A change detection and thresholding methodology has been adapted from previous studies to determine the extent of flooding for 13 Sentinel-1 synthetic aperture radar images captured during the floods of winter 2015-2016 in Yorkshire, UK. Both available polarisations, VH and VV, have been processed to allow for a comparison of their respective accuracy for delineating surface water. Peak flood extents are found on 29 December 2015 during the aftermath of storms Eva and Frank. Results have been validated against a Sentinel-2 optical image, with both polarisations producing a total accuracy of 97%. Of the two polarisations, VV produces fewer misclassifications, mirroring the similar results reported in previous research. Mapped results are compared to the Environment Agency Flood Maps for Planning (EA FMP), with good correlation observed for inundation on the floodplains. Differences occur away from the floodplains, with the satellite data identifying pluvial flooding not highlighted by the EA FMP.

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A major space-bome radar program is on-going in Europe : the Advanced Synthetic Aperture Radar supported by the European Space Agency.ASAR makes use of an active antenna with 320 C-Band T/R Modules which are dual HN polarization, 10 W transmit power, 3 dB receive noise figure and use both discrete FETs (P. HEMTs and Power GaAs FETs) and GaAs MMICs. Commands and DC supply switching are controlled with an integrated ASIC.Overall size is 213x38.4x22 mm3 and weight is 170 gr.Due to the important amount of modules to be manufactured, the design has been put through a very exhaustive industrialization procedure which is detailled below.