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Depletion of small reservoirs in a semiarid region based on remote sensing

Flohr, M.J. (2017) Depletion of small reservoirs in a semiarid region based on remote sensing.

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Abstract:This thesis shows a way to model water flows during the dry season of a semiarid region in Brazil. The eventual goal to which this thesis is a start, is to be able to use remote sensing as a way of predicting the water decay of reservoirs which are too small and therefore too costly to monitor using permanent monitoring devices or highly intensive fieldwork. To get an idea of the local population and because there is little information available, interviews have been held in the studied area with the inhabitants. Using this way of gathering information the average household composition has been established for the communities. Also the use of different available water sources are clarified during the interviews. With the use of open source satellite images areas have been measured of water surfaces and vegetation areas during the year to be used in a model. This model is an earlier developed model which is used in similar semiarid regions and is able to connect reservoir shape, volume, water height and water surface area during a period of time to each other combined with evaporation values and water balance flows. The results of these measurements are then compared to on-site measurements.
Item Type:Essay (Bachelor)
Faculty:ET: Engineering Technology
Subject:56 civil engineering
Programme:Civil Engineering BSc (56952)
Link to this item:http://purl.utwente.nl/essays/74657
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