Chris Mannaerts

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Remote sensing of water quality in inland waters requires reliable retrieval algorithms, accurate atmospheric correction and consistent method for uncertainty estimation. In this paper, the GSM semi-analytical inversion model is modified for inland waters to derive inherent optical properties (IOPs) and their spectral dependencies from air and space borne(More)
In this study we evaluated changes in land cover and rainfall in the Upper Gilgel Abbay catchment in the Upper Blue Nile basin and how changes affected stream flow in terms of annual flow, high flows and low flows. Land cover change assessment was through classification analysis of remote sensing based land cover data while assessments on rainfall and(More)
Riparian ecosystems have critical impacts on controlling the non-point source pollution and maintaining the health of aquatic ecosystems. In this study, a process oriented soil denitrification model was extended with algorithms from a simple nitrogen (N) cycle model and coupled to land surface remote sensing data to enhance its performance in spatial and(More)
................................................................................................................ XI GENERAL INTRODUCTION .....................................................................................3 1.1 PROBLEM STATEMENT.......................................................................................3 1.2 SIGNIFICANCE OF SOIL(More)
Specific inherent optical properties (SIOP) of the Berau coastal waters were derived from in situ measurements and inversion of an ocean color model. Field measurements of water-leaving reflectance, total suspended matter (TSM), and chlorophyll a (Chl a) concentrations were carried out during the 2007 dry season. The highest values for SIOP were found in(More)
* Corresponding author. Abstract – This paper discusses results of application of five erosion models with low input data requirements to a semi-arid mountainous catchment in the Bolivian Andes. Input data for land cover was derived from SPOT-5 and MODIS-NDVI time series imagery. Topography was derived from SRTM data and soil and precipitation data were(More)
Nitrogen (N) removal by vegetation uptake is one of the most important functions of riparian buffer zones in preventing non-point source pollution (NSP), and many studies about N uptake at the river reach scale have proven the effectiveness of plants in controlling nutrient pollution. However, at the watershed level, the riparian zones form dendritic(More)
................................................................................................................ XI GENERAL INTRODUCTION .....................................................................................3 1.1 PROBLEM STATEMENT.......................................................................................3 1.2 SIGNIFICANCE OF SOIL(More)