efforts ever conducted in a national park; it is the most detailed documentation effort ever performed using repeat photography. Much more than simply a picture book, Grand Canyon, a Century of Change is an environmental history of the river corridor, a fascinating book that clearly shows the impact of human influence on Grand Canyon and warns us that its future is very much in our hands.","brand":"WoB","offers":[{"title":"US \/ GOOD \/ SBYB","offer_id":50189226410257,"sku":"CIN0816515786G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ NEW \/ INGRAM","offer_id":51008310477073,"sku":"NIN9780816515783","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/0816515786.jpg?v=1786105034"},{"product_id":"repeat-photography-book-robert-h-webb-9781597267137","title":"Repeat Photography","description":"First developed in the 1880s, repeat photography remains an important and cost-effective technique for scientists working to track and study landscape change. This volume explores the technical and geographic scope of this important technique. \"Repeat Photography\" demonstrates the wide range of potential applications, examines new techniques for acquiring data from repeat photography, and clearly shows that repeat photography remains a valuable, and cost-effective means of monitoring change in both developed and developing regions. Over 100 sets of photographs serve as examples. Recent concerns about climate change and its effects on natural landscapes, combined with ongoing concerns about land-use practices, make this state-of-the-art review a timely contribution to the literature.","brand":"WoB","offers":[{"title":"GB \/ NEW \/ INGRAM","offer_id":52678219333905,"sku":"NLS9781597267137","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/9781597267137.jpg?v=1786614765"}],"url":"https:\/\/www.worldofbooks.com\/en-gb\/collections\/author-books-by-robert-h-webb.oembed","provider":"World of Books ","version":"1.0","type":"link"}