Two types of longitudinal dune fields and possible mechanisms for their development
Longitudinal dune fields characteried by nearly uniform interdune spacing are distinguished from longitudinal dune fields characterized by fairly variable interdune spacing and high frequencies of dune coalescence. The empirical and theoretical
timescale is estimated for the formation of desert longitudinal dune fields.
Field evaluation of empirical equations in straight alluvial channels
Six experimentally derived formulae that predict the conditions for alternate bar formation and equilibrium bar dimensions are assessed using field data. The study site is an artificially straightened section of the Embarras River located 16 km
Testing a physically-based runoff model against field observations on a Luxembourg hillslope
This paper describes the results of tests undertaken on a physically-based runoff model regarding its predictions at the detailed hillslope scale. These results are compared with field observations from a Luxembourg hillslope with pseudo-gley soils
Field scattering as agricultural risk management : a case study from Cuyo-Cuyo, Department of Puno, Peru
Peasants in the eastern Andean escarpment often have plots spatially removed from each other. Although net yields are reduced 7% on average by the additional travel and transport required to tend dispersed fields, harvests from them buffer
Optical dating of Holocene dune sands in the Ferris Dune Field, Wyoming
The primary subject of this paper is a test of optical dating using sand-sized quartz grains from an independently well-dated Holocene dune sequence from the Ferris dune field, Clear Creek, Wyoming. The use of a stratigraphic sequence provides
the problems of the creation of the German urban system at 1990/1991 right after unification, in the fields of planning and policy, finance, population and economy. The last part gives some sceptical spotlights on future developments in the aforementioned
Fractal analysis is now a growing field of research and an extensive literature concerned with the fractal nature of landscapes is developing. This paper summarizes fractal and related theories and reviews the last decade's research on the fractal
Comments and photographs based on the A.'s field observations of the regional variation in American barns in the context of their origin, construction materials and functions. - (DWG)
Field studies in Malawi, Zambia, Zimbabwe, Swaziland and South Africa indicate that pregnant women in rural areas eat earth, much of which comes from termite mounds. The A. argues that this practice is environmentally adaptive. - (DWG)
Recent Canadian research on permafrost is reviewed, concentrating on permafrost-climate relations, the processes of thermokarst, ice-wedge development, frost heave and soil convection, and ground ice studies. This field of geomorphology is often
of direct interest to engineers and managers of northern resource development. Much of the work on the potential consequences to permafrost of climate change is by modelling. The review concentrates on the use of field evidence in support of analytical
The aim of this work is to clarify the genesis of the different soils and to find out through field and laboratory work, the influences of the rifting of the Gulf of Aden and the previous climatic conditions on soil formation.
This paper presents two approaches to using a data logger to interface between a flow recorder and a sampler, and provides a framework for the collection of high quality data from the field. Two hydrological systems were monitored; both
The water transport/ urban development interface is considered against the background of factors involved in urban transport systems in the context of the broad field of transport geography. A typology is introduced to distinguish between land-based
This paper discusses a relatively new field method that may be useful to monitor the suspended transport balance, and presents findings from a trial application of the method in a large sand bed river. The data were collected in a 10 m deep channel
The paper reviews the changing nature of the growing specialized trends of urban geography in India since independence, with a particular emphasis to the 1980s and early 1990. Urban geography has emerged as a major academic sub-field in India
. The economic, social and nutritional structures of farmer-herders adapt to changes in climate in order to control its effects on fields and families.