Science Service System

Summary of Proposal HYD2506

TitleOXBOW - Detailed mapping and monitoring of riverine wetlands with TerraSAR-X/ST Mode supported by UAV hyperspectral imaging
Investigator MROZ, Marek - University of Warmia and Mazury in Olsztyn, Department of Photogrammetry and Remote Sensing
Team Members
Dr CHORMANSKI, Jaroslaw - Warsaw University of Live Sciences - SGGW , Division of Hydrology and Water Resources
Dr CROSETTO, Michele - Institute of Geomatics, Active Microwave Unit
Dr FITRZYK, Magdalena - Wroclaw University of Environmental and Life Sciences, Institute of Geodesy and Geoinformatics
SummaryThe aim of the research foreseen in the project is deeper insight into the effects of hydrological processes on geo-ecological conditions taking place in the natural river floodplains, including wetlands in particular, with the experimental use of the most modern achievements of the radar techniques in satellite remote sensing and hyperspectral imaging from the UAV unmanned platform, defined on the base of interdisciplinary, integrated and consistent approach. The main objectives are detailed mapping and monitoring of oxbows linked temporarily to the main river course especially in spring flooding, water flow transfers and vegetation development and succession. Water balance and submerged vegetation associations create specific and changeable eco-hydrological conditions of habitats. Very high resolution TerraSAR-X data will be primarily used for multitemporal and pluriseasonal observations of the test areas in order to monitor and map in details of such a complex environment. Detected products in ST mode at VV and HH polarizations will be acquired at variable incidence angles permitting variable penetration into vegetation structures as well as complex images will be used for insar products exploitation. In order to better understand the results of radar observations and scattering mechanisms generated by different categories of wetland vegetation the ultralight UAV (drone) will be used for taking RGB images considered as a first support in "ground truth" collection during terrain campaigns. At the second stage hyperspectral imaging in visible and near infrared is foreseen for chosen areas, transects and "profiles". This technique will help us in discrimination not only different types of vegetation or its phenology but also water turbidity during flooding. A hyperspectral very flexible in bands definition camera Rikola will be used for these campaigns. The last but not least aspect of the proposal is a comparison between the results achieved using Staring Mode, of ultrafine geometric resolution, supported by optical and hyperspectral imaging with StripMap Dual Polarization - the mode more appropriate for larger areas monitoring and mapping. The funding is assured by Polish National Science Center under the frame of 2012/07/B/ST10/04378 contract number.

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