Trachte, K.; Nauss, T. & Bendix, J. (2010): <b>The Impact of Different Terrain Configurations on the Formation and Dynamics of Katabatic Flows: Idealised Case Studies</b>. <i>Boundary-Layer Meteorology</i> <b>134</b>, 307-325.
Resource Description
Title:
The Impact of Different Terrain Configurations on the Formation and Dynamics of Katabatic Flows: Idealised Case Studies
FOR816dw ID:
743
Publication Date:
2010-02-01
License and Usage Rights:
Resource Owner(s):
Individual:
Katja Trachte
Contact:
email:
katja.trachte <at> b-tu.de
Atmospheric Processes
Burger Chaussee 2
Campus Nord, LG 4/3
Brandenburg University of Technology Cottbus-Senftenberg
03044 Cottbus
Germany
email:
bendix <at> staff.uni-marburg.de
Faculty of Geography
Deutschhausstraße 10
Philipps University of Marburg
Laboratory for Climatology and Remote Sensing
35032 Marburg
Germany
Abstract:
Impacts of different terrain configurations on the general behaviour of idealised katabatic flows are investigated in a numerical model study.Various simplified terrain models are applied to unveil modifications of the dynamics of nocturnal cold drainage of air as a result of predefined topographical structures. The generated idealised terrain models encompass all major topographical elements of an area in the tropical eastern Andes of southern Ecuador and northern Peru, and the adjacent Amazon. The idealised simulations corroborate that (i) katabatic flows develop over topographical elements (slopes and valleys), that (ii) confluence of katabatic flows in a lowland basin with a concave terrainline occur, and (iii) a complex drainage flow system regime directed into such a basin can sustain the confluence despite varying slope angles and slope distances.<br/>
