A new model of topographic effects on the distribution of loess
A model of topographic influence on the regional transport and accumulation of loess in sparsely vegetated landscapes is proposed, based on the critical role played by saltating eolian sand in the entrainment and long-distance transport of finer
-grained suspended dust. Regional and local patterns of distribution of late Wisconsinan loess in parts of the Upper Mississippi River basin are closely related to the distribution of topographic obstacles to sand transport. Topographic obstacles and dense
Frequentslope failures of the forereef dropoff occur in living coral reefs on the island of Bonaire in the southern Caribbean. Topographic profiles of 10 sites were taken perpendicular to shore, followed by an estimation of coral ages along
the topographic profiles. Comparisons of coral age and adjacent slope angle indicated that the steeper slopes are older and that mass failure of the slope reduces the steepness of the forereef front and destroys the coral community along the disturbed slope
Altitude ; Glacier ; Glacier fluctuation ; Glacier mass balance ; Precipitation ; Snow ; Temperature ; Topographic map ; United States of America ; Washington State
Mass changes of Blue Glacier, USA, are calculated from topographic maps made from vertical aerial photography in late summer of 1939, 1952, 1957, and 1987, along with laser altimetry flown in June 1996. Changes in elevation between maps were
Comparing traditional mass balance measurements with long-term volume change extracted from topographical maps : a case study of Storbreen glacier in Jotunheimen, Norway, for the period 1940-1997
eruption history and morphology at Mount Etna. The AA. will discuss the reliance of the accuracy of the technique on the quality of the topographic data and on the precise alignment of data sets acquired before and after the eruption.
The sequential changes in the position of banklines as a result of bank erosion, as well as various changes in the channel have been studied in the Subansiri river in Assam, India. The study was carried out from available topographic maps of 1920
The channel dynamics of an ephemeral sandbed river, the Metsemotlhaba in southeast Botswana, were studied over a 5 year period using tagged magnetic particles of pebble and cobble size, scour chains and topographic cross-sections, with particular
photogrammetric approach is used to examine surface morphological change at a small scale (1 mm). These topographical changes are then related to sub-surface crust development as observed by the use of impregnated polished blocks. The results reveal a cut and fill
Field observation combined with remote sensing, employing both Landsat images and aerial photographs, and the analysis of topographic, geomorphological and geological maps show that the regional contrasts in seismicity and associated tectonic
This paper discusses multiple scales of ice accumulation and forest disturbance resulting from the 1994 storms in southwestern Virginia. The AA. first examine synoptic-scale meteorology of the two 1994 storms. Second, they discuss topographic
This paper will review compilation of the 46-year mass balance record for the Lemon Creek Glacier (1953-1998). A comparison of topographic surface maps of the glacier made in 1957 and 1989 provides a rough determination of glacier surface elevation
topographical setting provides both spatial and temporal subdivisions in humid and dry regimes in one region. A combination of ablation measurements and the application of the flux divergence method for the determination of accumulation is proposed.
The AA. investigate the glaciogenic deposits at various topographic settings near the terminal position of low-profile, temperate, piedmont glaciers in the southern Lake District, Chile. Features along lower positions of the slopes include