نتایج جستجو برای: quantitative geomorphology
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Abstract This chapter surveys the history of geomorphology and Earth system science from 1965 to 2000. With roots in Enlightenment thought Hutton, Somerville, Humboldt Darwin, we see a preoccupation with holistic form develop through reductionist, mechanistic ideas nineteenth twentieth century be reawoken 1960s 1970s environmental movements space age, culminating major research programmes set b...
Many recent studies have been devoted to the investigation of the nonlinear dynamics of rainfall or streamflow series based on methods of dynamical systems theory. Although finding evidence for the existence of a low-dimensional deterministic component in rainfall or streamflow is of much interest, not much attention has been paid to the nonlinear dependencies of the two and especially on how t...
Unintended Consequences of Urbanization for Aquatic Ecosystems: A Case Study from the Arizona Desert
H and geomorphology are important determinants of the structure and function of fluvial ecosystems. Streamflow quantity and timing are often viewed as “master variables” limiting the distribution and abundance of riverine species (Poff et al. 1997) and the flux of nutrients into streams (Grimm 1987, Welter et al. 2005). Geomorphic structure—particularly channel form—is known to influence commun...
Many recent studies have been devoted to the investigation of the nonlinear dynamics of rainfall or streamflow series based on methods of dynamical systems theory. Although finding evidence for the existence of a low-dimensional deterministic component in rainfall or streamflow is of much interest, not much attention has been given to the nonlinear dependencies of the two and especially on how ...
Introduction: In May 2008 the Phoenix Lander descended into the north polar region of Mars. It landed at 68.22 N, 234.25 E in a shallow valley about 20 km west of a 10 km crater named Heimdall. Phoenix imaged local geomorphology, determined local ice table depth and analyzed 19 soil samples from within a ~15 m 2 work volume. Important to
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