Skip all navigation and jump to content Jump to site navigation
NASA Logo - Goddard Space Flight Center

+ NASA Homepage

    
Goddard Space Flight Center
About MODIS News Data Tools /images2 Science Team Science Team Science Team

   + Home
ABOUT MODIS
MODIS Publications Link
MODIS Presentations Link
MODIS Biographies Link
MODIS Science Team Meetings Link
 

 

 

Vickery, KJ; Eckardt, FD (2013). Dust emission controls on the lower Kuiseb River valley, Central Namib. AEOLIAN RESEARCH, 10, 125-133.

Abstract
Global contemporary dust research has identified large inland basins as significant sources of mineral aerosols in the atmosphere. Smaller fluvial sources have received lesser attention despite their global prevalence. To determine the emissive potential of any dust source requires the identification the hydrologic, synoptic and meteorologic state of the system. This study considers the Kuiseb River, which is a significant dust source in southern Africa, and clearly highlights the fluvial-aeolian link in the emission process and emphasises the supply limited nature of such sources. MODIS satellite imagery combined with synoptic circulation and wind speed data were analysed to establish emission frequency in the context of climatology and flood frequency data. Twenty-two emission events were detected between 2005 and 2008, occurring from April to August, driven by north easterly winds largely associated with west coast troughs and berg winds. The ephemeral flooding of the Kuiseb River was identified as the most likely contributor of sediment to the lower reaches while topographic channelling may enhance the wind flow. (C) 2013 Elsevier B.V. All rights reserved.

DOI:

ISSN:

FirstGov logo Privacy Policy and Important Notices NASA logo

Curator: Brandon Maccherone
NASA Official: Shannell Frazier

NASA Home Page Goddard Space Flight Center Home Page