Search
Now showing items 1-10 of 15
Indicators of desiccation-driven change in the distal Okavango Delta, Botswana
(Elsevier Ltd; www.elsevier.com/locate/jaridenv, 2007-01)
This work seeks to determine whether riparian woody plant variables respond to drying and salinity regimes in the semi-arid distal Okavango Delta, northern Botswana. Structural and compositional variables were obtained ...
Vegetation cover trends along the Botswana Kalahari transect
(Elsevier; www.elsevier.com/locate/jaridenv, 2003)
Vegetative response aspects of climate change studies include the determination of vegetation cover changes across climatic gradients. Vegetation characteristics and soil moisture measurements were obtained from four ...
Temperature-Emissivity separation with ASTER and LANDSAT 7 validation on the fringe of the Okavango Delta, Botswana
(SPIE, http://link.aip.org, 2004)
Land surface temperatures are important in global change studies, in estimating radiation budget, heat balance studies and as control for climate models. Several algorithms for estimating land surface temperature and ...
Scenarios of the impact of local and upstream changes in climate and water use on hydro-ecology in the Okavango Delta, Botswana
(Elservier, www.elsevier.com, 2006)
Changes in hydrological inputs to the flood-pulsed Okavango Delta result in changes in such flooding characteristics as floodplain water depth, inundation duration and frequency. A mathematical model is used to assess ...
Islands in the Okavango delta as sinks of water-borne nutrients
(Botswana Society, 2005)
Groundwater under islands in the Okavango Delta is a known sink of inorganic dissolved minerals, preventing salinisation of this virtually enclosed evaporation-dominated hydrological system. The Okavango Delta is an ...
Simulation of DOM fluxes in a seasonal floodplain of the Okavango Delta, Botswana
(Elsevier, www.elsevier.com/locate/ecolmodel, 2007)
In order to examine dissolved organic matter (DOM) fluxes in seasonal wetland systems
that expand and contract seasonally, a time-variable model of dissolved organic carbon
(DOC) was developed for a seasonal floodplain ...
Aspects of seasonal dynamics of flooding in the Okavango delta
(Botswana Society, 2005)
Seasonal changes in inundation area and peak flood occurrence in the Okavango Delta are analysed using a multiple regression technique. The multiple regression models developed constitute useful and simple tools for ...
Flooding dynamics in a large low-gradient alluvial fan, the Okavango delta, Botswana, from analysis and interpretation of 30-year hydrometric record
(Hydrology and Earth Systems Sciences, www.hydrology-and-earth-system-sciences.net, 2006)
The Okavango Delta is a flood-pulsed wetland, which supports a large tourism industry and the subsistence
of the local population through the provision of ecosystem services. In order to obtain insight into the influence ...
Water balance and infiltration in a seasonal floodplain in the Okavango Delta, Botswana
(Springer link, http://link.springer.com, 2006)
Water balance in a seasonal floodplain in the Okavango Delta, Botswana was determined for three years (1997–1999). There was no surface outflow, and infiltration to ground water was very large (4.7–9.7 m during 90–175 days ...
Characterization of arsenic occurrence in the water and sediments of the Okavango Delta, NW Botswana
(Elsevier Science B.V. Amsterdam; http://www.elsevier.com/wps/find/journaldescription.cws_home/768/description#description, 2006)
Detailed chemical analyses were performed on surface water, groundwater and sediment samples collected from the
Okavango Delta between February and November 2003 in order to examine the distribution and geochemistry ...