SOUISSI, Mlle ROIYA (2018) Étude de l'apport des données satellitaires pour l'étude du fleuve de Mékong PFE - Project Graduation, ENSTA.
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Abstract
Water is trending towards scarcity at an alarming rate. Thus, its monitoring and management are considered as a vital societal challenge. This monitoring is ensured by remote sensing techniques such as spatial altimetry andmultispectral satellite imagery which are of a crucial importance. Actually, they provide indispensable data in a context of a decreasing number of publicly-available hydrological measurements in many parts of the world. The observation of inland waters, mainly large lakes and rivers, is yet very interesting to study the global water cycle. My internship fits into this context by looking for suitable methods to improve the calculation of surface water volume variations in the Mekong basin. To do so, I started by looking at the water level measurements on the river network, yielded by spatial altimetry. Examination of Jason-2, Jason-3 and Envisat data has proven to be interesting in the quantification of the altimetry strengths and limitations, taking into account the scene complexity. A new processing method was implemented and successfully tested on a case study. Moreover, a study of the water area variations was carried out by means of a comparison between five water mask products. This study pointed out some weaknesses of certain products that can be improved in the future.
Item Type: | Thesis (PFE - Project Graduation) |
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Subjects: | Earth Sciences and Environmental Engineering Physics, Optics |
ID Code: | 7182 |
Deposited By: | Roïya Souissi |
Deposited On: | 27 mars 2019 15:23 |
Dernière modification: | 27 mars 2019 15:23 |
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