Genese von Schwemmfächern und Fußflächen im semiariden Westen der USA: Fernerkundliche Diagnose und Regionalisierung

Abstract

In geomorphology different models were developed for the interpretation and genesis of alluvial fans and pediments. So far state of the art geomorphologic-geological methods (e.g. analysis of sedimentological parameters) were used. The availability of high resolution digital data permits now the analysis of alluvial fans and pediments on continental scale. With assistance of satellite images and digital elevation models the different controlling factors (tectonic - climatic - glaciofluvial) of alluvial fan and pediment genesis are determined exemplary in the semiarid west of the USA. These factors affect on different scales and spaces of times of the superior hydrography of the landscape. The diagnosis of recent and former landforms and processes allows an interpretation of the landscape genesis and climatic parameters. The remote sensing method was supported by comparative field studies. Finally a regionalization of recent climatic thresholds of alluvial fans and pediments as well as the reconstruction of the paleoclimatic conditions are developed.

Contact Person:
Rene Löhrer, M.A.

Partnerships:
USA: Prof. Ph.D. Lewis Owen, Department of Geology, University of Cincinnati

Funding:
DFG BAT IIA/2

Duration:
10/2005 - 10/2008

[ to the research overview ]

Tectonic in Death Valley/CA (SRTM DEM overlaid with Landsat 5 TM RGB 7-4-2 satellite picture).
Fig. 1: Tectonic in Death Valley/CA (SRTM DEM overlaid with Landsat 5 TM RGB 7-4-2 satellite picture).
Location of key sections and locations of age dating based on literature inquiries.
Fig. 2: Location of key sections and locations of age dating based on literature inquiries.

Publikationen zu diesem Projekt