The Faculty of Mathematics and Natural Sciences: Search
Now showing items 101-110 of 388
Estimation of groundwater recharge in the context of future climate change in the White Volta River Basin, West Africa
(2008)
The White Volta River Basin is one of the major sub-basins of the Volta River Basin of West Africa. It covers about 106,000 km2, and the major riparian countries are Burkina Faso and Ghana. The basin has enough ...
LM-PAFOG - a new three-dimensional fog forecast model with parametrised microphysics
(2008)
The presence of fog and low clouds in the lower atmosphere can have a critical impact on both airborne and ground transports and is often connected with serious accidents. An improvement of fog forecasts in terms of ...
Hydrogeological conceptualisation of a tropical river catchment in a crystalline basement area and transfer into a numerical groundwater flow model: Case study for the Upper Ouémé catchment in Benin
(2008)
The scope of this PhD thesis was the hydrogeological conceptualisation of the Upper Ouémé river catchment in Benin. The study area exceeds 14’500 km2; and is underlain by a crystalline basement. At this setting ...
Evaluation of agricultural land resources in Benin by regionalisation of the marginality index using satellite data
(2008)
In the present work, the marginality index for agricultural land use was utilized to evaluate current and future biophysical resources for agricultural land use of Benin (West Africa) at a 1 km spatial resolution. The ...
Quantifizierung von Aggregationseffekten in Bodenfeuchte-Retrievalalgorithmen
(2008)
In dieser Studie wird eine Modellkette präsentiert und angewendet, die aus dem hydrologischen Modell TOPLATS, dem Strahlungstransportmodell Streamer und dem Mikrowellen-Landoberflächenemissionsmodell LSMEM besteht. Mit ...
Spatio-temporal patterns of tree-growth response to climatic change
(2008)
Trees growing under temperate climate conditions are affected by numerous growth influences. Dendroclimatological analyses of tree-ring chronologies in which the long-term growth/climate relations are investigated, help ...
Soil degradation by water erosion in a sub-humid West-African catchment: a modelling approach considering land use and climate change in Benin
(2008)
Soil degradation threatens agricultural production and food security in Sub-Saharan Africa. In the coming decades, soil degradation, in particular soil erosion, will become worse through the expansion of agriculture into ...
Investigations to quantify individual exposure to solar ultraviolet erythemal radiation including cloud meteorological impact
(2020-07-09)
Combined meteorological and dosimetric ultraviolet (UV) erythemal radiation (UVER) measurements were performed in 2016 and 2017. Based on collected data sets the actual UVER exposure of outdoor working probands is determined ...
Reconstruction of sedimentary environment and climate conditions by multi-geochemical investigations of Late Palaeozoic glacial to postglacial sedimentary sequences from SW-Gondwana
(2004)
The most extensive Phanerozoic glaciation and its termination occurred during the Carboniferous-Permian on the southern hemispherical Gondwana supercontinent. This thesis aims to provide detailed geochemical analyses of ...
Quantitative Niederschlagsbestimmung aus Radardaten: Ein Vergleich von unterschiedlichen Verfahren unter Einbeziehung der Statistischen Objektiven Analyse
(2004)
Die Niederschlagsmessung mit Radar erlaubt eine flächenmäßige Erfassung von Niederschlagsverteilungen in einer hohen räumlichen Auflösung. Hydrologische Anwendungen, wie zum Beispiel die Hochwasservorhersage, erfordern ...