Experimental determination of the roughness length for temperature over a field of tall grass in central Sweden
The aim of this study was to analyse wind, temperature and humidity profiles, surface radiation temperature, and eddy correlation fluxes of momentum and heat over a grass field in order to obtain a better parameterisation of exchange processes over
such a surface. The study was performed under summer conditions over a formerly cultivated, uniform and well-watered field of tall grass in central Sweden.
A political ecology for Developing Countries ? Progress and paradox in the evolution of a research field
The argument of this paper proceeds as follows. First, I consider the disciplinary, transgressions' of scholars and scholarship as to specify the tendency towards both fragmentation and creative exchange facilitated by the field's evolution. Second
in political ecology. Finally, the radical pretensions of the field are considered in order to show how political ecologists have shown through their work the need for radical change even as they have yet to specify the contours of an alternative social
and ecological praxis. I conclude by briefly considering what the paradoxe of this research field might mean in terms of future challenges for political ecology. - (L'A.).
Spatial variability of soils developing on basalt flows in the Potrillo volcanic field, southern New Mexico : prelude to a chronosequence study
This study seeks to improve the accuracy of a future soil chronosequence study in the Potrillo volcanic field by : further evaluating the evolution of basalt flow surface topography with time; identifying the systematic variability of soils
Field and computer simulation experiments on the formation of desert pavement
of these field simulations were then compared with numerical simulations to check the extent to which the simulation model of Wainwright et al. (1994) reproduces the effects of raindrop erosion.
On secondary circulation, helical motion and Rozovskii-based analysis of time-averaged two-dimensional velocity fields at confluences
In this response to Lane et al. (1999) Time averaged flow structure in the central region of a stream confluence : a discussion, Earth Surface Processes and Landforms, 24, 361-367, the AA. show that their method for decomposing the cross-stream
velocity field into components associated with primary and secondary velocities, as defined by Rozovskii, is not flawed or misleading. Instead, it yields valuable information that illustrates the contribution of secondary circulation and, by inference
Field observations of a debris flow event in the Dolomites
A debris flow event occurred in June 1997 in the Dolomites (Eastern Alps, Italy). The phenomenon was directly observed in the field and recorded by a video camera near its initiation area. The flow was triggered by a short duration, high-intensity
The role of soil creep and slope failure in the landscape evolution of a head water basin : field measurements in a zero order basin of northern Japan
Field measurements of soil creep and slope stability were conducted on a nose, side-slope and hollow in a zero order basin near Sapporo, Hokkaido, northern Japan, and the preferential location of soil creep and slope failure was determined. Soil
This review examines recent publications in the field of Quaternary biogeography and palaeoecology and, in so doing, argues that the discipline needs to embrace dynamism as the convention.
method. The Karelians abandoned the area after a cultivation period of 100 years, then came the Finns with permanent field cultivation. The last 50 years with abandoned fields are clearly represented.